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QACTIS-based Question Answering at TREC 2005

Patrick Schone, Gary M. Ciany, R. Cutts, Paul McNamee, James Mayfield, Thomas Smith
2005 Text Retrieval Conference  
In this paper, we provide a complete overview of those parts of QACTIS which focus specifically on text question-answering, and we analyze the system's performance at TREC-2005.  ...  QACTIS was tested at TREC-2005 as a means of identifying its successes and limitations in answering questions specifically from English newswire text as it moves in the direction of multilingual, multimedia  ...  The TREC-2005 QACTIS system observed a small overall performance increase over that of our TREC-2004. QACTIS system.  ... 
dblp:conf/trec/SchoneCCMMS05 fatcat:og6m7folznelhcvg6g3kf6rdje

QACTIS Enhancements in TREC QA 2006

Patrick Schone, Gary M. Ciany, R. Cutts, Paul McNamee, James Mayfield, Tom Smith
2006 Text Retrieval Conference  
The QACTIS system has been tested in previous years at the TREC Question Answering Evaluations.  ...  retrieval, and emerging statistics-driven question-answering.  ...  Considering the "Other"s At TREC-2005, the F=0.248 that our system generated was the maximum score for any of the "Other" question answerers.  ... 
dblp:conf/trec/SchoneCCMMS06 fatcat:swdqo4mlxzb3ljaztbx3fvjt7y

Learning Named Entity Hyponyms for Question Answering

Paul McNamee, Rion Snow, Patrick Schone, James Mayfield
2008 International Joint Conference on Natural Language Processing  
Lexical mismatch is a problem that confounds automatic question answering systems.  ...  On TREC QA data our method produces a 9% improvement in performance.  ...  QACTIS was fielded at the 2004-2006 TREC QA evaluations and placed fifth at the 2005 workshop. We worked with a version of the software from July 2005.  ... 
dblp:conf/ijcnlp/McNameeSSM08 fatcat:rb7qn52ilfdnncxgeaqbdrvvuy