Comp4321 The Index May 14 2026

The anatomy of a top result.

query · user imdb herbi rate plot · doc № 273
title ×2.0 body match

Forward index · top stems on this page

user 10 imdb 10 herbi 9 rate 8 plot 7 movi 6 titl 5 quot 5 dvdvhscdall 5 detail 5 comment 5 ride 5 disnei 4 board 4

document length 603 body tokens  ·  max tf 10 (user)  ·  vocabulary 427 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 stems0.5052
  2. cosine(query, title) × 2.0 title boost ×2.0 applied1.6054
  3. weighted subtotal cosBody + 2.0 × cosTitle2.1105
  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 × pagerank2.1105

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. herbi wid 0596 · df 2 body tf 9 title tf 1 idf 7.229
  4. rate wid 1518 · df 151 body tf 8 title tf 0 idf 0.990
  5. plot wid 1110 · df 288 body tf 7 title tf 0 idf 0.059

Outlinks (1)