Each dot is a paper; dot size is total citation degree. Positions come from the citation graph's layout (papers that cite each other are pulled together), so position reflects citation structure.
Use Color by to recolor: the semantic topic (from the text-embedding clustering written onto the graph), the Leiden citation community, year, or citation count.
Hover any paper for its title, year and authors. Click a paper to draw its citation links and open the side panel. Toggle citation edges to see where the citation graph crosses the layout — on the embedding maps, long edges connect papers cited together but semantically distant.
Toggle Intra-topic citation islands to reveal where a topic's papers split into separate citing groups: within each topic, the citation links among its own papers are broken into connected components, and every multi-paper component beyond the largest is enlarged as an “island” so it stands out. When you colour by topic the islands are also recoloured (main body keeps the topic colour, islands get a bright palette, papers citing nothing within the topic are greyed); when you colour by community, year or citations that colouring is kept, so you can see e.g. which community each island belongs to. Several islands in one topic means papers that share a subject but form separate, non-citing literatures.
The Leiden/CPM citation communities were swept across several resolutions; use Community resolution to switch which one colours the map (a higher resolution splits papers into more, smaller communities). The Metrics tab shows how clustering quality (modularity, stability across reseeding, etc.) changes across that sweep, to help judge which resolution is most meaningful.