# HW1: Recommender Systems — Data

来源：https://www.kaggle.com/competitions/cmpe-256-f2019-hw1/data

本地 Meta Kaggle 快照；不是本次实时页面。

# Dataset Description

<h2>Data Description:</h2>
The training dataset consists of 85724 ratings and the test dataset consists of 2154 ratings. We provide you with the training data ratings and the test ratings are held out. The data are provided as text in train.dat and test.dat, which should be processed appropriately. 

**train.dat**: Training set (UserID <tab separator> ItemID <tab separator> Rating (Integers 1 to 5) <tab separator> Timestamp (Unix time stamp).

**test.dat**: Testing set (RatingID<coma separator>, UserID <coma separator> ItemID, no rating provided).

**format.dat**: A sample submission with 2154 ratings. (These are random values, and shall be replaced with your predicted ratings in the order of the test.dat file for your submission).