Comp4321 The Index May 14 2026

The anatomy of a top result.

query · user imdb film rate lost · doc № 076
title ×2.0 body match

Forward index · top stems on this page

user 10 imdb 10 film 8 rate 8 lost 6 persh 6 point 6 lesli 6 movi 5 titl 5 quot 5 plot 5 hotel 5 dvdvhscdall 5

document length 488 body tokens  ·  max tf 10 (user)  ·  vocabulary 322 distinct stems  ·  title 4 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 stems0.2075
  2. cosine(query, title) × 2.0 title boost ×2.0 applied0.6425
  3. weighted subtotal cosBody + 2.0 × cosTitle0.8499
  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 × pagerank0.8499

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. film wid 1258 · df 162 body tf 8 title tf 0 idf 0.889
  4. rate wid 1518 · df 151 body tf 8 title tf 0 idf 0.990
  5. lost wid 0199 · df 25 body tf 6 title tf 1 idf 3.585

Outlinks (1)