Co-authorship neighborhood
Yong Zhou's displayed neighborhood
6 of 6 direct collaborators shown.
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Ordered author table
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| Display order | Author | Role | Distinct papers | Unique collaborators | Weighted degree | Active span |
|---|---|---|---|---|---|---|
| 1 | Yong Zhou | Focal | 1 | 6 | 6.0 | 2026 |
| 2 | Anatolii Melnychuk | Direct collaborator | 1 | 6 | 6.0 | 2026 |
| 3 | Denys Babaiev | Direct collaborator | 1 | 6 | 6.0 | 2026 |
| 4 | Narek M. Kesoyan | Direct collaborator | 1 | 6 | 6.0 | 2026 |
| 5 | Oleksii Zakharkin | Direct collaborator | 1 | 6 | 6.0 | 2026 |
| 6 | Olena Astapova-Vyazmina | Direct collaborator | 1 | 6 | 6.0 | 2026 |
| 7 | Sergiy Spivakovskyy | Direct collaborator | 1 | 6 | 6.0 | 2026 |
Displayed collaboration table
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| Author pair | Shared papers | Full weight | Fractional weight |
|---|---|---|---|
| Sergiy Spivakovskyy — Olena Astapova-Vyazmina | 1 | 1 | 0.167 |
| Sergiy Spivakovskyy — Narek M. Kesoyan | 1 | 1 | 0.167 |
| Sergiy Spivakovskyy — Anatolii Melnychuk | 1 | 1 | 0.167 |
| Sergiy Spivakovskyy — Yong Zhou | 1 | 1 | 0.167 |
| Sergiy Spivakovskyy — Denys Babaiev | 1 | 1 | 0.167 |
| Sergiy Spivakovskyy — Oleksii Zakharkin | 1 | 1 | 0.167 |
| Olena Astapova-Vyazmina — Narek M. Kesoyan | 1 | 1 | 0.167 |
| Olena Astapova-Vyazmina — Anatolii Melnychuk | 1 | 1 | 0.167 |
| Olena Astapova-Vyazmina — Yong Zhou | 1 | 1 | 0.167 |
| Olena Astapova-Vyazmina — Denys Babaiev | 1 | 1 | 0.167 |
| Olena Astapova-Vyazmina — Oleksii Zakharkin | 1 | 1 | 0.167 |
| Narek M. Kesoyan — Anatolii Melnychuk | 1 | 1 | 0.167 |
| Narek M. Kesoyan — Yong Zhou | 1 | 1 | 0.167 |
| Narek M. Kesoyan — Denys Babaiev | 1 | 1 | 0.167 |
| Narek M. Kesoyan — Oleksii Zakharkin | 1 | 1 | 0.167 |
| Anatolii Melnychuk — Yong Zhou | 1 | 1 | 0.167 |
| Anatolii Melnychuk — Denys Babaiev | 1 | 1 | 0.167 |
| Anatolii Melnychuk — Oleksii Zakharkin | 1 | 1 | 0.167 |
| Yong Zhou — Denys Babaiev | 1 | 1 | 0.167 |
| Yong Zhou — Oleksii Zakharkin | 1 | 1 | 0.167 |
| Denys Babaiev — Oleksii Zakharkin | 1 | 1 | 0.167 |
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.