System for recognizing sentence patterns and a sys

专利名称：System for recognizing sentence patterns

and a system for recognizing sentencepatterns and grammatical cases

发明人：Hiroshi Suematsu申请号：US07/557833申请日：19900726公开号：US05418716A公开日：19950523

摘要：A slot table contains (1) all possible sentence patterns (VPs), arranged in rows,which a predicate in an input sentence can take, and (2) arguments of the VPs expressedas slot conditions in slots positioned in a finite number of positions. A grammatical casepattern table contains columns corresponding to respective grammatical cases of thebasic patterns arranged in the order in which the cases appear in a basic pattern beforeshifting; all the grammatical case patterns are expressed as binary values representingexisting/non-existing ones of the respective grammatical cases in respective rowscorresponding to the grammatical case patterns. The binary values are added up tonumbers of the position information in the basic pattern, and the grammatical cases,which correspond to columns that correspond to the last number among numbers of thebinary values, are treated as grammatical cases for arguments of the VP. One position onthe slot table is selected with respect to candidates for arguments of VPs in the inputsentence, and a candidate's features are compared with the slot conditions of all possibleVPs in slots in the same position. Plural VPs are processed in parallel by recognizing asbeing appropriate only those VPs with slots whose slot conditions match the candidate's

features, and only the grammatical cases that have been described in the slots of suchrecognized VPs are recognized as appropriate. Because a finite number of positions is seton the slot table, comparison of slot conditions, in positions other than the specificposition, with candidate's features is unnecessary.

申请人：NEC CORPORATION

代理机构：Sughrue, Mion, Zinn, Macpeak & Seas

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