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    ICWSM
    2009
    157views Internet Technology» more  ICWSM 2009»
    Delta TFIDF: An Improved Feature Space for Sentiment Analysis
    13 years 2 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 8 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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