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cs.IR2026
A Systematic Study of Semantic ID Spaces for Generative Information Retrieval
Alexia Allal, Hicham Randrianarivo, Sylvain Lamprier
Generative Information Retrieval (GIR) has emerged as a transformative paradigm, shifting document retrieval from a traditional "retrieve-and-rank" workflow to sequence-to-sequence…
cs.IR2026
Disentangling Paradigm, Identifier, and Decoding in Generative Retrieval
Hicham Randrianarivo, Logan Renaud, Alexia Allal
Generative retrieval trains a language model to generate the identifier of a relevant document. Recent work replaces the autoregressive decoder with diffusion, but changes identifi…