--- title: "vaibhav kumar (@vaibhavkumar) | Hashnode" description: "Maths | Julia | Python | Engineering. Read the latest articles by vaibhav kumar on Hashnode." url: "https://hashnode.com/@vaibhavkumar" --- @vaibhavkumar # vaibhav kumar @vaibhavkumar · India · Joined December 2020 Maths | Julia | Python | Engineering ### [Introduction to Stacks and Queues](https://vaibhavkumar.hashnode.dev/introduction-to-stacks-and-queues?utm_source=hashnode&utm_medium=feed) Stack A stack is an ordered list (Data Structure) in which all insertion and deletion are done at one end. It is a First In Last Out (FILO). Top is a pointer pointing to the top most element of the stack. Applications of Stack Recursion Post fix ev... 2 min read · [vaibhavkumar.hashnode.dev](https://vaibhavkumar.hashnode.dev/introduction-to-stacks-and-queues?utm_source=hashnode&utm_medium=feed) [Jul 11, 2021](https://hashnode.com/posts/introduction-to-stacks-and-queues/60eae531c551f16b0f84ccef) ### [A new way of Scraping the Web: Requests-HTML](https://vaibhavkumar.hashnode.dev/a-new-way-of-scraping-the-web-requests-html?utm_source=hashnode&utm_medium=feed) Most of us when think about doing web scraping and HTML parsing using python, we use tools like beautiful-soup, scrapy, regular expressions etc. In this article, I will show you the basics of web scraping with Requests-HTML library, by Kenneth Reitz... 9 min read · [vaibhavkumar.hashnode.dev](https://vaibhavkumar.hashnode.dev/a-new-way-of-scraping-the-web-requests-html?utm_source=hashnode&utm_medium=feed) [1](https://hashnode.com/posts/a-new-way-of-scraping-the-web-requests-html/5ff8a517a538d00135153cfd) [Jan 8, 2021](https://hashnode.com/posts/a-new-way-of-scraping-the-web-requests-html/5ff8a517a538d00135153cfd) ### [Introduction to Image Classification using CNNs in PyTorch](https://vaibhavkumar.hashnode.dev/introduction-to-image-classification-using-cnns-in-pytorch?utm_source=hashnode&utm_medium=feed) In this article, we will learn about using CNNs in PyTorch. We will use the standard CIFAR10 dataset and perform image classification on it. Importing Libraries import torch import matplotlib.pyplot as plt import numpy as np Data loading import torc... 11 min read · [vaibhavkumar.hashnode.dev](https://vaibhavkumar.hashnode.dev/introduction-to-image-classification-using-cnns-in-pytorch?utm_source=hashnode&utm_medium=feed) [2](https://hashnode.com/posts/introduction-to-image-classification-using-cnns-in-pytorch/5fede0e4017ebb59232dd308) [Dec 31, 2020](https://hashnode.com/posts/introduction-to-image-classification-using-cnns-in-pytorch/5fede0e4017ebb59232dd308) ### [Feed Forward Networks using PyTorch](https://vaibhavkumar.hashnode.dev/feed-forward-networks-using-pytorch?utm_source=hashnode&utm_medium=feed) In this article, we will see in how many ways we can implement Feed Forword Neural Networks in PyTorch. For this we will be using a three neurons network that takes two input features and gives output through the last neuron as shown in fig. Importi... 8 min read · [vaibhavkumar.hashnode.dev](https://vaibhavkumar.hashnode.dev/feed-forward-networks-using-pytorch?utm_source=hashnode&utm_medium=feed) [Dec 29, 2020](https://hashnode.com/posts/feed-forward-networks-using-pytorch/5feb6bc5017ebb59232d9f0c) ### [Ridge Regression using Neural Network](https://vaibhavkumar.hashnode.dev/ridge-regression-using-neural-network?utm_source=hashnode&utm_medium=feed) In this article, we are going learn how to use ridge regression algorithm using neural networks and then compare the results we get with an RidgeRegressor model that comes built-in sklearn module. import numpy as np import matplotlib.pyplot as plt ... 7 min read · [vaibhavkumar.hashnode.dev](https://vaibhavkumar.hashnode.dev/ridge-regression-using-neural-network?utm_source=hashnode&utm_medium=feed) [Dec 29, 2020](https://hashnode.com/posts/ridge-regression-using-neural-network/5feb3bf6017ebb59232d9bf7)