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How do I classify an already classified data in Rapidminer

baranbaran Member Posts: 5 Contributor I
edited November 2018 in Help

Hi everybody!


I made a text classification with Rapidminer. Now I need to categorize this classification again. How can I do that? Any idea?


For example: High school students are playing football.

The text is firstly classified as high "high school"

Now I need to classify it again as "football" in the same model like...

Students in high school and playin football


High school students are playin football = high school > football


Is it possible?

Thank you...



  • Thomas_OttThomas_Ott RapidMiner Certified Analyst, RapidMiner Certified Expert, Member Posts: 1,761   Unicorn

    Hi Baran,


    I had to move your post to the Getting Started Forum. Building Blocks is for people to share their RapidMiner Building Blocks. :)


    When you said you made a text classification in RapidMiner, was that from a data set that you label by yourself and then loaded into RapidMiner, or was their a model like Naive Bayes that autoclassified the text for you?

  • baranbaran Member Posts: 5 Contributor I

    Thank you Thomas for your concern...


    I load a training data and labeled myself... then used naive bayes to teach the machine. After that I load a test data, applied model to test data and got whether the model autoclassified the test data right or not. The result was perfect! Now I want to apply results of test data (the text) to a new classifier (with a new training data).

    For example.


    Text                                                                        Category I                    Category II

    High school students playing football                    High school                  Football

    College students playing football                           College                        Football

    University students playing basketball                   University                    Basketball


    I have two training data one is for category I and second is for category II.

    Can I see them in the same performance operator. Each column is saperate.


    Thanks again :)

  • Thomas_OttThomas_Ott RapidMiner Certified Analyst, RapidMiner Certified Expert, Member Posts: 1,761   Unicorn

    Hmm, having two sets of labels in two columns might not work.


    Can you merge them together into one column, like "highschool_football" and "College_football?"  You could do that with a Generate Attributes operator, just create a new label column and do something like [attribute1]_[attribute2] in the expressoin field. 

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