Information Extraction based Approach for the NTCIR-9 1CLICK Task.
Makoto P. KatoMeng ZhaoKosetsu TsukudaYoshiyuki ShojiTakehiro YamamotoHiroaki OhshimaKatsumi TanakaPublished in: NTCIR (2011)
Keyphrases
- information extraction
- test collection
- precision and recall
- text mining
- free text
- search engine
- natural language processing
- information retrieval
- web retrieval
- web search
- named entities
- question answering
- named entity recognition
- ontology based information extraction
- textual data
- conditional random fields
- web documents
- semi structured
- user behavior
- evaluation metrics
- relation extraction
- patent retrieval
- extracting meaningful
- machine learning
- web mining
- machine translation
- evaluation framework
- web pages
- open domain