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中文摘要：
该文主要识别产品评论中的条件句并分析其倾向性,判断评论者对产品属性持积极或是消极的态度。条件句中一般都含有条件连接词,但是有些条件句中没有条件连接词,称为隐式条件句。经过观察,发现隐式条件句中含有一些体现条件关系的词,称之为隐式条件词。识别条件句时,主要依据条件连接词和隐式条件词及其词性以及类序列规则进行分类;分析属性倾向性时,依据条件连接词和隐式条件词把条件句分为假设条件句、让步条件句、特定条件句和无条件句四类,并把条件句的类别用于SVM分类。通过实验证明了该方法有助于条件句倾向性分类。
英文摘要：
This paper identifies conditional sentences in product reviews and determines whether opinions expressed on different features are positive or negative.Conditional sentences usually contain conditional conjunctions,but some sentences don＇t contain conditional conjunctions,which are called implicit conditional sentences.Implicit conditional sentences contain some words which are able to express conditional relationships,and these words are called implicit conditional words.Conditional sentences are identified by using conditional conjunctions,implicit conditional words,their tags and class sequential rules.When analyzing the orientation of conditional sentences,conditional sentences are classified by SVM into four classes according to conditional conjunctions and implicit conditional words.It is proved that the proposed method is useful according to the experimental results.
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