Leah Herman

1) Name and describe a business question that you could answer using a decision tree. What data would you collect to perform the analysis? Don’t use an example we’ve covered in class.

A business question that could be answered using a decision tree could be used to determine whether or not someone should be accepted to get auto insurance in a c…[Read more]

Companies such as twitter use R for data visualization reasons. For example, twitter uses R to create a geocoded map to show where heavy traffic from users who use geotags come from. This map also shows how intense (dense) the usage of geotags are in certain areas.

http://blog.revolutionanalytics.com/2013/05/the-arteries-of-the-world-in-tweets.html

Budget Grocery Shopping for College Students

This infographic does a nice job of giving college students tips on how to save money while on a budget, in addition to other suggestions for student who want to stay healthy. It numbers each tip which makes the graphic easy to follow. The infographic also shows data…[Read more]

If you were using a realty database and you wanted to look up customers who purchased homes in a certain area you could use a join between a customer table and a table of purchased houses. The customer table would hold data pertaining to the customer such as income, customerID, FirstName, LastName, and the purchased housing table would include…[Read more]

Personally, the trickiest part about creating an ERD is the determining the cardinality between the entities. This is difficult because it can be subjective, and many times it can rely on a case by case scenario. In particular, determining if a situation is one to many or 0 to many can sometimes change between situations. I usually figure out…[Read more]

An important part of eCommerce is advertising. Companies such as Facebook and Google (YouTube) use data collected from customers to create personalized ads that are tailed to each customer. For example, if someone has recently been shopping for shoes, the software will in return display more shoe ads for a person. These tailored ads create a…[Read more]