Comp4321 The Index May 14 2026

The anatomy of a top result.

query · street search sesam live titl · doc № 197
title ×2.0 body match

Forward index · top stems on this page

user 10 imdb 10 chase 8 rate 8 movi 6 titl 6 plot 6 panic 6 new 5 quot 5 street 5 dvdvhscdall 5 detail 5 comment 5

document length 575 body tokens  ·  max tf 10 (user)  ·  vocabulary 389 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 stems0.0647
  2. cosine(query, title) × 2.0 title boost ×2.0 applied0.4134
  3. weighted subtotal cosBody + 2.0 × cosTitle0.4781
  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 × pagerank0.4781

Per-query-stem · how each term contributes

  1. street wid 0106 · df 24 body tf 5 title tf 1 idf 3.644
  2. search wid 0153 · df 147 body tf 0 title tf 0 idf 1.029
  3. sesam wid 0105 · df 2 body tf 0 title tf 0 idf 7.229
  4. live wid 0075 · df 61 body tf 0 title tf 0 idf 2.298
  5. titl wid 1103 · df 288 body tf 6 title tf 0 idf 0.059

Outlinks (1)