首页>
外国专利>
TEXT-REPRESENTATION, TEXT-MATCHING AND TEXT-CLASSIFICATION CODE, SYSTEM AND METHOD
TEXT-REPRESENTATION, TEXT-MATCHING AND TEXT-CLASSIFICATION CODE, SYSTEM AND METHOD
展开▼
机译:文本表示,文本匹配和文本分类代码,系统和方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
Disclosed are a computer-readable code, system and method for representing, retrieving, and/or classifying a target document in the form of a digitally encoded natural-language text. For each of a plurality of non-generic words and/or words groups characterizing the target document, there is determined a selectivity value calculated as the frequency of occurrence of that term in a library of texts in one field, relative to the frequency of occurrence of the same term in one or more other libraries of texts in one or more other fields, respectively, and the document is represented as a vector of terms, where the coefficient assigned to each term is a function of the selectivity value determined for that term. There is then determined, for each of the plurality of sample texts having associated classification identifiers, a match score related to the number of descriptive terms present in or derived from that text that match those in the target text. From the selected matched texts, and the associated classification identifiers, a classification determination of the target document may be made.
展开▼