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Featured Blog Posts (5,343)

Comparing Model Evaluation Techniques Part 2: Classification and Clustering

In part 1, I compared a few model evaluation techniques that fall under the umbrella of 'general statistical tools and tests'. Here in Part 2 I compare three of the more popular model evaluation techniques for classification and clustering: confusion…

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Added by Stephanie Glen on July 21, 2019 at 9:47am — No Comments

Weekly Digest, July 22

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.  

Featured Resources and Technical…

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Added by Vincent Granville on July 21, 2019 at 8:00am — No Comments

A Technical Look at How Criminals Use AI

This article was written by ODSC - Open Data Science in Predict.

 

Machine learning is one of the most exciting new features used in…

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Added by Andrea Manero-Bastin on July 12, 2019 at 2:00am — No Comments

Visualizing and Animating Optimization Algorithms with Matplotlib

This article was written by Louis Tiao.

 

In this series of notebooks, we demonstrate some useful patterns and recipes for visualizing animating optimization algorithms using Matplotlib.

 …

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Added by Andrea Manero-Bastin on July 19, 2019 at 10:30pm — No Comments

Linear and logistic regression in Excel and R: try this free add-in (RegressIt)

Excel is often poorly regarded as a platform for regression analysis. The regression add-in in its Analysis Toolpak has not changed since it was introduced in 1995, and it was a flawed design even back then.  (See this link for a discussion.)    That’s unfortunate, because an Excel file can be a very good place in which to build regression models, compare and refine them, create…

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Added by Robert Nau on July 21, 2019 at 7:00am — No Comments

Value Chains vs Network…Make Way for Co-creation Business Models

 Before I kick off this new blog, I’m happy to announce the release of my 3rd book” "The Art of Thinking Like A Data Scientist”. This book is designed to be a workbook – a pragmatic tool that you can use to help your organization leverage data and analytics to power your business and operational models. The book is jammed with templates, worksheets, examples and…

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Added by Bill Schmarzo on July 19, 2019 at 12:58pm — No Comments

Let's Add Coding to Writing in Mathematics

One of my most memorable experiences during my college years was having an English professor who spoke entirely in complete sentences.There were no spoken sentence fragments, dangling thoughts or misuse of adjectives, verbs or nouns. When I first met him, I was stunned at his level of commitment to this principle. I often wondered how challenging this must be for him and whether or not the…

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Added by Richard Charles, PhD on July 19, 2019 at 6:00pm — No Comments

Streamlining Predictive Modeling Workflow with Sagemaker and Essentia

Ecommerce sites generate tons of web server log data which can provide valuable insights through analysis. For example, if we know which users are more likely to buy a product, we can perform targeted marketing, improve relevant product placement on our site and lift conversion rates. However, raw web logs are often enormous and messy so preparing the data to train a predictive model is time consuming for data scientists.…

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Added by Ayumi Owada on July 18, 2019 at 2:00pm — No Comments

Building Neural Network in Keras

A neural network is a series of algorithms that aims to identify underlying relationships in a set of data through a process that is similar to the way the human brain functions.

Keras is an open-source library written in Python for advancing and evaluating deep learning models. It enables you to define and train neural network models in a few lines of code. In this post, we will learn how to build a neural network using…

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Added by Packt Publishing on July 18, 2019 at 3:27am — No Comments

R, without all that pesky code!

Those of us who were data science practitioners before the ubiquity of buzz words like “Fourth Industrial Revolution”, remember a time when data science was being described as “utter hubris” by some of the worlds leading quants. All these buzz words, coupled with misplaced applications of data science have turned it into a fairly nebulous concept. Which is a problem.



In facilitating my data science workshops I've realized there are two main groups of audiences and learners.…

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Added by Mkhuseli Mthukwane on July 17, 2019 at 1:00am — 1 Comment

The Case For Modern Microservice Applications: Foxes vs. pigeons vs. groundhogs

When trying to implement informed business solutions, what you see is all there is (WYSIATI), which can result in being “data-nearsighted.” For this reason, it is crucial to have a comprehensive data strategy in order to make better business decisions and implement efficient business solutions…

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Added by Aaron Burciaga on July 16, 2019 at 11:11am — No Comments

5 Reasons You Need a Better Data Management Solution

Congratulations.
It took time, but you’re data-driven. You’ve got data scientists to crunch numbers, a fully stocked data lake, and analysts to make it all make sense. But even with the infrastructure in place, benefiting from data isn’t as easy as flipping a switch. These days, businesses have yet to properly…
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Added by Lewis Wynne-Jones on July 16, 2019 at 5:00am — No Comments

If not mean-variance finance, then what?

I want to apologize to my small audience for being so long in waiting to post a blog post.  My goal had been one per week, but life intervened in the meantime.  While I have tried to be productive, the blog post fell by the wayside. 

 

I did write a couple of short stories, I must confess.  I wrote How to Engage in Counterespionage Operations Against Ghosts because I grew up watching Sherlock Holmes movies and the Twilight Zone.  I wrote a small set of short stories…

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Added by David Harris on July 16, 2019 at 12:45pm — No Comments

How IoT Is Shaping the Agriculture Sector: Benefits Offered by Latest Trends of IoT



With the changing streams of today's technology, business sectors are gaining various benefits from the latest trends. As the modern world has adopted modern approaches, many sectors have undergone a huge transformation and agriculture is one of them which has got this opportunity to upgrade most of their approaches to…

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Added by Smith Johnson on July 16, 2019 at 2:00am — No Comments

The Mathematics behind Artificial Intelligence and Deep Learning

"The book of nature is written in the language of mathematics!" - Galileo.

Each has their own journey through the deep woods of AI & ML. My own exploration has had many stops and starts, stumbles and falls and change in direction. Along the way I have been picked up and helped along by…

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Added by Jai Sharma on July 15, 2019 at 1:30pm — No Comments

Return of the Thriller “3 Horizons of Digital Transformation”

In “Importance of Thinking Differently…Hint: Don’t Pave the Cow Path”, I introduced the concept of the “3 Horizons of Digital Transformation.”  I wanted to provide a framework that helped organizations differentiate between “Digitalization” versus “Digital Transformation”.  Unfortunately, in succeeding client engagements, I realized I did a crappy job of explaining these 3…

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Added by Bill Schmarzo on July 13, 2019 at 12:25pm — No Comments

Smart Farming, or the Future of Agriculture

We are a Ukraine-based company which means that our parents and grandparents lived in the era of infamous Soviet collective farms, where tractors were considered to be an ultimate technology. For them, a smart farm will sound like a fairy tale.…

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Added by Max Ved on July 9, 2019 at 2:41pm — No Comments

Bayesian Machine Learning

Bayesian Machine Learning (part - 3)

 

Bayesian Modelling

In this post we will see the methodology of building  Bayesian models. In my previous post I used a Bayesian model for linear regression. The model looks like:…

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Added by Ashutosh vyas on July 13, 2019 at 3:28am — No Comments

Free book: The #dataengineering cookbook by Andreas Kretz

 

 

I found an interesting, free book which is still a work in progress book – The Data Engineering Cookbook

 

I will be contributing through the author (Andreas Kretz.com) patreon site : (…

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Added by ajit jaokar on July 17, 2019 at 11:00am — No Comments

Thinking about Moving Up to Automated Machine Learning (AML)

Summary: Are you wondering about moving up to Automated Machine Learning (AML)?  Here are some considerations to help guide you.

 

Are you wondering about moving up to Automated Machine…

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Added by William Vorhies on July 15, 2019 at 7:30am — No Comments

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