| | --- |
| | dataset_info: |
| | - config_name: go-v1-hard-negatives-100k |
| | features: |
| | - name: query |
| | dtype: string |
| | - name: pos |
| | dtype: string |
| | - name: negs |
| | list: string |
| | splits: |
| | - name: train |
| | num_bytes: 364025569 |
| | num_examples: 99663 |
| | download_size: 163830524 |
| | dataset_size: 364025569 |
| | - config_name: go-v1-pair-2M |
| | features: |
| | - name: query |
| | dtype: string |
| | - name: pos |
| | dtype: string |
| | splits: |
| | - name: train |
| | num_bytes: 1066841599 |
| | num_examples: 1992985 |
| | download_size: 438588731 |
| | dataset_size: 1066841599 |
| | - config_name: java-v1-hard-negatives-100k |
| | features: |
| | - name: query |
| | dtype: string |
| | - name: pos |
| | dtype: string |
| | - name: negs |
| | list: string |
| | splits: |
| | - name: train |
| | num_bytes: 359305298 |
| | num_examples: 87504 |
| | download_size: 130012787 |
| | dataset_size: 359305298 |
| | - config_name: java-v1-pair-2M |
| | features: |
| | - name: query |
| | dtype: string |
| | - name: pos |
| | dtype: string |
| | splits: |
| | - name: train |
| | num_bytes: 1331514393 |
| | num_examples: 1752593 |
| | download_size: 480145623 |
| | dataset_size: 1331514393 |
| | - config_name: javascript-v1-hard-negatives-100k |
| | features: |
| | - name: query |
| | dtype: string |
| | - name: pos |
| | dtype: string |
| | - name: negs |
| | list: string |
| | splits: |
| | - name: train |
| | num_bytes: 505829400 |
| | num_examples: 98025 |
| | download_size: 212768692 |
| | dataset_size: 505829400 |
| | - config_name: javascript-v1-pair-2M |
| | features: |
| | - name: query |
| | dtype: string |
| | - name: pos |
| | dtype: string |
| | splits: |
| | - name: train |
| | num_bytes: 1625855840 |
| | num_examples: 1960276 |
| | download_size: 704045988 |
| | dataset_size: 1625855840 |
| | - config_name: php-v1-hard-negatives-100k |
| | features: |
| | - name: query |
| | dtype: string |
| | - name: pos |
| | dtype: string |
| | - name: negs |
| | list: string |
| | splits: |
| | - name: train |
| | num_bytes: 409600818 |
| | num_examples: 85460 |
| | download_size: 163986468 |
| | dataset_size: 409600818 |
| | - config_name: php-v1-pair-2M |
| | features: |
| | - name: query |
| | dtype: string |
| | - name: pos |
| | dtype: string |
| | splits: |
| | - name: train |
| | num_bytes: 1379318420 |
| | num_examples: 1710537 |
| | download_size: 522306657 |
| | dataset_size: 1379318420 |
| | - config_name: python-v1-hard-negatives-100k |
| | features: |
| | - name: query |
| | dtype: string |
| | - name: pos |
| | dtype: string |
| | - name: negs |
| | list: string |
| | splits: |
| | - name: train |
| | num_bytes: 426330409 |
| | num_examples: 99535 |
| | download_size: 184706464 |
| | dataset_size: 426330409 |
| | - config_name: python-v1-pair-2M |
| | features: |
| | - name: query |
| | dtype: string |
| | - name: pos |
| | dtype: string |
| | splits: |
| | - name: train |
| | num_bytes: 1460994357 |
| | num_examples: 1990051 |
| | download_size: 644195658 |
| | dataset_size: 1460994357 |
| | - config_name: ruby-v1-hard-negatives-100k |
| | features: |
| | - name: query |
| | dtype: string |
| | - name: pos |
| | dtype: string |
| | - name: negs |
| | list: string |
| | splits: |
| | - name: train |
| | num_bytes: 180626329 |
| | num_examples: 79040 |
| | download_size: 83095960 |
| | dataset_size: 180626329 |
| | - config_name: ruby-v1-pair-2M |
| | features: |
| | - name: query |
| | dtype: string |
| | - name: pos |
| | dtype: string |
| | splits: |
| | - name: train |
| | num_bytes: 713529581 |
| | num_examples: 1583047 |
| | download_size: 304652631 |
| | dataset_size: 713529581 |
| | configs: |
| | - config_name: go-v1-hard-negatives-100k |
| | data_files: |
| | - split: train |
| | path: go-v1-hard-negatives-100k/train-* |
| | - config_name: go-v1-pair-2M |
| | data_files: |
| | - split: train |
| | path: go-v1-pair-2M/train-* |
| | - config_name: java-v1-hard-negatives-100k |
| | data_files: |
| | - split: train |
| | path: java-v1-hard-negatives-100k/train-* |
| | - config_name: java-v1-pair-2M |
| | data_files: |
| | - split: train |
| | path: java-v1-pair-2M/train-* |
| | - config_name: javascript-v1-hard-negatives-100k |
| | data_files: |
| | - split: train |
| | path: javascript-v1-hard-negatives-100k/train-* |
| | - config_name: javascript-v1-pair-2M |
| | data_files: |
| | - split: train |
| | path: javascript-v1-pair-2M/train-* |
| | - config_name: php-v1-hard-negatives-100k |
| | data_files: |
| | - split: train |
| | path: php-v1-hard-negatives-100k/train-* |
| | - config_name: php-v1-pair-2M |
| | data_files: |
| | - split: train |
| | path: php-v1-pair-2M/train-* |
| | - config_name: python-v1-hard-negatives-100k |
| | data_files: |
| | - split: train |
| | path: python-v1-hard-negatives-100k/train-* |
| | - config_name: python-v1-pair-2M |
| | data_files: |
| | - split: train |
| | path: python-v1-pair-2M/train-* |
| | - config_name: ruby-v1-hard-negatives-100k |
| | data_files: |
| | - split: train |
| | path: ruby-v1-hard-negatives-100k/train-* |
| | - config_name: ruby-v1-pair-2M |
| | data_files: |
| | - split: train |
| | path: ruby-v1-pair-2M/train-* |
| | license: apache-2.0 |
| | --- |
| | |
| | # cornstack-samples |
| |
|
| | Filtered CoRNStack sample subsets for code retrieval training. |
| |
|
| | Source dataset and paper: |
| | - CoRNStack collection: https://huggingface.co/collections/nomic-ai/cornstack |
| | - CoRNStack paper: https://huggingface.co/papers/2412.01007 |
| |
|
| | ## What This Release Contains |
| |
|
| | This release keeps the original subset layout (6 languages x pair + hard-negatives) and applies a deterministic rule-based noise filter. |
| |
|
| | Important: |
| | - Counts are post-filter counts, so they are slightly smaller than the nominal 2M / 100k targets. |
| | - Data is published in normalized IR format. |
| |
|
| | ## Config Layout And Schema |
| |
|
| | Each language is published as two configs with split `train`: |
| | - `{lang}-v1-pair-2M` |
| | - `{lang}-v1-hard-negatives-100k` |
| |
|
| | Schema: |
| | - Pair configs: `query`, `pos` |
| | - Hard-negative configs: `query`, `pos`, `negs` (list[string]) |
| |
|
| | ## Subsets And Row Counts (Post-filter) |
| |
|
| | | Subset (config name) | split | num_examples | |
| | | --- | --- | ---: | |
| | | `go-v1-pair-2M` | `train` | 1,992,985 | |
| | | `go-v1-hard-negatives-100k` | `train` | 99,663 | |
| | | `java-v1-pair-2M` | `train` | 1,752,593 | |
| | | `java-v1-hard-negatives-100k` | `train` | 87,504 | |
| | | `javascript-v1-pair-2M` | `train` | 1,960,276 | |
| | | `javascript-v1-hard-negatives-100k` | `train` | 98,025 | |
| | | `php-v1-pair-2M` | `train` | 1,710,537 | |
| | | `php-v1-hard-negatives-100k` | `train` | 85,460 | |
| | | `python-v1-pair-2M` | `train` | 1,990,051 | |
| | | `python-v1-hard-negatives-100k` | `train` | 99,535 | |
| | | `ruby-v1-pair-2M` | `train` | 1,583,047 | |
| | | `ruby-v1-hard-negatives-100k` | `train` | 79,040 | |
| | |
| | ## Quick Usage |
| | |
| | ```python |
| | from datasets import load_dataset |
| |
|
| | pair_ds = load_dataset("hotchpotch/cornstack-samples", "python-v1-pair-2M", split="train") |
| | hard_ds = load_dataset("hotchpotch/cornstack-samples", "python-v1-hard-negatives-100k", split="train") |
| |
|
| | print(pair_ds.column_names, len(pair_ds)) |
| | print(hard_ds.column_names, len(hard_ds)) |
| | ``` |
| | |
| | ## License |
| | |
| | This dataset follows CoRNStack and is released under **Apache-2.0**. |
| | |
| | ## Citation And Attribution |
| | |
| | If you use this dataset, please cite and attribute CoRNStack: |
| | - Paper: https://huggingface.co/papers/2412.01007 |
| | - Collection: https://huggingface.co/collections/nomic-ai/cornstack |
| | |
| | ## Noise Filtering Algorithm (Rule-based) |
| | |
| | The following deterministic rules are applied before publishing this release. |
| | |
| | 1. Prefix-based noisy query removal |
| | A row is dropped if `query` starts with any of the following prefixes: |
| | - `TODO` |
| | - `GET /` |
| | - `POST /` |
| | - `PUT /` |
| | - `DELETE /` |
| | - `Display a listing of the resource.` |
| | - `Store a newly created resource in storage.` |
| | - `Show the form for editing the specified resource.` |
| | - `Update the specified resource in storage.` |
| | - `Show the form for creating a new resource.` |
| | - `Remove the specified resource from storage.` |
| | - `Display the specified resource.` |
| | - `Transform the resource into an array.` |
| | - `Autogenerated method stub` |
| | - `Auto generated` |
| | - `this down() migration is autogenerated` |
| | - `this up() migration is autogenerated` |
| | - `"/ renamed from:"` |
| | - `"/ access modifiers changed from:"` |
| | |
| | 2. Minimum positive-document length |
| | A row is dropped if the positive side is shorter than 30 characters. |
| | - Pair task: `document` length >= 30 required |
| | - Hard-negatives task: `positive` length >= 30 required |
| | |
| | 3. Hard-negative validity constraint |
| | For hard-negative configs, at least one valid negative must remain after normalization (`min_negs = 1`). |
| | |
| | This filtering is purely rule-based (no model scoring), targeting high-noise templates and low-information positives while preserving broad retrieval coverage. |
| | |
