About

Raju Kumar Mishra is a Kaggle Grandmaster, writer, consultant, and corporate trainer for Python, R, Ruby, Scala, data science, machine learning, deep learning, big data, mathematical modeling, data visualization, and AI. With over 14 years of relevant experience, he is passionate about exploring a vast amount of data, understanding trends, creating machine learning models, and sharing his knowledge with others. His education includes a Bachelor of Technology (B.Tech) from the Indian Institute of Technology Dhanbad and a Master of Technology (M. Tech) from the Indian Institute of Science (IISc) Bangalore. Raju has authored several publications and books, including Learning Functional Data Structures and Algorithms, PySpark Recipes: A Problem-Solution Approach with PySpark2, and PySpark SQL Recipes: With HiveQL, Dataframe and Graphframes. He has also earned multiple certifications, such as the Developer Certification for Apache Spark, Hortonworks Certified Apache Hadoop Java Developer, and Oracle Certified Associate for Java. In his current role as a freelancer, Raju serves as an external consultant and corporate trainer for data analysis, machine learning, and big data. He has created many machine learning models with high accuracy on Kaggle competitions and client datasets using R and Python. He has improved the accuracy of many machine learning models using ensemble techniques, feature extraction, and data transformations. He has become a Kaggle Grandmaster and developed time series models using SARIMA and SARIMAX and recommender systems using Multi-arm Bandit. Raju has worked in various companies, including Tata Steel and Oracle India Private Ltd, where he worked as a software developer and performance engineer, respectively. He has also managed development and services at Tata Steel, where he was responsible for improving coal production with improved safety and optimized cost. Raju's specialties include Hadoop, Sklearn, Pandas, Scipy, StatsModels, Time Series, Exploratory Data Analysis, PySPark, Spark, Big Data, Data analysis, Machine learning and data Mining, R programming, Rattle and R commander, Java J2ee, Python, Perl, MongoDB, Cassandra, C++ Matlab, GNU Octave, MPI (Message Passing Interface), VTK (Visualization Tool Kit), and many more. He has provided training on data science and big data to many major clients, including Target Bangalore, DASS Bangalore, Fiserv Bangalore, Koronos Noida, Expedia Gurugram,