Chapter 1. An Intelligent Tracking Application for Post Pandemic.- Chapter 2. Investigation on the influence of English Expertise on non-native English-speaking Students' Scholastic Performance using Data Mining.- Chapter 3. Machine Learning Algorithms for Modelling Agroclimatic indices: A Review.- Chapter 4. Metal Insulator Metal based Stepped Impedance Square Ring Resonator Dual-Band Band Pass Filter.- Chapter 5. Covid-19 Spread Analysis.- Chapter 6. Social Media Anatomy of Text and Emoji in Expressions.- Chapter 7. Development of Machine Learning Model Using Least Square-Support Vector Machine, Differential Evolution and Back Propagation Neural Network to Detect Breast Cancer.- Chapter 8. Distributed and Decentralized Attribute based Access Control for Smart Health Care Data.- Chapter 9. Dynamic Node Identification Management in Hadoop Cluster using DNA.- Chapter 10. A Scientometric Inspection of Research Based on WordNet Lexical During 1995-2019.- Chapter 11. Sentiment Analysis of an Online Sentiment with text and slang using Lexicon approach.- Chapter 12. Fuzzy Logic Technique for Evaluation of Performance of Load Balancing Algorithms in MCC.- Chapter 13. Impact of Bio-Inspired Algorithms to Predict Heart Diseases.- Chapter 14. Structured Data Extraction using Machine Learning from Image of Unstructured Bills/Invoices.- Chapter 15. Parallel Enhanced Chaotic Model Based Integrity to Improve Security and Privacy on HDFS.