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Statistical Learning


Gradient Descent, clearly explained in Python, Part 1: The troubling theory.

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If you have ever done a Kaggle competition, these would be commonly referred to as evaluation metrics. Typically, the lower the loss, the better the performance of your model. So if,for example, you were predicting house prices and using Mean Squared Error, and your cost was $25000, that means that your model is performing poorly as it is making a prediction error of $25000. Going back to our analogy, if you imagine that instead of a mountain there is a U-shaped curve, and instead of a person there is the cost function with maybe an initial cost value of 25,500. The aim of Gradient Descent would be to minimise this cost to either 0(global minimum), or something much smaller(local minimum).


All-in-One:Machine Learning,DL,NLP,AWS Deply [Hindi][Python]

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Online Courses Udemy - All-in-One:Machine Learning,DL,NLP,AWS Deply [Hindi][Python], Complete hands-on Machine Learning Course with Data Science, NLP, Deep Learning and Artificial Intelligence Created by Rishi Bansal English Students also bought Java from Zero to First Job: Part 1 - Java Basics and OOP C Programming for Beginners - Master the C Fundamentals Full-Stack Web Development For Beginners The Complete Java Programmer: From Scratch to Advanced Python and Django Full-Stack Web Development for beginners Learn To Create AI Assistant (JARVIS) With Python Preview this course GET COUPON CODE Description This course is designed to cover maximum Concept of Machine Learning. Anyone can opt for this course. No prior understanding of Machine Learning is required. As a Bonus Introduction Natural Language Processing and Deep Learning is included. Below Topics are covered Chapter - Introduction to Machine Learning - Machine Learning?


Understanding Naïve Bayes and Support Vector Machine and their implementation in Python

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This article was published as a part of the Data Science Blogathon. In this digital world, spam is the most troublesome challenge that everyone is facing. Sending spam messages to people causes various problems that may, in turn, cause economic losses. By spamming messages, we lose memory space, computing power, and speed. To remove these spam messages, we need to spend our time.


Mayurji/N2D-Pytorch

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Deep clustering has increasingly been demonstrating superiority over conventional shallow clustering algorithms. Deep clustering algorithms usually combine representation learning with deep neural networks to achieve this performance, typically optimizing a clustering and non-clustering loss. In such cases, an autoencoder is typically connected with a clustering network, and the final clustering is jointly learned by both the autoencoder and clustering network. Instead, we propose to learn an autoencoded embedding and then search this further for the underlying manifold. We study a number of local and global manifold learning methods on both the raw data and autoencoded embedding, concluding that UMAP in our framework is able to find the best clusterable manifold of the embedding.


Which machine learning / deep learning algorithm to use by problem type

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I like to approach algorithms from the perspective of problem solving. I created this list from a Mc Kinsey document (link below). Predict a sales lead's likelihood of closing Simple, low-cost way to classify images (eg, recognize land usage from satellite images for climate-change models).


Best Way to Learn Pandas

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This learner's guide will help you understand how to use the features of pandas for interactive data manipulation and analysis. This book is your ideal guide to learning about pandas, all the way from installing it to creating one- and two-dimensional indexed data structures, indexing and slicing-and-dicing that data to derive results, loading data from local and Internet-based resources, and finally creating effective visualizations to form quick insights. You start with an overview of pandas and NumPy and then dive into the details of pandas, covering pandas' Series and DataFrame objects, before ending with a quick review of using pandas for several problems in finance. With the knowledge you gain from this book, you will be able to quickly begin your journey into the exciting world of data science and analysis. Install pandas on Windows, Mac, and Linux using the Anaconda Python distribution Learn how pandas builds on NumPy to implement flexible indexed data Adopt pandas' Series and DataFrame objects to represent one- and two-dimensional data constructs Index, slice, and transform data to derive meaning from information Load data from files, databases, and web services Manipulate dates, times, and time series data Group, aggregate, and summarize data Visualize techniques for pandas and statistical data Adopt pandas' Series and DataFrame objects to represent one- and two-dimensional data constructs Adopt pandas' Series and DataFrame objects to represent one- and two-dimensional data constructs Michael Heydt is an independent consultant, educator, and trainer with nearly 30 years of professional software development experience, during which time, he focused on Agile software design and implementation using advanced technologies in multiple verticals, including media, finance, energy, and healthcare.


Blending Ensemble Machine Learning With Python

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Blending is an ensemble machine learning algorithm. It is a colloquial name for stacked generalization or stacking ensemble where instead of fitting the meta-model on out-of-fold predictions made by the base model, it is fit on predictions made on a holdout dataset. Blending was used to describe stacking models that combined many hundreds of predictive models by competitors in the $1M Netflix machine learning competition, and as such, remains a popular technique and name for stacking in competitive machine learning circles, such as the Kaggle community. In this tutorial, you will discover how to develop and evaluate a blending ensemble in python. Blending Ensemble Machine Learning With Python Photo by Nathalie, some rights reserved.


Linear Regression: Zero to Hero

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In this blog, we are going to discuss the most important algorithm in machine learning and deep learning Linear Regression. "In Linear Regression Our Main Task is to find the best fitted line" As we see on the plot above that the best-fitted line on the data points is L0. There can be more best-fitted lines on the data points like l1, and l2, etc. then the question is, how do we find the best-fitted line above all of them?? We calculate the distance of the line from each point in the graph then find the MSE. After that, whichever line gives us the minimum error, we choose that line as our best-fitted line. In the plot below, we are measuring the distance of L0 From all the points and then just finding the error and comparing it with other lines.


MARS: Multivariate Adaptive Regression Splines -- How to Improve on Linear Regression?

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Machine Learning is making huge leaps forward, with an increasing number of algorithms enabling us to solve complex real-world problems. This story is part of a deep dive series explaining the mechanics of Machine Learning algorithms. In addition to giving you an understanding of how ML algorithms work, it also provides you with Python examples to build your own ML models. Before we dive into the specifics of MARS, I assume that you are already familiar with Linear Regression. Looking at the algorithm's full name -- Multivariate Adaptive Regression Splines -- you would be correct to guess that MARS belongs to the group of regression algorithms used to predict continuous (numerical) target variables.


Predicting best quality of wine using Linear Regression and PyTorch

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In this notebook we will predict the best quality of the wine using PyTorch and linear regression. If you haven't checked out my previous blog on Linear Regression check this out . First of all lets import required libraries.. Now lets analyse our dataset.. its important to analyse to see what we are dealing with.. Training Dataset: The sample of data used to fit the model. The actual dataset that we use to train the model (weights and biases in the case of a Neural Network). The model sees and learns from this data.