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498 – Community, Social, and Anomaly Detection in Networks
An ROC Approach to Estimating Interpersonal Networks
C. Deniz Yenigun
Istanbul Bilgi University
Gunes Ertan
Koc University
Michael Siciliano
University of Illinois at Chicago
This paper focuses on estimating interpersonal networks from a random sample of individuals that belong to the network. A design known as Cognitive Social Structures (CSS) asks individuals to report on their own ties as well as their perceptions of the networks that surround them. Based on data collected using CSS design, first section of the paper dissects cognitive errors as errors of commission and omission, and displays the relationship between the two. Second section of the paper uses a Reciever Operating Characteristic (ROC) based approach to estimate networks from a small sample of randomly selected individuals, while controlling for both types of errors. Results from a numerical study are provided to illustrate the performance of the suggested method.