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Building Sentiment Predictor - Deep Learning

Sentiment analysisSentimentMachine learningSupervised learningRNN
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VersionWorkflow created in KAP v5.4Latest, created on 
Mar 25, 2025 11:45 PM
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Building a Sentiment Analysis Predictive Model - Deep Learning using an RNN

This workflow uses a Kaggle Dataset (https://www.kaggle.com/crowdflower/twitter-airline-sentiment) including thousands of customer social media posts towards six US airlines. Contributors annotated the valence of the tweets as positive, negative and neutral. Once users are satisfied with the model evaluation, they should export (1) the Dictionary, (2) the Category to Number Model, and (3) the Trained Network for deployment in non-annotated data.

This workflow is tailored for Windows. If you run it on another system, you may have to (1) adapt the environment of the Conda Environment Propagation node and (2) make sure that the Keras Embedding Layer node has the right number of units, which depends on the native encoding of the system and is indicated in the CSV Reader node.

If you use this workflow, please cite: 
F. Villaroel Ordenes & R. Silipo, “Machine learning for marketing on the KNIME Hub: The development of a live repository for marketing applications”, Journal of Business Research 137(1):393-410, DOI: 10.1016/j.jbusres.2021.08.036.

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Used extensions & nodes

Created with KNIME Analytics Platform version 5.3.3
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    KNIME Base nodesTrusted extension

    KNIME AG, Zurich, Switzerland

    Versions 5.3.2, 5.3.3

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    KNIME Column Expressions (Labs)Trusted extension

    KNIME AG, Zurich, Switzerland

    Version 5.3.0

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    knime
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    KNIME Conda IntegrationTrusted extension

    KNIME AG, Zurich, Switzerland

    Version 5.3.3

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    knime
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    KNIME Data GenerationTrusted extension

    KNIME AG, Zurich, Switzerland

    Version 5.3.0

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    knime
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    KNIME Deep Learning - Keras IntegrationTrusted extension

    KNIME AG, Zurich, Switzerland

    Version 5.3.0

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