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All Blog Posts Tagged 'algorithm' (14)

How To Mimic Evolution For Machine Learning Tasks

Experiments

In his book, The Master Algorithm, Pedro Domingos imagines the following experiments:  

Take a building, extremely wellbuilt for two purposes: Nothing can enter and most importantly nothing can…

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Added by Paul Pinard on April 16, 2019 at 6:00am — No Comments

MATLAB toolbox on regime switching copula estimation and simulation

Hi all.

You may want to check out my code on regime switching copula models.The toolbox is designed to estimate the parameters of a regime switching copula model, assuming two regimes. Each regime can be described by any of the following five copulas:

  • t - copula
  • Gaussian Copula
  • Clayton Copula
  • Frank Copula
  • SJC copula

The correlation coefficient, rho, for the eliptical copulas and the copula parameter tau, for Clayton and…

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Added by Manthos Vogiatzoglou on August 20, 2018 at 12:00am — No Comments

Character Analysis in Production and Sales

A fictitious retailer which I am calling Malwart sells automobiles and automotive parts.  On this blog I will be focused on the sale of a particular automobile model called the Blair - a sporty compact that can be ordered in custom colour schemes.  Because all sales must be done by clients that also have accounts,…

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Added by Don Philip Faithful on December 24, 2017 at 6:30am — No Comments

Sequenced Differential Lattices and Randomness

The images on this blog are from an algorithmic environment that I first developed about 15 years ago - rendered using a graphical system that I wrote in Java.  A “differential lattice” is a structured array of differences between two points:  e.g. the difference between the closing price of a stock on day T-0 (today) and T-6 (a week ago).  Consequently, if the closing prices are $10.10, $10.20, $10.30, $10.40, and $10.50 (today), then 0/3 is from T-0/T-3 or $10.50 less $10.20 = $0.30.  A…

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Added by Don Philip Faithful on August 12, 2017 at 5:30am — No Comments

Machine Learning Translation and the Google Translate Algorithm

Years ago, it was very time consuming to translate the text from an unknown language. Using simple vocabularies with word-for-word translation was hard for two reasons: 1) the reader had to know the grammar rules and 2) needed to keep in mind all language versions while translating the whole sentence.

Now, we…

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Added by Luba Belokon on August 1, 2017 at 5:00am — No Comments

Spectral Attenuation Monitor

About a month ago in a blog, I introduced what I described as a “spectral attenuation monitor.”…

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Added by Don Philip Faithful on April 9, 2017 at 6:30am — No Comments

Ecology of Truth

It’s possible I haven’t shared my story of being asked whether people can leap over lampposts.  The question was posed by a university professor although I don’t recall the exact context.  In response, I asked if the people are on this planet.  He hissed at me, “Of course they are on this planet!”  Some planets have low gravitational fields that make it possible for humans to leap great heights.  At the time it didn’t seem like an oratorical question; and so I made an effort to answer it. …

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Added by Don Philip Faithful on March 4, 2017 at 8:54am — No Comments

Crosswave Differential Event Model

I have been writing about the Crosswave Differential Algorithm for a number of years. I described in previous blogs how the algorithm emerged almost by accident while I was attempting to write an application intended to support quality control. In this blog I will be discussing the event model that powers the…

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Added by Don Philip Faithful on January 14, 2017 at 5:27am — No Comments

H2O , Diabetes and Data Science

Test Blood Glucose For Diabetes

Machine Learning is all about creating an artificial brain to perform a task by itself. In most cases that task is Prediction.

How to create a brain which can do predictions ?

  1. Create a dumb brain ( technically its called as 'Model')
  2. Tell your brain a story  (Datasets…
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Added by Gnanaguru Sattanathan on January 3, 2017 at 1:45am — 1 Comment

Context Levels in Data Science Solutioning in real-world

A Data science-based solution needs to address problems at multiple levels. While it addresses a business problem, computationally it is comprised of a pipeline of algorithm which, in turn, operates on relevant data presented in proper format. Thus to understand the them we need to focus at least at the

  • Business level;
  • Algorithm level; and
  • Data level.

Contrary to the popular belief, almost all non-trivial data science solutions are needed to be…

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Added by Arijit Laha on October 3, 2016 at 10:30pm — No Comments

Theory Development Using Symbols Rather than Quantities

In this blog, I will be considering theory developments from changes in methodology. But first I want to express an opinion on the significance of using numbers. A "number" represents an amplitude or magnitude: 5 pencils; 13 paperclips; 50 sheets of paper. The purpose of these numbers is to facilitate the counting of things that are presumably the same in a specific way: e.g. all 5 pencils are in fact pencils - for if 1 were an eraser, there would be 4 pencils and 1 eraser. The use of…

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Added by Don Philip Faithful on August 20, 2016 at 8:30am — No Comments

Top 5 graph visualisation tools

Data visualisation is the process of displaying data in visual formats such as charts, graphs or maps. This method is commonly used to grasp more meaning out of a snapshot of data which in other approaches might require sorting through piles of spreadsheets and great quantity of reports. With the amount of data growing rapidly it is more important than ever to interpret all of this information correctly and quickly to make well-informed business decisions.

Graph visualisation has a…

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Added by Zygimantas Jacikevicius on November 23, 2015 at 6:30am — 1 Comment

Mass Data Simulations

I have been using the term "mass data assignment" in my blogs. I thought I should offer the community some simulated examples. These are simple simulations: all the data is in one place in an agreeable format. The file contents are meant to be easy to peruse. When I was younger, there was a television series called "Stargate SG-1." I have a number of seasons on DVD. In this series, a special branch of the U.S. Air Force visits offworld sites using stable wormholes: teams enter the wormholes…

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Added by Don Philip Faithful on November 14, 2015 at 6:41am — No Comments

“The Purple People” - The conundrum of finding business expertise among Data Scientists.

“The Purple People” - The conundrum of finding business expertise among Data Scientists.



Over the last several months, as I looked at addressing the business needs across various industries as someone leading a team of  Data Scientists, the question of domain expertise invariably cropped up.



Attending one meeting with a Pharmaceutical company, I was posed with the question of, "Have you done work in the areas of Rare Signal detection?" In a similar vein, while…

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Added by Somjit Amrit on September 10, 2013 at 10:47pm — No Comments

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