perl 实现数据分类 tokenization，抽取feature selection，文件分类documentation classification-The project’s goal is to provide an

application to provide a brief list for a set of

books in xml format then maybe people can

through this list to decide which book they

want to select or if some genre books are in

those set of books.So the application at least

can provide the Title, Author, Language,

Release Date and Genre fields. To provide

those informations, the application should

fetch test files and training files then process

those files to find the desired content then

store only the extracted content in

outputting file (books.xml). The extracted

content should help people to know what

those books are about. One import fact

which the application should provide is the

genre, because people maybe only want to

search a certain category of books.

So to implement tasks above, the first step,

the application tokenizes the books (test and

training xml files) to represent the documentfor extracting facts and decide classification.

This step should be careful to to