hyperparameter


tensorflow/lattice

@machinelearnbot

TensorFlow Lattice is a library that implements lattice based models which are fast-to-evaluate and interpretable (optionally monotonic) models, also known as interpolated look-up tables. It includes a collection of TensorFlow Lattice Estimators, which you can use like any TensorFlow Estimator, and it also includes lattices and piecewise linear calibration as layers that can be composed into custom models. Note that TensorFlow Lattice is not an official Google product. A lattice is an interpolated look-up table that can approximate arbitrary input-output relationships in your data. It overlaps a regular grid on your input space, and it learns values for the output in the vertices of the grid.


Hyperparameter Tuning of Deep Learning Algorithm

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Random Sampling Method: In random method, we have high probability of finding good set of params quickly. Random sampling allows efficient search in hyperparameter space. In this range, it is quite reasonable to pick random values. This way we will spend equal resource to explor each interval of hyperparameter range.


Introduction to Deep Learning 2: Parameters and Configuration

@machinelearnbot

Before we start, please allow me to remark the difference between parameters and hyperparameters: while hyperparameters represent the configurable values used when building the Net, parameters constitute the learnt values (weights) obtained while optimizing the loss function. Usually the training takes several data passes (epochs) and the number of epochs has to be adjusted: too few can lead to underfit, and too many to overfit. In most cases, the data is divided in batches, and the batch size becomes another feature of the network, introducing the concepts of mini-batch and stochastic gradient descent. For example, adding regularization when our model tends to overfit, or reducing the epochs in case training and test performances diverge.


6 machine learning projects to automate machine learning

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Here are six automated machine learning tools leading the way. The first project, "AutoML," was created to automate the design of multi-layer deep learning models. Instead of having human beings toss-and-test one deep learning network design after another, AutoML uses a reinforcement learning algorithm to test thousands of possible networks. This story, "6 machine learning projects to automate machine learning" was originally published by InfoWorld .


Challenges in Deep Learning – Hacker Noon

@machinelearnbot

Deep Learning algorithms mimic human brains using artificial neural networks and progressively learn to accurately solve a given problem. Training a data set for a Deep Learning solution requires a lot of data. Industry level Deep Learning systems require high-end data centers while smart devices such as drones, robots other mobile devices require small but efficient processing units. Deep Learning models, once trained, can deliver tremendously efficient and accurate solution to a specific problem.


Fitting Gaussian Process Models in Python

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A common applied statistics task involves building regression models to characterize non-linear relationships between variables. When we write a function that takes continuous values as inputs, we are essentially implying an infinite vector that only returns values (indexed by the inputs) when the function is called upon to do so. To make this notion of a "distribution over functions" more concrete, let's quickly demonstrate how we obtain realizations from a Gaussian process, which result in an evaluation of a function over a set of points. We are going generate realizations sequentially, point by point, using the lovely conditioning property of mutlivariate Gaussian distributions.


artificial-intelligence-vs-machine-learning

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Neural networks use hyperparameters that distinguish objects and actions. A computer analyzes everything using numbers, so when it is fed an image, it sees that image as a set of numbers. If a neuron sees that an object's numbers fall within its range, then that neuron "fires." That means that if a neuron is trying to distinguish if a person is smiling, and the set of numbers it reads on an image falls within its hyperparameters, then the neuron would fire'yes,' and predict that the person is smiling.


A Vision for Making Deep Learning Simple

@machinelearnbot

Deep Learning Pipelines builds on Apache Spark's ML Pipelines for training, and with Spark DataFrames and SQL for deploying models. Since Deep Learning Pipelines enables exposing deep learning training as a step in Spark's machine learning pipelines, users can rely on the hyperparameter tuning infrastructure already built into Spark. While this is just the beginning, we believe Deep Learning Pipelines has the potential to accomplish what Spark did to big data: make the deep learning "superpower" approachable for everybody. Future posts in the series will cover the various tools in the library in more detail: image manipulation at scale, transfer learning, prediction at scale, and making deep learning available in SQL.


How To Become A Machine Learning Engineer: Learning Path

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Learning will be better if you work on theoretical and practical materials at the same time to get practical experience on the learned material. Fast Style Transfer Network This will show how you can use neural network to transfer styles from famous paintings to any photo. So don't try to figure out solution by yourself -- search for papers, projects, people that can help you. How can I improve tuning of hyperparameters of the models?


Contouring learning rate to optimize neural nets

#artificialintelligence

In plain Stochastic Gradient Descent (SGD), the learning rate is not related to the shape of the error gradient because a global learning rate is used, which is independent of the error gradient. It is imperative to selectively increase or decrease learning rate as training progresses in order to reach the global optimum or the desired destination. Plotting the cross entropy function might be more interpretable due to the log term simply because the learning process is mostly an exponential process taking the form of an exponential shape. If the validation curve closely follows the training curve, the network has trained correctly.