The systems and networking group at UCSD engages in a wide range of experimental and theoretical research. Our current projects span fault-tolerant networks and systems, high-speed router design, storage system design, network measurement and traffic analysis, peer-to-peer system design, network security, mobile code architectures, high-performance cluster computing, and wireless networking. Our group consists of eight core faculty, five affiliated faculty (in a broad range of areas including security, machine learning and programming languages) and over 50 graduate students and research staff.

People  |   News  |   Publications  |   Sponsors   |   Internal
Walter Burkhard (emeritus)
Keith Marzullo
Joseph Pasquale
George Porter
Stefan Savage
Alex C. Snoeren
Geoffrey M. Voelker
Yuanyuan Zhou
Scientists and Postdocs
Karl Koscher
Kirill Levchenko
Ken Yocum
Affiliated Faculty
kc claffy
Ranjit Jhala
Sorin Lerner
Lawrence Saul
Hovav Shacham
Steve Swanson
Tajana Šimunić Rosing
Research Staff
Brian Kantor
Cindy Moore
PhD Students
Neha Chachra
Rishan Chen
Michael Conley
Joe DeBlasio
Louis DeKoven
Matthew Der
Brown Farinholt
Tristan Halvorson
Steven Hill
Danny Huang
Peng Huang
Xinxin Jin
Long Jin
Vector Lee
Wilson Lian
Yang Liu
Rob McGuinness
Rossana Motta
Keaton Mowery
Arjun Roy
Dongcai Shen
Edward Sullivan
ZhuoEr Wang
Tianyin Xu
Liqiong Yang
Zhaomo Yang
Jing Zheng
MS Students
Stephan Chenette
Grant Jordan
Jacob Maskiewicz
Ryan Mast
Administrative Staff
Jennifer Folkestad
Kathy Krane (MSO CNS)
Recent Alumni
Mike Conley (Ph.D. 2015)  
Rishi Kapoor (Ph.D. 2015)Google
He Liu (Lonnie) (Ph.D. 2015)Google
Keaton Mowery (Ph.D. 2015)Apple
Malveeka Tewari (Ph.D. 2015)Google
Bhanu Vattikonda (Ph.D. 2015)Apple

Congming Chen (Postdoc 2013–2014)UIUC
Do-kyum Kim (Ph.D. 2014)Google
Feng Lu (Ph.D. 2014)Google
Sarah Meiklejohn (Ph.D. 2014)UCL
Sivasankar Radhakrishnan (Ph.D. 2014)Forward Networks
David Wang (Ph.D. 2014)Google
Jiaqi Zhang (Ph.D. 2014)Whova
Qing Zhang (Ph.D. 2014)Google

Gautam Akiwate (M.S. 2015) PureStorage
Ian Foster (M.S. 2015) Salesforce
Mohit Kothari (M.S. 2015) Groupon
Sen Zhang (M.S. 2015) Google

Chris Gardner (M.S. 2014) Arris
Gen Liu (M.S. 2014) Google
Devin Lundberg (M.S. 2014) Pinterest

[All Alumni]
Recent News

June 5— Today the winners of the inaugural CSE Graduate and Undergraduate awards were announced, and we are thrilled that four students in the Sysnet group were recognized with awards: Neha Chachra was awarded the Graduate Award for Service and the Viceroy of Social Hour, Gautam Akiwate was awarded the Graduate Award for Teaching, Jake Maskiewicz was awarded the Undergraduate Award for Teaching, and Louis Dekoven was a runner up for the Viceroy of Social Hour. Congratulations everyone on all of your award-winning efforts!

June 2Keaton Mowery successfully defended his thesis today titled "Beneath the Attack Surface." He'll be heading up north to join Apple, and we wish him the best of luck. Congratulations Keaton! Keaton Mowery

May 30— This year's spring hike was a 14.25-mile journey across the breadth of Palomar Mountain, from the Boucher Fire Lookout in the east to the Observatory in the west. And not to be missed was Historic Scott's Cabin!   (Pics)   (GPS Track)   (All Hikes)

Rishi Kapoor May 26Rishi Kapoor successfully defended his thesis today on "Leveraging the End-host Stack to Meet Data Center Applications Performance Requirements." He just accepted a position at Google working on data center networking. Congratulations Rishi!

May 22Malveeka Tewari successfully defended her thesis today on "Enabling Fine-grained Flow Management in Data Centers". She'll be bringing her talents in developing networked systems to Google in Mountain View starting this summer. Congratulations Malveeka! Malveeka Tewari

Mike Conley May 22Mike Conley successfully defended his thesis today on "Efficient I/O in Next-Generation Clusters". As part of his dissertation research, Mike helped to break numerous world records in sorting data, which is one of the oldest and most common problems in the field. Congratulations Mike!

April 11— This year's winter hike was an 8-mile off-trail rambling loop from Mountain Palm Springs to Indian Valley and back around through Indian Gorge in Anza Borrego, with some bouldering and scrambling up a ridge thrown in for kicks.   (Pics)   (GPS Track)   (All Hikes)

March 16He Liu successfully defended his thesis today on "A High Performance Hybrid ToR for Data Centers". After many a sojourn across systems, security, and networking, Lonnie decided to end his graduate adventure in the data center. (And, yes, he's joining Google.) Congratulations and good luck, Lonnie! He Liu

November 15— The Fall hike this year was a 5.5-mile loop on Woodson Mountain, hiking the East Approach to potato chip rock and then back down along the Fry-Koegel trail. Views were great, and we had a record number of over 30 hikers!   (Pics)   (GPS Track)   (All Hikes)

Qing Zhang October 30— Continuing the trend, Qing Zhang successfully defended her dissertation today on "Utilizing Source Information to Detect and Prevent Online Fraud". In December, Qing also joins Google...although she will be bolstering the Southern California alumni contingent at Google Irvine. Congratulations and good luck, Qing!

October 16— The Fall series continue as Jiaqi Zhang successfully defended his dissertation today on "Software Configuration Learning and Recommendation". Jiaqi joins local San Diego startup Whova to work with the UCSD founders on applying technical networking to professional networking. Congratulations and good luck, Jiaqi! Jiaqi Zhang

David Wang September 30— Today David Wang became the next student in the Fall Dissertation Series, defending his dissertation on "A Comprehensive Approach to Undermining Search Result Poisoning". Soon David will join the ranks at Google Etsy, continuing his work dealing with Internet service abuse. Congratulations and good luck, David!

September 3— Today Do-kyum Kim successfully defended his dissertation on "Topic Modeling of Hierarchical Corpora". In a rare and unusual move, he will continue to innovate in applying machine learning to interesting applications at Google. Congratulations and good luck, Do-kyum! Do-kyum Kim

Feng Lu August 5Feng Lu successfully defended his thesis today on "Downclocking WiFi to Improve Energy Efficiency in Mobile Devices". Next month he embarks on the good ship Google in Mountain View to continue his adventures in improving network performance. Congratulations and good luck, Feng!
[All News]
Recent Publications

Security by Any Other Name: On the Effectiveness of Provider Based Email Security, Ian Foster, Jon Larson, Max Masich, Alex C. Snoeren, Stefan Savage, and Kirill Levchenko, Proceedings of the ACM Conference on Computer and Communications Security, Denver, Colorado, October 2015.

Empirical Analysis of Search Advertising Strategies, Bhanu Vattikonda, Vacha Dave, Saikat Guha, and Alex C. Snoeren, Proceedings of the ACM Internet Measurement Conference, Tokyo, Japan, October 2015.

Revisiting Internet Background Radiation for Opportunistic Network Analysis, Karyn Benson, Alberto Dainotti, k. c. claffy, Alex C. Snoeren, and Michael Kallitsis, Proceedings of the ACM Internet Measurement Conference, Tokyo, Japan, October 2015.

From .academy to .zone: An Analysis of the New TLD Land Rush, Tristan Halvorson, Matthew F. Der, Ian Foster, Stefan Savage, Lawrence K. Saul, and Geoffrey M. Voelker, Proceedings of the ACM Internet Measurement Conference, Tokyo, Japan, October 2015.

Who is .com? Learning to Parse WHOIS Records, Suqi Liu, Ian Foster, Stefan Savage, Geoffrey M. Voelker, and Lawrence K. Saul, Proceedings of the ACM Internet Measurement Conference, Tokyo, Japan, October 2015.

Affiliate Crookies: Characterizing Affiliate Marketing Abuse, Neha Chachra, Stefan Savage, and Geoffrey M. Voelker, Proceedings of the ACM Internet Measurement Conference, Tokyo, Japan, October 2015.

Achieving Cost-efficient, Data-intensive Computing in the Cloud, Michael Conley, Amin Vahdat, and George Porter, Proceedings of the ACM Symposium on Cloud Computing (SOCC), Kohala Coast, Hawaii, August 2015.

Hey, You Have Given Me Too Many Knobs! -- Understanding and Dealing with Over-Designed Configuration in System Software, Tianyin Xu, Long Jin, Xuepeng Fan, Yuanyuan Zhou, Shankar Pasupathy, and Rukma Talwadker, Proceedings of the 10th Joint Meeting of the European Software Engineering Conference and the ACM SIGSOFT Symposium on the Foundations of Software Engineering (ESEC/FSE'15), Bergamo, Italy, August 2015.

Inside the Social Network's (Datacenter) Network, Arjun Roy, Hongyi Zeng, Jasmeet Bagga, George Porter, and Alex C. Snoeren, Proceedings of the ACM SIGCOMM Conference, London, England, August 2015.

Interpreting Advertiser Intent in Sponsored Search, Bhanu C. Vattikonda, Santhosh Kodipaka, Hongyan Zhou, Vacha Dave, Saikat Guha, and Alex C. Snoeren, Proceedings of the ACM SIGKDD Conference, Sydney, Australia, August 2015.

Nanophotonics: Technology and Application, Andrew Grieco, George Porter, and Yeshaiahu Fainman, Proceedings of the IEEE Optical MEMS and Nanophotonics Conference, Jerusalem, Israel, August 2015.

Framing Dependencies Introduced by Underground Commoditization, Kurt Thomas, Danny Yuxing Huang, David Wang, Elie Bursztein, Chris Grier, Tom Holt, Christopher Kruegel, Damon McCoy, Stefan Savage, and Giovanni Vigna, Proceedings of the Workshop on the Economics of Information Security (WEIS), Delft, The Netherlands, June 2015.

ConfValley: A Systematic Configuration Validation Framework for Cloud Services, Peng Huang, William J. Bolosky, Abhishek Singh, and Yuanyuan Zhou, Proceedings of the ACM European Conference in Computer Systems (EuroSys), Bordeuax, France, April 2015.

Scheduling for Data Center Networks with Reconfiguration Delay, Chang-Heng Wang, Tara Javidi, and George Porter, Proceedings of the IEEE Infocom Conference, Hong Kong, China, April 2015, pages 1-9.

Managing Contention with Medley, Feng Lu, Geoffrey M. Voelker, and Alex C. Snoeren, IEEE Transcations on Mobile Computing 14(3), March 2015.

Achieving Congestion Diversity in Multi-hop Wireless Mesh Networks, Abhijeet A. Bhorkar, Tara Javidi, and Alex C. Snoeren, IEEE Transcations on Mobile Computing 15(3), March 2015.

FTXen: Making Hypervisor Resilient to Hardware Faults on Relaxed Cores, Xinxin Jin, Soyeon Park, Tianwei Sheng, Rishan Chen, Zhiyong Shan, and Yuanyuan Zhou, Proceedings of the 21st IEEE International Symposium on High Performance Computer Architecture (HPCA'15), Bay Area, CA, February 2015.

CQIC: Revisiting Cross-Layer Congestion Control for Cellular Networks, Feng Lu, Hao Du, Ankur Jain, Geoffrey M. Voelker, Alex C. Snoeren, and Andreas Terzis, Proceedings of the 16th ACM International Workshop on Mobile Computing Systems and Applications (HotMobile), Sante Fe, NM, February 2015.

Too LeJIT to Quit: Extending JIT Spraying to ARM, Wilson Lian, Hovav Shacham, and Stefan Savage, Proceedings of the Network and Distributed System Security Symposium (NDSS), San Diego, CA, February 2015.

[All Publications]
Center for Networked Systems (CNS)         Cooperative Association for Internet Data Analysis (CAIDA)       Center for Wireless Communications (CWC)CWC        San Diego Super Computer Center (SDSC)        California Institute for Telecommunications and Information Technology (Cal-IT2) CalIT(2)
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