Category Archives: Data mining and analytics

Bird Strikes

Author: Ting Lei 

1. Introduction

The event of an airborne animal hitting an airplane in flight is referred as bird strike. Although bird strikes are a lesser hazard to aviation than some other well-known hazards such as air turbulence and icing, it still poses a sizable threat to airline safety and do present risk that needs to be addressed. According to Bird Strike Committee USA, wildlife strikes cause over $650 million annually in damage to U.S. civil and military aviation.

The goal of this article is to discuss some of the characteristics of bird strikes, raise the awareness of this issue, and help reduce the likelihood of bird strikes.… Read more

Investigation of Obesity in the United States

Author: Ting Lei

1. Introduction

Obesity is one of the biggest health problems across the United States. According to the data from the National Health and Nutrition Examination Survey:

  • More than 1 in 3 adults are considered to be obese.
  • More than 1 in 20 adults are considered to have extreme obesity.
  • More than 1 in 6 teenagers age from 6 to 19 are considered to be obese.

Obesity is usually accompanied with various other diseases, which combined kill millions of people per year. These diseases include type 2 diabetes, heart disease, high blood pressure, nonalcoholic fatty liver disease, osteoarthritis, cancer, stroke and various others.… Read more

NBA Home Court Advantage Analysis

Author: Ting Lei 

1. Introduction

Every sports fan knows that their favorite teams have more chance to win on the home court; and for professional athletes, they will surely make every effort to secure home-court victories in the regular season. The goal of this article is to 1) determine which teams in the NBA have the best home-court advantage; 2) provide some insights into how does the number of rest days of home and away teams impact the home-court advantage; as well as 3) determine what are some other possible factors to home-court advantage from 2011-2012 through 2015-2016 seasons.

Why do we choose NBA among the four major American pro sports?… Read more

Find a Living Place with the Help of Data Visualization Techniques

Author: Swaminathan Ramesh Sashi

1. Introduction

When you move into a new city, do you wonder which area is the best for living? In this article, I use data visualization techniques to help a family find the best area to live in Seattle. Although other cities can also be analyzed in a similar way, Seattle is chosen as an example because of ready availability of public datasets.

2. Analysis

2.1 Software used

Tableau 9.2, Excel, and R.

2.2 Dataset

The dataset is built from multiple sources. These sources are excel sheets containing various bits of data that make up the problem set.… Read more

Data Visualization with 911 Phone Records

Author: Swaminathan Ramesh Sashi

1. Introduction

Data visualization is a useful tool to analyze exploratory data and display the results. This article attempts to explain a few data visualization exercises which aim to analyze a composite dataset consisting of 911-phone records as well as the subsequent police report filings.

2. Analysis

2.1 Software used

Tableau 9.2 and Excel.

2.2 Dataset

The dataset consists of the following variables derived from the website of UW Madison Police Department:
Incident number (a unique id), incident date, incident time, location, zip codes, significance, incident description, and incident type. The dataset includes data from the years 2012-2015.… Read more