Co-authorship neighborhood
Yu Cheng's displayed neighborhood
5 of 5 direct collaborators shown.
Scroll the diagram horizontally to inspect every displayed node.
Ordered author table
Scroll the table horizontally to see every column.
| Display order | Author | Role | Distinct papers | Unique collaborators | Weighted degree | Active span |
|---|---|---|---|---|---|---|
| 1 | Yu Cheng | Focal | 1 | 5 | 5.0 | 2026 |
| 2 | Gao Liankui | Direct collaborator | 1 | 5 | 5.0 | 2026 |
| 3 | Li Fangyu | Direct collaborator | 1 | 5 | 5.0 | 2026 |
| 4 | Liu Ziyang | Direct collaborator | 1 | 5 | 5.0 | 2026 |
| 5 | Wu Tianfei | Direct collaborator | 1 | 5 | 5.0 | 2026 |
| 6 | Zhang Xuhai | Direct collaborator | 1 | 5 | 5.0 | 2026 |
Displayed collaboration table
Scroll the table horizontally to see every column.
| Author pair | Shared papers | Full weight | Fractional weight |
|---|---|---|---|
| Zhang Xuhai — Li Fangyu | 1 | 1 | 0.2 |
| Zhang Xuhai — Gao Liankui | 1 | 1 | 0.2 |
| Zhang Xuhai — Wu Tianfei | 1 | 1 | 0.2 |
| Zhang Xuhai — Yu Cheng | 1 | 1 | 0.2 |
| Zhang Xuhai — Liu Ziyang | 1 | 1 | 0.2 |
| Li Fangyu — Gao Liankui | 1 | 1 | 0.2 |
| Li Fangyu — Wu Tianfei | 1 | 1 | 0.2 |
| Li Fangyu — Yu Cheng | 1 | 1 | 0.2 |
| Li Fangyu — Liu Ziyang | 1 | 1 | 0.2 |
| Gao Liankui — Wu Tianfei | 1 | 1 | 0.2 |
| Gao Liankui — Yu Cheng | 1 | 1 | 0.2 |
| Gao Liankui — Liu Ziyang | 1 | 1 | 0.2 |
| Wu Tianfei — Yu Cheng | 1 | 1 | 0.2 |
| Wu Tianfei — Liu Ziyang | 1 | 1 | 0.2 |
| Yu Cheng — Liu Ziyang | 1 | 1 | 0.2 |
Graph construction and limits
Each distinct paper contributes an undirected pair for every two eligible identities in its deduplicated latest OpenAlex author list. Self-loops are removed. Solo papers count toward an author's paper total but create no edge. The selected display is an ego subgraph. Paper, collaborator, weighted-degree, and active-span metrics for every displayed node use the full filtered provider view; component size describes the focal author's component.
Immutable provider payloads are stored once. A separate receipt log records a later delivery of an earlier payload, so roster reversions remain visible. Exact duplicate receipts are idempotent. Equal timestamps use receipt insertion order as the tie-breaker.
Co-authorship records shared paper attribution only. It does not establish contribution size, research quality, influence, friendship, topic similarity, or citation relationships.