Andy Wang 269 Love Building Department of Computer Science Florida State University Tallahassee, FL 32306-4530

[Biographical Sketch] [CV] [Research] [Publications] [Teaching] [Links]

Andy Wang received his Ph.D. and M.S. in computer science from UCLA in 2003 and 1998, and his B.S. from UC Berkeley in 1995. He joined the Department of Computer Science at Florida State University as an Assistant Professor in 2003. His research interests include file systems, optimistic peer replication, performance evaluation, ad hoc network routing, operating systems, and distributed systems.

Andy Wang's research theme revolves around the management of data flows.

• TrueErase involves tracking and propagating information, so that traces of a file can be securely deleted throughout the legacy storage data path.
• His work in real-time storage domain involves throttling the data flow to meet timing constraints.
• Power-Aware RAID (PARAID) redirects requests to data replicated at unused portions of disks, thereby creating opportunities to power down disks and save energy.
• Permuted states offer a compact representation of distributed states and thus can be applied to analyze optimistic replication systems with an exponential number of ways to propagate data updates.
• Electric-field-based routing allows mobile computers to form disjointed communication paths without explicit coordination and global knowledge.
• Conquest, a disk-persistent-RAM file system, uses specialized data paths to memory and disk storage to achieve drastic performance improvements.

Diesburg12

Sarah Diesburg, Christopher Meyers, Mark Stanovich, Michael Mitchell, Justin Marshall, Julia Gould, An-I Andy Wang, and Geoff Kuenning. TrueErase: Per-file Secure Deletion for the Storage Data Path Proceedings of the 2012 Annual Computer Security Applications Conference, 2012. [19% acceptance rate] Supersedes Technical Report TR-111020, Department of Computer Science, Florida State University, October 2011.

Diesburg10

Sarah Diesburg and An-I Andy Wang. A Survey of Confidential Data Storage and Deletion Methods. ACM Computing Surveys (CSUR), 43(1), 2010. Supersedes Technical Report TR-080508, Department of Computer Science, Florida State University, May 2008.

Stanovich10

Mark Stanovich, Theodore Baker, An-I Andy Wang, and Michael Gonzalez Harbour, Defects of the POSIX Sporadic Server and How to Correct Them. Proceedings of the 16th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS), April 2010. [22% acceptance rate] Supersedes Technical Report TR-091026, Department of Computer Science, Florida State University, October 2009.

Qian08

Jin Qian, Christopher Meyers, and An-I Andy Wang. A Linux Implementation Validation of Track-Aligned Extents and Track-aligned RAIDs. Proceedings of the 2008 USENIX Annual Technical Conference (ATC), June 2008. [15% acceptance rate]

Stanovich08

Mark J. Stanovich, Theodore P. Baker, and An-I Andy Wang. Throttling On-disk Schedulers to Meet Soft-real-time Requirements. Proceedings of the 14th IEEE Real-Time and Embedded Technology and Applications Symposium (RTAS), April 2008. [24% acceptance rate] Supersedes Technical Report TR-071025, Department of Computer Science, Florida State University, October 2007.

Weddle07b

Charles Weddle, Mathew Oldham, Jin Qian, An-I Andy Wang, Peter Reiher, Geoff Kuenning. PARAID: A Gear-shifting Power-Aware RAID. ACM Transactions on Storage (TOS), 3(3), October 2007 [invited, top 7% from the USENIX FAST conference]

Mahajan07

Atulya Mahajan, Niranjan Potnis, Kartik Gopalan, and An-I Andy Wang. Modeling VANET Deployment in URBAN Settings. Proceedings of the 10th ACM/IEEE International Symposium on Modeling Analysis, and Simulation of Wireless and Mobile Systems (MSWiM), October 2007. [25% acceptance rate]

Wang07

An-I Andy Wang, Geoff Kuenning, and Peter Reiher. Using Permuted States and Validated Simulation to Analyze Conflict Rates in Optimistic Replication. SCS Simulation: Transactions of the Society for Modeling and Simulation International, 83(8), pp. 551-569, August 2007. [25% acceptance rate]

Wang06

An-I Andy Wang, Geoff Kuenning, Peter Reiher, and Gerald Popek. The Conquest File System: Better Performance Through a Disk/Persistent-RAM Hybrid Design. ACM Transactions on Storage (TOS), 2(3), pp. 309-348, August 2006. [24% acceptance rate for the original USENIX conference paper]

Nguyen04

Nam T. Nguyen, An-I Andy Wang, Geoffrey H. Kuenning, Peter Reiher. Electric-Field-Based Routing: A Reliable Framework for Routing in MANETs, ACM SIGMOBILE Mobile Computing and Communications Review (MC2R), 8(2), pp. 35-49, April 2004. <http://www.cs.fsu.edu/~awang/papers/mc2r2004a.html>

FSU

COP 5611 (advanced operating systems) SP13

CIS 5930-03 (computer systems performance analysis) SP09 SP11

COP 5611 (advanced operating systems) SP04, SP05, SP06, SP07, SP08, SP09, SP10, SP12

COP 5641 / CIS 4930 (kernel and device driver programming) SU07, SU08, SU10

COP 4610 / CGS 5765 (operating systems) FA04, FA05, FA06, FA07, SP08, FA08, FA09, FA10, FA12

CIS 6935 (energy-aware storage systems) SP07

CIS 6935 (LENS seminar series) SP05

CIS 6935 (operating systems reading group) SP04

COP 4530 / CGS 5425 (data structures, algorithms, and generic programming) FA03

UCLA

CS111 (operating systems) SP03

CS111 Lab (an introduction to Linux kernel development) WI/SP00

My collection of fun links Random art gallery A Message from Gerald Popek My previous life