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Raise your hand, if you are stuck in confusion between Artificial Intelligence, Machine Learning and Deep Learning. Are you one of these? If yes, then you have clicked the right page. Here, you will get your answers.…
ContinueAdded by Varun Bhagat on August 30, 2020 at 9:30pm — No Comments
Nowadays, most data scientists use either Python or R as their main programming language. That was also my case until I met Julia earlier this year. Julia promises performance comparable to statically typed compiled languages (like C) while keeping the rapid development features of interpreted languages (like Python, R or Matlab). This performance is achieved by just-in-time (JIT) compilation. Instead of interpreting code, Julia compiles code in runtime. While JIT compilation has…
ContinueAdded by Daniel Moura on August 22, 2019 at 1:00pm — No Comments
There has been much hype surrounding deep learning and data science learning in recent times, and one of the cornerstones of deep learning is the neural network. In this article, we will look at what a neural network is and get familiar with the relevant terminologies.
In simplest terms, a neural network is an interconnection of neurons. Now the question arises, what is a neuron? To understand neurons in deep learning, we first…
ContinueAdded by Divya Singh on September 20, 2018 at 4:00am — No Comments
Testing is an often overlooked yet critical component of any software system. In some ways this is more true of models than traditional software. The reason is that computational systems must function correctly at both the system level and the model level. This article provides some guidelines and tips to increase the certainty around the correctness of your models.
One of my mantras is that a good tool extends our ability and never gets in…
ContinueAdded by Brian Rowe on July 7, 2016 at 4:30am — No Comments
In this post I will present a simple way how to export your regression results (or output) from R into Microsoft Word. Previously, I have written a tutorial how to create Table 1 with study characteristics and to export into Microsoft Word. These posts are especially useful for researchers who prepare their manuscript for publication in peer-reviewed journals.
Added by Klodian on June 9, 2016 at 11:43am — No Comments
In research, especially in medical research, we describe characteristics of our study populations through Table 1. The Table 1 contain information about the mean for continue/scale variable, and proportion for categorical variable. For example: we say that the mean of systolic blood pressure in our study population is 145 mmHg, or 30% of participants are smokers. Since is called Table 1, means that is the first table in the manuscript.
To create the Table 1…
ContinueAdded by Klodian on May 29, 2016 at 6:46am — No Comments
In statistics, a outlier is defined as a observation which stands far away from the most of other observations. Often a outlier is present due to the measurements error. Therefore, one of the most important task in data analysis is to identify and (if is necessary) to remove the outliers.
There are different methods to detect the outliers, including standard deviation approach and Tukey’s method which use interquartile (IQR) range approach. In this post I will use…
ContinueAdded by Klodian on May 24, 2016 at 11:07pm — No Comments
Here are three useful resources for learning about Data Science:
Added by Ujjwal Karn on May 18, 2016 at 8:59am — No Comments
I created an R package for exploratory data analysis. You can read about it and install it here.
The package contains several tools to perform initial exploratory analysis on any input dataset. It includes custom functions for plotting the data as well as performing different kinds of analyses such as univariate, bivariate and multivariate investigation which is the first step of any…
ContinueAdded by Ujjwal Karn on May 18, 2016 at 8:30am — No Comments
Data is growing, and hence is the requirement for perfect decision making by companies. In this era where analytics is the new buzzword, companies are looking for able and determined Data Scientists.
But as always, the quest to get the sexiest and the highest paying job is not an easy task. For acquiring such a demanding position one must be well skilled and experienced.
Don’t freak out! Because now a days a lot of resources and tips are available to be perfect in what you are…
ContinueAdded by Sukanya Mohapatra on April 15, 2016 at 4:30am — No Comments
Photo: Nathaniel Welch
It turns out I’m not the only one who thinks AI alarmism is a bit out of hand. The ITIF Luddite Award nominations include “alarmists, even including respected luminaries such as Elon Musk and Stephen Hawking, touting an artificial intelligence…
ContinueAdded by Brian Rowe on December 23, 2015 at 8:25am — No Comments
Right on cue, this past week heralded in an announcement of OpenAI, a new non-profit started by a number of tech luminaries to spearhead AI research that is publicly accessible. The motivation is that apparently these scions of capitalism lose faith in Adam Smith’s invisible hand…
ContinueAdded by Brian Rowe on December 16, 2015 at 7:00am — No Comments
This tutorial was authored by Jose A Dianes, PhD.
An important step in data analysis is data exploration and representation. In this tutorial we will see how by combining a technique called Principal Component Analysis (PCA) together with Cluster…
ContinueAdded by Codementor on September 1, 2015 at 4:32pm — No Comments
Excerpt reprinted with permission from ckmadvisors.com
This weekend sees Super Bowl XLVIII come to New York (yes, we're well aware that the stadium is technically in New Jersey). Earlier this week one of our data scientists noticed the Empire State Building lights putting on quite a show. A quick search revealed that the iconic building's…
ContinueAdded by Nicholas Hartman on February 2, 2014 at 1:29pm — No Comments
By: Nicholas Hartman, Director at CKM Advisors
Today we'd like to share with you some fun charts that have come out of our internal linguistics research efforts. Specifically, studying weather events by analyzing social media traffic from Twitter.
We do not specialize in social media and most of our data analytics work focuses on the…
ContinueAdded by Nicholas Hartman on December 15, 2013 at 7:24pm — No Comments
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