Chapter 1. Knowledge Graphs in Recommender Systems -- Chapter 2. Cyberbullying Detection on Social Media using SVM -- Chapter 3. Ultraviolet Radiation in Healthcare Applications: A Decades-old Game Changer Technology in COVID'19 -- Chapter 4. Multi-agent Ludo Game Collaborative Path Planning based on Markov Decision Process -- Chapter 5. An Analysis of Epileptic Seizure Detection and Classification using Machine Learning based Artificial Neural Network -- Chapter 6. Improving Image Resolution On Surveillance Images using SRGAN -- Chapter 7. Smart City: Recent Advances and Research Issues -- Chapter 8. HOUSEN: Hybrid Over-Under Sampling and Ensemble Approach for Imbalance Classification -- Chapter 9. E-Pro: Euler Angle and Probabilistic Model for Face Detection and Recognition -- Chapter 10. Classification of Covid-19 Tweets Using Deep Learning Techniques -- Chapter 11. Applied Classification Algorithms used in Data Mining During the Vocational Guidance Process in Machine Learning -- Chapter 12. Meta-heuristic Algorithm for the Global Optimization: Intelligent Ice Fishing Algorithm -- Chapter 13. Progression of EEG-BCI Classification Techniques : A Study -- Chapter 14. Cuckoo Scheduling Algorithm for Lifetime Optimization in Sensor Networks of IoT -- Chapter 15. Design & Development of an Automated Snack Maker with CNN based Quality Monitoring.