US 2016/0260026 A1 · DEVICE FOR COLLECTING CONTRADICTORY EXPRESSIONS AND COMPUTER PROGRAM THEREFOR

Abstract

[Object] An object is to provide a device capable of efficiently collecting contradictory expressions in units smaller than a sentence. [Solution] A contradictory expression collecting device includes: a first-stage contradiction pattern classifying unit extracting a pattern pair consisting of mutually contradictory patterns by machine learning using as training data pattern pairs consisting of patterns in the form of “subject X predicate object Y”; an additional contradiction pattern pair deriving unit 130 deriving a new pattern pair by rewriting one pattern of each extracted pattern pair by using entailment relation; a training data expanding unit for expanding training data by adding to the training data those of the newly derived pattern pairs which are highly likely consisting of mutually contradicting patterns; and an SVM 142 performing a second-stage classification classifying given pattern pairs to pattern pairs consisting of mutually contradictory patterns and to other pairs, based on machine learning using the expanded training data.

Claims11

Dependent claims

A device for collecting contradictory expressions used connected to entailment relation storage means for storing entailment relation of words and to a first storage device storing a plurality of binary pattern pairs, wherein

a binary pattern pair includes two binary patterns and each binary pattern includes a unary pattern as a sub pattern;
said device for collecting contradictory expressions comprising:
first classifying means for extracting, by machine learning using as training data binary pattern pairs selected from the binary pattern pairs stored in said first storage device, mutually contradictory binary pattern pairs from said plurality of binary patterns stored in said first storage device;
deriving means for applying, to each of the binary pattern pairs extracted by said first classifying means, the entailment relation stored in said entailment relation storage means, for rewriting one binary pattern and thereby for deriving a new binary pattern pair;
training data expanding means for extracting, from the new binary patterns derived by said deriving means, binary pattern pairs highly possibly be consisting of mutually contradictory binary patterns and adding to said training data, for expanding said training data;
and
second classifying means for classifying, by machine learning using the expanded training data expanded by said training data expanding means, given binary pattern pairs to binary pattern pairs which are mutually contradictory and to those which are not.

4 more elements

Dependencies are inferred from the claim text.

Device for collecting contradictory expressions and computer program therefor

Life of this patent

Device for collecting contradictory expressions and computer program therefor

Life of this patent

Abstract

Claims11