Weka : Analytics Tool - Weka is a collection of machine learning algorithms for data mining tasks. The algorithms can either be applied directly to a dataset or called from your own Java code. Weka contains tools for data pre-processing, classification, regression, clustering, association rules, and visualization. It is also well-suited for developing new machine learning schemes.
Twitter Data Sets for Sentiment Analysis - This free data set is for training and testing sentiment analysis algorithms. It consists of 5513 hand-classified tweets. Each tweet was classified with respect to one of four different topics.
Tutorial, Data sets Sentiment analysis - Sentiment Symposium Tutorial
Tools for Sentiment Analysis - An effective collection of tools for sentiment analysis
Text Data Set - Datasets for single-label text categorization
Software Tools for NLP - Software Tools for NLP
SentiWordNet 3 is generated using an improved algorithm with respect to the previous SentiWordNet release and it is also aligned to the latest Princeton WordNet release (3.0). - SentiWordNet 3 is generated using an improved algorithm with respect to the previous SentiWordNet release and it is also aligned to the latest Princeton WordNet release (3.0).
Sentiment Analyzer Demo - Sentiment Demo
Sentiment Analysis in Twitter at SemEval 2013: - Sentiment Analysis in Twitter Data set
Sentiment Analysis Data Set, Pubblications - The reviews were downloaded in 2004 from the Epinions web site by Jack Grieve. They are divided in the following categories, with 25 positive and 25 negative reviews in each category. The classification into positive and negative was based on the "recommended" or "not recommended" tag that the reviewer provided.
Sentiment Analysis and Opinion Mining: Survey - Sentiment analysis and opinion mining is the field of study that analyzes people's opinions, sentiments, evaluations, attitudes, and emotions from written language. It is one of the most active research areas in natural language processing and is also widely studied in data mining, Web mining, and text mining.
Sentiment Analysis & Opinion Mining - Opinion Mining E-book by Bing liu
SenticNet - SenticNet is an initiative conceived at the MIT Media Laboratory in 2010 within an industrial Cooperative Awards in Science and Engineering (CASE) research project, funded by the UK
RepLab at CLEF 2012: - Sentiment Analysis for Twitter Data
RC Psycholinguistic Database Machine Usable Dictionary - MRC Psycholinguistic Database Machine Usable Dictionary [Electronic resource] : expanded Shorter Oxford English Dictionary entries / Max Coltheart and Michael Wilson
Natural Language Processing - The Stanford NLP Group makes parts of our Natural Language Processing software available to everyone.
Movie Data Set of work : Boo Pang et al - Data Set for classification of Movie Reviews
KEEL - KEEL (Knowledge Extraction based on Evolutionary Learning) is an open source (GPLv3) Java software tool which empowers the user to assess the behavior of evolutionary learning and Soft Computing based techniques for different kinds of DM problems: regression, classification, clustering, pattern mining and so on.
Data Set for Sentiment Analysis - A few data set with both training and testing data set