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Overcoming Model Bias for Robust Offline Deep Reinforcement Learning

arXiv.org Machine Learning

State-of-the-art reinforcement learning algorithms mostly rely on being allowed to directly interact with their environment to collect millions of observations. This makes it hard to transfer their success to industrial control problems, where simulations are often very costly or do not exist, and exploring in the real environment can potentially lead to catastrophic events. Recently developed, model-free, offline algorithms, can learn from a single dataset by mitigating extrapolation error in value functions. However, the robustness of the training process is still comparatively low, a problem known from methods using value functions. To improve robustness and stability of the learning process, we use dynamics models to assess policy performance instead of value functions, resulting in MOOSE (MOdel-based Offline policy Search with Ensembles), an algorithm which ensures low model bias by keeping the policy within the support of the data. We compare MOOSE with state-of-the-art model-free, offline RL algorithms BEAR and BCQ on the Industrial Benchmark and Mujoco continuous control tasks in terms of robust performance, and find that MOOSE outperforms its model-free counterparts in almost all considered cases, often even by far.


Machine Learning Classification Bootcamp in Python

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Free Coupon Discount - Build 10 Practical Projects and Advance Your Skills in Machine Learning Using Python and Scikit Learn Created by Dr. Ryan Ahmed, Ph.D., MBA, Kirill Eremenko, Hadelin de Ponteves, Mitchell Bouchard, SuperDataScience Team Students also bought Machine Learning A-Z: Hands-On Python & R In Data Science Python for Data Science and Machine Learning Bootcamp Machine Learning, Data Science and Deep Learning with Python Machine Learning with Javascript A Beginner's Guide To Machine Learning with Unity Preview this Udemy Course GET COUPON CODE Description Are you ready to master Machine Learning techniques and Kick-off your career as a Data Scientist?! You came to the right place! Machine Learning skill is one of the top skills to acquire in 2019 with an average salary of over $114,000 in the United States according to PayScale! The total number of ML jobs over the past two years has grown around 600 percent and expected to grow even more by 2020. This course provides students with knowledge, hands-on experience of state-of-the-art machine learning classification techniques such as Logistic Regression Decision Trees Random Forest Naïve Bayes Support Vector Machines (SVM) In this course, we are going to provide students with knowledge of key aspects of state-of-the-art classification techniques.


Deep Learning: Advanced Computer Vision (GANs, SSD, +More!)

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Free Coupon Discount - VGG, ResNet, Inception, SSD, RetinaNet, Neural Style Transfer, GANs More in Tensorflow, Keras, and Python Created by Lazy Programmer Inc. Students also bought Advanced AI: Deep Reinforcement Learning in Python Deep Learning: Convolutional Neural Networks in Python Cutting-Edge AI: Deep Reinforcement Learning in Python Complete Guide to TensorFlow for Deep Learning with Python PyTorch for Deep Learning with Python Bootcamp Preview this Udemy Course GET COUPON CODE Description Latest update: Instead of SSD, I show you how to use RetinaNet, which is better and more modern. I show you both how to use a pretrained model and how to train one yourself with a custom dataset on Google Colab. This is one of the most exciting courses I've done and it really shows how fast and how far deep learning has come over the years. When I first started my deep learning series, I didn't ever consider that I'd make two courses on convolutional neural networks. I think what you'll find is that, this course is so entirely different from the previous one, you will be impressed at just how much material we have to cover.


Deep Learning for Beginners in Python: Work On 12+ Projects

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Get Coupon Code Hot & New What you'll learn Complete Understanding of Deep Learning from the Scratch Building the Artificial Neural Networks (ANNs) from the Scratch Artificial Neural Networks (ANNs) for Binary Data Classification Building Convolutional Neural Networks from the Scratch Convolutional Neural Network for Image Classification Convolutional Neural Network for Digit Recognition Breast Cancer Detection with Convolutional Neural Networks Convolutional Neural Networks for Predictive Analysis Convolutional Neural Networks for Fraud Detection Building the Recurrent Neural Networks (ANNs) from Scratch Review Classification with LSTM and GRU LSTM and GRU for Image Classification Prediction of Google Stock Price with RNN and LSTM Natural Language Processing Crash Course on Numpy (Data Analysis) Crash Course on Pandas (Data Analysis) Crash course on Matplotlib (Data Visualization) Description The Artificial Intelligence and Deep Learning are growing exponentially in today's world. There are multiple application of AI and Deep Learning like Self Driving Cars, Chat-bots, Image Recognition, Virtual Assistance, ALEXA, so on... With this course you will understand the complexities of Deep Learning in easy way, as well as you will have A Complete Understanding of Googles TensorFlow 2.0 Framework TensorFlow 2.0 Framework has amazing features that simplify the Model Development, Maintenance, Processes and Performance In TensorFlow 2.0 you can start the coding with Zero Installation, whether you're an expert or a beginner, in this course you will learn an end-to-end implementation of Deep Learning Algorithms List of the Projects that you will work on, Part 1: Artificial Neural Networks (ANNs) Project 1: Multiclass image classification with ANN Project 2: Binary Data Classification with ANN Part 2: Convolutional Neural Networks (CNNs) Project 3: Object Recognition in Images with CNN Project 4: Binary Image Classification with CNN Project 5: Digit Recognition with CNN Project 6: Breast Cancer Detection with CNN Project 7: Predicting the Bank Customer Satisfaction Project 8: Credit Card Fraud Detection with CNN Part 3: Recurrent Neural Networks (RNNs) Project 9: IMDB Review Classification with RNN - LSTM Project 10: Multiclass Image Classification with RNN - LSTM Project 11: Google Stock Price Prediction with RNN and LSTM Part 4: Transfer Learning Part 5: Natural Language Processing Basics of Natural Language Processing Project 12: Movie Review Classifivation with NLTK Part 6: Data Analysis and Data Visualization Crash Course on Numpy (Data Analysis) Crash Course on Pandas (Data Analysis) Crash course on Matplotlib (Data Visualization)


How to Learn Machine Learning and Deep Learning: a guide for Software Engineers - Renan Moura

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Jeremy Howard goes super practical on the missing piece in Ng's course covering a topic that is, for many classical problems, the best solution out there. Fast.ai's approach is what is called Top-Down, meaning they show you how to solve the problem and then explain why it worked, which is the total opposite of what we are used to in school. Jeremy also uses real-world tools and libraries, so you learn by coding in industry-tested solutions. The reason why we are all here, Deep Learning! Again, the best resource for it is Professor Ng's course, actually, a series of courses.


Artificial Intelligence For Managers

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Artificial Intelligence For Managers Getting Started Non-Coding Approach To Learn and Apply Artificial Intelligence, Machine Leaning and Deep Learning for Managers Udemy Coupon Coding New What you'll learn Understand the Basic Terminologies of AI, Machine Learning and Deep Learning Develop AI Models, Without writing a single line of code, using platforms and tools developed by Google, Microsoft and Amazon Understand the step by step approach to solve machine learning problems In Depth Discussion of various fields of AI and It Applications Understand AI algorithms and how to select one Learn how to train and tune models for optimal performance Learn What is Big Data and its importance Requirements You do not need any prior experience in AI Having basic understanding school level mathematical concepts will be useful Description AI for Managers, will help you develop AI Skills, with an objective to apply these skills at your organisation or business. Along with learning the basics, you will be learning how to build AI models from the scratch, using Non Coding Tools developed by Microsoft Azure and Google Cloud Platform and more. After you have completed the tutorials, you will have developed 4 deep learning & machine learning projects without writing a single line of code. We will explore the domains in which AI is being used and help you develop an understanding of how the logic of it works. We are going to introduce you to the core skills that will get you a foot in the door.


How chatbots will foster classroom engagement

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It's indisputable that technology has changed the way we access information, how we learn, and how we choose what to learn. We're on the verge of a new era; an era defined by Artificial Intelligence (AI), Machine Learning (ML), and hyper-personalization, which will further improve the quality of our education. Chatbots, a technology adjacent to AI, are among the top contenders for entering classrooms and engaging students. In this article, we'll take a look at the ways chatbots can influence the quality of education and classroom engagement all over the world. It is projected that by 2020, chatbots will start playing a significant role in the workflow of HR departments as well as growing sales and revenue for businesses.


Top Online Masters in Analytics, Business Analytics, Data Science – Updated - KDnuggets

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The current pandemic has profoundly changed many things, but the demand for AI and Data Science education has not decreased. What has changed is that move to online education has accelerated. Many more universities now offer online degrees, including in AI, Data Science, and Machine Learning, so we have limited this directory mostly to universities that have Top Universities CS Rankings. Many thanks to Asel Mendis for collecting most of the data used in this blog. We published a similar list in 2017 and in 2019.


Artificial Intelligence versus Maya Angelou: Experimental evidence that people cannot differentiate AI-generated from human-written poetry

arXiv.org Artificial Intelligence

The release of openly available, robust natural language generation algorithms (NLG) has spurred much public attention and debate. One reason lies in the algorithms' purported ability to generate human-like text across various domains. Empirical evidence using incentivized tasks to assess whether people (a) can distinguish and (b) prefer algorithm-generated versus human-written text is lacking. We conducted two experiments assessing behavioral reactions to the state-of-the-art Natural Language Generation algorithm GPT-2 (Ntotal = 830). Using the identical starting lines of human poems, GPT-2 produced samples of poems. From these samples, either a random poem was chosen (Human-out-of-the-loop) or the best one was selected (Human-in-the-loop) and in turn matched with a human-written poem. In a new incentivized version of the Turing Test, participants failed to reliably detect the algorithmically-generated poems in the Human-in-the-loop treatment, yet succeeded in the Human-out-of-the-loop treatment. Further, people reveal a slight aversion to algorithm-generated poetry, independent on whether participants were informed about the algorithmic origin of the poem (Transparency) or not (Opacity). We discuss what these results convey about the performance of NLG algorithms to produce human-like text and propose methodologies to study such learning algorithms in human-agent experimental settings.


Imbalanced Continual Learning with Partitioning Reservoir Sampling

arXiv.org Artificial Intelligence

Continual learning from a sequential stream of data is a crucial challenge for machine learning research. Most studies have been conducted on this topic under the single-label classification setting along with an assumption of balanced label distribution. This work expands this research horizon towards multi-label classification. In doing so, we identify unanticipated adversity innately existent in many multi-label datasets, the long-tailed distribution. We jointly address the two independently solved problems, Catastropic Forgetting and the long-tailed label distribution by first empirically showing a new challenge of destructive forgetting of the minority concepts on the tail. Then, we curate two benchmark datasets, COCOseq and NUS-WIDEseq, that allow the study of both intra- and inter-task imbalances. Lastly, we propose a new sampling strategy for replay-based approach named Partitioning Reservoir Sampling (PRS), which allows the model to maintain a balanced knowledge of both head and tail classes. We publicly release the dataset and the code in our project page.