Preprint
Sep 2026
DUPAR: Dual-Path Conversational Retrieval via Speech Retriever with Cross-Turn Evidence Caching
Voice assistants grounded in external knowledge typically use automatic speech recognition (ASR) to transcribe speech queries before retrieving evidence from textual knowledge bases. This cascade adds latency and propagates recognition errors, whereas direct speech retrieval is vulnerable to cross-modal misalignment. T...
Yuan-Jun Li, Yi-Wen Liu, Da-Peng Li et al.
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