Comp4321 The Index May 14 2026

The anatomy of a top result.

query · user imdb rate movi plot · doc № 189
body match

Forward index · top stems on this page

user 10 imdb 10 rate 9 movi 6 plot 6 photo 5 titl 5 quot 5 film 5 echt 5 kerl 5 dvdvhscdall 5 detail 5 comment 5

document length 497 body tokens  ·  max tf 10 (user)  ·  vocabulary 340 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 stems0.0818
  2. cosine(query, title) × 2.0 no title overlap (×2.0 unused)0.0000
  3. weighted subtotal cosBody + 2.0 × cosTitle0.0818
  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 × pagerank0.0818

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. rate wid 1518 · df 151 body tf 9 title tf 0 idf 0.990
  4. movi wid 0012 · df 290 body tf 6 title tf 0 idf 0.049
  5. plot wid 1110 · df 288 body tf 6 title tf 0 idf 0.059

Outlinks (1)