A weighted string pattern matching-based passage ranking algorithm for video question answering.
Yu-Chieh WuJie-Chi YangYue-Shi LeePublished in: Expert Syst. Appl. (2008)
Keyphrases
- question answering
- pattern matching
- ranking algorithm
- string matching
- regular expressions
- information extraction
- information retrieval
- passage retrieval
- video data
- natural language
- natural language processing
- ranking functions
- cross language
- relation extraction
- named entities
- suffix tree
- text summarization
- tf idf
- text categorization
- approximate pattern matching