2017


Wu-chang Feng, "CyberPDX: A Camp for Broadening Participation in Cybersecurity", USENIX Advances in Security Education (ASE), August 2017. pdf | Prezi.

2016


Wu-chang Feng, "A Divergent-themed CTF and Urban Race for Introducing Security and Cryptography", USENIX Advances in Security Education (ASE), August 2016. pdf | Prezi.

2015


Wu-chang Feng, "A Scaffolded, Metamorphic CTF for Reverse Engineering", USENIX Summit on Gaming, Games, and Gamification in Security Education (3GSE), August 2015. pdf | Prezi | Screencast.

2014


Nirupama Bulusu, Wu-chang Feng, "Personalized Health and Wellness: A Vision for The Next Decade", NSF/NIH National Workshop on Computing Challenges in Future Mobile Health (mHealth) Systems and Applications, October 2014. pdf.

Akshay Dua, Thai Bui, Tien Le, Nhan Huynh, Wu-chang Feng, "MetaCAPTCHA: A Metamorphic Throttling Service for the Web", NPSec, October 2014. pdf.

Akshay Dua, Nirupama Bulusu, Wen Hu, Wu-chang Feng, "Combating Software and Sybil Attacks to Data Integrity in Crowd-Sourced Mobile Embedded Systems", ACM Transactions on Embedded Computing Systems (TECS), 2014. pdf.

2012


Wu-chang Feng, Ed Kaiser, "System and Methods for Protecting Against Denial-of-Service Attacks", USPTO Publication #8,321,955, November 2012. link

Wu-chang Feng, "System and Methods for Protecting Against Denial-of-Service Attacks", USPTO Publication #8,171,562, May 2012. link

Tien Le, Akshay Dua, Wu-chang Feng, "kaPoW Plugins: Protecting Web Applications Using Reputation-based Proof-of-Work", in Proceedings of WebQuality 2012, April 2012. pdf

2011


Sam Moffatt, Akshay Dua, Wu-chang Feng, "SpotCheck: An Efficient Defense Against Information Exposure Cheats", in Proceedings of NetGames 2011, October 2011. pdf Slides: ppt

Akshay Dua, Nirupama Bulusu, Wu-chang Feng, "Privacy-preserving Online Mixing of High Integrity Mobile Multi-user Data", in Proceedings of SecureComm 2011, September 2011. pdf

2010


Akshay Dua, Nirupama Bulusu, Wu-chang Feng, "Catching Cheats with Interactive Proofs: Privacy-preserving Crowd-sourced Data Collection Without Compromising Integrity", in Proceedings of PhoneSense 2010, November 2010. pdf

Wu-chang Feng, Ed Kaiser, "kaPoW Webmail: Effective Disincentives Against Spam", in Proceedings of CEAS 2010, July 2010. pdf Slides: pdf

Chris Chambers, Wu-chang Feng, Sambit Sahu, Debanjan Saha, David Brandt, "Characterizing Online Games", IEEE/ACM Transactions on Networking, vol. 18, no. 3, June 2010. pdf

Ed Kaiser, Wu-chang Feng, "Helping TicketMaster: Changing the Economics of Ticket Robots with Geographic Proof-of-Work", in Proceedings of Global Internet 2010, March 2010. pdf

2009


Ed Kaiser, Wu-chang Feng, "PlayerRating: A Reputation System for Multiplayer Online Games", in Proceedings of NetGames 2009, November 2009. pdf

Ed Kaiser, Wu-chang Feng, Travis Schluessler, "Fides: Remote Anomaly-Based Cheat Detection Using Client Emulation", in Proceedings of ACM CCS 2009, November 2009. Paper: pdf Slides: ppt

Akshay Dua, Nirupama Bulusu, Wu-chang Feng, Wen Hu "Towards Trustworthy Participatory Sensing", in Proceedings of HotSec 2009, August 2009. Paper: pdf

2008


Wu-chang Feng, Travis Schluessler, "The Case for Network Witnesses", in Proceedings of Workshop on Secure Network Protocols (NPSec) 2008, October 2008. Paper: pdf Slides: ppt | pdf

Wu-chang Feng, Ed Kaiser, Travis Schluessler, "Stealth Measurements for Cheat Detection in On-line Games", in Proceedings of NetGames 2008, October 2008. pdf

Ed Kaiser, Wu-chang Feng, "mod_kaPoW: Protecting the Web with Transparent Proof-of-Work", in Proceedings of Global Internet 2008, April 2008. pdf

Ashvin Goel, Kamran Farhadi, Kenneth Po, Wu-chang Feng, "Reconstructing System State for Intrusion Analysis", ACM Operating Systems Review, vol. 42, no. 3, April 2008. Paper: pdf| ppt

2007


Wu-chang Feng, David Brandt, Debanjan Saha, "A Long-term Study of a Popular MMORPG", in Proceedings of NetGames 2007, September 2007. Paper: pdf, Slides: ppt | pdf

Wu-chang Feng, "What's Next in Networked Games?", NetGames 2007 keynote talk, November 2007. ppt | pdf

Wu-chang Feng, Ed Kaiser, "The Case for Public Work", in Proceedings of Global Internet 2007, May 2007. pdf

Ashvin Goel, Wu-chang Feng, Wu-chi Feng, David Maier, "Automatic High-Performance Reconstruction and Recovery", Computer Networks, vol. 51, no. 5, pp. 1361-1377, April 2007. pdf

2006



Chris Chambers, Wu-chang Feng, Wu-chi Feng, "Towards Public Server MMOs", in Proceedings of NetGames 2006, October 2006. pdf | ppt

Jie Huang, Wu-chi Feng, Nirupama Bulusu, Wu-chang Feng, "Cascades: Scalable, Flexible, and Composable Middleware for Multimodal Sensor Networking Applications", in MMCN 2006, January 2006.

2005



Wu-chang Feng, "Got MIPS?  The Need for Speed in On-line Games", SC|05 Masterworks invited talk, November 2005. pdf

Wu-chang Feng, Francis Chang, Wu-chi Feng, Jonathan Walpole, "A Traffic Characterization of Popular On-line Games", IEEE/ACM Transactions on Networking, vol. 13, no. 3, June 2005. pdf

Wu-chang Feng, Ed Kaiser, Wu-chi Feng, Antoine Luu, "The Design and Implementation of Network Puzzles" , in IEEE INFOCOM 2005, March 2005. (Paper: pdf | Slides: ppt, sxi)

Chris Chambers, Wu-chang Feng, Sambit Sahu, Debanjan Saha, "Measurement-based Characterization of a Collection of On-line Games", in Internet Measurement Conference 2005, October 2005. pdf
Winner of Best Student Paper Award

Chris Chambers, Wu-chang Feng, "Patch Scheduling for On-line Games", in NetGames 2005, October 2005. pdf

Chris Chambers, Wu-chang Feng, Wu-chi Feng, Debanjan Saha, "Mitigating Information Exposure to Cheaters in Real-Time Strategy Games", in ACM NOSSDAV 2005. pdf

Wu-chi Feng, Nirupama Bulusu, Wu-chang Feng, "Dissecting the Video Sensing Landscape", in ACM NOSSDAV 2005.

Ashvin Goel, Wu-chang Feng, David Maier, Wu-chi Feng, Jonathan Walpole, "Forensix: A Robust, High-Performance Reconstruction System" , in International Conference on Distributed Computing Systems Security Workshop (SDCS-2005) June 2005. (Paper: pdf | Full version: pdf)

Francis Chang, Wu-chang Feng, Wu-chi Feng, Kang Li," Chapter 3: Efficient Packet Classification with Digest Caches", Network Processor Design: Issues and Practices, vol. 3, Ed. P. Crowley, M. Franklin, H. Hadimioglu, P. Onufryk, Morgan Kaufmann Publishers, 2005, ISBN: 0-12-088576-3. pdf

Wu-chi Feng, Brian Code, Ed Kaiser, Wu-chang Feng, Mickael Le Baillif, "Panoptes: Scalable Low-Power Video Sensor Networking Technologies", ACM Transactions on Multimedia Computing, Communications, and Applications, vol. 1, no. 2, May 2005.

Jim Snow, Wu-chi Feng, Wu-chang Feng, "A Low-Power Time Division Multiple Access MAC Protocol for 802.11 Wireless Networks", IEEE Wireless Communications and Networking Conference, March 2005. pdf

2004


Deepa Srinivasan, Wu-chang Feng, "Performance Analysis of Multi-Dimensional Packet Classification on Programmable Network Processors", in IEEE LCN 2004, November 2004. (Paper pdf | Slides ppt)

Ed Kaiser, Wu-chang Feng, Wu-chi Feng, Antoine Luu, "Reducing Malicious Traffic with IP Puzzles", in ACM SIGCOMM 2004 (poster session) and USENIX Security 2004 (poster session), August 2004. pdf

Francis Chang, Wu-chang Feng, Kang Li, "Approximate Caches for Packet Classification", in Proc. IEEE INFOCOM 2004, March 2004. pdf

Francis Chang, Wu-chang Feng, Wu-chi Feng, Kang Li, "Efficient Packet Classification with Digest Caches", in Proc. of the Third Workshop on Network Processors & Applications (NP3), Feburary 2004. (Paper pdf | Slides ppt)

2003


Wu-chang Feng, "The Case for TCP/IP Puzzles", in Proc. of ACM SIGCOMM Workshop on Future Directions in Network Architecture (FDNA-03), August 2003. pdf

Wu-chang Feng, Ashvin Goel, Abdelmajid Bezzaz, Wu-chi Feng, Jonathan Walpole, "TCPivo: A High-Performance Packet Replay Engine", in Proc. ACM SIGCOMM Workshop on Models, Methods, and Tools for Reproducible Network Research (MoMeTools), August 2003. pdf

Wu-chang Feng, Wu-chi Feng, "On the Geographic Distribution of On-line Game Servers and Players", in Proc. of NetGames 2003, May 2003. (Paper pdf | Slides sxi)

Ashvin Goel, Mike Shea, Sourabh Ahuja, Wu-chang Feng, Wu-chi Feng, David Maier, Jonathan Walpole, "Forensix: A Robust, High-Performance Reconstruction System ", in 19th Symposium on Operating Systems Principles (SOSP) (poster session), October 2003.  (Abstract pdf | Poster pdf | Poster sxi)

Chris Chambers, Wu-chang Feng, Wu-chi Feng, Debanjan Saha, "A Geographic Redirection Service for On-line Games", in Proc. ACM Multimedia 2003 (short paper), November 2003.  (Abstract pdf | Poster ppt)

Wu-chi Feng, Brian Code, Ed Kaiser, Mike Shea, Wu-chang Feng, "Panoptes: A Scalable Architecture for Video Sensor Networking Applications", in Proc. ACM Multimedia 2003, November 2003.  (Paper pdf | Slides ppt)

Kang Li, Francis Chang, Damien Berger, Wu-chang Feng, "Architectures for Packet Classification Caching", in Proc. of IEEE International Conference on Networks (ICON), September 2003. pdf

Francis Chang, Wu-chang Feng, Kang Li, "Approximate Caches for Packet Classification", in ACM SIGCOMM (poster session), August 2003. (Abstract pdf | Poster pdf)

Francis Chang, Wu-chang Feng, "Modeling Player Session Times of On-line Games", in Proc. of NetGames 2003, May 2003. (Paper pdf | Slides sxi)

2002


Wu-chang Feng, Francis Chang, Wu-chi Feng, Jonathan Walpole, "Provisioning On-line Games: A Traffic Analysis of a Busy Counter-Strike Server", in Proc. of the Internet Measurement Workshop, November 2002. pdf

Wu-chang Feng, Kang Shin, Dilip Kandlur, Debanjan Saha, "The Blue Active Queue Management Algorithms", IEEE/ACM Transactions on Networking, Vol. 10, No. 4, August 2002. pdf
Winner of the IEEE Communications Society 2003 William R. Bennett Prize for Best Paper in IEEE/ACM Transactions on Networking.
Also Winner of Best IBM Research Paper Award in Computer Science, Electrical Engineering, and Math 2002

Francis Chang, Wu-chang Feng, Wu-chi Feng, Jonathan Walpole, "Provisioning On-line Games: A Traffic Analysis of a Busy Counter-Strike Server", ACM SIGCOMM (poster session), August 2002. (Abstract pdf | Poster pdf) also appears in ACM Computer Communications Review, Volume 32, Number 3, July 2002.

2001


Wu-chang Feng, Dilip Kandlur, Debanjan Saha, Kang Shin, "Stochastic Fair Blue: A Queue Management Algorithm for Enforcing Fairness", in Proc. of INFOCOM 2001, April 2001. (Paper pdf | Slides ppt)

Wu-chang Feng, Dilip Kandlur, Debanjan Saha, Kang Shin, "Blue: An Alternative Approach To Active Queue Management", in Proc. of NOSSDAV 2001, June 2001.(Paper ps | Slides ppt)

1999


Wu-chang Feng, Dilip Kandlur, Debanjan Saha, Kang Shin, "Adaptive Packet Marking for Maintaining End-to-End Throughput in a Differentiated-Services Internet," IEEE/ACM Transactions on Networking, v.7, n.5, Oct. 1999. ps

Wu-chang Feng, Dilip Kandlur, Debanjan Saha, Kang Shin, "Understanding and Improving TCP Performance over Networks with Minimum Rate Guarantees" IEEE/ACM Transactions on Networking, Vol. 7, No. 2, pp. 173-187, April 1999.  ps

Wu-chang Feng, Dilip Kandlur, Debanjan Saha, Kang Shin, "Blue: A New Class of Active Queue Management Algorithms" U. Michigan CSE-TR-387-99,  April 1999. ps | pdf

Wu-chang Feng, Dilip Kandlur, Debanjan Saha, Kang Shin, "A Self-Configuring RED Gateway", in Proc. of INFOCOM '99, March 1999. (Paper ps | Slides ppt)

Tarek Abdelzaher, Martin Bjorklund, Scott Dawson, Wu-chang Feng, Farnam Jahanian, Scott Dawson, Pedro Marron, Ashish Mehra, Todd Mitton, Anees Shaikh, Zhiqun Wang, Hengming Zou, "ARMADA Middleware and Communication Services",Journal of Real-Time Systems, Vol. 16, No. 1, January 1999. ps

1998


Wu-chang Feng, Dilip Kandlur, Debanjan Saha, Kang Shin, "Adaptive Packet Marking for Providing Differentiated Services in the Internetin Proc. of 1998 International Conference on Network Protocols (ICNP '98),  October 1998. (Paper ps | Slides ppt)

Wu-chang Feng, Wu-chi Feng,  "The Impact of Active Queue Management on Multimedia Congestion Control,"   in Proc. of IC3N 1998, October 1998. (Paper ps | Slides ppt)

1997


Wu-chang Feng, Dilip Kandlur, Debanjan Saha, Kang Shin, "Techniques for Eliminating Packet Loss in Congested TCP/IP Networks" U. Michigan CSE-TR-349-97,  November 1997. ps

Tarek Abdelzaher, Scott Dawson, Wu-chang Feng, Sunondo Ghosh, Farnam Jahanian, Scott Johnson, Ashish Mehra, Todd Mitton, Jeremy Norton, Anees Shaikh, Kang Shin, V. Vaidyan, Zhiqun Wang, Hengming Zou, "ARMADA Middleware Suite", in Proc. of IEEE RTSS 1997 Workshop on Middleware for Distributed Real-Time Systems and Services, December 1997. ps

Wu-chang Feng and Kang Shin, "Impact of Selection Functions on Routing Algorithm Performance in Multicomputer Networks," in Proc. of the 11th International Conference on Supercomputing, July 1997. ps

Wu-chang Feng, Dilip Kandlur, Debanjan Saha, Kang Shin, "Understanding TCP Dynamics in an Integrated Services Internet" in Proc. of NOSSDAV 1997, May 1997. (Paper ps | Slides htm | Slides ppt)

Jennifer Rexford, Wu-chang Feng, James Dolter, Kang Shin, "PP-MESS-SIM: A Flexible and Extensible Simulator for Evaluating Multicomputer Interconnection Networks",IEEE Transactions on Parallel and Distributed Systems, Vol. 8, No. 1, pp. 25-40, Jan. 1997. (Paper pdf | Paper ps)

1995-1994


Jennifer Rexford, Wu-chang Feng, James Dolter, Kang Shin, "PP-MESS-SIM: A Simulator for Evaluating Multicomputer Interconnection Networks," in Proc. 28th Annual Simulation Symposium, Apr. 1995. (Paper ps | Slides ps)

James Dolter, Stuart Daniel, Ashish Mehra, Jennifer Rexford, Wu-chang Feng, and Kang Shin, "SPIDER: Flexible and Efficient Communication Support for Point-to-point Distributed Systems,"  in Proc. Int. Conference on Distributed Computing Systems (ICDCS), June 1994, pp. 574-580. ps

1989-1992 (Organomettalic Chemistry Papers)


K. Garrett, J. Sheridan, D. Pourreau, W. Feng, G. Geoffroy, D. Staley, and A. Rheingold. "Transient Generation of the Reactive Carbene Complex [Cp(CO)2W=CH(Tol)]+ and Its Reactions with Alkynes to Form Vinylcarbene, Allyl, Naphthol, Diene, and Metallafuran Complexes" Journal of the American Chemical Society, 1989, 111, 8383.

K. Garrett, W. Feng, H. Matsuzaka, G. Geoffroy, and A. Rheingold. "Further Studies of the Synthesis of 1-Naphthols and 4-Hydroxy-5,6-dimethylbenzothiophene by Protonation of Cp(CO)2W=CTol and Cp(CO)2W=C(2-C4H3 S) in the Presence of Alkynes and CO" Journal of Organometallic Chemistry, 1990, 394, 251.

T. Snead, C. Mirkin, K. Lu, S. Nguyen, W. Feng, H. Beckman, G. Geoffroy A. Rheingold, and B. Haggerty., "Formation of Substituted Ferracyclopentadiene Complexes by the Reaction of Alkynes with Protonated Diferra-mu-Azaallylidene Complexes" Organometallics, 1992, 11, 2613.

W. Feng, "Reactions of Cationic Tungsten Carbenes and Binuclear Iron Complexes Possessing Bridging Organic Ligands with Alkynes", Undergraduate Thesis, PSU Dept. of Chemistry, 1992.