knme text processing

i need 20newsgroup dataset  in knime format.  how to do it? if it is available please give the link.

I don't exactly get what you want to do. If you have the newsgroup data e.g. in csv format you can use the file reader to read that csv file and then use the "Strings to Documents" node to convert the strings into documents in order to use nodes from the texprocessing feature. To access newsgroup text data from the web use the Palladian plugin (see community contributions). Some of the Palladian parser nodes will create KNIME data cells of the DocumentCell type, which then can be processed by Textprocessing nodes. I hope this helps.

Cheers, Kilian