Typed states for the displayed outbound observations.
Source: paper_references, paper_reference_links
Paper Citation Record · LEDGER
Principal Component Analysis with Noisy and/or Missing Data
As of 12 August 2026, this Paper Citation Record lists 0 of 0 outbound references and 2 inbound Pith citation observations for arXiv:1208.4122.
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 2026-08-12T06:34:41.77262+00:00
Pith citing papers itemized under the disclosed page cap.
Source: paper_references, paper_reference_links, observed 2026-08-01T00:41:21.589678Z
A source-named dated measurement, never combined with another source.
Source: pith, observed 2026-07-10T00:36:39.359823Z
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 8b9348ee-e086-436b-8d4b-3c62427c3b81 · inbound
Robust Heteroskedastic Matrix Factorization: A Generalization of PCA that Flags Outliers and Handles Missing Data cites this paper.
Robust Heteroskedastic Matrix Factorization: A Generalization of PCA that Flags Outliers and Handles Missing Data Principal Component Analysis with Noisy and/or Missing Data
Reference 6
- Resolution
- verified exact
- local_arxiv, observed 2026-07-10T00:36:39.361206Z
Source-reported events for the cited work
No event found in the named queried sources as of 2026-08-12T06:34:41.77262+00:00.
Observation 0a793b58-0b03-46ae-b074-303b4be6f158 · inbound
The Twentieth Data Release of the Sloan Digital Sky Survey: First All-Sky BOSS Spectra, eROSITA-SDSS-V Mapper Coordinated Observations, and a Preview of the Local Volume Mapper cites this paper.
The Twentieth Data Release of the Sloan Digital Sky Survey: First All-Sky BOSS Spectra, eROSITA-SDSS-V Mapper Coordinated Observations, and a Preview of the Local Volume Mapper Principal Component Analysis with Noisy and/or Missing Data
Reference 9
- Resolution
- unresolved
- no resolver link, observed 2026-08-01T00:41:21.589678Z
Source-reported events for the cited work
Unavailable: canonical work link unavailable.