hyde

HyDE: Precise Zero-Shot Dense Retrieval without Relevance Labels (by texttron)

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hyde reviews and mentions

Posts with mentions or reviews of hyde. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-05-02.
  • Show HN: Hacker Search – A semantic search engine for Hacker News
    3 projects | news.ycombinator.com | 2 May 2024
    HyDE apparently means “Hypothetical Document Embeddings”, which seems to be a kind of generative query expansion/pre-processing

    https://arxiv.org/abs/2212.10496

    https://github.com/texttron/hyde

    From the abstract:

    Given a query, HyDE first zero-shot instructs an instruction-following language model (e.g. InstructGPT) to generate a hypothetical document. The document captures relevance patterns but is unreal and may contain false details. Then, an unsupervised contrastively learned encoder~(e.g. Contriever) encodes the document into an embedding vector. This vector identifies a neighborhood in the corpus embedding space, where similar real documents are retrieved based on vector similarity. This second step ground the generated document to the actual corpus, with the encoder's dense bottleneck filtering out the incorrect details.

  • Meet HyDE: An Effective Fully Zero-Shot Dense Retrieval Systems That Require No Relevance Supervision, Works Out-of-Box, And Generalize Across Tasks
    1 project | /r/machinelearningnews | 23 Jan 2023
    Quick Read: https://www.marktechpost.com/2023/01/23/meet-hyde-an-effective-fully-zero-shot-dense-retrieval-systems-that-require-no-relevance-supervision-works-out-of-box-and-generalize-across-tasks/ Paper: https://arxiv.org/pdf/2212.10496.pdf Github: https://github.com/texttron/hyde

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2
362
10.0
over 1 year ago

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