Release 0.15.5

[khoroshevskyi]

Changes:

• Added combined sparse and dense search, which improves search results

TODO:

• Update the version of pephub in the __version__.py file
• Update the changelog

[cloudflare-workers-and-pages]

Deploying pephub-ui with    Cloudflare Pages

Latest commit:	8436347
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[Copilot]

Pull request overview

This PR adds hybrid search functionality combining dense, sparse, and exact match retrieval methods to improve search quality in PEPHub. The implementation uses Qdrant's reciprocal rank fusion (RRF) to blend results from multiple search strategies.

Key changes:

• Added sparse search capability using SPLADE encoder alongside existing dense embeddings
• Implemented hybrid query strategy with prefetch and fusion for improved search relevance
• Removed configurable collection_name parameter, now hardcoded to default

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 8 comments.

Show a summary per file

File	Description
pephub/routers/models.py	Removed collection_name field from SearchQuery model
pephub/routers/api/v1/search.py	Implemented hybrid search with dense, sparse, and exact match retrieval using RRF fusion
pephub/dependencies.py	Added sparse encoder model initialization and dependency injection function
pephub/const.py	Updated model constants, replacing DEFAULT_HF_MODEL with separate dense and sparse encoder models
pephub/_version.py	Bumped version from 0.15.4 to 0.15.5

Comments suppressed due to low confidence (3)

pephub/routers/api/v1/search.py:48

• The parameter name "model_sparce" contains a spelling error. It should be "model_sparse" (with an 's' instead of 'c').

    return agent.namespace.get(limit=limit, query=query or "", offset=offset)

pephub/routers/api/v1/search.py:68

• The variable "model_sparce" contains a spelling error. It should be "model_sparse" (with an 's' instead of 'c').
  pephub/routers/api/v1/search.py:69
• The variable "model_sparce" contains a spelling error. It should be "model_sparse" (with an 's' instead of 'c').

    # get namespaces:

---

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