two_trans
Experimental Validation
l Tested against
l ACM , ArXiv, IMDB
l Variations tested
l Step 1: single token, top-k tokens
l Step 2: conjunctive query only
l Step 3
o Page count, URL
o Virtual Document: 10 heuristics and 2 language
models
l Search Engines
l Google, MS Live Search
WIDM 2007
13