While working with data scientists, I have realized that expert data scientists spend almost 80% of their time doing feature engineering because it’s a time-consuming and difficult process, yet important step for building accurate models. …

The major concern while training your neural network or any machine learning model is to avoid overfitting. The model will not be accurate enough if it is overfitting because it is trying too hard to capture the noise present in the training dataset. The noise are the data points that…

We have all seen a bizarre time, thanks to COVID-19, over the last one and a half years. With the second wave of the virus hitting us like a storm, India had seen one of the worst phases of all time. …

SQL stands for Structured Query Language and is used to access and manipulate the database. RDBMS stands for Relational Database Management System. It is the basis for SQL, and for database systems such as MS SQL Server, Oracle, MySQL, and Microsoft Access. In RDBMS, the data is stored in database…

MongoDB is a rich open-source document-oriented and one of the widely recognised NoSQL database. It is written in C++ programming language. Today, I wanted to share some of the basic stuff about MongoDB concepts and commands Important Terms Database Database is a physical container for collections. Each database gets its own set of…

Introduction Learning can be defined as acquiring knowledge or skills through experience, study, or by being taught. So, Machine Learning can be defined as a phenomenon where a machine can be taught or it learns on its own without being explicitly programmed. Definition Wikipedia has defined deep learning as: Deep learning is…

What is a Distributed System? Have you ever wondered how Facebook stores and serves thousands of petabytes of user content such as photos, videos, likes, etc.? Have you ever gotten intrigued by how you can upload your photo or video on Instagram, and your followers can view the same instantly on their feeds? …

Cluster is a group of objects which have similar properties and belong to the same class. — What is Clustering? Clustering is an unsupervised learning technique which is used to make clusters of objects i.e. it is a technique to group objects of similar kind in a group. In clustering, we first partition the set of data into groups based on the similarity and then assign the labels to those…

Hadoop? The heartbeat of big data? Yeah, you read it right. Hadoop is an open source framework written in Java which is generally used to process and store big data in a distributed environment using easy and simple programming models. Before diving into hadoop, let’s discuss what’s big data exactly. What is Big Data? …