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[deleted] t1_iy6ze2s wrote

Reply to comment by koolaidman123 in [D] Difference between sparse and dense information retrieval by itsyourboiirow

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koolaidman123 t1_iy89kz0 wrote

Colbert v2 is literally listed in the beir sparse leaderboards...

Sparse refers to the embedding vector(s), not the model

And ranking/reranking refers to the same thing, but its still distinct from retrieval, which was my point

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DinosParkour t1_iy8ei4w wrote

ColBERT is both on the dense and the sparse leaderboard :^)

I would describe it as a (sparse?) collection of dense embeddings per query/document, so it's hard to classify it between the two (although I'm leaning more toward the dense categorization).

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koolaidman123 t1_iy8hbxd wrote

splade-v2 and sparta are exclusively on the sparse leaderboards, and they uses bert

the point is dispelling the notion that sparse retrieval somehow = no dl involved. it's conflating dense retrieval with neural retrieval

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