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UID:pretalx-haystack-us-2026-WW3HWZ@pretalx.com
DTSTART;TZID=EST:20260507T160000
DTEND;TZID=EST:20260507T164500
DESCRIPTION:In distributed search\, BM25 returns different results across n
 odes because IDF and average document length vary with each node's corpus 
 state. StableTfl replaces these with a term-length rarity heuristic\, elim
 inating all corpus dependency. On 22 BEIR datasets\, it retains ~90% of BM
 25's NDCG@10 while guaranteeing identical rankings across nodes.
DTSTAMP:20260502T113317Z
LOCATION:Main Stage
SUMMARY:When BM25 Scores Disagree: A Corpus-Independent Alternative - Tianx
 iao Wei
URL:https://pretalx.com/haystack-us-2026/talk/WW3HWZ/
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