Comp4321 The Index May 14 2026

The anatomy of a top result.

query · term relev system mathemat book · doc № 126
body match

Forward index · top stems on this page

advertis 13 user 10 imdb 10 plot 9 wimsei 9 peter 8 murder 8 must 8 rate 8 mr 7 movi 6 quot 6 lord 5 titl 5

document length 715 body tokens  ·  max tf 13 (advertis)  ·  vocabulary 467 distinct stems  ·  title 6 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 stems0.0080
  2. cosine(query, title) × 2.0 no title overlap (×2.0 unused)0.0000
  3. weighted subtotal cosBody + 2.0 × cosTitle0.0080
  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 × pagerank0.0080

Per-query-stem · how each term contributes

  1. term wid 1029 · df 289 body tf 1 title tf 0 idf 0.054
  2. relev wid 0033 · df 2 body tf 0 title tf 0 idf 7.229
  3. system wid 0698 · df 16 body tf 0 title tf 0 idf 4.229
  4. mathemat wid 1048 · df 1 body tf 0 title tf 0 idf 8.229
  5. book wid 0011 · df 19 body tf 1 title tf 0 idf 3.981

Outlinks (1)