This workflow shows how to import text from a csv file, convert it to documents, preprocess the documents and transform them into numerical document vectors. Finally a predictive model is trained on the vectors to predict the sentiment class of the documents.
BLOG: Sentiment Classification of Documents http://www.knime.org/blog/sentiment-analysis
EXAMPLES Server: 08_Other_Analytics_Types/01_Text_Processing/03_Sentiment_Classification08_Other_Analytics_Types/01_Text_Processing/03_Sentiment_Classification*
Download a zip-archive
* Find more about the Examples Server here.
The link will open the workflow directly in KNIME Analytics Platform (requirements: Windows; KNIME Analytics Platform must be installed with the Installer version 3.2.0 or higher). In other cases, please use the link to a zip-archive or open the provided path manually