山东大学学报(工学版)
山東大學學報(工學版)
산동대학학보(공학판)
JOURNAL OF SHANDONG UNIVERSITY(ENGINEERING SCIENCE)
2015年
1期
19-23
,共5页
情感分析%观点挖掘%文本数据挖掘%特征抽取%三支决策
情感分析%觀點挖掘%文本數據挖掘%特徵抽取%三支決策
정감분석%관점알굴%문본수거알굴%특정추취%삼지결책
sentiment analysis%opinion mining%text data mining%feature extraction%three-way decision
提出了一种新的特征提取方式,与三支决策思想相结合,运用在文本情感分析中,以提高分类器的效率。根据训练集合创建动态情感词典,然后根据情感词典提取文本的抽象特征,形成特征矩阵。在分类过程中,如果分类器对于目标文本的所属分类确信程度不够高,那么分类器会利用三支决策的思想,将文本置于边界域中,等待别的处理方法。实验结果表明,在英文影评数据集上,基于动态词典的特征提取方法可以取得更好的分类准确率,而且三支决策规则可将一些样例放入边界域,提高了分类准确率。
提齣瞭一種新的特徵提取方式,與三支決策思想相結閤,運用在文本情感分析中,以提高分類器的效率。根據訓練集閤創建動態情感詞典,然後根據情感詞典提取文本的抽象特徵,形成特徵矩陣。在分類過程中,如果分類器對于目標文本的所屬分類確信程度不夠高,那麽分類器會利用三支決策的思想,將文本置于邊界域中,等待彆的處理方法。實驗結果錶明,在英文影評數據集上,基于動態詞典的特徵提取方法可以取得更好的分類準確率,而且三支決策規則可將一些樣例放入邊界域,提高瞭分類準確率。
제출료일충신적특정제취방식,여삼지결책사상상결합,운용재문본정감분석중,이제고분류기적효솔。근거훈련집합창건동태정감사전,연후근거정감사전제취문본적추상특정,형성특정구진。재분류과정중,여과분류기대우목표문본적소속분류학신정도불구고,나요분류기회이용삼지결책적사상,장문본치우변계역중,등대별적처리방법。실험결과표명,재영문영평수거집상,기우동태사전적특정제취방법가이취득경호적분류준학솔,이차삼지결책규칙가장일사양례방입변계역,제고료분류준학솔。
A new way of feature extraction and the concept of three-way decision was utilized in traditional text senti-ment analysis methods in order to boost the classification accuracy.In the new method,a dynamic lexicon was intro-duced according to the training set and was utilized to extract abstract features for every piece of text to form the feature matrix.Besides,in the classification process,target texts with which the classifier had low confidence of sentiment la-bels were put into the boundary region for later decision.Experimental results showed that the method reached better re-sults with the help of dynamic sentiment lexicon,and the three-way decision also raised the accuracy of classification.