MURAX: a robust linguistic approach for question answering using an on-line encyclopedia
SIGIR '93 Proceedings of the 16th annual international ACM SIGIR conference on Research and development in information retrieval
Document centered approach to text normalization
SIGIR '00 Proceedings of the 23rd annual international ACM SIGIR conference on Research and development in information retrieval
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
Mining the web for answers to natural language questions
Proceedings of the tenth international conference on Information and knowledge management
Getting answers to natural language questions on the web
Journal of the American Society for Information Science and Technology
Improving Category Specific Web Search by Learning Query Modifications
SAINT '01 Proceedings of the 2001 Symposium on Applications and the Internet (SAINT 2001)
Ranking suspected answers to natural language questions using predictive annotation
ANLC '00 Proceedings of the sixth conference on Applied natural language processing
ANLC '00 Proceedings of the sixth conference on Applied natural language processing
Learning trees and rules with set-valued features
AAAI'96 Proceedings of the thirteenth national conference on Artificial intelligence - Volume 1
ICDT '03 Proceedings of the 9th International Conference on Database Theory
Structured use of external knowledge for event-based open domain question answering
Proceedings of the 26th annual international ACM SIGIR conference on Research and development in informaion retrieval
Learning to find answers to questions on the Web
ACM Transactions on Internet Technology (TOIT)
Web question answering through automatically learned patterns
Proceedings of the 4th ACM/IEEE-CS joint conference on Digital libraries
Learning patterns to answer open domain questions on the web
Proceedings of the 27th annual international ACM SIGIR conference on Research and development in information retrieval
Self-learning web question answering system
Proceedings of the 13th international World Wide Web conference on Alternate track papers & posters
Chinese question-answering system
Journal of Computer Science and Technology
World wide web site summarization
Web Intelligence and Agent Systems
Mining natural language answers from the web
Web Intelligence and Agent Systems
Editorial: special issue on web content mining
ACM SIGKDD Explorations Newsletter
Analysis of Statistical Question Classification for Fact-Based Questions
Information Retrieval
QUALIFIER: question answering by lexical fabric and external resources
EACL '03 Proceedings of the tenth conference on European chapter of the Association for Computational Linguistics - Volume 1
Narrative text classification for automatic key phrase extraction in web document corpora
Proceedings of the 7th annual ACM international workshop on Web information and data management
Retrieving answers from frequently asked questions pages on the web
Proceedings of the 14th ACM international conference on Information and knowledge management
A new approach to intranet search based on information extraction
Proceedings of the 14th ACM international conference on Information and knowledge management
Deriving quantitative overviews of free text assessments on the web
Proceedings of the 11th international conference on Intelligent user interfaces
Clustering web pages about persons and organizations
Web Intelligence and Agent Systems
Learning question classifiers: the role of semantic information
Natural Language Engineering
HLT '05 Proceedings of the conference on Human Language Technology and Empirical Methods in Natural Language Processing
ACM Transactions on Computational Logic (TOCL)
Applying question answering technology to locating malevolent online content
Decision Support Systems
ProTDB: probabilistic data in XML
VLDB '02 Proceedings of the 28th international conference on Very Large Data Bases
Open-domain question: answering
Foundations and Trends in Information Retrieval
Question classification using head words and their hypernyms
EMNLP '08 Proceedings of the Conference on Empirical Methods in Natural Language Processing
Subtree mining for question classification problem
IJCAI'07 Proceedings of the 20th international joint conference on Artifical intelligence
Corpus-based knowledge representation
IJCAI'03 Proceedings of the 18th international joint conference on Artificial intelligence
Retrieving good, better, and best answers to questions in advertisements
Proceedings of the eleventh international workshop on Web information and data management
Expected Answer Type Identification from Unprocessed Noisy Questions
FQAS '09 Proceedings of the 8th International Conference on Flexible Query Answering Systems
A framework for corroborating answers from multiple web sources
Information Systems
Confucius and its intelligent disciples: integrating social with search
Proceedings of the VLDB Endowment
Improving subtree-based question classification classifiers with word-cluster models
NLDB'11 Proceedings of the 16th international conference on Natural language processing and information systems
A survey on question answering technology from an information retrieval perspective
Information Sciences: an International Journal
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
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
A supervised learning approach to entity search
AIRS'06 Proceedings of the Third Asia conference on Information Retrieval Technology
Analyzing the effect of query class on document retrieval performance
AI'04 Proceedings of the 17th Australian joint conference on Advances in Artificial Intelligence
CLEF2006 question answering experiments at Tokyo Institute of Technology
CLEF'06 Proceedings of the 7th international conference on Cross-Language Evaluation Forum: evaluation of multilingual and multi-modal information retrieval
A Multi-Agent Question-Answering System for E-Learning and Collaborative Learning Environment
International Journal of Distance Education Technologies
Towards domain independent why text segment classification based on bag of function words
AI'12 Proceedings of the 25th Australasian joint conference on Advances in Artificial Intelligence
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Web-based search engines such as Google and NorthernLight return documents that are relevant to a user query, not answers to user questions. We have developed an architecture that augments existing search engines so that they support natural language question answering. The process entails five steps: query modulation, document retrieval, passage extraction, phrase extraction, and answer ranking. In this paper we describe some probabilistic approaches to the last three of these stages. We show how our techniques apply to a number of existing search engines and we also present results contrasting three different methods for question answering. Our algorithm, probabilistic phrase reranking (PPR) using proximity and question type features achieves a total reciprocal document rank of .20 on the TREC 8 corpus. Our techniques have been implemented as a Web-accessible system, called NSIR.