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MITProfessionalX: 6.BDx Tackling the Challenges of Big Data (February 3, 2015 - March 17, 2015)

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Welcome to the Course

  • How to Participate in the Course

  • Technical Assistance and Contacts

  • Introduction: Big Data Challenges

  • Assessment 1

    Assessment due Mar 16, 2015 at 23:30 UTC

    Graded
Section

Introduction and Use Cases

  • 1.0 Introduction: Use Cases

  • 1.1 Case Study: Transportation

  • 1.2 Case Study: Visualizing Twitter

  • Assessment 2

    Assessment due Mar 16, 2015 at 23:30 UTC

    Graded
Section
  • Discussion 1

Big Data Collection

  • 2.0 Introduction: Big Data Collection

  • 2.1 Data Cleaning and Integration

  • 2.2 Hosted Data Platforms and the Cloud

  • Assessment 3

    Assessment due Mar 16, 2015 at 23:30 UTC

    Graded
Section
  • Discussion 2

Big Data Storage

  • 3.0 Introduction Big Data Storage

  • 3.1 Modern Databases , current section

  • 3.2 Distributed Computing Platforms

  • 3.3 NoSQL, NewSQL

  • Assessment 4

    Assessment due Mar 16, 2015 at 23:30 UTC

    Graded
Section
  • Discussion 3

Big Data Systems

  • 4.0 Introduction Big Data Systems

  • 4.1 Security

  • 4.2 Multicore Scalability

  • 4.3 Visualization and User Interfaces

  • Assessment 5

    Assessment due Mar 16, 2015 at 23:30 UTC

    Graded
Section
  • Discussion 4

Big Data Analytics

  • 5.0 Introduction Big Data Analytics

  • 5.1 Fast Algorithms I

  • 5.2 Fast Algorithms II

  • 5.3 Data Compression

  • 5.4 Machine Learning Tools

  • 5.5 Case Study: Information Summarization

  • 5.6 Applications: Medicine

  • 5.7 Applications: Finance

  • Assessment 6

    Assessment due Mar 16, 2015 at 23:30 UTC

    Graded
Section
  • Discussion 5

  1. video MIT Professional Education Online X Programs Video 3.1.1

  2. video MIT Professional Education Online X Programs Video 3.1.2

  3. video MIT Professional Education Online X Programs Video 3.1.3

  4. video MIT Professional Education Online X Programs Video 3.1.4

  5. video MIT Professional Education Online X Programs Video 3.1.5

  6. video Online X Programs Video 3.1.6

  7. video Online X Programs Video 3.1.7

  8. video Online X Programs Video 3.1.8

  9. video Online X Programs Video 3.1.9

  10. video MIT Professional Education - Online X Programs Video 3.1.10

  11. video MIT Professional Education - Online X Programs Video 3.1.11

<div class="xblock xblock-student_view xblock-student_view-vertical" data-request-token="efe0229006df11e584381286d0864b53" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_vertical;_b966642d5bc44aee816fd8f3de4bb8d1" data-block-type="vertical" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <div class="vert-mod"> <div class="vert vert-0" data-id="i4x://MITProfessionalX/6.BD_2X/html/70424ea28bee45e3bb770fe45598dbb5"> <div class="xblock xblock-student_view xblock-student_view-html xmodule_display xmodule_HtmlModule" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-block-type="html" data-request-token="efe0229006df11e584381286d0864b53" data-runtime-version="1" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_html;_70424ea28bee45e3bb770fe45598dbb5" data-type="HTMLModule" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "HTMLModule"} </script> <p><img alt="MIT Professional Education Online X Program" src="/c4x/MITProfessionalX/6.BD_2X/asset/MITPE-OnlineX-Programs-Logo.jpg" /></p> </div> </div> <div class="vert vert-1" data-id="i4x://MITProfessionalX/6.BD_2X/video/0a86a41f783e4879b21552dde0b086ef"> <div class="xblock xblock-student_view xblock-student_view-video xmodule_display xmodule_VideoModule" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-block-type="video" data-request-token="efe0229006df11e584381286d0864b53" data-runtime-version="1" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_0a86a41f783e4879b21552dde0b086ef" data-type="Video" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "Video"} </script> <h2>Video 3.1.1</h2> <div id="video_i4x-MITProfessionalX-6_BD_2X-video-0a86a41f783e4879b21552dde0b086ef" class="video closed" data-streams="" data-sub="MITBIGDAT313-G0301R2_100" data-sources='["https://d2f1egay8yehza.cloudfront.net/mit-bigdata/MITBIGDAT313-G0301R2_100.mp4" ;, "https://d2f1egay8yehza.cloudfront.net/mit-bigdata/MITBIGDAT313-G0301R2_100.webm"]' ; data-save-state-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_0a86a41f783e4879b21552dde0b086ef/handler/xmodule_handler/save_user_state" data-caption-data-dir="None" data-show-captions="true" data-general-speed="1.0" data-speed="null" data-saved-video-position="387.0" data-start="0.0" data-end="0.0" data-transcript-language="en" data-transcript-languages='{"en": "English"}' data-autoplay="False" data-yt-test-timeout="1500" data-yt-api-url="www.youtube.com/iframe_api" ; data-yt-test-url="gdata.youtube.com/feeds/api/videos/" ; data-transcript-translation-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_0a86a41f783e4879b21552dde0b086ef/handler/transcript/translation" data-transcript-available-translations-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_0a86a41f783e4879b21552dde0b086ef/handler/transcript/available_translations" data-autohide-html5="False" tabindex="-1" > <div class="focus_grabber first"></div> <div class="tc-wrapper"> <a href="#before-transcript_i4x-MITProfessionalX-6_BD_2X-video-0a86a41f783e4879b21552dde0b086ef" class="nav-skip sr">Skip to a navigable version of this video's transcript.</a> <article class="video-wrapper"> <span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span> <span tabindex="-1" class="btn-play is-hidden" aria-hidden="true" aria-label="Play video"></span> <div class="video-player-pre"></div> <section class="video-player"> <div id="i4x-MITProfessionalX-6_BD_2X-video-0a86a41f783e4879b21552dde0b086ef"></div> <h3 class="hidden">No playable video sources found.</h3> </section> <div class="video-player-post"></div> <section class="video-controls is-hidden"> <div class="slider" title="Video position"></div> <div> <ul class="vcr"> <li><a class="video_control" href="#" title="Play" role="button" aria-disabled="false"></a></li> <li><div class="vidtime">0:00 / 0:00</div></li> </ul> <div class="secondary-controls"> <div class="speeds menu-container"> <a class="speed-button" href="#" title="Speeds" role="button" aria-disabled="false"> <span class="label">Speed</span> <span class="value"></span> </a> <ol class="video-speeds menu" role="menu"></ol> </div> <div class="volume"> <a href="#" role="button" aria-disabled="false" title="Volume" aria-label="Click on this button to mute or unmute this video or press UP or DOWN buttons to increase or decrease volume level."></a> <div role="presentation" class="volume-slider-container"> <div class="volume-slider"></div> </div> </div> <a href="#" class="add-fullscreen" title="Fill browser" role="button" aria-disabled="false">Fill browser</a> <a href="#" class="quality-control is-hidden" title="HD off" role="button" aria-disabled="false">HD off</a> <div class="lang menu-container"> <a href="#" class="hide-subtitles" title="Turn off captions" role="button" aria-disabled="false">Turn off captions</a> </div> </div> </div> </section> <a class="nav-skip sr" id="before-transcript_i4x-MITProfessionalX-6_BD_2X-video-0a86a41f783e4879b21552dde0b086ef" href="#after-transcript_i4x-MITProfessionalX-6_BD_2X-video-0a86a41f783e4879b21552dde0b086ef">Skip to end of transcript.</a> </article> <ol id="transcript-captions" class="subtitles" tabindex="0" role="group" aria-label="Activating an item in this group will spool the video to the corresponding time point. To skip transcript, go to previous item."> <li></li> </ol> </div> <a class="nav-skip sr" id="after-transcript_i4x-MITProfessionalX-6_BD_2X-video-0a86a41f783e4879b21552dde0b086ef" href="#before-transcript_i4x-MITProfessionalX-6_BD_2X-video-0a86a41f783e4879b21552dde0b086ef">Go back to start of transcript.</a> <div class="focus_grabber last"></div> <ul class="wrapper-downloads"> <li class="video-tracks video-download-button"> <a href="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_0a86a41f783e4879b21552dde0b086ef/handler/transcript/download">Download transcript</a> <div class="a11y-menu-container"> <a class="a11y-menu-button" href="#" title=".srt">.srt</a> <ol class="a11y-menu-list"> <li class="a11y-menu-item active"> <a class="a11y-menu-item-link" href="#srt" title="SubRip (.srt) file" data-value="srt"> SubRip (.srt) file </a> </li> <li class="a11y-menu-item"> <a class="a11y-menu-item-link" href="#txt" title="Text (.txt) file" data-value="txt"> Text (.txt) file </a> </li> </ol> </div> </li> </ul> </div> </div> </div> </div> </div>
<div class="xblock xblock-student_view xblock-student_view-vertical" data-request-token="efe0229006df11e584381286d0864b53" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_vertical;_4871fafab4a24ce194a684ed5b405fc3" data-block-type="vertical" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <div class="vert-mod"> <div class="vert vert-0" data-id="i4x://MITProfessionalX/6.BD_2X/html/6d8e80c503b44dbbabdbcb0a22ea5a3c"> <div class="xblock xblock-student_view xblock-student_view-html xmodule_display xmodule_HtmlModule" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-block-type="html" data-request-token="efe0229006df11e584381286d0864b53" data-runtime-version="1" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_html;_6d8e80c503b44dbbabdbcb0a22ea5a3c" data-type="HTMLModule" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "HTMLModule"} </script> <p><img alt="MIT Professional Education Online X Program" src="/c4x/MITProfessionalX/6.BD_2X/asset/MITPE-OnlineX-Programs-Logo.jpg" /></p> </div> </div> <div class="vert vert-1" data-id="i4x://MITProfessionalX/6.BD_2X/video/2805e15c93384a29b17f965e5d183e78"> <div class="xblock xblock-student_view xblock-student_view-video xmodule_display xmodule_VideoModule" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-block-type="video" data-request-token="efe0229006df11e584381286d0864b53" data-runtime-version="1" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_2805e15c93384a29b17f965e5d183e78" data-type="Video" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "Video"} </script> <h2>Video 3.1.2</h2> <div id="video_i4x-MITProfessionalX-6_BD_2X-video-2805e15c93384a29b17f965e5d183e78" class="video closed" data-streams="" data-sub="MITBIGDAT313-G0302R1_100" data-sources='["https://d2f1egay8yehza.cloudfront.net/mit-bigdata/MITBIGDAT313-G0302R1_100.mp4" ;, "https://d2f1egay8yehza.cloudfront.net/mit-bigdata/MITBIGDAT313-G0302R1_100.webm"]' ; data-save-state-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_2805e15c93384a29b17f965e5d183e78/handler/xmodule_handler/save_user_state" data-caption-data-dir="None" data-show-captions="true" data-general-speed="1.0" data-speed="null" data-saved-video-position="787.0" data-start="0.0" data-end="0.0" data-transcript-language="en" data-transcript-languages='{"en": "English"}' data-autoplay="False" data-yt-test-timeout="1500" data-yt-api-url="www.youtube.com/iframe_api" ; data-yt-test-url="gdata.youtube.com/feeds/api/videos/" ; data-transcript-translation-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_2805e15c93384a29b17f965e5d183e78/handler/transcript/translation" data-transcript-available-translations-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_2805e15c93384a29b17f965e5d183e78/handler/transcript/available_translations" data-autohide-html5="False" tabindex="-1" > <div class="focus_grabber first"></div> <div class="tc-wrapper"> <a href="#before-transcript_i4x-MITProfessionalX-6_BD_2X-video-2805e15c93384a29b17f965e5d183e78" class="nav-skip sr">Skip to a navigable version of this video's transcript.</a> <article class="video-wrapper"> <span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span> <span tabindex="-1" class="btn-play is-hidden" aria-hidden="true" aria-label="Play video"></span> <div class="video-player-pre"></div> <section class="video-player"> <div id="i4x-MITProfessionalX-6_BD_2X-video-2805e15c93384a29b17f965e5d183e78"></div> <h3 class="hidden">No playable video sources found.</h3> </section> <div class="video-player-post"></div> <section class="video-controls is-hidden"> <div class="slider" title="Video position"></div> <div> <ul class="vcr"> <li><a class="video_control" href="#" title="Play" role="button" aria-disabled="false"></a></li> <li><div class="vidtime">0:00 / 0:00</div></li> </ul> <div class="secondary-controls"> <div class="speeds menu-container"> <a class="speed-button" href="#" title="Speeds" role="button" aria-disabled="false"> <span class="label">Speed</span> <span class="value"></span> </a> <ol class="video-speeds menu" role="menu"></ol> </div> <div class="volume"> <a href="#" role="button" aria-disabled="false" title="Volume" aria-label="Click on this button to mute or unmute this video or press UP or DOWN buttons to increase or decrease volume level."></a> <div role="presentation" class="volume-slider-container"> <div class="volume-slider"></div> </div> </div> <a href="#" class="add-fullscreen" title="Fill browser" role="button" aria-disabled="false">Fill browser</a> <a href="#" class="quality-control is-hidden" title="HD off" role="button" aria-disabled="false">HD off</a> <div class="lang menu-container"> <a href="#" class="hide-subtitles" title="Turn off captions" role="button" aria-disabled="false">Turn off captions</a> </div> </div> </div> </section> <a class="nav-skip sr" id="before-transcript_i4x-MITProfessionalX-6_BD_2X-video-2805e15c93384a29b17f965e5d183e78" href="#after-transcript_i4x-MITProfessionalX-6_BD_2X-video-2805e15c93384a29b17f965e5d183e78">Skip to end of transcript.</a> </article> <ol id="transcript-captions" class="subtitles" tabindex="0" role="group" aria-label="Activating an item in this group will spool the video to the corresponding time point. 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<div class="xblock xblock-student_view xblock-student_view-vertical" data-request-token="efe0229006df11e584381286d0864b53" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_vertical;_40ae0f141a524447bb2db49ff91f9169" data-block-type="vertical" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <div class="vert-mod"> <div class="vert vert-0" data-id="i4x://MITProfessionalX/6.BD_2X/html/4193c986005b4f8ab9823ada6ea95d27"> <div class="xblock xblock-student_view xblock-student_view-html xmodule_display xmodule_HtmlModule" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-block-type="html" data-request-token="efe0229006df11e584381286d0864b53" data-runtime-version="1" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_html;_4193c986005b4f8ab9823ada6ea95d27" data-type="HTMLModule" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "HTMLModule"} </script> <p><img alt="MIT Professional Education Online X Program" src="/c4x/MITProfessionalX/6.BD_2X/asset/MITPE-OnlineX-Programs-Logo.jpg" /></p> </div> </div> <div class="vert vert-1" data-id="i4x://MITProfessionalX/6.BD_2X/video/e4787fdd82fa494896a47935e5032a05"> <div class="xblock xblock-student_view xblock-student_view-video xmodule_display xmodule_VideoModule" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-block-type="video" data-request-token="efe0229006df11e584381286d0864b53" data-runtime-version="1" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_e4787fdd82fa494896a47935e5032a05" data-type="Video" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "Video"} </script> <h2>Video 3.1.3</h2> <div id="video_i4x-MITProfessionalX-6_BD_2X-video-e4787fdd82fa494896a47935e5032a05" class="video closed" data-streams="" data-sub="MITBIGDAT313-G0303A1_100" data-sources='["https://d2f1egay8yehza.cloudfront.net/mit-bigdata/MITBIGDAT313-G0303A1_100.mp4" ;, "https://d2f1egay8yehza.cloudfront.net/mit-bigdata/MITBIGDAT313-G0303A1_100.webm"]' ; data-save-state-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_e4787fdd82fa494896a47935e5032a05/handler/xmodule_handler/save_user_state" data-caption-data-dir="None" data-show-captions="true" data-general-speed="1.0" data-speed="null" data-saved-video-position="0.0" data-start="0.0" data-end="0.0" data-transcript-language="en" data-transcript-languages='{"en": "English"}' data-autoplay="False" data-yt-test-timeout="1500" data-yt-api-url="www.youtube.com/iframe_api" ; data-yt-test-url="gdata.youtube.com/feeds/api/videos/" ; data-transcript-translation-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_e4787fdd82fa494896a47935e5032a05/handler/transcript/translation" data-transcript-available-translations-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_e4787fdd82fa494896a47935e5032a05/handler/transcript/available_translations" data-autohide-html5="False" tabindex="-1" > <div class="focus_grabber first"></div> <div class="tc-wrapper"> <a href="#before-transcript_i4x-MITProfessionalX-6_BD_2X-video-e4787fdd82fa494896a47935e5032a05" class="nav-skip sr">Skip to a navigable version of this video's transcript.</a> <article class="video-wrapper"> <span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span> <span tabindex="-1" class="btn-play is-hidden" aria-hidden="true" aria-label="Play video"></span> <div class="video-player-pre"></div> <section class="video-player"> <div id="i4x-MITProfessionalX-6_BD_2X-video-e4787fdd82fa494896a47935e5032a05"></div> <h3 class="hidden">No playable video sources found.</h3> </section> <div class="video-player-post"></div> <section class="video-controls is-hidden"> <div class="slider" title="Video position"></div> <div> <ul class="vcr"> <li><a class="video_control" href="#" title="Play" role="button" aria-disabled="false"></a></li> <li><div class="vidtime">0:00 / 0:00</div></li> </ul> <div class="secondary-controls"> <div class="speeds menu-container"> <a class="speed-button" href="#" title="Speeds" role="button" aria-disabled="false"> <span class="label">Speed</span> <span class="value"></span> </a> <ol class="video-speeds menu" role="menu"></ol> </div> <div class="volume"> <a href="#" role="button" aria-disabled="false" title="Volume" aria-label="Click on this button to mute or unmute this video or press UP or DOWN buttons to increase or decrease volume level."></a> <div role="presentation" class="volume-slider-container"> <div class="volume-slider"></div> </div> </div> <a href="#" class="add-fullscreen" title="Fill browser" role="button" aria-disabled="false">Fill browser</a> <a href="#" class="quality-control is-hidden" title="HD off" role="button" aria-disabled="false">HD off</a> <div class="lang menu-container"> <a href="#" class="hide-subtitles" title="Turn off captions" role="button" aria-disabled="false">Turn off captions</a> </div> </div> </div> </section> <a class="nav-skip sr" id="before-transcript_i4x-MITProfessionalX-6_BD_2X-video-e4787fdd82fa494896a47935e5032a05" href="#after-transcript_i4x-MITProfessionalX-6_BD_2X-video-e4787fdd82fa494896a47935e5032a05">Skip to end of transcript.</a> </article> <ol id="transcript-captions" class="subtitles" tabindex="0" role="group" aria-label="Activating an item in this group will spool the video to the corresponding time point. To skip transcript, go to previous item."> <li></li> </ol> </div> <a class="nav-skip sr" id="after-transcript_i4x-MITProfessionalX-6_BD_2X-video-e4787fdd82fa494896a47935e5032a05" href="#before-transcript_i4x-MITProfessionalX-6_BD_2X-video-e4787fdd82fa494896a47935e5032a05">Go back to start of transcript.</a> <div class="focus_grabber last"></div> <ul class="wrapper-downloads"> <li class="video-tracks video-download-button"> <a href="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_e4787fdd82fa494896a47935e5032a05/handler/transcript/download">Download transcript</a> <div class="a11y-menu-container"> <a class="a11y-menu-button" href="#" title=".srt">.srt</a> <ol class="a11y-menu-list"> <li class="a11y-menu-item active"> <a class="a11y-menu-item-link" href="#srt" title="SubRip (.srt) file" data-value="srt"> SubRip (.srt) file </a> </li> <li class="a11y-menu-item"> <a class="a11y-menu-item-link" href="#txt" title="Text (.txt) file" data-value="txt"> Text (.txt) file </a> </li> </ol> </div> </li> </ul> </div> </div> </div> </div> </div>
<div class="xblock xblock-student_view xblock-student_view-vertical" data-request-token="efe0229006df11e584381286d0864b53" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_vertical;_814f5ea904644455ab599f6d6ab2ef08" data-block-type="vertical" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <div class="vert-mod"> <div class="vert vert-0" data-id="i4x://MITProfessionalX/6.BD_2X/html/5a76c2db82bb45fc96bb7e21ec8d16e4"> <div class="xblock xblock-student_view xblock-student_view-html xmodule_display xmodule_HtmlModule" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-block-type="html" data-request-token="efe0229006df11e584381286d0864b53" data-runtime-version="1" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_html;_5a76c2db82bb45fc96bb7e21ec8d16e4" data-type="HTMLModule" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "HTMLModule"} </script> <p><img alt="MIT Professional Education Online X Program" src="/c4x/MITProfessionalX/6.BD_2X/asset/MITPE-OnlineX-Programs-Logo.jpg" /></p> </div> </div> <div class="vert vert-1" data-id="i4x://MITProfessionalX/6.BD_2X/video/66bc6e2c96e34682aaec9c8a33be4424"> <div class="xblock xblock-student_view xblock-student_view-video xmodule_display xmodule_VideoModule" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-block-type="video" data-request-token="efe0229006df11e584381286d0864b53" data-runtime-version="1" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_66bc6e2c96e34682aaec9c8a33be4424" data-type="Video" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "Video"} </script> <h2>Video 3.1.4</h2> <div id="video_i4x-MITProfessionalX-6_BD_2X-video-66bc6e2c96e34682aaec9c8a33be4424" class="video closed" data-streams="" data-sub="MITBIGDAT313-G0303B0_100" data-sources='["https://d2f1egay8yehza.cloudfront.net/mit-bigdata/MITBIGDAT313-G0303B0_100.mp4" ;, "https://d2f1egay8yehza.cloudfront.net/mit-bigdata/MITBIGDAT313-G0303B0_100.webm"]' ; data-save-state-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_66bc6e2c96e34682aaec9c8a33be4424/handler/xmodule_handler/save_user_state" data-caption-data-dir="None" data-show-captions="true" data-general-speed="1.0" data-speed="null" data-saved-video-position="301.0" data-start="0.0" data-end="0.0" data-transcript-language="en" data-transcript-languages='{"en": "English"}' data-autoplay="False" data-yt-test-timeout="1500" data-yt-api-url="www.youtube.com/iframe_api" ; data-yt-test-url="gdata.youtube.com/feeds/api/videos/" ; data-transcript-translation-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_66bc6e2c96e34682aaec9c8a33be4424/handler/transcript/translation" data-transcript-available-translations-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_66bc6e2c96e34682aaec9c8a33be4424/handler/transcript/available_translations" data-autohide-html5="False" tabindex="-1" > <div class="focus_grabber first"></div> <div class="tc-wrapper"> <a href="#before-transcript_i4x-MITProfessionalX-6_BD_2X-video-66bc6e2c96e34682aaec9c8a33be4424" class="nav-skip sr">Skip to a navigable version of this video's transcript.</a> <article class="video-wrapper"> <span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span> <span tabindex="-1" class="btn-play is-hidden" aria-hidden="true" aria-label="Play video"></span> <div class="video-player-pre"></div> <section class="video-player"> <div id="i4x-MITProfessionalX-6_BD_2X-video-66bc6e2c96e34682aaec9c8a33be4424"></div> <h3 class="hidden">No playable video sources found.</h3> </section> <div class="video-player-post"></div> <section class="video-controls is-hidden"> <div class="slider" title="Video position"></div> <div> <ul class="vcr"> <li><a class="video_control" href="#" title="Play" role="button" aria-disabled="false"></a></li> <li><div class="vidtime">0:00 / 0:00</div></li> </ul> <div class="secondary-controls"> <div class="speeds menu-container"> <a class="speed-button" href="#" title="Speeds" role="button" aria-disabled="false"> <span class="label">Speed</span> <span class="value"></span> </a> <ol class="video-speeds menu" role="menu"></ol> </div> <div class="volume"> <a href="#" role="button" aria-disabled="false" title="Volume" aria-label="Click on this button to mute or unmute this video or press UP or DOWN buttons to increase or decrease volume level."></a> <div role="presentation" class="volume-slider-container"> <div class="volume-slider"></div> </div> </div> <a href="#" class="add-fullscreen" title="Fill browser" role="button" aria-disabled="false">Fill browser</a> <a href="#" class="quality-control is-hidden" title="HD off" role="button" aria-disabled="false">HD off</a> <div class="lang menu-container"> <a href="#" class="hide-subtitles" title="Turn off captions" role="button" aria-disabled="false">Turn off captions</a> </div> </div> </div> </section> <a class="nav-skip sr" id="before-transcript_i4x-MITProfessionalX-6_BD_2X-video-66bc6e2c96e34682aaec9c8a33be4424" href="#after-transcript_i4x-MITProfessionalX-6_BD_2X-video-66bc6e2c96e34682aaec9c8a33be4424">Skip to end of transcript.</a> </article> <ol id="transcript-captions" class="subtitles" tabindex="0" role="group" aria-label="Activating an item in this group will spool the video to the corresponding time point. To skip transcript, go to previous item."> <li></li> </ol> </div> <a class="nav-skip sr" id="after-transcript_i4x-MITProfessionalX-6_BD_2X-video-66bc6e2c96e34682aaec9c8a33be4424" href="#before-transcript_i4x-MITProfessionalX-6_BD_2X-video-66bc6e2c96e34682aaec9c8a33be4424">Go back to start of transcript.</a> <div class="focus_grabber last"></div> <ul class="wrapper-downloads"> <li class="video-tracks video-download-button"> <a href="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_66bc6e2c96e34682aaec9c8a33be4424/handler/transcript/download">Download transcript</a> <div class="a11y-menu-container"> <a class="a11y-menu-button" href="#" title=".srt">.srt</a> <ol class="a11y-menu-list"> <li class="a11y-menu-item active"> <a class="a11y-menu-item-link" href="#srt" title="SubRip (.srt) file" data-value="srt"> SubRip (.srt) file </a> </li> <li class="a11y-menu-item"> <a class="a11y-menu-item-link" href="#txt" title="Text (.txt) file" data-value="txt"> Text (.txt) file </a> </li> </ol> </div> </li> </ul> </div> </div> </div> </div> </div>
<div class="xblock xblock-student_view xblock-student_view-vertical" data-request-token="efe0229006df11e584381286d0864b53" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_vertical;_62269d89eacf4561aafbfc4319db7164" data-block-type="vertical" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <div class="vert-mod"> <div class="vert vert-0" data-id="i4x://MITProfessionalX/6.BD_2X/html/ab4eb70eba8d4e4cb8ada2097f71cf63"> <div class="xblock xblock-student_view xblock-student_view-html xmodule_display xmodule_HtmlModule" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-block-type="html" data-request-token="efe0229006df11e584381286d0864b53" data-runtime-version="1" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_html;_ab4eb70eba8d4e4cb8ada2097f71cf63" data-type="HTMLModule" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "HTMLModule"} </script> <p><img alt="MIT Professional Education Online X Program" src="/c4x/MITProfessionalX/6.BD_2X/asset/MITPE-OnlineX-Programs-Logo.jpg" /></p> </div> </div> <lt;div class="vert vert-1" data-id="i4x://MITProfessionalX/6.BD_2X/video/80c536584521435097895144c2fa1452"> <div class="xblock xblock-student_view xblock-student_view-video xmodule_display xmodule_VideoModule" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-block-type="video" data-request-token="efe0229006df11e584381286d0864b53" data-runtime-version="1" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_80c536584521435097895144c2fa1452" data-type="Video" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "Video"} </script> <h2>Video 3.1.5</h2> <div id="video_i4x-MITProfessionalX-6_BD_2X-video-80c536584521435097895144c2fa1452" class="video closed" data-streams="" data-sub="MITBIGDAT313-G0304A2_100" data-sources='["https://d2f1egay8yehza.cloudfront.net/mit-bigdata/MITBIGDAT313-G0304A2_100.mp4" ;, "https://d2f1egay8yehza.cloudfront.net/mit-bigdata/MITBIGDAT313-G0304A2_100.webm"]' ; data-save-state-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_80c536584521435097895144c2fa1452/handler/xmodule_handler/save_user_state" data-caption-data-dir="None" data-show-captions="true" data-general-speed="1.0" data-speed="null" data-saved-video-position="575.0" data-start="0.0" data-end="0.0" data-transcript-language="en" data-transcript-languages='{"en": "English"}' data-autoplay="False" data-yt-test-timeout="1500" data-yt-api-url="www.youtube.com/iframe_api" ; data-yt-test-url="gdata.youtube.com/feeds/api/videos/" ; data-transcript-translation-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_80c536584521435097895144c2fa1452/handler/transcript/translation" data-transcript-available-translations-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_80c536584521435097895144c2fa1452/handler/transcript/available_translations" data-autohide-html5="False" tabindex="-1" > <div class="focus_grabber first"></div> <div class="tc-wrapper"> <a href="#before-transcript_i4x-MITProfessionalX-6_BD_2X-video-80c536584521435097895144c2fa1452" class="nav-skip sr">Skip to a navigable version of this video's transcript.</a> <article class="video-wrapper"> <span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span> <span tabindex="-1" class="btn-play is-hidden" aria-hidden="true" aria-label="Play video"></span> <div class="video-player-pre"></div> <section class="video-player"> <div id="i4x-MITProfessionalX-6_BD_2X-video-80c536584521435097895144c2fa1452"></div> <h3 class="hidden">No playable video sources found.</h3> </section> <div class="video-player-post"></div> <section class="video-controls is-hidden"> <div class="slider" title="Video position"></div> <div> <ul class="vcr"> <li><a class="video_control" href="#" title="Play" role="button" aria-disabled="false"></a></li> <li><div class="vidtime">0:00 / 0:00</div></li> </ul> <div class="secondary-controls"> <div class="speeds menu-container"> <a class="speed-button" href="#" title="Speeds" role="button" aria-disabled="false"> <span class="label">Speed</span> <span class="value"></span> </a> <ol class="video-speeds menu" role="menu"></ol> </div> <div class="volume"> <a href="#" role="button" aria-disabled="false" title="Volume" aria-label="Click on this button to mute or unmute this video or press UP or DOWN buttons to increase or decrease volume level."></a> <div role="presentation" class="volume-slider-container"> <div class="volume-slider"></div> </div> </div> <a href="#" class="add-fullscreen" title="Fill browser" role="button" aria-disabled="false">Fill browser</a> <a href="#" class="quality-control is-hidden" title="HD off" role="button" aria-disabled="false">HD off</a> <div class="lang menu-container"> <a href="#" class="hide-subtitles" title="Turn off captions" role="button" aria-disabled="false">Turn off captions</a> </div> </div> </div> </section> <a class="nav-skip sr" id="before-transcript_i4x-MITProfessionalX-6_BD_2X-video-80c536584521435097895144c2fa1452" href="#after-transcript_i4x-MITProfessionalX-6_BD_2X-video-80c536584521435097895144c2fa1452">Skip to end of transcript.</a> </article> <ol id="transcript-captions" class="subtitles" tabindex="0" role="group" aria-label="Activating an item in this group will spool the video to the corresponding time point. To skip transcript, go to previous item."> <li></li> </ol> </div> <a class="nav-skip sr" id="after-transcript_i4x-MITProfessionalX-6_BD_2X-video-80c536584521435097895144c2fa1452" href="#before-transcript_i4x-MITProfessionalX-6_BD_2X-video-80c536584521435097895144c2fa1452">Go back to start of transcript.</a> <div class="focus_grabber last"></div> <ul class="wrapper-downloads"> <li class="video-tracks video-download-button"> <a href="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_80c536584521435097895144c2fa1452/handler/transcript/download">Download transcript</a> <div class="a11y-menu-container"> <a class="a11y-menu-button" href="#" title=".srt">.srt</a> <ol class="a11y-menu-list"> <li class="a11y-menu-item active"> <a class="a11y-menu-item-link" href="#srt" title="SubRip (.srt) file" data-value="srt"> SubRip (.srt) file </a> </li> <li class="a11y-menu-item"> <a class="a11y-menu-item-link" href="#txt" title="Text (.txt) file" data-value="txt"> Text (.txt) file </a> </li> </ol> </div> </li> </ul> </div> </div> </div> </div> </div>
<div class="xblock xblock-student_view xblock-student_view-vertical" data-request-token="efe0229006df11e584381286d0864b53" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_vertical;_cd18f90aafbd44068af5fe6416379210" data-block-type="vertical" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <div class="vert-mod"> <div class="vert vert-0" data-id="i4x://MITProfessionalX/6.BD_2X/html/27109bfc80444b74844c5f97e6384c0e"> <div class="xblock xblock-student_view xblock-student_view-html xmodule_display xmodule_HtmlModule" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-block-type="html" data-request-token="efe0229006df11e584381286d0864b53" data-runtime-version="1" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_html;_27109bfc80444b74844c5f97e6384c0e" data-type="HTMLModule" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "HTMLModule"} </script> <p><img alt="MIT Professional Education Online X Program" src="/c4x/MITProfessionalX/6.BD_2X/asset/MITPE-OnlineX-Programs-Logo.jpg" /></p> </div> </div> <div class="vert vert-1" data-id="i4x://MITProfessionalX/6.BD_2X/video/34c6e13e9ebb46468b629f75ad7a9b8d"> <div class="xblock xblock-student_view xblock-student_view-video xmodule_display xmodule_VideoModule" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-block-type="video" data-request-token="efe0229006df11e584381286d0864b53" data-runtime-version="1" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_34c6e13e9ebb46468b629f75ad7a9b8d" data-type="Video" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "Video"} </script> <h2>Video 3.1.6</h2> <div id="video_i4x-MITProfessionalX-6_BD_2X-video-34c6e13e9ebb46468b629f75ad7a9b8d" class="video closed" data-streams="" data-sub="MITBIGDAT313-G0304B0_100" data-sources='["https://d2f1egay8yehza.cloudfront.net/mit-bigdata/MITBIGDAT313-G0304B0_100.mp4" ;, "https://d2f1egay8yehza.cloudfront.net/mit-bigdata/MITBIGDAT313-G0304B0_100.webm"]' ; data-save-state-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_34c6e13e9ebb46468b629f75ad7a9b8d/handler/xmodule_handler/save_user_state" data-caption-data-dir="None" data-show-captions="true" data-general-speed="1.0" data-speed="null" data-saved-video-position="353.0" data-start="0.0" data-end="0.0" data-transcript-language="en" data-transcript-languages='{"en": "English"}' data-autoplay="False" data-yt-test-timeout="1500" data-yt-api-url="www.youtube.com/iframe_api" ; data-yt-test-url="gdata.youtube.com/feeds/api/videos/" ; data-transcript-translation-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_34c6e13e9ebb46468b629f75ad7a9b8d/handler/transcript/translation" data-transcript-available-translations-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_34c6e13e9ebb46468b629f75ad7a9b8d/handler/transcript/available_translations" data-autohide-html5="False" tabindex="-1" > <div class="focus_grabber first"></div> <div class="tc-wrapper"> <a href="#before-transcript_i4x-MITProfessionalX-6_BD_2X-video-34c6e13e9ebb46468b629f75ad7a9b8d" class="nav-skip sr">Skip to a navigable version of this video's transcript.</a> <article class="video-wrapper"> <span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span> <span tabindex="-1" class="btn-play is-hidden" aria-hidden="true" aria-label="Play video"></span> <div class="video-player-pre"></div> <section class="video-player"> <div id="i4x-MITProfessionalX-6_BD_2X-video-34c6e13e9ebb46468b629f75ad7a9b8d"></div> <h3 class="hidden">No playable video sources found.</h3> </section> <div class="video-player-post"></div> <section class="video-controls is-hidden"> <div class="slider" title="Video position"></div> <div> <ul class="vcr"> <li><a class="video_control" href="#" title="Play" role="button" aria-disabled="false"></a></li> <li><div class="vidtime">0:00 / 0:00</div></li> </ul> <div class="secondary-controls"> <div class="speeds menu-container"> <a class="speed-button" href="#" title="Speeds" role="button" aria-disabled="false"> <span class="label">Speed</span> <span class="value"></span> </a> <ol class="video-speeds menu" role="menu"></ol> </div> <div class="volume"> <a href="#" role="button" aria-disabled="false" title="Volume" aria-label="Click on this button to mute or unmute this video or press UP or DOWN buttons to increase or decrease volume level."></a> <div role="presentation" class="volume-slider-container"> <div class="volume-slider"></div> </div> </div> <a href="#" class="add-fullscreen" title="Fill browser" role="button" aria-disabled="false">Fill browser</a> <a href="#" class="quality-control is-hidden" title="HD off" role="button" aria-disabled="false">HD off</a> <div class="lang menu-container"> <a href="#" class="hide-subtitles" title="Turn off captions" role="button" aria-disabled="false">Turn off captions</a> </div> </div> </div> </section> <a class="nav-skip sr" id="before-transcript_i4x-MITProfessionalX-6_BD_2X-video-34c6e13e9ebb46468b629f75ad7a9b8d" href="#after-transcript_i4x-MITProfessionalX-6_BD_2X-video-34c6e13e9ebb46468b629f75ad7a9b8d">Skip to end of transcript.</a> </article> <ol id="transcript-captions" class="subtitles" tabindex="0" role="group" aria-label="Activating an item in this group will spool the video to the corresponding time point. To skip transcript, go to previous item."> <li></li> </ol> </div> <a class="nav-skip sr" id="after-transcript_i4x-MITProfessionalX-6_BD_2X-video-34c6e13e9ebb46468b629f75ad7a9b8d" href="#before-transcript_i4x-MITProfessionalX-6_BD_2X-video-34c6e13e9ebb46468b629f75ad7a9b8d">Go back to start of transcript.</a> <div class="focus_grabber last"></div> <ul class="wrapper-downloads"> <li class="video-tracks video-download-button"> <a href="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_34c6e13e9ebb46468b629f75ad7a9b8d/handler/transcript/download">Download transcript</a> <div class="a11y-menu-container"> <a class="a11y-menu-button" href="#" title=".srt">.srt</a> <ol class="a11y-menu-list"> <li class="a11y-menu-item active"> <a class="a11y-menu-item-link" href="#srt" title="SubRip (.srt) file" data-value="srt"> SubRip (.srt) file </a> </li> <li class="a11y-menu-item"> <a class="a11y-menu-item-link" href="#txt" title="Text (.txt) file" data-value="txt"> Text (.txt) file </a> </li> </ol> </div> </li> </ul> </div> </div> </div> </div> </div>
<div class="xblock xblock-student_view xblock-student_view-vertical" data-request-token="efe0229006df11e584381286d0864b53" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_vertical;_e31b374c44ae48a3b2bfd31d6d3bfa8d" data-block-type="vertical" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <div class="vert-mod"> <div class="vert vert-0" data-id="i4x://MITProfessionalX/6.BD_2X/html/f7d21b0e0e4b442e81ae09ac195f6946"> <div class="xblock xblock-student_view xblock-student_view-html xmodule_display xmodule_HtmlModule" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-block-type="html" data-request-token="efe0229006df11e584381286d0864b53" data-runtime-version="1" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_html;_f7d21b0e0e4b442e81ae09ac195f6946" data-type="HTMLModule" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "HTMLModule"} </script> <p><img alt="MIT Professional Education Online X Program" src="/c4x/MITProfessionalX/6.BD_2X/asset/MITPE-OnlineX-Programs-Logo.jpg" /></p> </div> </div> <div class="vert vert-1" data-id="i4x://MITProfessionalX/6.BD_2X/video/51ec827cfe254e9fa5ab30346812e916"> <div class="xblock xblock-student_view xblock-student_view-video xmodule_display xmodule_VideoModule" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-block-type="video" data-request-token="efe0229006df11e584381286d0864b53" data-runtime-version="1" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_51ec827cfe254e9fa5ab30346812e916" data-type="Video" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "Video"} </script> <h2>Video 3.1.7</h2> <div id="video_i4x-MITProfessionalX-6_BD_2X-video-51ec827cfe254e9fa5ab30346812e916" class="video closed" data-streams="" data-sub="MITBIGDAT313-G0304C0_100" data-sources='["https://d2f1egay8yehza.cloudfront.net/mit-bigdata/MITBIGDAT313-G0304C0_100.mp4" ;, "https://d2f1egay8yehza.cloudfront.net/mit-bigdata/MITBIGDAT313-G0304C0_100.webm"]' ; data-save-state-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_51ec827cfe254e9fa5ab30346812e916/handler/xmodule_handler/save_user_state" data-caption-data-dir="None" data-show-captions="true" data-general-speed="1.0" data-speed="null" data-saved-video-position="189.0" data-start="0.0" data-end="0.0" data-transcript-language="en" data-transcript-languages='{"en": "English"}' data-autoplay="False" data-yt-test-timeout="1500" data-yt-api-url="www.youtube.com/iframe_api" ; data-yt-test-url="gdata.youtube.com/feeds/api/videos/" ; data-transcript-translation-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_51ec827cfe254e9fa5ab30346812e916/handler/transcript/translation" data-transcript-available-translations-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_51ec827cfe254e9fa5ab30346812e916/handler/transcript/available_translations" data-autohide-html5="False" tabindex="-1" > <div class="focus_grabber first"></div> <div class="tc-wrapper"> <a href="#before-transcript_i4x-MITProfessionalX-6_BD_2X-video-51ec827cfe254e9fa5ab30346812e916" class="nav-skip sr">Skip to a navigable version of this video's transcript.</a> <article class="video-wrapper"> <span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span> <span tabindex="-1" class="btn-play is-hidden" aria-hidden="true" aria-label="Play video"></span> <div class="video-player-pre"></div> <section class="video-player"> <div id="i4x-MITProfessionalX-6_BD_2X-video-51ec827cfe254e9fa5ab30346812e916"></div> <h3 class="hidden">No playable video sources found.</h3> </section> <div class="video-player-post"></div> <section class="video-controls is-hidden"> <div class="slider" title="Video position"></div> <div> <ul class="vcr"> <li><a class="video_control" href="#" title="Play" role="button" aria-disabled="false"></a></li> <li><div class="vidtime">0:00 / 0:00</div></li> </ul> <div class="secondary-controls"> <div class="speeds menu-container"> <a class="speed-button" href="#" title="Speeds" role="button" aria-disabled="false"> <span class="label">Speed</span> <span class="value"></span> </a> <ol class="video-speeds menu" role="menu"></ol> </div> <div class="volume"> <a href="#" role="button" aria-disabled="false" title="Volume" aria-label="Click on this button to mute or unmute this video or press UP or DOWN buttons to increase or decrease volume level."></a> <div role="presentation" class="volume-slider-container"> <div class="volume-slider"></div> </div> </div> <a href="#" class="add-fullscreen" title="Fill browser" role="button" aria-disabled="false">Fill browser</a> <a href="#" class="quality-control is-hidden" title="HD off" role="button" aria-disabled="false">HD off</a> <div class="lang menu-container"> <a href="#" class="hide-subtitles" title="Turn off captions" role="button" aria-disabled="false">Turn off captions</a> </div> </div> </div> </section> <a class="nav-skip sr" id="before-transcript_i4x-MITProfessionalX-6_BD_2X-video-51ec827cfe254e9fa5ab30346812e916" href="#after-transcript_i4x-MITProfessionalX-6_BD_2X-video-51ec827cfe254e9fa5ab30346812e916">Skip to end of transcript.</a> </article> <ol id="transcript-captions" class="subtitles" tabindex="0" role="group" aria-label="Activating an item in this group will spool the video to the corresponding time point. To skip transcript, go to previous item."> <li></li> </ol> </div> <a class="nav-skip sr" id="after-transcript_i4x-MITProfessionalX-6_BD_2X-video-51ec827cfe254e9fa5ab30346812e916" href="#before-transcript_i4x-MITProfessionalX-6_BD_2X-video-51ec827cfe254e9fa5ab30346812e916">Go back to start of transcript.</a> <div class="focus_grabber last"></div> <ul class="wrapper-downloads"> <li class="video-tracks video-download-button"> <a href="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_51ec827cfe254e9fa5ab30346812e916/handler/transcript/download">Download transcript</a> <div class="a11y-menu-container"> <a class="a11y-menu-button" href="#" title=".srt">.srt</a> <ol class="a11y-menu-list"> <li class="a11y-menu-item active"> <a class="a11y-menu-item-link" href="#srt" title="SubRip (.srt) file" data-value="srt"> SubRip (.srt) file </a> </li> <li class="a11y-menu-item"> <a class="a11y-menu-item-link" href="#txt" title="Text (.txt) file" data-value="txt"> Text (.txt) file </a> </li> </ol> </div> </li> </ul> </div> </div> </div> </div> </div>
<div class="xblock xblock-student_view xblock-student_view-vertical" data-request-token="efe0229006df11e584381286d0864b53" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_vertical;_8fd28b6b37bb4147bfe2185724f2224f" data-block-type="vertical" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <div class="vert-mod"> <div class="vert vert-0" data-id="i4x://MITProfessionalX/6.BD_2X/html/1e0f7b7ffa2244519366628608700141"> <div class="xblock xblock-student_view xblock-student_view-html xmodule_display xmodule_HtmlModule" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-block-type="html" data-request-token="efe0229006df11e584381286d0864b53" data-runtime-version="1" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_html;_1e0f7b7ffa2244519366628608700141" data-type="HTMLModule" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "HTMLModule"} </script> <p><img alt="MIT Professional Education Online X Program" src="/c4x/MITProfessionalX/6.BD_2X/asset/MITPE-OnlineX-Programs-Logo.jpg" /></p> </div> </div> <div class="vert vert-1" data-id="i4x://MITProfessionalX/6.BD_2X/video/1ceb3bf1a2a64b2bbf4d024d4d414419"> <div class="xblock xblock-student_view xblock-student_view-video xmodule_display xmodule_VideoModule" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-block-type="video" data-request-token="efe0229006df11e584381286d0864b53" data-runtime-version="1" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_1ceb3bf1a2a64b2bbf4d024d4d414419" data-type="Video" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "Video"} </script> <h2>Video 3.1.8</h2> <div id="video_i4x-MITProfessionalX-6_BD_2X-video-1ceb3bf1a2a64b2bbf4d024d4d414419" class="video closed" data-streams="" data-sub="MITBIGDAT313-G0305A0_100" data-sources='["https://d2f1egay8yehza.cloudfront.net/mit-bigdata/MITBIGDAT313-G0305A0_100.mp4" ;, "https://d2f1egay8yehza.cloudfront.net/mit-bigdata/MITBIGDAT313-G0305A0_100.webm"]' ; data-save-state-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_1ceb3bf1a2a64b2bbf4d024d4d414419/handler/xmodule_handler/save_user_state" data-caption-data-dir="None" data-show-captions="true" data-general-speed="1.0" data-speed="null" data-saved-video-position="377.0" data-start="0.0" data-end="0.0" data-transcript-language="en" data-transcript-languages='{"en": "English"}' data-autoplay="False" data-yt-test-timeout="1500" data-yt-api-url="www.youtube.com/iframe_api" ; data-yt-test-url="gdata.youtube.com/feeds/api/videos/" ; data-transcript-translation-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_1ceb3bf1a2a64b2bbf4d024d4d414419/handler/transcript/translation" data-transcript-available-translations-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_1ceb3bf1a2a64b2bbf4d024d4d414419/handler/transcript/available_translations" data-autohide-html5="False" tabindex="-1" > <div class="focus_grabber first"></div> <div class="tc-wrapper"> <a href="#before-transcript_i4x-MITProfessionalX-6_BD_2X-video-1ceb3bf1a2a64b2bbf4d024d4d414419" class="nav-skip sr">Skip to a navigable version of this video's transcript.</a> <article class="video-wrapper"> <span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span> <span tabindex="-1" class="btn-play is-hidden" aria-hidden="true" aria-label="Play video"></span> <div class="video-player-pre"></div> <section class="video-player"> <div id="i4x-MITProfessionalX-6_BD_2X-video-1ceb3bf1a2a64b2bbf4d024d4d414419"></div> <h3 class="hidden">No playable video sources found.</h3> </section> <div class="video-player-post"></div> <section class="video-controls is-hidden"> <div class="slider" title="Video position"></div> <div> <ul class="vcr"> <li><a class="video_control" href="#" title="Play" role="button" aria-disabled="false"></a></li> <li><div class="vidtime">0:00 / 0:00</div></li> </ul> <div class="secondary-controls"> <div class="speeds menu-container"> <a class="speed-button" href="#" title="Speeds" role="button" aria-disabled="false"> <span class="label">Speed</span> <span class="value"></span> </a> <ol class="video-speeds menu" role="menu"></ol> </div> <div class="volume"> <a href="#" role="button" aria-disabled="false" title="Volume" aria-label="Click on this button to mute or unmute this video or press UP or DOWN buttons to increase or decrease volume level."></a> <div role="presentation" class="volume-slider-container"> <div class="volume-slider"></div> </div> </div> <a href="#" class="add-fullscreen" title="Fill browser" role="button" aria-disabled="false">Fill browser</a> <a href="#" class="quality-control is-hidden" title="HD off" role="button" aria-disabled="false">HD off</a> <div class="lang menu-container"> <a href="#" class="hide-subtitles" title="Turn off captions" role="button" aria-disabled="false">Turn off captions</a> </div> </div> </div> </section> <a class="nav-skip sr" id="before-transcript_i4x-MITProfessionalX-6_BD_2X-video-1ceb3bf1a2a64b2bbf4d024d4d414419" href="#after-transcript_i4x-MITProfessionalX-6_BD_2X-video-1ceb3bf1a2a64b2bbf4d024d4d414419">Skip to end of transcript.</a> </article> <ol id="transcript-captions" class="subtitles" tabindex="0" role="group" aria-label="Activating an item in this group will spool the video to the corresponding time point. To skip transcript, go to previous item."> <li></li> </ol> </div> <a class="nav-skip sr" id="after-transcript_i4x-MITProfessionalX-6_BD_2X-video-1ceb3bf1a2a64b2bbf4d024d4d414419" href="#before-transcript_i4x-MITProfessionalX-6_BD_2X-video-1ceb3bf1a2a64b2bbf4d024d4d414419">Go back to start of transcript.</a> <div class="focus_grabber last"></div> <ul class="wrapper-downloads"> <li class="video-tracks video-download-button"> <a href="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_1ceb3bf1a2a64b2bbf4d024d4d414419/handler/transcript/download">Download transcript</a> <div class="a11y-menu-container"> <a class="a11y-menu-button" href="#" title=".srt">.srt</a> <ol class="a11y-menu-list"> <li class="a11y-menu-item active"> <a class="a11y-menu-item-link" href="#srt" title="SubRip (.srt) file" data-value="srt"> SubRip (.srt) file </a> </li> <li class="a11y-menu-item"> <a class="a11y-menu-item-link" href="#txt" title="Text (.txt) file" data-value="txt"> Text (.txt) file </a> </li> </ol> </div> </li> </ul> </div> </div> </div> </div> </div>
<div class="xblock xblock-student_view xblock-student_view-vertical" data-request-token="efe0229006df11e584381286d0864b53" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_vertical;_266eb242730d40258ddf96bfba3ec33c" data-block-type="vertical" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <div class="vert-mod"> <div class="vert vert-0" data-id="i4x://MITProfessionalX/6.BD_2X/html/83a31d8441ef47abafc13b10e0c5ff3f"> <div class="xblock xblock-student_view xblock-student_view-html xmodule_display xmodule_HtmlModule" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-block-type="html" data-request-token="efe0229006df11e584381286d0864b53" data-runtime-version="1" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_html;_83a31d8441ef47abafc13b10e0c5ff3f" data-type="HTMLModule" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "HTMLModule"} </script> <p><img alt="MIT Professional Education Online X Program" src="/c4x/MITProfessionalX/6.BD_2X/asset/MITPE-OnlineX-Programs-Logo.jpg" /></p> </div> </div> <div class="vert vert-1" data-id="i4x://MITProfessionalX/6.BD_2X/video/930814d34f394069a01473c04502d590"> <div class="xblock xblock-student_view xblock-student_view-video xmodule_display xmodule_VideoModule" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-block-type="video" data-request-token="efe0229006df11e584381286d0864b53" data-runtime-version="1" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_930814d34f394069a01473c04502d590" data-type="Video" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "Video"} </script> <h2>Video 3.1.9</h2> <div id="video_i4x-MITProfessionalX-6_BD_2X-video-930814d34f394069a01473c04502d590" class="video closed" data-streams="" data-sub="MITBIGDAT313-G0305B0_100" data-sources='["https://d2f1egay8yehza.cloudfront.net/mit-bigdata/MITBIGDAT313-G0305B0_100.mp4" ;, "https://d2f1egay8yehza.cloudfront.net/mit-bigdata/MITBIGDAT313-G0305B0_100.webm"]' ; data-save-state-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_930814d34f394069a01473c04502d590/handler/xmodule_handler/save_user_state" data-caption-data-dir="None" data-show-captions="true" data-general-speed="1.0" data-speed="null" data-saved-video-position="248.0" data-start="0.0" data-end="0.0" data-transcript-language="en" data-transcript-languages='{"en": "English"}' data-autoplay="False" data-yt-test-timeout="1500" data-yt-api-url="www.youtube.com/iframe_api" ; data-yt-test-url="gdata.youtube.com/feeds/api/videos/" ; data-transcript-translation-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_930814d34f394069a01473c04502d590/handler/transcript/translation" data-transcript-available-translations-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_930814d34f394069a01473c04502d590/handler/transcript/available_translations" data-autohide-html5="False" tabindex="-1" > <div class="focus_grabber first"></div> <div class="tc-wrapper"> <a href="#before-transcript_i4x-MITProfessionalX-6_BD_2X-video-930814d34f394069a01473c04502d590" class="nav-skip sr">Skip to a navigable version of this video's transcript.</a> <article class="video-wrapper"> <span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span> <span tabindex="-1" class="btn-play is-hidden" aria-hidden="true" aria-label="Play video"></span> <div class="video-player-pre"></div> <section class="video-player"> <div id="i4x-MITProfessionalX-6_BD_2X-video-930814d34f394069a01473c04502d590"></div> <h3 class="hidden">No playable video sources found.</h3> </section> <div class="video-player-post"></div> <section class="video-controls is-hidden"> <div class="slider" title="Video position"></div> <div> <ul class="vcr"> <li><a class="video_control" href="#" title="Play" role="button" aria-disabled="false"></a></li> <li><div class="vidtime">0:00 / 0:00</div></li> </ul> <div class="secondary-controls"> <div class="speeds menu-container"> <a class="speed-button" href="#" title="Speeds" role="button" aria-disabled="false"> <span class="label">Speed</span> <span class="value"></span> </a> <ol class="video-speeds menu" role="menu"></ol> </div> <div class="volume"> <a href="#" role="button" aria-disabled="false" title="Volume" aria-label="Click on this button to mute or unmute this video or press UP or DOWN buttons to increase or decrease volume level."></a> <div role="presentation" class="volume-slider-container"> <div class="volume-slider"></div> </div> </div> <a href="#" class="add-fullscreen" title="Fill browser" role="button" aria-disabled="false">Fill browser</a> <a href="#" class="quality-control is-hidden" title="HD off" role="button" aria-disabled="false">HD off</a> <div class="lang menu-container"> <a href="#" class="hide-subtitles" title="Turn off captions" role="button" aria-disabled="false">Turn off captions</a> </div> </div> </div> </section> <a class="nav-skip sr" id="before-transcript_i4x-MITProfessionalX-6_BD_2X-video-930814d34f394069a01473c04502d590" href="#after-transcript_i4x-MITProfessionalX-6_BD_2X-video-930814d34f394069a01473c04502d590">Skip to end of transcript.</a> </article> <ol id="transcript-captions" class="subtitles" tabindex="0" role="group" aria-label="Activating an item in this group will spool the video to the corresponding time point. To skip transcript, go to previous item."> <li></li> </ol> </div> <a class="nav-skip sr" id="after-transcript_i4x-MITProfessionalX-6_BD_2X-video-930814d34f394069a01473c04502d590" href="#before-transcript_i4x-MITProfessionalX-6_BD_2X-video-930814d34f394069a01473c04502d590">Go back to start of transcript.</a> <div class="focus_grabber last"></div> <ul class="wrapper-downloads"> <li class="video-tracks video-download-button"> <a href="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_930814d34f394069a01473c04502d590/handler/transcript/download">Download transcript</a> <div class="a11y-menu-container"> <a class="a11y-menu-button" href="#" title=".srt">.srt</a> <ol class="a11y-menu-list"> <li class="a11y-menu-item active"> <a class="a11y-menu-item-link" href="#srt" title="SubRip (.srt) file" data-value="srt"> SubRip (.srt) file </a> </li> <li class="a11y-menu-item"> <a class="a11y-menu-item-link" href="#txt" title="Text (.txt) file" data-value="txt"> Text (.txt) file </a> </li> </ol> </div> </li> </ul> </div> </div> </div> </div> </div>
<div class="xblock xblock-student_view xblock-student_view-vertical" data-request-token="efe0229006df11e584381286d0864b53" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_vertical;_4bc2ec0f1ba149458c30629f0edc318d" data-block-type="vertical" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <div class="vert-mod"> <div class="vert vert-0" data-id="i4x://MITProfessionalX/6.BD_2X/html/82db10611a3f49ad81e7ace4e9e02c42"> <div class="xblock xblock-student_view xblock-student_view-html xmodule_display xmodule_HtmlModule" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-block-type="html" data-request-token="efe0229006df11e584381286d0864b53" data-runtime-version="1" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_html;_82db10611a3f49ad81e7ace4e9e02c42" data-type="HTMLModule" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "HTMLModule"} </script> <p><img alt="MIT Professional Education Online X Program" src="/c4x/MITProfessionalX/6.BD_2X/asset/MITPE-OnlineX-Programs-Logo.jpg" /></p> </div> </div> <div class="vert vert-1" data-id="i4x://MITProfessionalX/6.BD_2X/video/8c7d1d72264046d096e3ce0e45ca0ca3"> <div class="xblock xblock-student_view xblock-student_view-video xmodule_display xmodule_VideoModule" data-runtime-class="LmsRuntime" data-init="XBlockToXModuleShim" data-block-type="video" data-request-token="efe0229006df11e584381286d0864b53" data-runtime-version="1" data-usage-id="i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_8c7d1d72264046d096e3ce0e45ca0ca3" data-type="Video" data-course-id="MITProfessionalX/6.BD_2X/3T2015"> <script type="json/xblock-args" class="xblock-json-init-args"> {"xmodule-type": "Video"} </script> <h2>Video 3.1.10</h2> <div id="video_i4x-MITProfessionalX-6_BD_2X-video-8c7d1d72264046d096e3ce0e45ca0ca3" class="video closed" data-streams="" data-sub="MITBIGDAT313-G0306A0_100" data-sources='["https://d2f1egay8yehza.cloudfront.net/mit-bigdata/MITBIGDAT313-G0306A0_100.mp4" ;, "https://d2f1egay8yehza.cloudfront.net/mit-bigdata/MITBIGDAT313-G0306A0_100.webm"]' ; data-save-state-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_8c7d1d72264046d096e3ce0e45ca0ca3/handler/xmodule_handler/save_user_state" data-caption-data-dir="None" data-show-captions="true" data-general-speed="1.0" data-speed="null" data-saved-video-position="252.0" data-start="0.0" data-end="0.0" data-transcript-language="en" data-transcript-languages='{"en": "English"}' data-autoplay="False" data-yt-test-timeout="1500" data-yt-api-url="www.youtube.com/iframe_api" ; data-yt-test-url="gdata.youtube.com/feeds/api/videos/" ; data-transcript-translation-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_8c7d1d72264046d096e3ce0e45ca0ca3/handler/transcript/translation" data-transcript-available-translations-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_8c7d1d72264046d096e3ce0e45ca0ca3/handler/transcript/available_translations" data-autohide-html5="False" tabindex="-1" > <div class="focus_grabber first"></div> <div class="tc-wrapper"> <a href="#before-transcript_i4x-MITProfessionalX-6_BD_2X-video-8c7d1d72264046d096e3ce0e45ca0ca3" class="nav-skip sr">Skip to a navigable version of this video's transcript.</a> <article class="video-wrapper"> <span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span> <span tabindex="-1" class="btn-play is-hidden" aria-hidden="true" aria-label="Play video"></span> <div class="video-player-pre"></div> <section class="video-player"> <div id="i4x-MITProfessionalX-6_BD_2X-video-8c7d1d72264046d096e3ce0e45ca0ca3"></div> <h3 class="hidden">No playable video sources found.</h3> </section> <div class="video-player-post"></div> <section class="video-controls is-hidden"> <div class="slider" title="Video position"></div> <div> <ul class="vcr"> <li><a class="video_control" href="#" title="Play" role="button" aria-disabled="false"></a></li> <li><div class="vidtime">0:00 / 0:00</div></li> </ul> <div class="secondary-controls"> <div class="speeds menu-container"> <a class="speed-button" href="#" title="Speeds" role="button" aria-disabled="false"> <span class="label">Speed</span> <span class="value"></span> </a> <ol class="video-speeds menu" role="menu"></ol> </div> <div class="volume"> <a href="#" role="button" aria-disabled="false" title="Volume" aria-label="Click on this button to mute or unmute this video or press UP or DOWN buttons to increase or decrease volume level."></a> <div role="presentation" class="volume-slider-container"> <div class="volume-slider"></div> </div> </div> <a href="#" class="add-fullscreen" title="Fill browser" role="button" aria-disabled="false">Fill browser</a> <a href="#" class="quality-control is-hidden" title="HD off" role="button" aria-disabled="false">HD off</a> <div class="lang menu-container"> <a href="#" class="hide-subtitles" title="Turn off captions" role="button" aria-disabled="false">Turn off captions</a> </div> </div> </div> </section> <a class="nav-skip sr" id="before-transcript_i4x-MITProfessionalX-6_BD_2X-video-8c7d1d72264046d096e3ce0e45ca0ca3" href="#after-transcript_i4x-MITProfessionalX-6_BD_2X-video-8c7d1d72264046d096e3ce0e45ca0ca3">Skip to end of transcript.</a> </article> <ol id="transcript-captions" class="subtitles" tabindex="0" role="group" aria-label="Activating an item in this group will spool the video to the corresponding time point. 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data-save-state-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_4bcf399652884418a6ed758aafb06367/handler/xmodule_handler/save_user_state" data-caption-data-dir="None" data-show-captions="true" data-general-speed="1.0" data-speed="null" data-saved-video-position="361.0" data-start="0.0" data-end="0.0" data-transcript-language="en" data-transcript-languages='{"en": "English"}' data-autoplay="False" data-yt-test-timeout="1500" data-yt-api-url="www.youtube.com/iframe_api" ; data-yt-test-url="gdata.youtube.com/feeds/api/videos/" ; data-transcript-translation-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_4bcf399652884418a6ed758aafb06367/handler/transcript/translation" data-transcript-available-translations-url="/courses/MITProfessionalX/6.BD_2X/3T2015/xblock/i4x:;_;_MITProfessionalX;_6.BD_2X;_video;_4bcf399652884418a6ed758aafb06367/handler/transcript/available_translations" data-autohide-html5="False" tabindex="-1" > <div class="focus_grabber first"></div> <div class="tc-wrapper"> <a href="#before-transcript_i4x-MITProfessionalX-6_BD_2X-video-4bcf399652884418a6ed758aafb06367" class="nav-skip sr">Skip to a navigable version of this video's transcript.</a> <article class="video-wrapper"> <span tabindex="0" class="spinner" aria-hidden="false" aria-label="Loading video player"></span> <span tabindex="-1" class="btn-play is-hidden" aria-hidden="true" aria-label="Play video"></span> <div class="video-player-pre"></div> <section class="video-player"> <div id="i4x-MITProfessionalX-6_BD_2X-video-4bcf399652884418a6ed758aafb06367"></div> <h3 class="hidden">No playable video sources found.</h3> </section> <div class="video-player-post"></div> <section class="video-controls is-hidden"> <div class="slider" title="Video position"></div> <div> <ul class="vcr"> <li><a class="video_control" href="#" title="Play" role="button" aria-disabled="false"></a></li> <li><div class="vidtime">0:00 / 0:00</div></li> </ul> <div class="secondary-controls"> <div class="speeds menu-container"> <a class="speed-button" href="#" title="Speeds" role="button" aria-disabled="false"> <span class="label">Speed</span> <span class="value"></span> </a> <ol class="video-speeds menu" role="menu"></ol> </div> <div class="volume"> <a href="#" role="button" aria-disabled="false" title="Volume" aria-label="Click on this button to mute or unmute this video or press UP or DOWN buttons to increase or decrease volume level."></a> <div role="presentation" class="volume-slider-container"> <div class="volume-slider"></div> </div> </div> <a href="#" class="add-fullscreen" title="Fill browser" role="button" aria-disabled="false">Fill browser</a> <a href="#" class="quality-control is-hidden" title="HD off" role="button" aria-disabled="false">HD off</a> <div class="lang menu-container"> <a href="#" class="hide-subtitles" title="Turn off captions" role="button" aria-disabled="false">Turn off captions</a> </div> </div> </div> </section> <a class="nav-skip sr" id="before-transcript_i4x-MITProfessionalX-6_BD_2X-video-4bcf399652884418a6ed758aafb06367" href="#after-transcript_i4x-MITProfessionalX-6_BD_2X-video-4bcf399652884418a6ed758aafb06367">Skip to end of transcript.</a> </article> <ol id="transcript-captions" class="subtitles" tabindex="0" role="group" aria-label="Activating an item in this group will spool the video to the corresponding time point. 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