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cs.AI2026
T-RoPE: Time-Aware Rotary Position Embedding for Sequential Recommendation
Yang Liu, Noel Loo, Ali Khanafer +4
Large-scale recommenders increasingly adopt the sequential generative recipe behind large language models, bringing the Transformer into recommendation along with design choices ma…
cs.AI2026
Xetrieval: Explaining Dense Retrieval through Feature Elicitation
Zhixin Cai, Jun Bai, Yang Liu +7
Dense retrieval enables effective semantic matching, yet the semantic factors underlying its relevance scores remain opaque. Sparse autoencoders (SAEs) support feature-level explan…