Added semantic chunking for better document structure preservation
Pull Request Checklist
Note to first-time contributors: Please open a discussion post in Discussions and describe your changes before submitting a pull request.
Before submitting, make sure you've checked the following:
Target branch: Please verify that the pull request targets the dev branch.
Description: Provide a concise description of the changes made in this pull request.
Changelog: Ensure a changelog entry following the format of Keep a Changelog is added at the bottom of the PR description.
Documentation: Have you updated relevant documentation Open WebUI Docs, or other documentation sources?
Dependencies: Are there any new dependencies? Have you updated the dependency versions in the documentation?
Testing: Have you written and run sufficient tests to validate the changes?
Code review: Have you performed a self-review of your code, addressing any coding standard issues and ensuring adherence to the project's coding standards?
Prefix: To clearly categorize this pull request, prefix the pull request title using one of the following:
BREAKING CHANGE: Significant changes that may affect compatibility
build: Changes that affect the build system or external dependencies
ci: Changes to our continuous integration processes or workflows
chore: Refactor, cleanup, or other non-functional code changes
docs: Documentation update or addition
feat: Introduces a new feature or enhancement to the codebase
fix: Bug fix or error correction
i18n: Internationalization or localization changes
perf: Performance improvement
refactor: Code restructuring for better maintainability, readability, or scalability
style: Changes that do not affect the meaning of the code (white space, formatting, missing semi-colons, etc.)
test: Adding missing tests or correcting existing tests
WIP: Work in progress, a temporary label for incomplete or ongoing work
Changelog Entry
Description
refactor addressed a critical issue in Open WebUI's document processing pipeline where unwanted
characters, particularly escape sequences and formatting artifacts, were appearing in the vector database
storage. The problem was most pronounced with PPTX files but affected all document types processed
through the system
Added
[List any new features, functionalities, or additions]
Changed
[List any changes, updates, refactorings, or optimizations]
Deprecated
[List any deprecated functionality or features that have been removed]
Removed
[List any removed features, files, or functionalities]
Fixed
[List any fixes, corrections, or bug fixes]
Security
[List any new or updated security-related changes, including vulnerability fixes]
Breaking Changes
BREAKING CHANGE: [List any breaking changes affecting compatibility or functionality]
Additional Information
[Insert any additional context, notes, or explanations for the changes]
[Reference any related issues, commits, or other relevant information]
Screenshots or Videos
[Attach any relevant screenshots or videos demonstrating the changes]
Contributor License Agreement
By submitting this pull request, I confirm that I have read and fully agree to the Contributor License Agreement (CLA), and I am providing my contributions under its terms.
🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.
## 📋 Pull Request Information
**Original PR:** https://github.com/open-webui/open-webui/pull/14430
**Author:** [@PVBLIC-F](https://github.com/PVBLIC-F)
**Created:** 5/28/2025
**Status:** ❌ Closed
**Base:** `dev` ← **Head:** `feat/retrieval-text-cleaning`
---
### 📝 Commits (3)
- [`6168310`](https://github.com/open-webui/open-webui/commit/6168310ec7c82d1363b21dd1efa6ec9ed6edb796) Update retrieval.py
- [`3b9dc77`](https://github.com/open-webui/open-webui/commit/3b9dc7719ab7abe2340b5364b2e88a90de23053c) Update retrieval.py
- [`a26f238`](https://github.com/open-webui/open-webui/commit/a26f2380f603e21b939551f6130daf6e77665f61) Update retrieval.py
### 📊 Changes
**1 file changed** (+354 additions, -44 deletions)
<details>
<summary>View changed files</summary>
📝 `backend/open_webui/routers/retrieval.py` (+354 -44)
</details>
### 📄 Description
Added semantic chunking for better document structure preservation
# Pull Request Checklist
### Note to first-time contributors: Please open a discussion post in [Discussions](https://github.com/open-webui/open-webui/discussions) and describe your changes before submitting a pull request.
**Before submitting, make sure you've checked the following:**
- [ ] **Target branch:** Please verify that the pull request targets the `dev` branch.
- [ ] **Description:** Provide a concise description of the changes made in this pull request.
- [ ] **Changelog:** Ensure a changelog entry following the format of [Keep a Changelog](https://keepachangelog.com/) is added at the bottom of the PR description.
- [ ] **Documentation:** Have you updated relevant documentation [Open WebUI Docs](https://github.com/open-webui/docs), or other documentation sources?
- [ ] **Dependencies:** Are there any new dependencies? Have you updated the dependency versions in the documentation?
- [ ] **Testing:** Have you written and run sufficient tests to validate the changes?
- [ ] **Code review:** Have you performed a self-review of your code, addressing any coding standard issues and ensuring adherence to the project's coding standards?
- [ ] **Prefix:** To clearly categorize this pull request, prefix the pull request title using one of the following:
- **BREAKING CHANGE**: Significant changes that may affect compatibility
- **build**: Changes that affect the build system or external dependencies
- **ci**: Changes to our continuous integration processes or workflows
- **chore**: Refactor, cleanup, or other non-functional code changes
- **docs**: Documentation update or addition
- **feat**: Introduces a new feature or enhancement to the codebase
- **fix**: Bug fix or error correction
- **i18n**: Internationalization or localization changes
- **perf**: Performance improvement
- **refactor**: Code restructuring for better maintainability, readability, or scalability
- **style**: Changes that do not affect the meaning of the code (white space, formatting, missing semi-colons, etc.)
- **test**: Adding missing tests or correcting existing tests
- **WIP**: Work in progress, a temporary label for incomplete or ongoing work
# Changelog Entry
### Description
- refactor addressed a critical issue in Open WebUI's document processing pipeline where unwanted
characters, particularly escape sequences and formatting artifacts, were appearing in the vector database
storage. The problem was most pronounced with PPTX files but affected all document types processed
through the system
### Added
- [List any new features, functionalities, or additions]
### Changed
- [List any changes, updates, refactorings, or optimizations]
### Deprecated
- [List any deprecated functionality or features that have been removed]
### Removed
- [List any removed features, files, or functionalities]
### Fixed
- [List any fixes, corrections, or bug fixes]
### Security
- [List any new or updated security-related changes, including vulnerability fixes]
### Breaking Changes
- **BREAKING CHANGE**: [List any breaking changes affecting compatibility or functionality]
---
### Additional Information
- [Insert any additional context, notes, or explanations for the changes]
- [Reference any related issues, commits, or other relevant information]
### Screenshots or Videos
- [Attach any relevant screenshots or videos demonstrating the changes]
### Contributor License Agreement
By submitting this pull request, I confirm that I have read and fully agree to the [Contributor License Agreement (CLA)](/CONTRIBUTOR_LICENSE_AGREEMENT), and I am providing my contributions under its terms.
---
<sub>🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.</sub>
Blocking a user prevents them from interacting with repositories, such as opening or commenting on pull requests or issues. Learn more about blocking a user.
📋 Pull Request Information
Original PR: https://github.com/open-webui/open-webui/pull/14430
Author: @PVBLIC-F
Created: 5/28/2025
Status: ❌ Closed
Base:
dev← Head:feat/retrieval-text-cleaning📝 Commits (3)
6168310Update retrieval.py3b9dc77Update retrieval.pya26f238Update retrieval.py📊 Changes
1 file changed (+354 additions, -44 deletions)
View changed files
📝
backend/open_webui/routers/retrieval.py(+354 -44)📄 Description
Added semantic chunking for better document structure preservation
Pull Request Checklist
Note to first-time contributors: Please open a discussion post in Discussions and describe your changes before submitting a pull request.
Before submitting, make sure you've checked the following:
devbranch.Changelog Entry
Description
characters, particularly escape sequences and formatting artifacts, were appearing in the vector database
storage. The problem was most pronounced with PPTX files but affected all document types processed
through the system
Added
Changed
Deprecated
Removed
Fixed
Security
Breaking Changes
Additional Information
Screenshots or Videos
Contributor License Agreement
By submitting this pull request, I confirm that I have read and fully agree to the Contributor License Agreement (CLA), and I am providing my contributions under its terms.
🔄 This issue represents a GitHub Pull Request. It cannot be merged through Gitea due to API limitations.