Multi-aspect LLM query generation plus SPLADE and cross-encoder reranking improves conversational passage ranking on TREC iKAT 2024, with a rerank-time aggregation variant.
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IRLab@iKAT24: Learned Sparse Retrieval with Multi-aspect LLM Query Generation for Conversational Search
Multi-aspect LLM query generation plus SPLADE and cross-encoder reranking improves conversational passage ranking on TREC iKAT 2024, with a rerank-time aggregation variant.