Rankings, Raters and Latent Traits - Concept Notes
Routing Summary
Four concept notes (no raw source) filling topics not fully covered by the ingested papers. 4 notes.
- Need Elo/Glicko/TrueSkill as approximate filtering, random-walk skills? → Elo, Glicko and TrueSkill - Dynamic Skill Ratings (Concept Note)
- Need Hui-Walter, diagnostic tests without a gold standard, conditional dependence, Youden fix? → Hui-Walter and Latent Class Models for Diagnostic Tests (Concept Note)
- Need IRT norms, quadrature, “you are here” percentile placement? → Item Response Theory Norms and You Are Here Placement (Concept Note)
- Need IIA violations, nested logit, switching lift, choice maps? → Market Structure Analysis - IIA, Nested Logit and Choice Maps (Concept Note)
Concept Map
| Concept | Note | Type | Depends On | Key Result |
|---|---|---|---|---|
| Dynamic skill ratings | Elo, Glicko and TrueSkill - Dynamic Skill Ratings (Concept Note) | concept | Weng and Lin 2011 | Elo = fixed-gain filter |
| Hui-Walter latent class | Hui-Walter and Latent Class Models for Diagnostic Tests (Concept Note) | concept | Dawid-Skene | 2 tests x 2 populations is just identified |
| IRT placement | Item Response Theory Norms and You Are Here Placement (Concept Note) | concept | 2PL | expected percentile under age norm |
| Market structure | Market Structure Analysis - IIA, Nested Logit and Choice Maps (Concept Note) | concept | Elrod and Keane 1995 | diversion above IIA = structure |
Notes
- Elo, Glicko and TrueSkill - Dynamic Skill Ratings (Concept Note) — CONTAINS: state-space view, Elo as stochastic gradient, variance-tracking filters, EKF comparison code.
- Hui-Walter and Latent Class Models for Diagnostic Tests (Concept Note) — CONTAINS: design, parameter counting, conditional dependence, Youden fix.
- Item Response Theory Norms and You Are Here Placement (Concept Note) — CONTAINS: marginal likelihood, adaptive quadrature, plug-in norms, percentile placement.
- Market Structure Analysis - IIA, Nested Logit and Choice Maps (Concept Note) — CONTAINS: IIA, switching lift, nested logit, choice maps.
Sources
Concept notes, no raw source; see each note’s cited literature.