Improving Term Frequency Normalization for Multi-topical Documents and Application to Language Modeling Approaches.
Seung-Hoon NaIn-Su KangJong-Hyeok LeePublished in: ECIR (2008)
Keyphrases
- term frequency
- language modeling approaches
- language modeling
- language model
- retrieval model
- tf idf
- text classification
- text categorization
- smoothing methods
- text documents
- sentence retrieval
- average precision
- query terms
- document representation
- document retrieval
- test collection
- bag of words
- information retrieval
- document collections
- image classification
- information retrieval systems
- retrieval systems
- vector space model
- relevant documents
- query expansion
- relevance feedback
- probabilistic model
- keywords
- similarity measure
- feature extraction