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Stop Chunking Like It's 2022 — Yuval Belfer, AI21 Labs

Yuval Belfer from AI21 Labs shows there is no universal correct size for splitting text when indexing data for AI search.

One example: a question about Jerry's favorite church in Seinfeld transcripts is found best with small text chunks, while a question about his nemesis requires larger context. His solution is to index the same data six times at different sizes, search all of them simultaneously, and then rank the retrieved documents together instead of choosing one fixed size. The method costs two to five times more memory but delivers 20 to 40 percent better search results.

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