There are many resources, free and paid, for learning data science. However, most of them are not really complete, and they have the wrong focus. The modern data scientist needs to be able to combine various skills, which not many courses take into account. First of all, a complete data scientist needs to know both machine learning and statistics. Also, familiarity with at least either R or Python (ideally both) is a must.

It is challenging to know how to best prepare image data when training a convolutional neural network. This involves both scaling the pixel values and use of augmentation techniques during both the training and evaluation of the model. Instead of testing a wide range of options, a useful shortcut is to consider the types of data preparation, train-time augmentation, and test-time augmentation used by state-of-the-art models that notably achieve the best performance on a challenging computer vision dataset, namely the Large Scale Visual Recognition Challenge, or ILSVRC, that uses the ImageNet dataset. In this tutorial, you will discover best practices for preparing and augmenting photographs for image classification tasks with convolutional neural networks. Best Practices for Preparing and Augmenting Image Data for Convolutional Neural Networks Photo by Mark in New Zealand, some rights reserved.

The problem at the heart of this tutorial consists in modeling the path choice behavior of network users. This problem has extensively been studied in transportation science and econometrics, where it is known as the route choice problem. In this literature, individuals' choice of paths are typically predicted from discrete choice models. The aim of this tutorial is to present this problem from the novel and more general perspective of inverse optimization, in order to describe the modeling approaches proposed in related research areas and thereby motivate the use of so-called recursive models. The latter have the advantage of predicting path choices without generating choice sets. In this paper, we contextualize discrete choice models as a probabilistic approach to an inverse shortest path problem with noisy data, highlighting that recursive discrete choice models in particular originate from viewing the inner shortest path problem as a parametric Markov Decision Process. We also illustrate through simple numerical examples that recursive models overcome issues associated with the path-based discrete choice models commonly found in the transportation literature.

A supervised learning algorithm searches over a set of functions $A \to B$ parametrised by a space $P$ to find the best approximation to some ideal function $f\colon A \to B$. It does this by taking examples $(a,f(a)) \in A\times B$, and updating the parameter according to some rule. We define a category where these update rules may be composed, and show that gradient descent---with respect to a fixed step size and an error function satisfying a certain property---defines a monoidal functor from a category of parametrised functions to this category of update rules. This provides a structural perspective on backpropagation, as well as a broad generalisation of neural networks.

The cyberspace and the development of new technologies, especially intelligent systems using artificial intelligence, present enormous challenges to computer professionals, data scientists, managers and policy makers. There is a need to address professional responsibility, ethical, legal, societal, and policy issues. This paper presents problems and issues relevant to computer professionals and decision makers and suggests a curriculum for a course on ethics, law and policy. Such a course will create awareness of the ethics issues involved in building and using software and artificial intelligence.

Multi-armed bandits a simple but very powerful framework for algorithms that make decisions over time under uncertainty. An enormous body of work has accumulated over the years, covered in several books and surveys. This book provides a more introductory, textbook-like treatment of the subject. Each chapter tackles a particular line of work, providing a self-contained, teachable technical introduction and a review of the more advanced results. The chapters are as follows: Stochastic bandits; Lower bounds; Bayesian Bandits and Thompson Sampling; Lipschitz Bandits; Full Feedback and Adversarial Costs; Adversarial Bandits; Linear Costs and Semi-bandits; Contextual Bandits; Bandits and Zero-Sum Games; Bandits with Knapsacks; Incentivized Exploration and Connections to Mechanism Design.

The Complete Machine Learning 2019 Python,Math Dummy To Pro by SkyHub Academy Start Machine Learning & Data Science era with Math, Python & Libraries like: SKlearn, Pandas, NumPy, Matplotlib & Gym machine learning is becoming a widely-used word on everybody's tongue, and this is reasonable as data is everywhere, and it needs something to get use of it and unleash its hidden secrets, and since humans' mental skills cannot withstand that amount of data, it comes the need to learn machines to do that for us. So we introduce to you the complete ML course that you need in order to get your hand on Machine Learning and Data Science, and you'll not have to go to other resources, as this ML course collects most of the knowledge that you'll need in your journey. What you'll learn Achieve the mastery in machine learning from simple linear regression to advanced reinforcement learning projects. Get a deeper intuition about different Machine Learning nomenclatures. Be able to manipulate different algorithms with the power of Mathematics.

The increasingly fast development cycle for online course contents, along with the diverse student demographics in each online classroom, make real-time student outcomes prediction an interesting topic for both industrial research and practical needs. In this paper, we tackle the problem of real-time student performance prediction in an on-going course using a domain adaptation framework. This framework is a system trained on labeled student outcome data from previous coursework but is meant to be deployed on another course. In particular, we introduce a GritNet architecture, and develop an unsupervised domain adaptation method to transfer a GritNet trained on a past course to a new course without any student outcome label. Our results for real Udacity student graduation predictions show that the GritNet not only generalizes well from one course to another across different Nanodegree programs, but also enhances real-time predictions explicitly in the first few weeks when accurate predictions are most challenging.

SDET/Test Architect Essentials -Road to Full stack QA by Rahul Shetty Advanced Tutorial to Learn essential skills needed to transform your career from QA Engineer to SDET/Test Architect The one and only Best "Full Stack QA tutorial" which touches up on technical challenges in every phase of Automation by providing smart solutions using latest technologies like Dockers, Jackson API, Jenkin Pipelines, Data Structures using Java Streams, Window batch Scripting, Database readers, GIt and many more!!!!!!!! After Successful course completion, you should be able to apply for any Test Architect /SDET positions or lead the Challenging Automation projects from Scratch Below are in detail Scenarios we are going to cover in this Tutorial Dockerization, integrating Selenium Grid with Docker, Building Json/Xml from database results, Parsing Json into Java objects with Jackson API, Jenkins pipeline Scripting for CI/CD, Dynamically monitoring Server Logs with Java, Windows Batch job scripting, Dataprovider to Excel Integration, Java streams, Lambda expreesions, GIT version control system and many more, What you'll learn Understand and Implement Docker to provide virtualization Environments for Automation Tests Build Json/Xml on fly from JDBC Query results with Jackson API and POJO implementation Build and execute Window batch Scripts for invoking Servers(Selenium/Protractor) Understand Jenkin pipelines scripting for CI/CD Complete knowledge on latest Java Streams and lambda expressions for Interview prep Parsing Json files into Java objects to feed into web Automation tests How to monitor server logs dynamically with java Integrating TestNG Data provider into excel for building robust Datadriven Automation Understanding GIT commands in depth versioncontrol Who this course is for: GET Udemy Discount 95% off SDET/Test Architect Essentials -Road to Full stack QA

This is the bite size course to learn R Programming for Machine Learning and Statistical Learning. In CRISP DM data mining process, machine learning is at the modeling and evaluation stage. You will need to know some R programming, and you can learn R programming from my "Create Your Calculator: Learn R Programming Basics Fast" course. You will learn R Programming for machine learning and you will be able to train your own prediction models with naive bayes, decision tree, knn, neural network, linear regression, and evaluate your models very soon after learning the course.