Comp4321 The Index May 14 2026

The anatomy of a top result.

query · user imdb rate big plot · doc № 065
body match

Forward index · top stems on this page

user 10 imdb 10 rate 10 movi 7 plot 6 marri 6 titl 5 dvdvhscdall 5 detail 5 comment 5 board 4 quot 4 trailer 4 bad 4

document length 477 body tokens  ·  max tf 10 (user)  ·  vocabulary 337 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 stems0.0363
  2. cosine(query, title) × 2.0 no title overlap (×2.0 unused)0.0000
  3. weighted subtotal cosBody + 2.0 × cosTitle0.0363
  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 × pagerank0.0363

Per-query-stem · how each term contributes

  1. user wid 1045 · df 289 body tf 10 title tf 0 idf 0.054
  2. imdb wid 1084 · df 288 body tf 10 title tf 0 idf 0.059
  3. rate wid 1518 · df 151 body tf 10 title tf 0 idf 0.990
  4. big wid 0594 · df 37 body tf 0 title tf 0 idf 3.019
  5. plot wid 1110 · df 288 body tf 6 title tf 0 idf 0.059

Outlinks (1)