Joshua J Affainie

My most important take away from this class is how much more powerful a visualization is rather than just raw data.A well created visual gives the audience a lot of information and knowledge in a quick way, looking at raw numbers would take days to extract the same insight. The best way to describe this class is that a student will be using…[Read more]

An example of a data-driven service that I use regularly could be Snapchat. Each row could be an individual user and the columns can be the number of snaps sent within a day, times that snaps were sent at. How many friends they have, location sent at, and who their best friends are.

http://fivethirtyeight.com/features/villanova-will-die-or-live-by-the-three/
The article talks about how Villanova’s basketball team and how they can succeed in the final four of the NCAA basketball tournament. it uses the 3-point shooting percentage as a measure of the team’s success and how they will have a much higher chance winning the championship.

As a commuter, I use a time KPI measuring how on time my train normally gets to campus from my house. It is specific for obvious reasons are measureable regards to whether or not they hit the achieved time. It is also relevant because I need to be on time to get to class. My KPI is completely measured on time performance

I have worked in excel on my different occasions, but I have never made any of these mistake.However, I would say that the most common mistake people should try to avoid is to work on a database without doing a full backup first. It is important to save your work that way you do not have to do it all over again.

http://www.businessinsider.com/after-stock-crash-tableau-cfo-digs-in-2016-2

Business Insider emphasized on how tableau stock dropped 50% in a single day.They have a $2.2 billion loss in market capitalization. It was beating its 4th quarter expectations. The massive loss seems to stem from earnings expectations for the year ahead.

I think “Be Skeptical” is the most important. I agree that we do not really question our own work. But we will take the first idea and the answer and go with it. However the best information comes for taking your original idea or outcome a few steps further your ideas. It is important to question other people work or our own work.

I think that the most important takeaway from last week’s discussion was that bias is everywhere in our lives. In last week’s we found that we can find reviews on either Yelp or Google review. In my opinion, bias are certain because reviews are very smart ideas based on personal experiences. For instance, before I go see a movie I will like to…[Read more]

http://www.forbes.com/sites/ciocentral/2012/07/05/best-practices-for-managing-big-data/#41a2d895ef02

I found this article interesting because many business use data to make profit. However, some of them are not familiar with the data they have gathered, and that makes their business decline. If they use the data they will earn more money.

What dataset did you find
National student loans data system
Where did you find it
http://catalog.data.gov/dataset/national-student-loan-data-system
Why did you think it was interesting
It was interesting to because it explains how many students get grants from the government .
What did you learn from the data
I learned that even though the…[Read more]

A conventional wisdom is a severally accepted theory or belief. An example of conventional wisdom is that social media lowers teenage’s intelligence. In order to test this,you would need to split the teens into groups of those who do not use social media, those who spend several hours on social media, and those who are frequently online. You…[Read more]