Foundations of statistical natural language processing
Foundations of statistical natural language processing
Data mining: practical machine learning tools and techniques with Java implementations
Data mining: practical machine learning tools and techniques with Java implementations
Scaling question answering to the Web
Proceedings of the 10th international conference on World Wide Web
Learning search engine specific query transformations for question answering
Proceedings of the 10th international conference on World Wide Web
Exploiting redundancy in question answering
Proceedings of the 24th annual international ACM SIGIR conference on Research and development in information retrieval
Mining the web for answers to natural language questions
Proceedings of the tenth international conference on Information and knowledge management
On the MSE robustness of batching estimators
Proceedings of the 33nd conference on Winter simulation
DBXplorer: enabling keyword search over relational databases
Proceedings of the 2002 ACM SIGMOD international conference on Management of data
Towards a theory of natural language interfaces to databases
Proceedings of the 8th international conference on Intelligent user interfaces
An Information-Theoretic Definition of Similarity
ICML '98 Proceedings of the Fifteenth International Conference on Machine Learning
VLDB '98 Proceedings of the 24rd International Conference on Very Large Data Bases
Quantitative evaluation of passage retrieval algorithms for question answering
Proceedings of the 26th annual international ACM SIGIR conference on Research and development in informaion retrieval
Passage retrieval vs. document retrieval for factoid question answering
Proceedings of the 26th annual international ACM SIGIR conference on Research and development in informaion retrieval
Keyword Searching and Browsing in Databases using BANKS
ICDE '02 Proceedings of the 18th International Conference on Data Engineering
ANLC '00 Proceedings of the sixth conference on Applied natural language processing
Web-scale information extraction in knowitall: (preliminary results)
Proceedings of the 13th international conference on World Wide Web
Using knowledge to facilitate factoid answer pinpointing
COLING '02 Proceedings of the 19th international conference on Computational linguistics - Volume 1
Keyword Proximity Search in XML Trees
IEEE Transactions on Knowledge and Data Engineering
AnswerBus question answering system
HLT '02 Proceedings of the second international conference on Human Language Technology Research
1 Billion Pages = 1 Million Dollars? mining the web to play "who wants to be a millionaire?"
UAI'03 Proceedings of the Nineteenth conference on Uncertainty in Artificial Intelligence
A Report of Activities at the WIC-India Research Center
WI '04 Proceedings of the 2004 IEEE/WIC/ACM International Conference on Web Intelligence
Retrieving answers from frequently asked questions pages on the web
Proceedings of the 14th ACM international conference on Information and knowledge management
Enhanced answer type inference from questions using sequential models
HLT '05 Proceedings of the conference on Human Language Technology and Empirical Methods in Natural Language Processing
Extracting Social Networks Among Various Entities on the Web
ESWC '07 Proceedings of the 4th European conference on The Semantic Web: Research and Applications
MIR '08 Proceedings of the 1st ACM international conference on Multimedia information retrieval
A framework for corroborating answers from multiple web sources
Information Systems
Language independent answer prediction from the web
FinTAL'06 Proceedings of the 5th international conference on Advances in Natural Language Processing
Discovering links between lexical and surface features in questions and answers
WebKDD'04 Proceedings of the 6th international conference on Knowledge Discovery on the Web: advances in Web Mining and Web Usage Analysis
Chinese question-answering: comparing monolingual with english-chinese cross-lingual results
AIRS'06 Proceedings of the Third Asia conference on Information Retrieval Technology
Knowledge element extraction for knowledge-based learning resources organization
ICWL'07 Proceedings of the 6th international conference on Advances in web based learning
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We present a question answering (QA) system which learns how to detect and rank answer passages by analyzing questions and their answers (QA pairs) provided as training data. We built our system in only a few person-months using off-the-shelf components: a part-of-speech tagger, a shallow parser, a lexical network, and a few well-known supervised learning algorithms. In contrast, many of the top TREC QA systems are large group efforts, using customized ontologies, question classifiers, and highly tuned ranking functions. Our ease of deployment arises from using generic, trainable algorithms that exploit simple feature extractors on QA pairs. With TREC QA data, our system achieves mean reciprocal rank (MRR) that compares favorably with the best scores in recent years, and generalizes from one corpus to another. Our key technique is to recover, from the question, fragments of what might have been posed as a structured query, had a suitable schema been available. comprises selectors: tokens that are likely to appear (almost) unchanged in an answer passage. The other fragment contains question tokens which give clues about the answer type, and are expected to be replaced in the answer passage by tokens which specialize or instantiate the desired answer type. Selectors are like constants in where-clauses in relational queries, and answer types are like column names. We present new algorithms for locating selectors and answer type clues and using them in scoring passages with respect to a question.