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NewsLens analytics surface backed by the FastAPI contract.

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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

CurrentSnapshot

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

Analysis Mode

Pooled (topic-confounded)Within-topicWithin-tag

Topic slice

generalworld

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
Articles320
Sources11
Lenses12
Classification accuracy20.9%
Baseline accuracy10.6%
Classification lift10.3%
Best q-value0.0519
FDR-significant lenses0 / 12
TopicStatusTierScoreArticlesSourcesLiftBest qFlagsReason
generalokhigh0.993001011.0%0.0519no_fdr_significant_lens_effects
worldunavailableunavailable0.002010.0%0.0000insufficient_source_count, source_differentiation_unavailable, source_lens_effects_unavailableSource differentiation and lens effects are both unavailable for this slice.

Within-Topic Source Differentiation: world

unavailable Need at least 2 sources with complete rows.

Scope status: unavailable | Reliability: unavailable (0.00) | Reliability flags: 3

Articles20
Sources1
Lenses12
Permutations20
LOOCV Accuracyn/a
Baseline Accuracyn/a
Multivariate Fn/a
Multivariate R²n/a
Between dfn/a
Within dfn/a
Multivariate p_permn/a
LOOCV Accuracyn/a
Baseline Accuracyn/a
Evaluatedn/a
Totaln/a
Classification p_permn/a

Topic Slice Overview

Selected topic is unavailable: Need at least 2 sources with complete rows.

TopicStatusArticlesSourcesF-statLOOCV Acc
generalok300105.75722.3%
worldunavailable201n/an/a

Tag Slice Overview

TagStatusArticlesSourcesF-statLOOCV Acc
generalok300105.75722.3%
worldunavailable201n/an/a