作者位次 #2/7SIGIR 2026Poster· Information Retrieval (Short)
Better than Dense? Investigating the Natural Backward Compatibility of Learned Sparse Representations
Jingfen Qiao · Gabrielle Poerwawinata · Thong Nguyen · Jia-Huei Ju · Eugene Yang · Evangelos Kanoulas · Andrew Yates
摘要
Advancements in retrieval models necessitate re-indexing, a computationally expensive process for large-scale production environments. While updating only the query encoder and continuing to use the old index could be a promising middle ground, dense retrieval systems suffer severe performance dr...