Sentiment analysis of blogs by combining lexical knowledge with text classification

The explosion of user-generated content on the Web has led to new opportunities and significant challenges for companies, that are increasingly concerned about monitoring the discussion around their products. Tracking such discussion on weblogs, provides useful insight on how to improve products or market them more effectively. An important component of such analysis is to characterize the sentiment expressed in blogs about specific brands and products. Sentiment Analysis focuses on this task of automatically identifying whether a piece of text expresses a positive or negative opinion about the subject matter. Most previous work in this area uses prior lexical knowledge in terms of the sentiment-polarity of words. In contrast, some recent approaches treat the task as a text classification problem, where they learn to classify sentiment based only on labeled training data. In this paper, we present a unified framework in which one can use background lexical information in terms of word...

• Type: Conference
• Year: 2009
• Where: KDD
• Authors: Prem Melville, Wojciech Gryc, Richard D. Lawrence
• Keywords: Background Lexical Information, Data Mining, KDD 2009, Lexical Knowledge, Sentiment Analysis