公开(公告)号：EP2616926A4

公开(公告)日：2015-09-23

申请号：EP11827460

申请日：2011-09-21

Applicant: IBM

Inventor： DUBOUE PABLO A ,  FAN JAMES J ,  FERRUCCI DAVID A ,  MURDOCK JAMES W ,  WELTY CHRISTOPHER A ,  ZADROZNY WLODEK W

IPC: G06F7/00

CPC classification number: G06F17/30675

Abstract: A system, method and computer program product for conducting questions and answers with deferred type evaluation based on any corpus of data. The method includes processing a query including waiting until a “Type” (i.e. a descriptor) is determined AND a candidate answer is provided. Then, a search is conducted to look (search) for evidence that the candidate answer has the required Lexical Answer Type (e.g., as determined by a matching function that can leverage a parser, a semantic interpreter and/or a simple pattern matcher). Prior to or during candidate answer evaluation, a process is provided for extracting and storing collections of entity-type pairs from semi-structured text documents. During QA processing and candidate answer scoring, a process is implemented to match the query LAT against the lexical type of each provided candidate answer and generate a score judging a degree of match.