Building a question answering test collection
SIGIR '00 Proceedings of the 23rd annual international ACM SIGIR conference on Research and development in information retrieval
Retrieving descriptive phrases from large amounts of free text
Proceedings of the ninth international conference on Information and knowledge management
Learning search engine specific query transformations for question answering
Proceedings of the 10th international conference on World Wide Web
A Comparative Study on Feature Selection in Text Categorization
ICML '97 Proceedings of the Fourteenth International Conference on Machine Learning
Complex answers: a case study using a WWW question answering system
Natural Language Engineering
The TREC question answering track
Natural Language Engineering
Ranking suspected answers to natural language questions using predictive annotation
ANLC '00 Proceedings of the sixth conference on Applied natural language processing
Building a generation knowledge source using Internet-accessible newswire
ANLC '97 Proceedings of the fifth conference on Applied natural language processing
Answering what-is questions by Virtual Annotation
HLT '01 Proceedings of the first international conference on Human language technology research
Large scale testing of a descriptive phrase finder
HLT '01 Proceedings of the first international conference on Human language technology research
In question answering, two heads are better than one
NAACL '03 Proceedings of the 2003 Conference of the North American Chapter of the Association for Computational Linguistics on Human Language Technology - Volume 1
Automatic derivation of surface text patterns for a maximum entropy based question answering system
NAACL-Short '03 Proceedings of the 2003 Conference of the North American Chapter of the Association for Computational Linguistics on Human Language Technology: companion volume of the Proceedings of HLT-NAACL 2003--short papers - Volume 2
Evaluating answers to definition questions
NAACL-Short '03 Proceedings of the 2003 Conference of the North American Chapter of the Association for Computational Linguistics on Human Language Technology: companion volume of the Proceedings of HLT-NAACL 2003--short papers - Volume 2
Statistical QA - classifier vs. re-ranker: what's the difference?
MultiSumQA '03 Proceedings of the ACL 2003 workshop on Multilingual summarization and question answering - Volume 12
A Taxonomy Learning Method and Its Application to Characterize a Scientific Web Community
IEEE Transactions on Knowledge and Data Engineering
HLT '05 Proceedings of the conference on Human Language Technology and Empirical Methods in Natural Language Processing
A Multilingual Framework for Searching Definitions on Web Snippets
KI '07 Proceedings of the 30th annual German conference on Advances in Artificial Intelligence
GlossExtractor: A Web Application to Automatically Create a Domain Glossary
AI*IA '07 Proceedings of the 10th Congress of the Italian Association for Artificial Intelligence on AI*IA 2007: Artificial Intelligence and Human-Oriented Computing
Definition Extraction with Balanced Random Forests
GoTAL '08 Proceedings of the 6th international conference on Advances in Natural Language Processing
Towards the automatic extraction of definitions in Slavic
ACL '07 Proceedings of the Workshop on Balto-Slavonic Natural Language Processing: Information Extraction and Enabling Technologies
Extraction of definitions using grammar-enhanced machine learning
EACL '09 Proceedings of the 12th Conference of the European Chapter of the Association for Computational Linguistics: Student Research Workshop
Semantic indexing of a competence map to support scientific collaboration in a research community
IJCAI'07 Proceedings of the 20th international joint conference on Artifical intelligence
Finding short definitions of terms on web pages
EMNLP '09 Proceedings of the 2009 Conference on Empirical Methods in Natural Language Processing: Volume 3 - Volume 3
Language independent system for definition extraction: first results using learning algorithms
WDE '09 Proceedings of the 1st Workshop on Definition Extraction
Definition extraction using linguistic and structural features
WDE '09 Proceedings of the 1st Workshop on Definition Extraction
An automatic definition extraction in Arabic language
NLDB'10 Proceedings of the Natural language processing and information systems, and 15th international conference on Applications of natural language to information systems
Language technology for elearning
EC-TEL'06 Proceedings of the First European conference on Technology Enhanced Learning: innovative Approaches for Learning and Knowledge Sharing
Extracting definitions from brazilian legal texts
ICCSA'12 Proceedings of the 12th international conference on Computational Science and Its Applications - Volume Part III
Can click patterns across user's query logs predict answers to definition questions?
EACL '12 Proceedings of the 13th Conference of the European Chapter of the Association for Computational Linguistics
Automatic extraction of prerequisites and learning outcome from learning material
International Journal of Metadata, Semantics and Ontologies
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We present a learning-based method to identify single-snippet answers to definition questions in question answering systems for document collections. Our method combines and extends two previous techniques that were based mostly on manually crafted lexical patterns and WordNet hypernyms. We train a Support Vector Machine (SVM) on vectors comprising the verdicts or attributes of the previous techniques, and additional phrasal attributes that we acquire automatically. The SVM is then used to identify and rank single 250-character snippets that contain answers to definition questions. Experimental results indicate that our method clearly outperforms the techniques it builds upon.