Title	Term Frequency-Inverse Document Frequency (TF-IDF) Technique Using Principal Component Analysis (PCA) with Naive Bayes Classification
Author	J.Uma and Dr.K.Prabha
Citation	Vol. 24  No. 4  pp. 113-118
Keywords	Feature Extraction, Term Frequency-Inverse Document Frequency, Principal Component Analysis, Na?ve Bayes Classification Algorithm.

Title	Enhancing Robustness in Medical Question Answering Systems with Novel Defense Models against Adversarial Attacks
Author	Atrab A. Abd El-Aziz, Reda A El-Khoribi, and Nour Eldeen Khalifa
Citation	Vol. 26  No. 4  pp. 25-42
Keywords	Adversarial Attacks, BERT, Medical Question Answer (MQA), Term Frequency-Inverse Document Frequency (TFIDF).