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Vincent Granville's Blog (1,397)

Weekly Digest, September 9

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. To subscribe, follow this link.

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Added by Vincent Granville on September 8, 2019 at 2:00pm — No Comments

Two New Deep Conjectures in Probabilistic Number Theory

The material discussed here is also of interest to machine learning, AI, big data, and data science practitioners, as much of the work is based on heavy data processing, algorithms, efficient coding, testing, and experimentation. Also, it's not just two new conjectures, but paths and suggestions to solve these problems. The last section contains a few new, original exercises, some with solutions, and may be useful to students, researchers, and instructors offering math and statistics classes…

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Added by Vincent Granville on September 7, 2019 at 9:30pm — No Comments

Thursday News, September 5

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

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Added by Vincent Granville on September 5, 2019 at 7:30am — No Comments

Common Errors in Machine Learning due to Poor Statistics Knowledge

Probably the worst error is thinking there is a correlation when that correlation is purely artificial. Take a data set with 100,000 variables, say with 10 observations. Compute all the (99,999 * 100,000) / 2 cross-correlations. You are almost guaranteed to find one above 0.999. This is best illustrated in may article How to Lie with P-values (also discussing how to handle…

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Added by Vincent Granville on September 2, 2019 at 3:00pm — No Comments

15 Articles and Tutorials about Outliers

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, ouliers, regression Python, R, Tensorflow, SVM, data reduction, feature selection, experimental design, time series, cross-validation, model fitting, and many more. To keep receiving these articles, …

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Added by Vincent Granville on September 1, 2019 at 10:00am — No Comments

Misuses of Statistics: Examples and Solutions

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, and many more. To keep receiving these articles, …

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Added by Vincent Granville on September 1, 2019 at 9:30am — No Comments

Weekly Digest, September 2

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. To subscribe, follow this link.  

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Added by Vincent Granville on September 1, 2019 at 6:30am — No Comments

Thursday News, August 29

Here is our selection of featured articles, forum questions, and technical resources posted since Monday. Several great contributions were featured today. 

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Added by Vincent Granville on August 29, 2019 at 1:30pm — No Comments

Extreme Events Modeling Using Continued Fractions

Continued fractions are usually considered as a beautiful, curious mathematical topic, but with applications mostly theoretical and limited to math and number theory. Here we show how it can be used in applied business and economics contexts, leveraging the mathematical theory developed for continued fraction, to model and explain natural phenomena. 

The interest in this project started when analyzing sequences such as x(n) = { nq } = nq -…

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Added by Vincent Granville on August 29, 2019 at 7:30am — 4 Comments

Weekly Digest, August 26

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. To subscribe, follow this link.  

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Added by Vincent Granville on August 25, 2019 at 6:30am — No Comments

A Strange Family of Statistical Distributions

I introduce here a family of very peculiar statistical distributions governed by two parameters: p, a real number in [0, 1], and b, an integer > 1. These distributions were discovered by solving the following functional equation, corresponding to b = 2. 

Here f(x) is the density attached to that…

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Added by Vincent Granville on August 23, 2019 at 10:30am — No Comments

Thursday News, August 22

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

Resources, Forum Questions:

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Added by Vincent Granville on August 22, 2019 at 1:00pm — No Comments

Weekly Digest, August 19

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. To subscribe, follow this link

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Added by Vincent Granville on August 18, 2019 at 10:30am — No Comments

Thursday News, August 15

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

Technical Resources and Forum Questions

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Added by Vincent Granville on August 15, 2019 at 9:30am — No Comments

Weekly Digest, August 12

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. To subscribe, follow this link.  

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Added by Vincent Granville on August 11, 2019 at 8:00am — No Comments

Thursday News, August 8

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

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Added by Vincent Granville on August 8, 2019 at 11:08am — No Comments

Weekly Digest, August 5

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. To subscribe, follow this link.  

Announcement…

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Added by Vincent Granville on August 4, 2019 at 1:00pm — No Comments

Thursday News, August 1

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

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Added by Vincent Granville on August 1, 2019 at 1:30pm — No Comments

How to deal with missing data

Originally posted by Vincent Ajayi

The most common challenge faced by data scientists (DS) and data analysts (DA) is missing data. Every day, both DA and DS spend several hours dealing with missing data. The question is why is missing data a problem? Analysts presume that all variables should have a particular value at a particular state, and when there is no value for the…

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Added by Vincent Granville on July 27, 2019 at 7:25pm — No Comments

Data Science Central Weekly Digest, July 29

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. To subscribe, follow this link.  

Upcoming DSC…

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Added by Vincent Granville on July 27, 2019 at 7:00pm — No Comments

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