Question-answering by predictive annotation

John Prager, Eric Brown, Anni Coden, Dragomir Radev
2000 Proceedings of the 23rd annual international ACM SIGIR conference on Research and development in information retrieval - SIGIR '00  
We present a new technique for question answering called Predictive Annotation. Predictive Annotation identifies potential answers to questions in text, annotates them accordingly and indexes them. This technique, along with a complementary analysis of questions, passage-level ranking and answer selection, produces a system effective at answering natural-language fact-seeking questions posed against large document collections. Experimental results show the effects of different parameter
more » ... and lead to a number of general observations about the question-answering problem. Permlss,on to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or cornmerc=al advantage and that copras bear thin notme and the full citation on the first page 'To copy otherwise, to repubhsh, to post on servers or to redistribute to |isis, requires prior specific permission and/or 8 fee.
doi:10.1145/345508.345574 dblp:conf/sigir/PragerBCR00 fatcat:ar4gxpsigfel7hjhhdm25op2de