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Using Natural Language Processing to Explore Patient Perspectives on AI Avatars in Support Materials for Patients With Breast Cancer: Survey Study

Using Natural Language Processing to Explore Patient Perspectives on AI Avatars in Support Materials for Patients With Breast Cancer: Survey Study

Keywords were identified using TF-IDF [50], implemented with the TFidf Vectorizer from the scikit-learn Python library [55] using the following formula: where tfi,j is the frequency of i (the word) in j (sentences belonging to the topic in question), and dfi is the number of documents (sentences) containing i across all sentences.

Eleanor Cheese, Raouef Ahmed Bichoo, Kartikae Grover, Dorin Dumitru, Alexandros Zenonos, Joanne Groark, Douglas Gibson, Rebecca Pope

J Med Internet Res 2025;27:e70971