sentiment analysis

Hello
I created a workflow that reads a csv file, pre-processes the documents and trains a model to predict the sentiment of movie reviews.
I get a good roc curve and an excellent final score.
At this point, how can I predict the sentiment of a new text??
thank you

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Hi,
if you have created a ROC curve that means you are already applying the model to previously unseen data, right? If you have built the ROC curve on your training data, that is a very bad approach as it tells you nothing about the model quality. So assuming you have applied the model to unseen data for your ROC curve, you’d have to use exactly the same approach to predict the sentiment of a new text.
Kind regards,
Alexander

Hi there @Reggina56,

if you are interested in model deployment maybe this link can help:
https://www.knime.com/blog/seven_modes_deployment

Br,
Ivan

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