AssignYL Analysis

VAST 2018 Mini Case 3: Net of Justice Has Long Arms

BACKGROUND

DATA PREPARATION

EXPLORATIONS

NETWORK ANALYSIS

CONCLUSIONS

Narrow down the Suspects

Findings	Visualization Evidence
Closeness & Betweeness With pieces of information gained from the exploration part, we may tell that there are people who are involved in suspicious connections without any interactions. So for the first step of the analysis, we may filter out people by degree less than 6. Closeness: Closeness represents the average shortest path scores from one node to another. The higher closeness of a node, the more center a node is. People with higher closeness centrality in the graph tend to have faster influence over the network. As we can tell from the graph of node size plotted by closeness, Meryl Pastuch, Lindsy Henion, Richard Fox, and Jose Ringwald are people with relatively high closeness, and Melita Scarpaci is someone with high closeness despite the low weight. Betweenness: Betweenness measures the number of times a node has lied on the shortest path between 2 other nodes. The higher betweenness of a node, the more influential to the flow system that node is. This is implying that Lindsy Henion, Jose Ringwald, Richard Fox and Tobi Gatlin - the group of people with high betweenness - may be the ones who hold authority within a group. Speculations: Melita Scarpaci - a influencer but maybe from higher management Richard Fox - a practioner, a popular staff in Kasios, a leader for his group Meryl Pastuch, Lindsy Henion - leaders of their groups, but their team may have closly work with Richard's team Rosalia Larroque & Kerstin Belveal - staffs work for the purchasing group, they are involved with all of the suspicious purchases and their email communications are the strongest among all
Break down by Months Febuary & December: All communications has been increasing over the past 3 years, except for Febuary and Decemeber. This may require further researches. Meetings: the number of meetings has been increasing drastically throughout the years. This is implying that people in Kasios are gradually shifting toward face-to-face communications. A more interesting question could be: what's causing the face-to-face shift since there is not much expansion in Kasios.