Title	Sentiment Analysis of COVID-19 Tweets: Impact of Pre-processing Step
Author	Rami Ayadi, Osama R.Shahin, Osama Ghorbel, Rayan Alanazi, and Anouar Saidi
Citation	Vol. 21  No. 3  pp. 206-211
Keywords	C.ovid-19, Sentiment Analysis, Covid-19 Tweets, SVM, KNN, pre-processing step, Arabic Language

Title	A Hybrid Machine Learning approach for Drug Repositioning
Author	Supriya Menon M, Pothuraju Rajarajeswari
Citation	Vol. 20  No. 12  pp. 217-223
Keywords	Ant Colony Optimization, K++ Means Clustering, KNN- approach

Title	ROBO DOC-Machine Learning Based Disease Diagnostic Aid
Author	Fayez Al Fayez
Citation	Vol. 20  No. 11  pp. 22-29
Keywords	K- Nearest Neighbor(KNN), Na?ve Bayes(NB), Protein- Protein Interactions(PPI), Reverse Engineering, genetic diseases.

Title	Computer-Aided Diagnosis to recognize Alzheimer Disease based on DECOC algorithm
Author	Mossaad Ben Ayed
Citation	Vol. 20  No. 6  pp. 166-170
Keywords	Alzheimer’s disease, Cortical thickness, ADAS, Gyrification index, kNN, SVM, DECOC