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Vincent Granville's Blog (1,032)

Comparison of Deepnet & Neuralnet

Guest blog post by Blaine Batman. Based on two R packages for neural networks.

In this article, I compare two available R packages for using neural networks to model data: neuralnet and deepnet. Through the comparisons I highlight various challenges in finding good hyperparameter values. I show that some needed hyperparameters differ when using these two packages, even with the same…

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Added by Vincent Granville on December 15, 2017 at 8:00am — No Comments

Thursday News: Big Data, ML, AI, Tensorflow, Privacy, Slim Databases

Here is our selection of featured articles and resources posted since Monday:

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Added by Vincent Granville on December 14, 2017 at 10:30am — No Comments

17 Great Articles Posted in the last 12 Months

This is part of a new series of articles: once or twice a month, we post previous articles that were very popular when first published. These articles are at least 6 month old but no more than 12 month old. The previous digest in this series was posted here a while back. 

17 Great Articles Posted in the last 12…

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Added by Vincent Granville on December 12, 2017 at 9:00am — No Comments

21 Curated Blogs About Deep Learning and Data Science

The following articles were recently hand-picked, and curated by one of our interns, Amelia. They quickly became popular, and cover dozens of topics of interest to data scientists. This is just a small, random selection among popular curated blogs on DSC. You can check our previous selection of curated articles here.…

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Added by Vincent Granville on December 11, 2017 at 6:00pm — No Comments

Weekly Digest, December 11

Monday newsletter published by Data Science Central. Previous editions can be found here.  The contribution flagged with a + is our selection for the picture of the week.

Announcements
  • Are you a data scientist looking to apply Apache Spark to build advanced analytics applications at scale? …
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Added by Vincent Granville on December 9, 2017 at 11:00am — No Comments

Thursday News: AI, Neural Nets, Machine Learning, Tensorflow

This is our selection of featured articles and resources posted since Monday:

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Added by Vincent Granville on December 7, 2017 at 9:30am — No Comments

14 Great Blogs Posted in the last 12 Months

This is part of a new series of articles: once or twice a month, we post previous articles that were very popular when first published. These articles are at least 6 month old but no more than 12 month old. The previous digest in this series was posted here a while back. 

14 Great Blogs Posted in the last 12…

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Added by Vincent Granville on December 5, 2017 at 8:00am — No Comments

Trump Solves Famous Mathematical Conjecture

In an email sent to Putin and intercepted by hackers, Donald Trump mentions the result below. However, Trump wrote that he did not have enough space in his message to add the proof, a bit like Fermat when he wrote about his big theorem proved 300 years later. A teacher in New Hope Middle School (Pennsylvania) asked her students to verify if the statement was correct, and found it to be true. In his email, Trump wrote that he planned to leverage this result to find new prime numbers. It was…

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Added by Vincent Granville on December 3, 2017 at 4:30pm — 2 Comments

Weekly Digest, December 4

Monday newsletter published by Data Science Central. Previous editions can be found here.  The contribution flagged with a + is our selection for the picture of the week.

Announcements

  • Use data to drive the future of business—and your career through…
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Added by Vincent Granville on December 2, 2017 at 11:00am — No Comments

The New Face of Credit Card Fraud

You would think that I am going to talk about new levels of sophistication achieved by cybercriminals. No, here I discuss a different trend: Outright credit card fraud committed by big  businesses, in this case Amazon. 

While this is about my experience, and involves more than $1,000 in fraudulent transactions over the course of two weeks, I have no reason to believe that I was specifically targeted. Maybe a million customers have faced the same issue. The fraud was reported to the…

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Added by Vincent Granville on December 1, 2017 at 2:00pm — No Comments

Free eBook: Applied Data Science (Columbia University)

Published in 2013, but still very interesting, and different from most data science books. Authors: Ian Langmore and Daniel Krasner.. This book focuses more on the statistics end of things, while also getting readers going on (basic) programming & command line skills. It doesn't, however, really go into much of the stuff you would expect to see from the machine learning end of things. …

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Added by Vincent Granville on December 1, 2017 at 10:32am — No Comments

22 Great Articles About Neural Networks

This resource is part of a series on specific topics related to data science: regression, clustering, neural networks, deep learning, Hadoop, decision trees, ensembles, correlation, outliers, regression, Python, R, Tensorflow, SVM, data reduction, feature selection, experimental design, time series, cross-validation, model fitting, dataviz, AI and…

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Added by Vincent Granville on November 29, 2017 at 3:30pm — No Comments

Sample Job Titles and Salaries for Recently filled Data Science Positions in US

This came in my mailbox today, sent from this source. I thought you would be interested in this.

Sample list of recent placement:…

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Added by Vincent Granville on November 28, 2017 at 1:30pm — No Comments

17 Great Blogs Posted in the last 12 Months

This is part of a new series of articles: once or twice a month, we post previous articles that were very popular when first published. These articles are at least 6 month old but no more than 12 month old. The previous digest in this series was posted here a while back. 

17 Great Blogs Posted in the last 12…

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Added by Vincent Granville on November 27, 2017 at 7:30pm — No Comments

Weekly Digest, November 27

Monday newsletter published by Data Science Central. Previous editions can be found here.  The contribution flagged with a + is our selection for the picture of the week.

Featured Resources and Technical Contributions

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Added by Vincent Granville on November 25, 2017 at 1:30pm — No Comments

Thursday News: Tensorflow, Books, Deep Learning, NLP, Machine Learning, Chatbots

Here is our Thanksgiving selection of featured articles and resources:

Technical

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Added by Vincent Granville on November 23, 2017 at 9:16am — No Comments

Best DSC Forum Questions - Part 4

This is a new series, featuring forum questions (new and old) that are still popular today. These questions were selected manually based on popularity, removing outdated material. The entire series consists of about 160 questions -- most with answers, sometimes several answers. We intend to publish a new set every two weeks or so. The previous edition was posted …

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Added by Vincent Granville on November 22, 2017 at 12:30pm — No Comments

J.P. Morgan's Comprehensive Guide on Machine Learning

At 280 pages, the report is too long to cover in detail, but we’ve pulled out the most salient points for you below.

Main Points

  • Banks will need to hire excellent data scientists who also understand how markets work
  • Machines are best…
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Added by Vincent Granville on November 21, 2017 at 8:38pm — No Comments

An Economic Perspective on Fraud Analytics: Calculating ROI of Fraud Detection Systems

By Bart Baesens, Véronique Van Vlasselaer and Wouter Verbeke

The importance and need for effective fraud detection and prevention systems is highlighted by some recent numbers which give an indication of the estimated size and the financial impact of fraud:

  • A typical organization loses 5% of its revenues to fraud each year (www.acfe.com)
  • The total cost of insurance fraud…
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Added by Vincent Granville on November 21, 2017 at 4:00pm — No Comments

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