Categorization is the process of labeling documents to meet some information needs; examples of documents that might be

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Categorization is the process of labeling documents to meet someinformation needs; examples of documents that might be labeled withtags indicating language, spam or ham (not spam), relevant orirrelevant. Filtering is the process of evaluating documents basedon some of the information needs themselves. In general, the formsof filtering and categorization are topic-oriented filtering,language categorization, and spam filtering.Explain topic-oriented filtering, language categorization,spam filtering and how each form of filtering andcategorization works!