You can verify that the correct knowledge base categories and decision plan actions were applied when the documents were classified by reviewing documents in the Classification Center.
When you run classification, classification actions are automatically applied to your documents as specified in the decision plan. When you review documents in the Classification Center, you can confirm these actions or submit the document to IBM Content Classification for reclassification. By reviewing documents, you can ensure that the correct decision plan actions are applied during classification. In addition, you can improve the classification of documents in the future because the system learns from your actions.
By default, the Classification Center displays 10 documents
per page when you review documents. To change the number of documents
that are displayed per page, configure the pageSize property in the classificationCenter.properties file
and then restart the Classification Center server.
By default, the classificationCenter.properties file
is in the Classification_Home/ECMTools/conf/repository_type directory.
Before you change the value of the pageSize property, take into account
that Classification Center locks
all documents on the currently displayed page. 
By
default, multiple users can review documents in Classification Center. Each user can specify
a different set of criteria for the content to review, or the users
can review the same set of documents. However, each document can be
reviewed by only one user at a time. When multiple users review the
same set of documents, the Classification Center locks
any documents that are currently in review by another user. Locked
documents can be viewed by other users, but the documents cannot be
confirmed or reclassified. 
By default, up to four users
can review the same set of documents. If the number of reviewers is
greater than four, decrease the value of the documentsCollectionBufferSize property
in the classificationCenter.properties file to
decrease the maximum number of documents that can be retrieved for
review at one time. For example, try decreasing the value to 5000.
Ensure that you restart the Classification Center server
after you modify this value. 
To review documents: