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  "fetched_at": "2026-10-19T12:43:23Z",
  "source_url": "https://www.kaggle.com/competitions/competitive-data-science-predict-future-sales/data",
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      "name": "rules",
      "content": "<!-- Begin Base Rules -->\n<h3>One account per participant</h3>\n<p>You cannot sign up to Kaggle from multiple accounts and therefore you cannot submit from multiple accounts.</p>\n<h3>No private sharing outside teams</h3>\n<p>Privately sharing code or data outside of teams is not permitted. It's okay to share code if made available to all participants on the forums.</p>\n<h3>Team Mergers</h3>\n<p>Team mergers are allowed and can be performed by the team leader. In order to merge, the combined team must have a total submission count less than or equal to the maximum allowed as of the merge date. The maximum allowed is the number of submissions per day multiplied by the number of days the competition has been running.</p>\n<h3>Team Limits</h3>\n<p>Three individuals.</p>\n<h3>Submission Limits</h3>\n<p>You may submit a maximum of 5 entries per day.</p>\n<h3>Competition Timeline</h3>\n<p>There are no deadlines in this competition, other than the final project deadline on Coursera.</p>",
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      "name": "data-description",
      "content": "<p>You are provided with daily historical sales data. The task is to forecast the total amount of products sold in every shop for the test set. Note that the list of shops and products slightly changes every month. Creating a robust model that can handle such situations is part of the challenge.</p>\n<h2>File descriptions</h2>\n<ul>\n<li><strong>sales_train.csv</strong> - the training set. Daily historical data from January 2013 to October 2015.</li>\n<li><strong>test.csv</strong> - the test set. You need to forecast the sales for these shops and products for November 2015.</li>\n<li><strong>sample_submission.csv</strong> - a sample submission file in the correct format.</li>\n<li><strong>items.csv</strong> - supplemental information about the items/products.</li>\n<li><strong>item_categories.csv</strong>  - supplemental information about the items categories.</li>\n<li><strong>shops.csv</strong>- supplemental information about the shops.</li>\n</ul>\n<h2>Data fields</h2>\n<ul>\n<li><strong>ID</strong> - an Id that represents a (Shop, Item) tuple within the test set</li>\n<li><strong>shop_id</strong> - unique identifier of a shop</li>\n<li><strong>item_id</strong> - unique identifier of a product</li>\n<li><strong>item_category_id</strong> - unique identifier of item category</li>\n<li><strong>item_cnt_day</strong> - number of products sold. You are predicting a monthly amount of this measure</li>\n<li><strong>item_price</strong> - current price of an item</li>\n<li><strong>date</strong> - date in format dd/mm/yyyy</li>\n<li><strong>date_block_num</strong> - a consecutive month number, used for convenience. January 2013 is 0, February 2013 is 1,..., October 2015 is 33</li>\n<li><strong>item_name</strong> - name of item</li>\n<li><strong>shop_name</strong> - name of shop</li>\n<li><strong>item_category_name</strong> - name of item category</li>\n</ul>\n\n<p>This dataset is permitted to be used for any purpose, including commercial use.</p>\n",
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    {
      "name": "Description",
      "content": "This challenge serves as final project for the  <a href=\"https://www.coursera.org/learn/competitive-data-science/home/welcome\">\"How to win a data science competition\"</a> Coursera course.\n\n<p>In this competition you will work with a challenging time-series dataset consisting of daily sales data, kindly provided by one of the largest Russian software firms - <strong><a href=\"http://1c.ru/eng/title.htm\">1C Company</a></strong>. </p>\n<p>We are asking you to predict total sales for every product and store in the next month. By solving this competition you will be able to apply and enhance your data science skills.</p>",
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      "name": "Evaluation",
      "content": "<p>Submissions are evaluated by <a href=\"https://en.wikipedia.org/wiki/Root-mean-square_deviation\">root mean squared error (RMSE)</a>. True target values are clipped into [0,20] range.</p>\n<p><strong>Submission File</strong></p>\n<p>For each id in the test set, you must predict a total number of sales. The file should contain a header and have the following format:</p>\n<pre>ID,item_cnt_month<br />0,0.5<br />1,0.5<br />2,0.5<br />3,0.5<br />etc.</pre>",
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