| --- |
| license: apache-2.0 |
| language: |
| - en |
| tags: |
| - software-engineering |
| - conventional-commits |
| - nlp |
| pretty_name: CCSBENCH |
| size_categories: |
| - 10K<n<100K |
| --- |
| |
| # CCSBENCH: A Fine-Grained Benchmark for Conventional Commits |
|
|
| ## 1. Dataset Summary |
| CCSBENCH is a large-scale benchmark dataset specifically constructed for fine-grained **Conventional Commits (CCS)** classification research. Based on the CCS specification, it provides high-quality commit data with verified types and scopes across multiple programming languages. |
|
|
| The dataset contains **93,807** CCS-compliant commits extracted from 119 high-quality repositories. It spans a wide temporal range (April 2017 to February 2023) and includes **142 distinct commit types** and **6,633 unique scopes**. |
|
|
| ## 2. Dataset Structure |
|
|
| ### Data Splits |
| We employ a strict **temporal split** to simulate real-world scenarios, ensuring that repositories are tracked continuously over time. |
|
|
| | File | Count | Usage | |
| | :--- | :--- | :--- | |
| | `train.json` | 74,581 | Model training | |
| | `valid.json` | 9,939 | Hyperparameter tuning | |
| | `test.json` | 9,287 | Final performance evaluation | |
|
|
| ### Language Distribution (by Repository) |
| The benchmark covers 9 key programming languages: |
|
|
| | Language | Repositories | Language | Repositories | |
| | :--- | :--- | :--- | :--- | |
| | **TypeScript** | 61 | **Rust** | 2 | |
| | **JavaScript** | 34 | **Java** | 2 | |
| | **Go** | 11 | **C++** | 1 | |
| | **Python** | 4 | **Kotlin** | 1 | |
| | **C#** | 3 | | | |
|
|
| ## 3. Data Schema |
| Each record in the dataset is a JSON object representing a single commit. Below is a description of the key fields: |
|
|
| | Field | Type | Description | |
| | :--- | :--- | :--- | |
| | `hash` | string | Unique identifier for the commit. | |
| | `message` | string | The full original commit message. | |
| | `commit_type` | string | The extracted CCS type (e.g., `feat`, `fix`, `chore`). | |
| | `commit_scope` | string | The extracted CCS scope (can be `null` if not provided). | |
| | `is_CCS` | integer | Binary indicator (1) for CCS compliance. | |
| | `language` | string | Programming language of the repository. | |
| | `repo` | string | Full name of the source repository (Owner/Repo). | |
| | `mods` | array | List of modified files, including `diff`, `new_path`, and `old_path`. | |
| | `date` | string | Timestamp of the commit. | |
| | `license` | string | Original license of the source repository. | |
|
|
| ## 4. Construction Principles |
| The construction of CCSBENCH prioritizes **Scale, Quality, and Repository Continuity**: |
| 1. **Keyword Detection**: Identifying repositories explicitly adopting CCS ("conventionalcommits.org"). |
| 2. **Format Validation**: Using a robust parser to validate `<type>[optional scope]: <description>`. |
| 3. **Temporal Alignment**: Discarding all commits preceding the repository’s formal adoption of CCS to ensure data purity. |
|
|
| ## 5. Licensing |
| - **Dataset License**: **Apache-2.0** (compatible with the licenses of the original repositories in CommitChronicle). |
| - **Code License**: **MIT** (for processing scripts). |
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|
