Title
A natural language question answering system as a participant in human Q&A portals
Abstract
LogAnswer is a question answering (QA) system for the German language, aimed at providing concise and correct answers to arbitrary questions. For this purpose LogAnswer is designed as an embedded artificial intelligence system which integrates methods from several fields of AI, namely natural language processing, machine learning, knowledge representation and automated theorem proving. We intend to employ LogAnswer as a virtual user within Internet-based QA forums, where it must be able to identify the questions that it cannot answer correctly, a task that normally receives little attention in QA research compared to the actual answer derivation. The paper presents a machine learning solution to the wrong answer avoidance (WAA) problem, applying a meta classifier to the output of simple term-based classifiers and a rich set of other WAA features. Experiments with a large set of real-world questions from a QA forum show that the proposed method significantly improves the WAA characteristics of our system.
Year
DOI
Venue
2011
10.5591/978-1-57735-516-8/IJCAI11-405
IJCAI
Keywords
Field
DocType
purpose loganswer,waa characteristic,qa research,internet-based qa forum,embedded artificial intelligence system,wrong answer avoidance,actual answer derivation,waa feature,correct answer,qa forum show,natural language question answering,human q
Computer science,Natural language question answering,Natural language processing,Artificial intelligence,Classifier (linguistics),Artificial Intelligence System,The Internet,Knowledge representation and reasoning,Question answering,Information retrieval,Automated theorem proving,Machine learning,German
Conference
Citations 
PageRank 
References 
5
0.46
11
Authors
4
Name
Order
Citations
PageRank
Tiansi Dong1218.80
Ulrich Furbach263988.23
Ingo Glöckner350.46
Björn Pelzer411410.64