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 Source Differentiation

Live FastAPI data

What this page does

Estimate how separable sources are in lens-score space, including within-topic and within-tag modes.

Data Mode

Current Snapshot

Scope

Analysis Mode

Switch between pooled, within-topic, and within-tag source comparisons without changing the underlying data mode.

Pooled (topic-confounded)Within-topic Within-tag

Reliability

Source Reliability Assessment

Heuristic readout for whether source-difference claims have enough support. This is not a quality score; it summarizes sample size, separability, FDR exposure, and controlled-slice availability.

Methodheuristic-v1

Pooled Labeltopic-confounded

Pooled Tierhigh

Pooled Score1.00

Event-Control Tiermoderate

Event-Control Score0.45

Topics OK1 / 2

Tags OK1 / 2

Pooled Flags0

Articles	729
Sources	11
Lenses	12
Classification accuracy	24.3%
Baseline accuracy	10.4%
Classification lift	13.9%
Best q-value	0.0476
FDR-significant lenses	12 / 12

Topic Slices

Topic Reliability

Per-topic support levels for within-topic source comparisons.

Topic	Status	Tier	Score	Articles	Sources	Lift	Best q	Flags	Reason
Untagged	ok	high	1.00	685	10	15.8%	0.0476	none
world	unavailable	unavailable	0.00	44	1	0.0%	0.0000	insufficient_source_count, source_differentiation_unavailable, source_lens_effects_unavailable	Source differentiation and lens effects are both unavailable for this slice.

Tag Slices

Tag Reliability

Per-tag support levels for within-tag source comparisons.

Tag	Status	Tier	Score	Articles	Sources	Lift	Best q	Flags	Reason
Unknown	unavailable	unavailable	n/a	0	0	0.0%	0.0000	none
Unknown	unavailable	unavailable	n/a	0	0	0.0%	0.0000	none

Source Comparison

Pooled Source Differentiation

Multivariate separation and held-out classification strength for the currently selected slice.

Label: topic-confounded

Scope status: ok | Reliability: high (1.00)

Articles729

Sources11

Lenses12

Permutations20

LOOCV Accuracy24.3%

Baseline Accuracy10.4%

Multivariate F	14.5044
Multivariate R²	0.1681
Between df	10
Within df	718
Multivariate p_perm	0.0476
LOOCV Accuracy	24.3%
Baseline Accuracy	10.4%
Evaluated	729
Total	729
Classification p_perm	0.0476

Reference Table

Topic Slice Overview

Quick scan of per-topic separability, coverage, and held-out source classification strength.

Topic	Status	Articles	Sources	F-stat	LOOCV Acc
Untagged	ok	685	10	14.857	26.9%
world	unavailable	44	1	n/a	n/a

Reference Table

Tag Slice Overview

Quick scan of per-tag separability, coverage, and held-out source classification strength.

Tag	Status	Articles	Sources	F-stat	LOOCV Acc
Unknown	unavailable	n/a	n/a	n/a	n/a
Unknown	unavailable	n/a	n/a	n/a	n/a