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Vincent Granville's Blog (627)

Great Friday Reading

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Added by Vincent Granville on August 18, 2017 at 8:50pm — No Comments

Curious Mathematical Object: Hyperlogarithms

Logarithms turn a product of numbers into a sum of numbers: log(xy) = log(x) + log(y). Hyperlogarithms generalize the concept as follows: Hlog(XY) = Hlog(X) + Hlog(y), where X and Y are any kind of objects, and the product and sum are replaced by operators in some arbitrary space. …

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Added by Vincent Granville on August 16, 2017 at 12:00pm — 1 Comment

Nice Generalization of the K-NN Clustering Algorithm -- Also Useful for Data Reduction

I describe here an interesting and intuitive clustering algorithm (that can be used for data reduction as well) offering several advantages, over traditional classifiers:

  • More robust against outliers and erroneous data
  • Executing much faster
  • Generalizing well known algorithms

You don't need to know K-NN to understand this article -- but click here if you want to…

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Added by Vincent Granville on August 15, 2017 at 12:00pm — No Comments

Great Saturday Reading

Here is our selection of featured articles and resources posted over the last few days:

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Added by Vincent Granville on August 12, 2017 at 5:00pm — No Comments

Type I and Type II Errors in One Picture

This picture speaks more than words. It explains the concept or false positive and false negative, that is, what is referred to by statisticians as Type I and Type II errors.

Other great pictures summarizing data science and statistical concepts, can be found…

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Added by Vincent Granville on August 10, 2017 at 5:17pm — No Comments

Great Sunday Reading

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Added by Vincent Granville on August 6, 2017 at 11:33am — No Comments

Data Science Simplified: Principles and Process

In 2006, Clive Humbly, UK Mathematician, and architect of Tesco’s Clubcard coined the phrase “Data is the new oil. He said the following:

Data is the new oil. It’s valuable, but if unrefined it cannot be used. It has to be…

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Added by Vincent Granville on August 3, 2017 at 4:30pm — No Comments

Great Saturday Reading

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Added by Vincent Granville on July 22, 2017 at 12:41pm — No Comments

Data Scientists Automated and Unemployed by 2025 - Update

Summary:  A year ago we wrote about the emergence of fully automated predictive analytic platforms including some with true One-Click Data-In Model-Out capability.  We revisited the five contenders from last year with one new addition and found the automation movement continues to move forward.  We also observed some players from last year have now gone in different directions.  …

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Added by Vincent Granville on July 18, 2017 at 11:37am — No Comments

Great Saturday Reading

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Added by Vincent Granville on July 15, 2017 at 1:40pm — No Comments

How to Detect if Numbers are Random or Not

In this article, you will learn some modern techniques to detect whether a sequence appears as random or not, whether it satisfies the central limit theorem (CLT) or not -- and what the limiting distribution is if CLT does not apply -- as well as some tricks to detect abnormalities. Detecting lack of randomness is also referred to as signal versus noise detection, or pattern recognition.

It leads to the exploration of time series with massive, large-scale (long term) auto-correlation…

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Added by Vincent Granville on July 10, 2017 at 12:00am — 4 Comments

Great Sunday Reading

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Added by Vincent Granville on July 9, 2017 at 10:07am — No Comments

Understanding the Changing Position Roles in Data Science

Is everyone a ‘data scientist’? What about ‘data engineers’ and the junior versus senior, or skill level distinctions? We do seem to need some agreement about titling. Data Scientists is still the prestige title but there are some folks lobbying to take that title away. Click here to read more. 

New blog post: 7 Great Articles About TensorFlow

  • Google + open-source = TensorFlow 
  • Deep Learning with TensorFlow in…
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Added by Vincent Granville on July 5, 2017 at 6:23pm — No Comments

Great Friday Reading

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Added by Vincent Granville on June 30, 2017 at 1:51pm — No Comments

Data Science and Machine Learning Without Mathematics

There is a set of techniques covering all aspects of machine learning (the statistical engine behind data science) that does not use any mathematics or statistical theory beyond high school level. So when you hear that some serious mathematical knowledge is required to become a data scientist, this should be taken with a grain of salt.…

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Added by Vincent Granville on June 26, 2017 at 4:54pm — No Comments

Great Saturday Reading

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Added by Vincent Granville on June 24, 2017 at 10:55am — No Comments

100 Free Tutorials for learning R

Here is our selection of featured articles and resources posted in the last few days.

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Added by Vincent Granville on June 17, 2017 at 11:59am — No Comments

Great Sunday Reading and Upcoming DSC Webinars

Great Saturday reading: our selection of articles and resources featured today:

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Added by Vincent Granville on June 10, 2017 at 12:30pm — No Comments

Great Saturday Reading

Here is our selection of featured articles and resources recently posted.

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Added by Vincent Granville on June 3, 2017 at 12:33pm — No Comments

Great Saturday Reading

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Added by Vincent Granville on May 27, 2017 at 2:06pm — No Comments

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