Chapter 1: Neuro-Fuzzy Logic Application in Speech Recognition -- Chapter 2: A Machine Learning Model for Predicting Covid-19 -- Chapter 3: Thyroid Disease Prediction using a Novel Classification Enhancing MLP and Random Forest Algorithms -- Chapter 4: Youtube Sentimental Analysis using a Combined Approach of KNN and K-Means Clustering Algorithm -- Chapter 5: Big Data Analytics: Hybrid Classification in Brain Images using BSO and SVM -- Chapter 6: Breast Cancer Detection using Hybrid Segmentation using FOA and FCM Clustering -- Chapter 7: Hybrid Optimization using CC and PSO in Cryptography Encryption for Medical Images -- Chapter 8: Boundary Element Method for Water Wave Interaction with Semi-circular Porous Wave Barriers Placed over Stepped Seabed -- Chapter 9: Fostering Stem Education Competency for Elementary Education Students at Universities of Pedagogy in Vietnam -- Chapter 10: Blockchain based E-Medical Data Storage for Privacy Protection. etc.