[ COVER OF THE WEEK ]
Complex data Source
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[ FEATURED COURSE]
This course includes interactive demonstrations which are intended to stimulate interest and to help students gain intuition about how artificial intelligence methods work under a variety of circumstances…. more
[ FEATURED READ]
Python for Data Analysis is concerned with the nuts and bolts of manipulating, processing, cleaning, and crunching data in Python. It is also a practical, modern introduction to scientific computing in Python, tailored f… more
[ TIPS & TRICKS OF THE WEEK]
Data Have Meaning
We live in a Big Data world in which everything is quantified. While the emphasis of Big Data has been focused on distinguishing the three characteristics of data (the infamous three Vs), we need to be cognizant of the fact that data have meaning. That is, the numbers in your data represent something of interest, an outcome that is important to your business. The meaning of those numbers is about the veracity of your data.
[ DATA SCIENCE Q&A]
Q:What is the Law of Large Numbers?
A: * A theorem that describes the result of performing the same experiment a large number of times
* Forms the basis of frequency-style thinking
* It says that the sample mean, the sample variance and the sample standard deviation converge to what they are trying to estimate
* Example: roll a dice, expected value is 3.5. For a large number of experiments, the average converges to 3.5
[ VIDEO OF THE WEEK]
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[ QUOTE OF THE WEEK]
What we have is a data glut. Vernon Vinge
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[ FACT OF THE WEEK]
In 2015, a staggering 1 trillion photos will be taken and billions of them will be shared online. By 2017, nearly 80% of photos will be taken on smart phones.