数据挖掘JesterJokeDataSetJester笑话数据集.pdfVIP

Jester Joke Data Set(Jester笑话数据集 ) 数据摘要： This dataset contains 4.1 Million continuous ratings (-10.00 to +10.00) of 100 jokes from 73,421 users: collected between April 1999 - May 2003. 中文关键词： 笑话 ,数据集 ,评分 ,推荐 , 英文关键词： jokes,dataset,ratings,recommendation, 数据格式： TEXT 数据用途： Classification，information processing 数据详细介绍： Jester Joke Data Set 4.1 Million continuous ratings (-10.00 to +10.00) of 100 jokes from 73,421 users: collected between April 1999 - May 2003. Freely available for research use when acknowledged with the following reference: Eigentaste: A Constant Time Collaborative Filtering Algorithm. Ken Goldberg, Theresa Roeder, Dhruv Gupta, and Chris Perkins. Information Retrieval, 4(2), 133-151. July 2001. (Aside: many papers, including ours, report Normalized Mean Absolute Error (NMAE) rates of approx 20%. How good is this compared with random guessing? In the Appendix to our paper, we show that if user ratings are uniformly distributed, random guessing yields NMAE = 33%.) As a courtesy, if you use the data, I would appreciate knowing your name, what research group you are in, and the publications that may result. The Jester Dataset (save to disk, then unzip to obtain Excel files): jester-data-1.zip : (3.9MB) Data from 24,983 users who have rated 36 or more jokes, a matrix with dimensions 24983 X 101. jester-data-2.zip : (3.6MB) Data from 23,500 users who have rated 36 or more jokes, a matrix with dimensions 23500 X 101. jester-data-3.zip : (2.1MB) Data from 24,938 users who have rated between 15 and 35 jokes, a matrix with dimensions 24,938 X 101. Format: 1 3 Data files contain anonymous ratings data from 73,421 users. 2 Data files are in .zip format, when unzipped, they are in Excel (.xls) format 3 Ratings are real values ranging from -10.00 to +10.00 (the value 99 corresponds to