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Terms of Use for The Stack

The Stack dataset is a collection of source code in over 300 programming languages. We ask that you read and acknowledge the following points before using the dataset:

  1. The Stack is a collection of source code from repositories with various licenses. Any use of all or part of the code gathered in The Stack must abide by the terms of the original licenses, including attribution clauses when relevant. We facilitate this by providing provenance information for each data point.
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Dataset Description

This dataset contains conversations from GitHub issues and Pull Requests. Each conversation is comprised of a series of events, such as opening an issue, creating a comment, or closing the issue, and includes the author's username, text, action, and identifiers such as the issue ID and number. The dataset, which is mostly in English, has a total size of 54GB and 30.9M files.

Dataset Structure

from datasets import load_dataset
dataset = load_dataset("bigcode/the-stack-github-issues")
dataset
Dataset({
    features: ['repo', 'issue_id', 'issue_number', 'pull_request', 'events', 'text_size', 'content', 'usernames'],
    num_rows: 30982955
})
  • content contains the full text in the conversation concatenated with special tokens: <issue_start> for the beginning of the issue, <issue_comment> before each comment and <issue_closed> if a conversation is closed. Each comment is prepended with username_{i}: before the text, username_{i} is the mask for author i. This column is intended for model training to avoid memorizing usernames, and understand the structure of the conversation.
  • events contains the detailed events on top of which we built content, it also includes information the username's author and mask used.

Below is an example:

{'content': '<issue_start><issue_comment>Title: Click Save: Sorry, Cannot Write\n
            'username_0: Hi all, Edit a file in Ice, click Save Icon\n Get error message: Sorry, cannot write /var/www/index.html 
             ...
             Edit: Also getting error: Cannot Zip Files up.\n
             <issue_comment>username_1: hi there  i have a similar problem. I cant save the files...',
 'events': [{'action': 'opened',
             'author': 'LaZyLion-ca',
             'comment_id': None,
             'datetime': '2013-06-06T13:30:31Z',
             'masked_author': 'username_0',
             'text': 'Hi all, Edit a file in Ice, click Save Icon...'
             'title': 'Click Save: Sorry, Cannot Write',
             'type': 'issue'},
             ...],
 'issue_id': 15222443,
 'issue_number': 264,
 'pull_request': None,
 'repo': 'icecoder/ICEcoder',
 'text_size': 525,
 'usernames': '["LaZyLion-ca", "seyo-IV"]'}

Dataset pre-processing

This dataset was collected as part of The Stack dataset, and the curation rationale can be found at this link.

To improve the quality of the dataset and remove personally identifiable information (PII), we performed the following cleaning steps, which reduced the dataset's size from 180GB to 54GB:

  • We first removed automated text generated when users reply using their emails, using regex matching. We also deleted issues with little text (less than 200 total characters) and truncated long comments in the middle (to a maximum of 100 lines while keeping the last 20 lines). This step removed 18% of the volume.

  • We deleted comments from bots by looking for keywords in the author's username. If an issue became empty after this filtering, we removed it. We also removed comments that preceded those from bots if they triggered them, by looking for the bot's username inside the text. This step removed 61% of the remaining volume and 22% of the conversations, as bot-generated comments tend to be very long.

  • We then used the number of users in the conversation as a proxy for quality. We kept all conversations with two or more users. If a conversation had only one user, we kept it only if the total text was larger than 200 characters and smaller than 7000 characters. We also removed issues with more than 10 events, as we noticed that they were of low quality or from bots we missed in the previous filtering. This filtering removed 4% of the volume and 30% of the conversations.

  • To redact PII, we masked IP addresses, email addresses, and secret keys from the text using regexes. We also masked the usernames of the authors from the comments and replaced them with username_{i}, where i is the order of the author in the conversation.

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