A Gentle Introduction to Imbalanced #Classification
After completing this tutorial, you will know:
* Imbalanced classification is the problem of classification when there is an unequal distribution of classes in the training dataset.
* The imbalance in the class distribution may vary, but a severe imbalance is more challenging to model and may require specialized techniques.
* Many real-world classification problems have an imbalanced class distribution, such as fraud detection, spam detection, and churn prediction.
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🔭 @DeepGravity
After completing this tutorial, you will know:
* Imbalanced classification is the problem of classification when there is an unequal distribution of classes in the training dataset.
* The imbalance in the class distribution may vary, but a severe imbalance is more challenging to model and may require specialized techniques.
* Many real-world classification problems have an imbalanced class distribution, such as fraud detection, spam detection, and churn prediction.
Link
🔭 @DeepGravity
Machine Learning Mastery
A Gentle Introduction to Imbalanced Classification
Classification predictive modeling involves predicting a class label for a given observation. An imbalanced classification problem is an example of a classification problem where the distribution of examples across the known classes is biased or skewed. The…
Deep Gravity pinned «Our reinforcement learning architect designs have been just published on #NeurIPS2019 AI Art Gallery: https://lnkd.in/dFZ37BN Seems it draws like a baby now, but is growing and hopefully would be a skillful #RL artist very soon. #reinforcementlearning…»
5 #Financial Services Tech Trends to Watch in 2020
1. The Role of #ArtificialIntelligence in Finance Will Expand
2. Financial Services Firms Will Grow Their Use of #Data Analytics
3. #Blockchain Will Be a Key Security Solution
4. More #Bank Branches Will Undergo Digital Transformations
5. Automation Will Take Over More Financial Services
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1. The Role of #ArtificialIntelligence in Finance Will Expand
2. Financial Services Firms Will Grow Their Use of #Data Analytics
3. #Blockchain Will Be a Key Security Solution
4. More #Bank Branches Will Undergo Digital Transformations
5. Automation Will Take Over More Financial Services
Link
🔭 @DeepGravity
Technology Solutions That Drive Business
5 Financial Services Tech Trends to Watch in 2020
AI, blockchain and automation are among the trends poised to alter the financial services industry.
Inside #DeepMind 's epic mission to solve science's trickiest problem
DeepMind's AI has beaten chess grandmasters and #Go champions. But founder and CEO Demis Hassabis now has his sights set on bigger, real-world problems that could change lives
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DeepMind's AI has beaten chess grandmasters and #Go champions. But founder and CEO Demis Hassabis now has his sights set on bigger, real-world problems that could change lives
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🔭 @DeepGravity
WIRED
Inside DeepMind's epic mission to solve science's trickiest problem
DeepMind's AI has beaten chess grandmasters and Go champions. But founder and CEO Demis Hassabis now has his sights set on bigger, real-world problems that could change lives. First up: protein folding
Explaining #ReinforcementLearning: Active vs Passive
We examine the required elements to solve an RL problem, compare passive and active reinforcement learning, and review common active and passive RL techniques.
Article
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We examine the required elements to solve an RL problem, compare passive and active reinforcement learning, and review common active and passive RL techniques.
Article
🔭 @DeepGravity
KDnuggets
Explaining Reinforcement Learning: Active vs Passive - KDnuggets
We examine the required elements to solve an RL problem, compare passive and active reinforcement learning, and review common active and passive RL techniques.
Prediction of Physical Load Level by #MachineLearning Analysis of Heart Activity after Exercises
Paper
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Paper
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Triple #GenerativeAdversarialNetworks
Generative adversarial networks (GANs) have shown promise in image generation and classification given limited supervision. Existing methods extend the unsupervised GAN framework to incorporate supervision heuristically. Specifically, a single discriminator plays two incompatible roles of identifying fake samples and predicting labels and it only estimates the data without considering the labels. The formulation intrinsically causes two problems: (1) the generator and the discriminator (i.e., the classifier) may not converge to the data distribution at the same time; and (2) the generator cannot control the semantics of the generated samples. In this paper, we present the triple generative adversarial network (Triple-GAN), which consists of three players—a generator, a classifier, and a discriminator. The generator and the classifier characterize the conditional distributions between images and labels, and the discriminator solely focuses on identifying fake image-label pairs. We design compatible objective functions to ensure that the distributions characterized by the generator and the classifier converge to the data distribution. We evaluate Triple-GAN in two challenging settings, namely, semi-supervised learning and the extreme low data regime. In both settings, Triple-GAN can achieve state-of-the-art classification results among deep generative models and generate meaningful samples in a specific class simultaneously.
Paper
🔭 @DeepGravity
Generative adversarial networks (GANs) have shown promise in image generation and classification given limited supervision. Existing methods extend the unsupervised GAN framework to incorporate supervision heuristically. Specifically, a single discriminator plays two incompatible roles of identifying fake samples and predicting labels and it only estimates the data without considering the labels. The formulation intrinsically causes two problems: (1) the generator and the discriminator (i.e., the classifier) may not converge to the data distribution at the same time; and (2) the generator cannot control the semantics of the generated samples. In this paper, we present the triple generative adversarial network (Triple-GAN), which consists of three players—a generator, a classifier, and a discriminator. The generator and the classifier characterize the conditional distributions between images and labels, and the discriminator solely focuses on identifying fake image-label pairs. We design compatible objective functions to ensure that the distributions characterized by the generator and the classifier converge to the data distribution. We evaluate Triple-GAN in two challenging settings, namely, semi-supervised learning and the extreme low data regime. In both settings, Triple-GAN can achieve state-of-the-art classification results among deep generative models and generate meaningful samples in a specific class simultaneously.
Paper
🔭 @DeepGravity
Hyperparameter Tuning On #Google Cloud Platform With #Scikit_Learn
Google Cloud Platform’s AI Platform (formerly ML Engine) offers a hyperparameter tuning service for your models. Why should you take the extra time and effort to learn how to use it instead of just running the code you already have on a virtual machine? Are the benefits worth the extra time and effort?
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Google Cloud Platform’s AI Platform (formerly ML Engine) offers a hyperparameter tuning service for your models. Why should you take the extra time and effort to learn how to use it instead of just running the code you already have on a virtual machine? Are the benefits worth the extra time and effort?
Link
🔭 @DeepGravity
Medium
Hyperparameter Tuning On Google Cloud Platform With Scikit-Learn
Google Cloud Platform’s AI Platform (formerly ML Engine) offers a hyperparameter tuning service for your models. Why should you take the…
Neural #Quantum States
How #neuralnetworks can solve highly complex problems in quantum mechanics
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How #neuralnetworks can solve highly complex problems in quantum mechanics
Article
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Medium
Neural Quantum States
How neural networks can solve highly complex problems in quantum mechanics
Automating Pac-man with #DeepQLearning: An Implementation in #Tensorflow.
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#DeepReinforcementLearning
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#DeepReinforcementLearning
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Medium
Automating Pac-man with Deep Q-learning: An Implementation in Tensorflow.
Fundamentals of Reinforcement Learning
Improving Out-of-Distribution Detection in #MachineLearning Models
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#Google Research
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#Google Research
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Google AI Blog
Improving Out-of-Distribution Detection in Machine Learning Models
Posted by Jie Ren, Research Scientist, Google Research and Balaji Lakshminarayanan, Research Scientist, DeepMind Successful deployment o...
secml: A #Python Library for Secure and Explainable #MachineLearning
We present secml, an open-source Python library for secure and explainable machine learning. It implements the most popular attacks against machine learning, including not only test-time evasion attacks to generate adversarial examples against deep neural networks, but also training-time poisoning attacks against support vector machines and many other algorithms. These attacks enable evaluating the security of learning algorithms and of the corresponding defenses under both white-box and black-box threat models. To this end, secml provides built-in functions to compute security evaluation curves, showing how quickly classification performance decreases against increasing adversarial perturbations of the input data. secml also includes explainability methods to help understand why adversarial attacks succeed against a given model, by visualizing the most influential features and training prototypes contributing to each decision. It is distributed under the Apache License 2.0, and hosted at https://gitlab.com/secml/secml.
Paper
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We present secml, an open-source Python library for secure and explainable machine learning. It implements the most popular attacks against machine learning, including not only test-time evasion attacks to generate adversarial examples against deep neural networks, but also training-time poisoning attacks against support vector machines and many other algorithms. These attacks enable evaluating the security of learning algorithms and of the corresponding defenses under both white-box and black-box threat models. To this end, secml provides built-in functions to compute security evaluation curves, showing how quickly classification performance decreases against increasing adversarial perturbations of the input data. secml also includes explainability methods to help understand why adversarial attacks succeed against a given model, by visualizing the most influential features and training prototypes contributing to each decision. It is distributed under the Apache License 2.0, and hosted at https://gitlab.com/secml/secml.
Paper
🔭 @DeepGravity
GitLab
Secure Machine Learning / SecML · GitLab
A Python library for Secure and Explainable Machine Learning Documentation available @ https://secml.gitlab.io Follow us on Twitter @
A Gentle Introduction to #ProbabilityDensityEstimation
After completing this tutorial, you will know:
* Histogram plots provide a fast and reliable way to visualize the probability density of a data sample.
* Parametric probability density estimation involves selecting a common distribution and estimating the parameters for the density function from a data sample.
* Nonparametric probability density estimation involves using a technique to fit a model to the arbitrary distribution of the data, like kernel density estimation.
Link
🔭 @DeepGravity
After completing this tutorial, you will know:
* Histogram plots provide a fast and reliable way to visualize the probability density of a data sample.
* Parametric probability density estimation involves selecting a common distribution and estimating the parameters for the density function from a data sample.
* Nonparametric probability density estimation involves using a technique to fit a model to the arbitrary distribution of the data, like kernel density estimation.
Link
🔭 @DeepGravity
Machine Learning Mastery
A Gentle Introduction to Probability Density Estimation
Probability density is the relationship between observations and their probability. Some outcomes of a random variable will have low probability density and other outcomes will have a high probability density. The overall shape of the probability density…