Description: 文本挖掘的背景
文本挖掘的过程
特征抽取
特征选择
文本分类
文本聚类
模型评价
-The background of text mining text mining process of feature extraction feature selection text classification text clustering model to evaluate the Platform: |
Size: 226304 |
Author:linda |
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Description: 文本特征提取方法研究。文本的表示及其特征项的选取是文本挖掘、信息检索的一个基本问题，它把从文本中抽取出的特征词进行量化来表示文本信息。-Text Feature Extraction. And characteristics of the text of that item selection is text mining, information retrieval is a basic problem, which to extract from the text to quantify the characteristics of words to represent text information. Platform: |
Size: 43008 |
Author:延春生 |
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Description: 在文本挖掘中，文档通常以特征向量的形式表示。为了提高文本挖掘算法的运行速度，降低占用的内存空间，过滤掉不相关或相关程度低的特征，提出一种改进的特征选择算法，该算法对特征进行综合考虑，从而更加准确地选取有效的特征。实验验证了改进算法的可行性和有效性。-In text mining，documents are usually
meanwith the form of the eigenvector．In
order to enhance the operating speed and reduce the memory space occupied and filter out irrelevant or lower degree
of features，an improved feature selection algorithm is presented．Wecomprehensively
considered features，SOfeatures can be more effective andaccurate selected．And
the algorithm is verified exactly with
the instance in this paper． Platform: |
Size: 389120 |
Author:李婷 |
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Description: 音乐领域中文实体关系抽取研究
实体关系抽取的任务是从文本中抽取出两个或者多个实体之间预先定义
好的语义关系。本文将实体关系抽取定义为一个分类问题，主要研究内容是
中文音乐领域的实体关系抽取。针对这一问题，本文首先构建了中文音乐实
体关系语料库，然后分别采用了基于序列模式挖掘的无指导的方法和基于特
征提取的有指导的方法来解决这一问题。 -Dissertation for the Master Degree in Engineering urgently needed to deal with, efficient Web classification method is to extract the required letter from the online Sea Scout information, the interest rate on the key technology, feature selection is an important foundation for text classification mining, the tomb of generalized information theory as the theoretical basis, the tomb of selection methods at the secondary entropy of mutual trust Chi characteristics of each feature, independent assessment, then the feature set to analyze the relationship between the characteristics and categories, from high-dimensional feature space selected remove the lining of the characteristics of effective text classification, reducing the dimension of the text feature space, improve the nature of the text classification Platform: |
Size: 1445888 |
Author:xz |
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Description: 关于文本分类、文本挖掘、特征选择的书籍，阐述了层次文本分类模型的工作-
About text classification, text mining, feature selection of books, describes the work hierarchy text classification model Platform: |
Size: 6965248 |
Author:superman |
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Search - feature selection text mining