How can I use math formula node for computing TF*IDF ?

Hi,

I'm new to Knime. I wanna compute TF-IDF using math formula node  but I dont know how it works.

Please help me to make the formula.

Thanks,

 

Hi,

Do you mean something like in the workflow in attachment ?

Best regards 

Fabien

Hi Fabience

Yes, exactly! thanks.

How can I increase the accuracy of my model? My model is a kind of classification problem and decision tree algorithm have been used.

regards,

Pegah

 

Hi Pegah,

please see thread http://tech.knime.org/forum/knime-textprocessing/i-wanna-increase-the-accuracy-of-my-classification-model-what-should-i-do about model accuracy.

Cheers, Kilian