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    ICWSM
    2009
    157views Internet Technology» more  ICWSM 2009»
    Delta TFIDF: An Improved Feature Space for Sentiment Analysis
    13 years 4 months ago
    Delta TFIDF: An Improved Feature Space for Sentiment Analysis
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    Mining opinions and sentiment from social networking sites is a popular application for social media systems. Common approaches use a machine learning system with a bag of words f...
    Justin Martineau, Tim Finin
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    CIKM
    2009
    Springer
    160views Information Technology» more  CIKM 2009»
    Improving binary classification on text problems using differential word features
    13 years 11 months ago
    Improving binary classification on text problems using differential word features
    Download  ebiquity.umbc.edu
    We describe an efficient technique to weigh word-based features in binary classification tasks and show that it significantly improves classification accuracy on a range of proble...
    Justin Martineau, Tim Finin, Anupam Joshi, Shamit ...
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