Fixed-size chunking trade-offs depend on answer locality and embedding model: 64-128 token chunks suit fact-based QA, 512-1024 token chunks suit long-context narrative QA.
DuReadervis: A Chinese dataset for open-domain document visual question answering
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Rethinking Chunk Size For Long-Document Retrieval: A Multi-Dataset Analysis
Fixed-size chunking trade-offs depend on answer locality and embedding model: 64-128 token chunks suit fact-based QA, 512-1024 token chunks suit long-context narrative QA.