Comp4321 The Index May 14 2026

The anatomy of a top result.

query · last shot titl search match · doc № 175
title ×2.0 body match

Forward index · top stems on this page

danc 13 movi 11 user 10 imdb 10 last 8 rate 8 on 7 titl 6 plot 6 detail 6 comment 6 board 5 quot 5 dancer 5

document length 521 body tokens  ·  max tf 13 (danc)  ·  vocabulary 346 distinct stems  ·  title 3 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 stems0.0151
  2. cosine(query, title) × 2.0 title boost ×2.0 applied0.0913
  3. weighted subtotal cosBody + 2.0 × cosTitle0.1065
  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 × pagerank0.1065

Per-query-stem · how each term contributes

  1. last wid 0410 · df 162 body tf 8 title tf 1 idf 0.889
  2. shot wid 0443 · df 29 body tf 0 title tf 0 idf 3.371
  3. titl wid 1103 · df 288 body tf 6 title tf 0 idf 0.059
  4. search wid 0153 · df 147 body tf 0 title tf 0 idf 1.029
  5. match wid 1115 · df 140 body tf 0 title tf 0 idf 1.100

Outlinks (1)