News Analytics
FastAPI-backed source, lens, workflow, and event diagnostics
The news surface reads from the backend contract and exposes exploratory comparisons, data quality checks, workflow health, and same-event analysis.
Index
Pages
All routes below stay inside the same shared analytics surface.
News Event Control
Live FastAPI data
What this page does
Audit same-story event matching and compare source behavior only where outlets cover matched events.
Data Mode
Snapshot mode requires a valid date (`YYYY-MM-DD`). Falling back to current data until provided.
Overview
Event-Control Status
Event control clusters articles by embedding similarity and publish-date proximity, then restricts source comparisons to matched same-story coverage.
ok
| Embedding model | text-embedding-3-small |
|---|---|
| Dimensions | 512 |
| Similarity threshold | 0.860 |
| Date window | 3 days |
| Cache | enabled; hits 172, misses 0, stored 0 |
Controls
Display Controls and Exports
Tune table scope and lens counts, then pull the matching backend JSON artifacts directly.
Event Coverage by Source
Use this before interpreting event-controlled effects. Low multi-source coverage means weak same-story comparison support.
No source coverage rows yet. Event matching may be unavailable or no multi-source clusters were found.
Source-Pair Event Overlap
No source-pair event overlap available.
Source Comparison
Same-Event Source Differentiation
Multivariate separation and held-out classification strength for the currently selected slice.
unavailable No multi-source event clusters with scored article rows are available.
Scope status: unavailable | Reliability: unavailable (0.00) | Reliability flags: 4
| Multivariate F | n/a |
|---|---|
| Multivariate R² | n/a |
| Between df | n/a |
| Within df | n/a |
| Multivariate p_perm | n/a |
| LOOCV Accuracy | n/a |
| Baseline Accuracy | n/a |
| Evaluated | n/a |
| Total | n/a |
| Classification p_perm | n/a |
Lens Effects
Same-Event Source Effects
Lens-level source differences ranked by effect size, with FDR-aware filtering and source mean context.
unavailable No multi-source event clusters with scored article rows are available.
Rows shown: 0 | q-threshold: 0.00 | Reliability: unavailable (0.00) | Reliability flags: 4
No data available.
Matched Event Clusters
No event clusters available.
Same-Event Pairwise Source Deltas
Positive delta means Source A scores higher than Source B on that lens within matched event coverage.
No pairwise source/lens deltas available.
Event vs Source Variance Decomposition
This separates story/event variance from remaining source variance after event-centering.
No variance decomposition rows available.