You're reading from R Deep Learning Essentials. - Second Edition

Product typeBook

Published inAug 2018

Reading LevelIntermediate

PublisherPackt

ISBN-139781788992893

Edition2nd Edition

Languages

Tools

H2O

Concepts

Deep Learning

Authors (2):

Mark Hodnett

Joshua F. Wiley

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Tuning hyperparameters

All machine learning algorithms have hyper-parameters or settings that can change how they operate. These hyper-parameters can improve the accuracy of a model or reduce the training time. We have seen some of these hyper-parameters in previous chapters, particularly Chapter 3, Deep Learning Fundamentals, where we looked at the hyper-parameters that can be set in the mx.model.FeedForward.create function. The techniques in this section can help us find better values for the hyper-parameters.

Selecting hyper-parameters is not a magic bullet; if the raw data quality is poor or if there is not enough data to support training, then tuning hyper-parameters will only get you so far. In these cases, either acquiring additional variables/features that can be used as predictors and/or additional cases may be required.

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R Deep Learning Essentials. - Second Edition

Published in: Aug 2018Publisher: PacktISBN-13: 9781788992893

Authors (2)

Mark Hodnett

Mark Hodnett is a data scientist with over 20 years of industry experience in software development, business intelligence systems, and data science. He has worked in a variety of industries, including CRM systems, retail loyalty, IoT systems, and accountancy. He holds a master's in data science and an MBA. He works in Cork, Ireland, as a senior data scientist with AltViz.
Read more about Mark Hodnett

Joshua F. Wiley

Joshua F. Wiley is a lecturer at Monash University, conducting quantitative research on sleep, stress, and health. He earned his Ph.D. from the University of California, Los Angeles and completed postdoctoral training in primary care and prevention. In statistics and data science, Joshua focuses on biostatistics and is interested in reproducible research and graphical displays of data and statistical models. He develops or co-develops a number of R packages including Varian, a package to conduct Bayesian scale-location structural equation models, and MplusAutomation, a popular package that links R to the commercial Mplus software.
Read more about Joshua F. Wiley

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Authors (2)

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