Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links
Paper Citation Record · LEDGER
Collaborative Representation for SPD Matrices with Application to Image-Set Classification
As of 22 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 2 inbound Pith citation observations for arXiv:2201.08962.
A citation records a reference. It does not transfer a finding from one paper to another.
Coverage vector
One-hop event checks from named stored sources.
Source: scholarly_work_events, retraction_status_cache, observed 2026-08-22T06:32:14.747728+00:00
Pith citing papers itemized under the disclosed page cap.
Source: paper_references, paper_reference_links, observed 2026-08-06T22:11:07.032628Z
A source-named dated measurement, never combined with another source.
Source: arxiv_reference, observed 2026-07-04T08:09:41.030602Z
Reference resolution
0 of 0 outbound references displayed
- verified exact0
- verified fuzzy0
- unresolved0
- parse uncertain0
- malformed identifier0
- metadata mismatch0
External citation measurements
No source-named external measurement is stored.
Outbound references
No outbound reference observations are available for this paper version.
Pith citing papers
Observation d2b864f9-a333-4e2b-8896-d09f7cd2d4bf · inbound
Doubly robust estimation of causal effects for random object outcomes with continuous treatments cites this paper.
Doubly robust estimation of causal effects for random object outcomes with continuous treatments Collaborative Representation for SPD Matrices with Application to Image-Set Classification
Reference 1
- Resolution
- unresolved
- no resolver link, observed 2026-08-06T22:11:07.032628Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.
Observation 8e3f5e47-2763-489f-8b9a-7ecd5ddbaffa · inbound
A Test for Treatment Heterogeneity under a Distributional Difference-in-Difference Framework cites this paper.
A Test for Treatment Heterogeneity under a Distributional Difference-in-Difference Framework Collaborative Representation for SPD Matrices with Application to Image-Set Classification
Reference 121
- Resolution
- verified exact
- arxiv_id, observed 2026-07-04T08:09:41.032081Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-22T06:32:14.747728+00:00.