PhD Defense: "Ph.D. Defense: “Trustworthy Distributed Search and Retrieval over the Internet”"

Yung-Ting Chuang

May 3rd (Friday), 2:00pm
Building 406, Room 206

In this Ph.D. Dissertation, first we address the design and implementation of the decentralized and distributed search and retrieval system, named iTrust, to avoid the problems of censorship and filtering of information on the Internet. Designing such a distributed search and retrieval system introduces the difficulty of inferring information that cannot be measured directly. Examples include estimating the proportion of malicious nodes in the network, and estimating the size of the membership when the network has a lot of churn. This Ph.D. Dissertation describes detection and defensive adaptation algorithms to protect against malicious nodes in the network, adaptive membership management protocols when the membership has a lot of churn, and statistical inference algorithms to manage the network when both the membership churn and the proportion of malicious nodes are high. The primary contribution of this Ph.D. Dissertation is the use of statistical inference techniques to estimate quite accurately network parameters that cannot be measured directly in iTrust and potentially in many other kinds of networks and networking applications.

About Yung-Ting Chuang:

photo of yung-ting chuang Yung-Ting Chuang is currently a Ph.D. candidate in the Department of Electrical and Computer Engineering at the University of California, Santa Barbara, working under the supervision of Professor Michael Melliar-Smith and Professor Louise Moser. She received her B.S. degree in 2006 and M.S. degree in 2008 from UCSB. Her research interests lie in the fields of Information search and retrieval, decentralized and distributed systems, membership management under churn, performance evaluation, statistical data analysis and inference, and trustworthiness. She has published papers in a number of conferences, and won Best Paper Awards award in both 2012 International Conference on Information Network and 2013 IAENG International Conference on Computer Science. Yung-Ting received an ECE Department Ph.D. Dissertation Fellowship in Spring 2013.

Hosted by: Professor Michael Melliar-Smith