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# Annotation Schema Changelog

All notable changes to the annotation schema will be documented in this file.

The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [1.0.0] - 2025-10-26

### Added

#### Classification (31 categories)
- Communication: `email_draft`, `email_reply`
- Task Management: `todo_list`, `reminder`, `shopping_list`
- Content Creation:
  - Blog: `blog_outline`, `blog_draft`
  - Articles: `article_outline`, `article_draft`
  - Social Media: `social_media_post`, `social_media_thread`, `linkedin_post`, `twitter_thread`
  - Scripts: `script_draft`, `presentation_outline`
- Development:
  - Prompts: `prompt_general`, `prompt_development`, `prompt_creative`
  - Documentation: `readme_dictation`, `documentation`, `code_comment`
  - Engineering: `bug_report`, `feature_request`
- Personal & Professional:
  - Personal: `journal_entry`, `memo`, `idea`
  - Professional: `meeting_notes`, `research_notes`, `project_planning`
- General: `question`, `other`

#### Audio Defects (10 categories)
- `significant_background_noise` - High levels of ambient noise
- `background_music` - Music playing (copyright concern)
- `background_conversations` - Other people talking
- `crying_baby` - Baby crying audible
- `traffic_sounds` - Vehicle or traffic noise
- `poor_quality` - Low quality recording, distortion, clipping
- `multiple_speakers` - Multiple people speaking intentionally
- `wind_noise` - Wind interference on microphone
- `echo` - Noticeable echo or reverberation
- `phone_ringing` - Phone ringing or notification alerts

#### Content Issues (5 categories)
- `side_conversation` - Conversation not part of the note
- `partial_content` - Recording cut off or incomplete
- `false_start` - Recording started accidentally or restarted
- `thinking_aloud` - Stream of consciousness, unstructured
- `self_correction` - Speaker corrects themselves mid-recording

#### Languages (7 languages)
- `english` - English language content
- `hebrew` - Hebrew language content
- `arabic` - Arabic language content
- `russian` - Russian language content
- `french` - French language content
- `spanish` - Spanish language content
- `german` - German language content

#### Transcription Quality (5 levels)
- `excellent` - Near-perfect transcription
- `good` - Minor errors, generally accurate
- `fair` - Some errors but usable
- `poor` - Many errors, requires correction
- `unusable` - Transcription too inaccurate to be useful

#### Metadata
- `notes` - Free-form text annotations
- `schema_version` - Version tracking for annotations

### Schema Structure
- Multi-select support for: classification, audio_defects, content_issues, languages
- Single-select for: transcription_quality
- Free-text field for: notes
- Automatic schema version embedding in annotations

### Documentation
- Initial schema definition in JSON format
- Comprehensive description for each category
- Type specifications (multi-select, single-select, text)

## Future Versions

### Planned for 1.1.0
- Additional language support as needed
- Expanded audio defect categories based on real-world usage
- Performance metrics annotations (speaking rate, pause patterns)

### Under Consideration
- Emotion/Tone annotations
- Topic/Domain classifications
- Urgency/Priority levels
- Speaker characteristics annotations

---

## How to Update This File

When creating a new schema version:

1. Add a new section with version number and date
2. Use "Added", "Changed", "Deprecated", "Removed", "Fixed" subsections
3. List all changes with category IDs and descriptions
4. Update the schema file: `annotation_schema_v{N}.json`
5. Sync changes to Hugging Face dataset repository