数据库

libsvm数据库classification for binary

https://www.csie.ntu.edu.tw/~cjlin/libsvmtools/datasets/binary.html

This page contains many classification, regression, multi-label and string data sets stored in LIBSVM format. Many are from UCI, Statlog, StatLib and other collections. We thank their efforts. For most sets, we linearly scale each attribute to [-1,1] or [0,1]. The testing data (if provided) is adjusted accordingly. Some training data are further separated to "training" (tr) and "validation" (val) sets. Details can be found in the description of each data set. To read data via MATLAB, you can use "libsvmread" in LIBSVM package.

http://www.cs.jhu.edu/~mdredze/datasets/sentiment/  

Multi-Domain Sentiment Dataset (version 2.0)

John Blitzer, Mark Dredze, Fernando Pereira. Biographies, Bollywood, Boom-boxes and Blenders: Domain Adaptation for Sentiment Classification. Association of Computational Linguistics (ACL), 2007. 

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