Comp4321 The Index May 14 2026

The anatomy of a top result.

query · hkust admission · doc № 000
body match high pagerank

Forward index · top stems on this page

test 2 page 2 new 2 crawler 1 get 1 admiss 1 cse 1 depart 1 hkust 1 read 1 intern 1 book 1 movi 1 list 1

document length 17 body tokens  ·  max tf 2 (test)  ·  vocabulary 14 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 · 2 resolved stems0.4470
  2. cosine(query, title) × 2.0 no title overlap (×2.0 unused)0.0000
  3. weighted subtotal cosBody + 2.0 × cosTitle0.4470
  4. × phrase multiplier stems not within 5-token window · ×1.0×1.0
  5. × pagerank multiplier 1 + 0.5 × normalized PR (0.010)×1.0050
  6. final score weighted × phrase × pagerank0.4492

Per-query-stem · how each term contributes

  1. hkust wid 0007 · df 4 body tf 1 title tf 0 idf 6.229
  2. admiss wid 0004 · df 3 body tf 1 title tf 0 idf 6.644

Outlinks (4)