News

NewsLens analytics surface backed by the FastAPI contract.

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

Snapshot mode requires a valid date (`YYYY-MM-DD`). Falling back to current data until provided.

Analysis Mode

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

Topic slice

general world

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 Score0.99

Topics OK1 / 2

Pooled Flags1

Articles	320
Sources	11
Lenses	12
Classification accuracy	20.9%
Baseline accuracy	10.6%
Classification lift	10.3%
Best q-value	0.0519
FDR-significant lenses	0 / 12

Topic	Status	Tier	Score	Articles	Sources	Lift	Best q	Flags	Reason
general	ok	high	0.99	300	10	11.0%	0.0519	no_fdr_significant_lens_effects
world	unavailable	unavailable	0.00	20	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.

Within-Topic Source Differentiation: general

Scope status: ok | Reliability: high (0.99) | Reliability flags: 1

Articles300

Sources10

Lenses12

Permutations20

LOOCV Accuracy22.3%

Baseline Accuracy11.3%

Multivariate F	5.7569
Multivariate R²	0.1516
Between df	9
Within df	290
Multivariate p_perm	0.0476
LOOCV Accuracy	22.3%
Baseline Accuracy	11.3%
Evaluated	300
Total	300
Classification p_perm	0.0476

Topic Slice Overview

Topic	Status	Articles	Sources	F-stat	LOOCV Acc
general	ok	300	10	5.757	22.3%
world	unavailable	20	1	n/a	n/a

Tag Slice Overview

Tag	Status	Articles	Sources	F-stat	LOOCV Acc
general	ok	300	10	5.757	22.3%
world	unavailable	20	1	n/a	n/a