# Document Preprocessing with TF-IDF to Improve the Polarity Classification Performance of Unstructured Sentiment Analysis

> Research article (Kinetik Game Technology Information System Computer Network Computing Electronics and Control, 2020) · cited 23× · AI/ML

**Wikidata**: [openalex:W3082312505](https://www.wikidata.org/wiki/openalex:W3082312505)  
**Source**: https://4ort.xyz/entity/document-preprocessing-with-tf-idf-to-improve-the-polarity-classification-performance-of-unstructured-sentiment-analysis