Each responding feed receives a recency-weighted topic score capped at 3 points so prolific feeds cannot dominate. The index combines capped activity (65%), active-feed breadth (25%) and active-folder breadth (10%). A single-folder view uses 70% activity and 30% feed breadth.
- Activity
- 0.0
- Feed breadth
- 0.0
- Folder breadth
- 0.0
Topic weights: military and cyber 1.0; intelligence, nuclear and regional security 0.9; sanctions and energy 0.6; politics 0.4. Recency: 0–12h 1.0; 12–24h 0.8; 24–48h 0.5; 48–72h 0.25.
Collection confidence combines response success (70%), valid timestamps (15%) and recognized topic labels (15%). It measures data completeness—not source truthfulness. Counts are an observed sample after API limits and title deduplication.