PhD Defense: "Trustworthy Decentralized Publication, Search and Retrieval in Heterogeneous Networks"

Isai Michel Lombera

May 20th (Monday), 11:15am
Building 406, Room 216

As ubiquitous networked devices continue to play an increased role in the daily lives of people worldwide, there is a growing desire to share ever more information among friends and acquaintances. Traditional centralized search engines, such as Google, Yahoo! and Bing, allow simple and efficient searching for publicly available information; however, there is no similar service or method that enables people to share personal information directly and easily in a distributed and decentralized manner. This Ph.D. dissertation presents a trustworthy decentralized publication, search and retrieval system, named iTrust, that may be accessed over a variety of devices from traditional computer desktops with wired networking to mobile ad-hoc wireless devices, such as mobile phones and tablets. In this Ph.D. dissertation, we describe the functionality and architecture of the iTrust system including: the distribution of metadata and queries, the information retrieval process, and the probabilistic method of distributing messages. We present implementations of the iTrust system for HTTP over the Internet, SMS over cellular networks and Wi-Fi Direct over mobile ad-hoc networks, as well as performance evaluations of the iTrust system. The primary contributions of this Ph.D. dissertation are the novel methods developed to address network challenges such as mobile ad-hoc message routing, peer-to-peer network management, message size constraints, etc. for heterogeneous networks.

About Isai Michel Lombera:

IsaĆ­ Michel Lombera is 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 Louise Moser and Professor Michael Melliar-Smith. He obtained the B.S. degree in Computer Engineering in 2007, and the M.S. degree in Electrical Engineering in 2009, from San Diego State University. He has worked in industry as a Web software developer and as a custom software-hardware designer for embedded systems with an emphasis on video processing using field programmable gate arrays. His research interests include mobile ad-hoc networks, social networks, and information search and retrieval. He has published papers in a number of conferences and journals, and has received an ECE Department Ph.D. Dissertation Fellowship in Spring 2013.

Hosted by: Professor Louise Moser