The following node is available in the Open Source KNIME predictive analytics and data mining platform version 2.7.1. Discover over 1000 other nodes, as well as enterprise functionality at http://knime.com.

Term Grouper

Groups all terms of a document by their text and deletes all tags, conflicting tags only or combines all tags, accordant to the users settings.

Dialog Options

Preprocessing options
Tag policy
Specifies whether all tags of grouped terms will be kept "Keep all", all tags will be deleted "Delete all" or only these tags will be deleted which tag types conflict. For instance terms containing the same string with one "POS" assigned to each will be grouped and the tags are deleted, cause of the conflicting tag type (POS).
Deep preprocessing options
Deep preprocessing
If deep preprocessing is checked, the terms contained inside the documents are preprocessed too, this means that the documents themselves are changed too, which is more time consuming.
Document column
Specifies the column containing the documents to preprocess.
Append unchanged documents
If checked, the documents contained in the specified "Original Document column" are appended unchanged even if deep preprocessing is checked. This helps to keep the original documents in the output data table without the agonizing pain of joining.
Original Document column
Specifies the column containing the original documents which can be attached unchanged.
Ignore unmodifiable tag
If checked unmodifiable terms will be preprocessed too.

Ports

Input Ports
0 The input table which contains the terms to convert.
Output Ports
0 The output table which contains the preprocessed terms.
This node is contained in KNIME Textprocessing Plug-in provided by KNIME GmbH, Konstanz, Germany.