An Information Retrieval-Based Approach to Determining Contextual Opinion Polarity of Words.
Olga VechtomovaKaheer SulemanJack ThomasPublished in: ECIR (2014)
Keyphrases
- opinion words
- information retrieval
- context dependent
- sentiment analysis
- sentiment words
- sentiment lexicon
- opinion mining
- positive or negative
- sentiment polarity
- product features
- sentiment classification
- customer reviews
- text mining
- domain dependent
- information retrieval systems
- opinion retrieval
- polarity classification
- language model
- contextual information
- n gram
- query expansion
- sentence level
- search engine
- text classification
- learning to rank
- semantic similarity
- document collections
- question answering
- text documents
- information extraction
- document representation
- vector space model
- language modeling
- related documents
- test collection
- natural language processing
- contextual features
- relevance feedback
- document retrieval
- relevant documents
- tf idf
- context sensitive
- public opinion
- positive and negative
- keywords
- machine learning