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Statistical Learning

Linear Regression and Logistic Regression using R Studio


In this section we will learn - What does Machine Learning mean. What are the meanings or different terms associated with machine learning? You will see some examples so that you understand what machine learning actually is. It also contains steps involved in building a machine learning model, not just linear models, any machine learning model.

What Is Artificial Intelligence Engineering? Prospects, Opportunities, and Career Outlooks - ITChronicles


Research conducted by Gartner suggests that artificial intelligence or AI will create a business value of US $3.9 trillion by 2022. What's more, artificial intelligence is expected to be the most disruptive technology category for the next decade, due to advances in computing power, capacity, speed, and data diversity, along with the further evolution of deep neural networks (DNN). This growth is fueling a demand for talent in a number of related disciplines, including that of artificial intelligence engineering. But what is artificial intelligence engineering? Before answering that question, it's worth stepping back a little, to look at the evolution of artificial intelligence itself, and how it is enabling new ways of doing things that new require new skill sets to implement.

Principal Component Analysis (PCA)


During the Data mining process, we are given raw data. Before visualizing or interpreting data, we have to make sure that certain refinement methods are applied to the data before it is available for analysis. This refinement process includes Preprocessing or cleaning the data, such as removing the null or blank values from the data. Next is the Feature selection or Feature Extraction Technique, which is utilized in PCA where the least contributing features are neglected or removed as per requirement. The last stage is the Data Transformation, where the user will apply normalization techniques to scale all the features in the same range.

The Simpler Brother of OLS Regression for Machine Learning


Nonparametric's took me a while to get my head around. On the one hand, all I had ever studied involved making the formulae of a predictive model differentiable and optimizing in regards to the individual or set of parameters (think linear regression or GMM). On the other hand, the majority of the nonparametric methods were being used in classification (Random Forests, KNN, etc). But some of the best methods are nonparametric. They do not assume a particular family of distributions and try to select the best-fit ones, they make judgments without assuming a distribution. Keep up to date with my latest articles here!

Using NumPy To Optimize Object Detection


This is Part 4 of our ongoing series on NumPy optimization. In Parts 1 and 2 we covered the concepts of vectorization and broadcasting, and how they can be applied to optimize an implementation of the K-Means clustering algorithm. Next in the cue, Part 3 covered important concepts like strides, reshape, and transpose in NumPy. In this post, Part 4, we'll cover the application of those concepts to speed up a deep learning-based object detector: YOLO. Here are the links to the earlier parts for your reference.

Deep Learning Prerequisites: Linear Regression in Python


Online Courses Udemy Data science: Learn linear regression from scratch and build your own working program in Python for data analysis. Created by Lazy Programmer Inc. English [Auto-generated], Spanish [Auto-generated] Students also bought Artificial Intelligence: Reinforcement Learning in Python Data Science: Natural Language Processing (NLP) in Python Natural Language Processing with Deep Learning in Python Cluster Analysis and Unsupervised Machine Learning in Python Complete Python Bootcamp: Go from zero to hero in Python 3 Preview this course GET COUPON CODE Description This course teaches you about one popular technique used in machine learning, data science and statistics: linear regression. We cover the theory from the ground up: derivation of the solution, and applications to real-world problems. We show you how one might code their own linear regression module in Python. Linear regression is the simplest machine learning model you can learn, yet there is so much depth that you'll be returning to it for years to come.

Machine Learning Algorithms from Start to Finish in Python: Logistic Regression


Going back to our example, let's assume that the Lakers were having a terrible season(clearly not the case), and out of 20 games, they only won 1. so the odds to the Lakers winning would be: We can make a simple observation: the worse they play, the more close their odds of winning will be to 0. Concretely, when the odds are against them winning, then the odds will range between 0 and 1. Now let's look at the opposite. In other words, when the odds are for the Lakers winning, they begin at 1 and they can go all the way up to infinity. Clearly, there is a problem here. This asymmetry makes it hard to compare the odds for or against Lakers winning.

Digital Healthcare in Latin America

Communications of the ACM

The healthcare system in Latin America (LATAM) has made significant improvements in the last few decades. Nevertheless, it still faces significant challenges, including poor access to healthcare services, insufficient resources, and inequalities in health that may lead to decreased life expectancy, lower quality of life, and poor economic growth. Digital Healthcare (DH) enables the convergence of innovative technology with recent advances in neuroscience, medicine, and public healthcare policy.a In this article, we discuss key DH efforts that can help address some of the challenges of the healthcare system in LATAM focusing on two countries: Brazil and Mexico. We chose to study DH in the context of Brazil and Mexico as both countries are good representatives of the situation of the healthcare system in LATAM and face similar challenges along with other LATAM countries. Brazil and Mexico have the largest economies in the region and account for approximately half of the population and geographic territory of LATAM.11

A Complete Guide to Linear Regression for Beginners - Let's Discuss Stuff


Linear Regression is the most simple, easily understandable, and widely used supervised regression model. In supervised learning, you have an input-output pair. And you will try to map the given input to output by training the input-output pair. Another type of machine learning algorithm is unsupervised learning, in this, you don't have an output variable. You will try to group the input variables by their similarities.

Supply chain pros embrace AI for forecasting, inventory despite limitations during pandemic


Supply chain professionals are optimistic about the potential for artificial intelligence within their operations, but they have also struggled with the technology during the coronavirus pandemic, according to a survey from Secondmind, which develops machine-learning applications for businesses. The survey (which polled more than 500 supply chain managers and planners using AI) found that 90% of respondents believe AI will transform supply chains for the better by 2025, while 82% have been frustrated by AI-powered decisions during the course of the pandemic. The discrepancy highlights potential barriers of AI while underscoring that professionals who have experienced these issues still see a future for the technology. AI is an umbrella term that can include many statistical or computer science techniques. Gary Brotman, vice president of product and marketing at Secondmind, said he views AI as a term for processes that allow a computer to do something that would traditionally be done by a person.