document classification中文什么意思

文件分类
文献分类

document: n. 1.文献，文件；公文。 2.证件，证书，凭证。 3 ...
classification: n. 1.选别；分等，分级；分选。 2.【动、植】分类( ...
automatic document classification: 自动文件分类; 自动文献分类
classification of standards document: 标准文献分类
document classification and theme: 文献分类法与主题法

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With difference from the way that traditional methods perform by accumulating the frequency of keywords . we propose a new metrical function that employs the rs - based entropy by comparing function values to measure the feature of web pages . besides , according to the unstructured and heterogenous characteristics of www , the effect of hypertext tags to keywords " weigh has been taken into account to obtain the most effective keywords for document classification
有别于传统的对关键字频度进行累加的方法，本文提出了基于信息熵的文本关键词测度函数，通过对关键词函数值进行比较，获取对文本分类最具影响性的关键词序列；同时，针对web上异质、非结构化信息的特点，该分类算法还考虑了超文本标记对关键词权值的影响。
In this paper , a rs - based model , which starts up from trained documents for web documents classification , is introduced . taking advantage of the rs theory ' s features in efficient dealing with vague , indiscernible , and fuzzy information , we sets up a series of layered subsystems to reduce redundant properties from classification tables . in this way , we can not only efficiently reduce the dimension of documents but also keep the information of keywords set
本文提出了一种基于粗糙集理论的web文本分类模型，该模型从已分类的训练文本出发，建立一系列不同层次的文本分类子系统，利用roughset理论有效处理不精确、不确定、含糊信息的特性，对分类决策表进行属性约简，既有效降低了web文本的维度，又保持关键词集合中的信息。

Document classification or document categorization is a problem in library science, information science and computer science. The task is to assign a document to one or more classes or categories. This may be done "manually" (or "intellectually") or algorithmically. The intellectual classification of documents has mostly been the province of library science, while the algorithmic classification of documents is used mainly in information science and computer science. The problems are overlapping, however, and there is therefore also interdisciplinary research on document classification.

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document classification中文什么意思

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