Comp4321 The Index May 14 2026

The anatomy of a top result.

query · movi airplan user imdb first · doc № 133
body match

Forward index · top stems on this page

cube 14 hypercub 14 movi 10 user 10 imdb 10 rate 9 film 7 titl 6 plot 6 like 6 quot 5 on 5 still 5 dvdvhscdall 5

document length 650 body tokens  ·  max tf 14 (cube)  ·  vocabulary 426 distinct stems  ·  title 2 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 stems0.0029
  2. cosine(query, title) × 2.0 no title overlap (×2.0 unused)0.0000
  3. weighted subtotal cosBody + 2.0 × cosTitle0.0029
  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 × pagerank0.0029

Per-query-stem · how each term contributes

  1. movi wid 0012 · df 290 body tf 10 title tf 0 idf 0.049
  2. airplan wid 0462 · df 3 body tf 0 title tf 0 idf 6.644
  3. user wid 1045 · df 289 body tf 10 title tf 0 idf 0.054
  4. imdb wid 1084 · df 288 body tf 10 title tf 0 idf 0.059
  5. first wid 0315 · df 159 body tf 4 title tf 0 idf 0.916

Outlinks (1)