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.
Added by Vincent Granville on October 20, 2019 at 4:30pm — No Comments
Why do we take logs of variable in Regression analysis?
We should remember that a regression equation has two parts
i) The Dependent variable (Predictand)
ii) The Independent variables (Predictors) ; which can be one or more and can be of different types (Categorical or Continuous).
The nature of the regression that we should run depends on the type of Dependent variable that we are dealing with in our model. For example, if the dependent variable is Continuous…Continue
Added by Sibashis Chakraborty on October 20, 2019 at 8:57am — No Comments
This article was written by Alberto Quesada.
The procedure used to carry out the learning process in a neural network is called the optimization algorithm (or optimizer). There are many different optimization algorithms. All have different characteristics and performance in terms of memory requirements, speed and…Continue
Added by Andrea Manero-Bastin on October 20, 2019 at 2:00am — No Comments
This article was written by Laurel Brunk.
Data scientists spend most of their time (up to 79%!) on the part of their job they hate most.
The Role of…Continue
P-values ("Probability values") are one way to test if the result from an experiment is statistically significant. This picture is a visual aid to p-values, using a theoretical experiment for a pizza business.…Continue
Big Data Analytics:
Rising volume, variety and velocity of data are leveraging companies to embrace methods to analyze and process data for enhanced productivity. Growing smartphone penetration results to increase the digital interactions of individuals thus generating massive data. This attributes to the need for advanced analytics solutions thereby driving the big data analytics market. Factors such as quick & easy setup of data feed without any manual coding…Continue
Added by Kirthy Patel on October 18, 2019 at 4:00am — No Comments
In this post we will talk about the Kepler dataset from Kaggle competitions and use it to build an exoplanet detection model using TensorFlow's prebuilt estimator for gradient boosting trees known as the BoostedTreesClassifier.
For the project explained in this post, we use the Kepler labeled time series data from Kaggle. This dataset is derived mainly from the Campaign 3 observations of the mission by…Continue
Added by Packt Publishing on October 18, 2019 at 1:30am — No Comments
The explosion of data in the world – right from the data collected from the cameras to the data gathered from visitors’ actions on websites – is staggering. With new types of data pouring in and the applications of data analysis becoming vast, companies need to regulate the unprecedented data.The explosion of data in the world – right from the data collected from the cameras to the data gathered from visitors’ actions on websites – is staggering. With new types of data…Continue
Added by Divyesh Aegis on October 18, 2019 at 1:00am — No Comments
With data growing at its highest rate ever, cyberattacks and digital warfare are on the rise to get hold of any crucial data. The malicious actors primarily target the data in organizations; if it’s important to you, so it is to them.
Cybercriminals often target databases since they mostly store sensitive data — customer data, financial…Continue
Added by Evan Morris on October 17, 2019 at 7:19pm — No Comments
Here is a piece of content on Xpaths which is the follow up of How Xpath Plays Vital Role In Web Scraping
Let’s dive into a real-world example of scraping amazon website for getting information about deals of the day. Deals of the day in amazon can be found at this …Continue
Added by Sandra Moraes on October 17, 2019 at 7:00pm — No Comments
XPath is a language for finding information in structured documents like XML or HTML. You can say that XPath is (sort of) SQL for XML or HTML files. XPath is used to navigate through elements and attributes in an XML or HTML document.
To understand XPath we must be clear about elements and nodes which are the building blocks of XML and HTML. Let’s talk about them. Here is an example element in an HTML…
Added by Sandra Moraes on October 17, 2019 at 7:00pm — No Comments
Here is our selection of featured articles and technical resources posted since Monday:
Added by Vincent Granville on October 17, 2019 at 9:00am — No Comments
by Vic Diloreto, Director, Software Products, Elder Research
The Risk Assessment Data Repository (RADR) is a powerful risk analytics platform used to enhance productivity in the investigation of fraud, waste and abuse. This server-based, data analytics product fuses data from…Continue
Added by Paul Derstine on October 17, 2019 at 5:01am — No Comments
I wrote earlier in 2019 an article entitled New Stock Trading and Lottery Game Rooted in Deep Math, see here. It features a number guessing game that -- depending on the parameters -- mimics either a neutral stock market or a lottery. The gain depends on the distance between your guess and the winning numbers. The average gain is zero, and…Continue
Added by Vincent Granville on October 16, 2019 at 7:30am — No Comments
Like a failed communist state traditional machine learning centralises training of a model on a single machine. Centralising data in a single central location is not always possible for a variety of reasons such as slow network connections, and legal constraints. These…Continue
Added by Brett Drury on October 16, 2019 at 2:00am — No Comments
The whole world is evolving at the lightening speed due to technological advancement. Most of the business sectors have opted for one or other technological solutions for operating their business smoothly and also for earning huge profits. The advent of advanced technologies like…Continue
Added by Shady Johnson on October 16, 2019 at 1:30am — No Comments
This article was written by Tirthajyoti Sarkar.
Thanks to my CS7641 class at Georgia Tech in my MS Analytics program, where I discovered this concept and was inspired to write about it. Thanks to Matthew Mayo for editing and re-publishing this…Continue
Added by Andrea Manero-Bastin on October 15, 2019 at 12:30am — No Comments
Human and artificial intelligence compares just as well as oranges and apples do. Nonetheless, the broader public does precisely that, including a vast portion of businesses and organizations. Hence, let's do a thought experiment: If we were to compare human and artificial intelligence, how would we go about it? And what would be the possible conclusions from that comparison?…Continue
Added by Rafael Knuth on October 14, 2019 at 9:30am — No Comments
Summary: Data Scientists from Booking.com share many lessons learned in the process of constantly improving their sophisticated ML models. Not the least of which is that improving your models doesn’t always lead to improving business outcomes.
As Kevin Lynch, CTO of The Information Lab in Dublin, was describing how his organization uses the Hypothesis Development Canvas, it occurred to me that Kevin was actually using the canvas to tell a story about how his organization uses data science to uncover new sources of value (see Figure 1).…Continue
Added by Bill Schmarzo on October 14, 2019 at 5:00am — No Comments