Automatic text categorization has been used in search engines , digital library systems , and document management systems ( Yang , 1999 ) .
an evaluation of statistical approaches to text categorization”
Y Yang
As such , one of the primary objectives of automatic text categorization has been the enhancement and the support of information retrieval tasks to tackle problems , such as information filtering and routing , clustering of related documents , and the classification of documents into pre-specified subject themes . Automatic text categorization has been used in search engines , digital library systems , and document management systems ( Yang , 1999 ) . Such applications have included electronic email filtering , newsgroups classification , and survey data grouping .
Automatic text categorization has been used in search engines , digital library systems , and document management systems ( @@CITATION ) .