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Binghua Xie commented on the post, Weekly Question, on the site 8 years, 6 months ago
The biggest takeaway from this class for me was learning various ways of analyzing data for different purposes. This allows to me to see the data in a different perspective and gives me an idea how big data is analyzed in a systematic way. Also, the knowledge that I learned from this class will help my professional career because it enhanced my…[Read more]
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Binghua Xie commented on the post, Weekly Question #5, on the site 8 years, 6 months ago
An example of a business question that could be answered using R and decision trees could include whether or not for a new computer would be popular. The data might need to perform the analysis would be: size, quality, shape, price, weight, function, memory storage capacity, speed, etc. There are so many good predictors that we can use to…[Read more]
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Binghua Xie posted a new activity comment 8 years, 6 months ago
Google uses R to calculate ROI on advertising campaigns; to predict economic activity; to analyze effectiveness on TV ads; and to make online advertising more effective. For example, Google has just released a new package for R: Causallmpact. This package allows Google to resolve the classical conundrum: how can we asses the impact of an…[Read more]
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Binghua Xie posted a new activity comment 8 years, 7 months ago
This is a great graph for three reasons. First, the graph’s format is really consistent, which makes readers easy to follow the information or to find the information they need. Second, there are not too many words in the graph, which gives the graph a “breath space” and makes…[Read more] -
Binghua Xie posted a new activity comment 8 years, 8 months ago
The State Farm could use table joint to figure out which underwriter wrote the most of auto policies for the clients who are at age between 19 to 21. The client’s age and policy type information would be under client table, and underwriter’s name would be under underwriter table. These two tables join together through the client- underwriter table.
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Binghua Xie posted a new activity comment 8 years, 8 months ago
In my opinion, the trickiest things about creating an ERD from a problem description are to identify the entity, primary keys and the attributes that associate with relationships. It is really hard to differ the attributes for entities and the attributes for the relationships. To be honest, I am still confused about this issue, so I really cannot…[Read more]
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Binghua Xie commented on the post, ICE 5.1 Telling a Story through Visualization, on the site 8 years, 9 months ago
As a Risk Management and Insurance major student, I understand that collecting raw data from potential insured such as, their names, addresses, genders and occupations is extremely common and important for insurance companies to determine how much risk each potential individual insured has. The insurance companies compare their potential…[Read more]