Comp4321 The Index May 14 2026

The anatomy of a top result.

query · search titl histori channel present · doc № 121
body match

Forward index · top stems on this page

user 10 imdb 10 rate 9 movi 6 us 6 titl 6 plot 6 film 6 scandal 6 quot 5 profumo 5 dvdvhscdall 5 detail 5 comment 5

document length 665 body tokens  ·  max tf 10 (user)  ·  vocabulary 466 distinct stems  ·  title 1 stems

Score breakdown

Re-derived from the same tf·idf cosine values, boost factors, and PageRank multipliers the live ranker just used. weighted = body + title × 2.0 · final = weighted × phrase × pagerank.

  1. cosine(query, body) tf·idf body · 5 resolved stems0.0223
  2. cosine(query, title) × 2.0 no title overlap (×2.0 unused)0.0000
  3. weighted subtotal cosBody + 2.0 × cosTitle0.0223
  4. × phrase multiplier stems not within 5-token window · ×1.0×1.0
  5. × pagerank multiplier PageRank not computed for this page · ×1.0×1.0000
  6. final score weighted × phrase × pagerank0.0223

Per-query-stem · how each term contributes

  1. search wid 0153 · df 147 body tf 0 title tf 0 idf 1.029
  2. titl wid 1103 · df 288 body tf 6 title tf 0 idf 0.059
  3. histori wid 0431 · df 29 body tf 2 title tf 0 idf 3.371
  4. channel wid 0432 · df 7 body tf 0 title tf 0 idf 5.421
  5. present wid 0433 · df 20 body tf 0 title tf 0 idf 3.907

Outlinks (1)