Comp4321 The Index May 14 2026

The anatomy of a top result.

query · information retrieval · doc № 249
body match

Forward index · top stems on this page

led 16 zeppelin 14 song 12 user 10 imdb 10 band 9 rate 9 remain 8 movi 7 film 7 plant 7 new 6 plot 6 titl 5

document length 787 body tokens  ·  max tf 16 (led)  ·  vocabulary 504 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 · 2 resolved stems0.0086
  2. cosine(query, title) × 2.0 no title overlap (×2.0 unused)0.0000
  3. weighted subtotal cosBody + 2.0 × cosTitle0.0086
  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 × pagerank0.0086

Per-query-stem · how each term contributes

  1. inform wid 0024 · df 27 body tf 1 title tf 0 idf 3.474
  2. retriev wid 0025 · df 7 body tf 0 title tf 0 idf 5.421

Outlinks (1)