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Tablestore support normalize full text search bm25 score #15813

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opened 2026-02-21 19:23:28 -05:00 by yindo · 0 comments
yindo commented 2026-02-21 19:23:28 -05:00
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Originally created by @wanttobeamaster on GitHub (Jul 31, 2025).

Self Checks

  • I have read the Contributing Guide and Language Policy.
  • I have searched for existing issues search for existing issues, including closed ones.
  • I confirm that I am using English to submit this report, otherwise it will be closed.
  • Please do not modify this template :) and fill in all the required fields.

1. Is this request related to a challenge you're experiencing? Tell me about your story.

Currently, some customers using Tablestore do not receive scores during full-text search without reranking; in multi-knowledge base retrieval scenarios, documents may be filtered out.

Therefore, consider normalizing the BM25 algorithm to map the scores to [0,1].

Image Image

2. Additional context or comments

No response

3. Can you help us with this feature?

  • I am interested in contributing to this feature.
Originally created by @wanttobeamaster on GitHub (Jul 31, 2025). ### Self Checks - [x] I have read the [Contributing Guide](https://github.com/langgenius/dify/blob/main/CONTRIBUTING.md) and [Language Policy](https://github.com/langgenius/dify/issues/1542). - [x] I have searched for existing issues [search for existing issues](https://github.com/langgenius/dify/issues), including closed ones. - [x] I confirm that I am using English to submit this report, otherwise it will be closed. - [x] Please do not modify this template :) and fill in all the required fields. ### 1. Is this request related to a challenge you're experiencing? Tell me about your story. Currently, some customers using Tablestore do not receive scores during full-text search without reranking; in multi-knowledge base retrieval scenarios, documents may be filtered out. Therefore, consider normalizing the BM25 algorithm to map the scores to [0,1]. <img width="2604" height="982" alt="Image" src="https://github.com/user-attachments/assets/e30cef67-026b-4cc7-b8b8-d3d5e5a1af40" /> <img width="2606" height="878" alt="Image" src="https://github.com/user-attachments/assets/805bbadf-4fd0-4455-aa84-5e614ef85ec9" /> ### 2. Additional context or comments _No response_ ### 3. Can you help us with this feature? - [x] I am interested in contributing to this feature.
yindo added the 💪 enhancement label 2026-02-21 19:23:28 -05:00
yindo closed this issue 2026-02-21 19:23:28 -05:00
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Reference: langgenius/dify#15813
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