Code Adam Gradient Descent Optimization From Scratch

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Gradient descent is an optimization algorithm that follows the negative gradient of an objective function in order to locate the minimum of the function. A limitation of gradient descent is that a single step size (learning rate) is used for all input variables. Extensions to gradient descent like AdaGrad and RMSProp update the algorithm to […]

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MIT.nano’s Immersion Lab opens for researchers and students

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Facility within MIT.nano offers equipment and capabilities for visualizing data, creating immersive environments.

3 Books on Optimization for Machine Learning

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Optimization is a field of mathematics concerned with finding a good or best solution among many candidates. It is an important foundational topic required in machine learning as most machine learning algorithms are fit on historical data using an optimization algorithm. Additionally, broader problems, such as model selection and hyperparameter tuning, can also be framed […]

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Univariate Function Optimization in Python

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How to Optimize a Function with One Variable? Univariate function optimization involves finding the input to a function that results in the optimal output from an objective function. This is a common procedure in machine learning when fitting a model with one parameter or tuning a model that has a single hyperparameter. An efficient algorithm […]

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Researchers Use AI to Separate Conspiracy From Fact

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Researchers at UCLA have created a model to distinguish conspiracy theories from actual conspiracies which will possibly allow robots to differentiate between things like Pizzagate and Bridgegate in the future.

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A Gentle Introduction to Machine Learning Modeling Pipelines

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Applied machine learning is typically focused on finding a single model that performs well or best on a given dataset. Effective use of the model will require appropriate preparation of the input data and hyperparameter tuning of the model. Collectively, the linear sequence of steps required to prepare the data, tune the model, and transform […]

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Semi-Supervised Learning With Label Spreading

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Semi-supervised learning refers to algorithms that attempt to make use of both labeled and unlabeled training data. Semi-supervised learning algorithms are unlike supervised learning algorithms that are only able to learn from labeled training data. A popular approach to semi-supervised learning is to create a graph that connects examples in the training dataset and propagates […]

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Lessons in Failing to Apply Blockchain and AI to Combat COVID

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Blockchain tech is well suited to manage aspects of the fight against the coronavirus. Why hasn't it been used more?

Multinomial Logistic Regression With Python

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Multinomial logistic regression is an extension of logistic regression that adds native support for multi-class classification problems. Logistic regression, by default, is limited to two-class classification problems. Some extensions like one-vs-rest can allow logistic regression to be used for multi-class classification problems, although they require that the classification problem first be transformed into multiple binary […]

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Semi-Supervised Learning With Label Propagation

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Semi-supervised learning refers to algorithms that attempt to make use of both labeled and unlabeled training data. Semi-supervised learning algorithms are unlike supervised learning algorithms that are only able to learn from labeled training data. A popular approach to semi-supervised learning is to create a graph that connects examples in the training dataset and propagate […]

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