Curriculum Vitae

kc claffy

kc@ucsd.edu
La Jolla, California 92093-0505

University of California's San Diego Supercomputer Center (SDSC)
Cooperative Association for Internet Data Analysis (CAIDA)
University of California, San Diego (UCSD)
La Jolla, CA 92093

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Education

• Ph.D. 1994. Computer Science and Engineering, UCSD (Advisor: Dr. George Polyzos)
• M.S. 1991. Computer Science and Engineering, UCSD
• B.S. 1989. Symbolic Systems, Stanford University
  • Dissertation topic: Internet traffic characterization: a methodology to support more accurate workload characterization in the face of increasing diversity in Internet traffic types and qualities

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Professional Positions

• Principal Investigator (PI), CAIDA, UCSD/SDSC (1997-present)
  • Charted to foster development of tools and analysis methodologies for promoting the engineering and maintenance of a robust, scalable global Internet infrastructure.
• Instructor, UCSD Computer Science and Engineering (1996)
• Research Coordinator, National Laboratory and Applied Network Research (NLANR), SDSC (1995-1998)
  • Charted to provide technical, engineering, and traffic analysis support of NSF High Performance Connections sites.
• Associate Staff Scientist, SDSC (1994-present)
• Student Fellow, SDSC (1991-1994)
• Research Assistant, Computer Science and Engineering, UCSD (1989-1994)
• Visiting Researcher, Sony Computer Science Laboratory, Tokyo, Japan (1991)
  • Network protocol research and design; wide area network statistical modeling, measurement, and analysis
• Summer Research Intern, Monetary Affairs, Monetary Studies Section, Federal Reserve Board (1989)
  • Econometric research and programming for the development of a non-linear modeling application for the simulation of macroeconomic indicators
• Summer Research Intern, Artificial Intelligence Principles Research, AT&T Bell Laboratories (1987)
  • Knowledge based user interfaces using plan recognition techniques
• Summer Research Intern, Advanced Sensor Systems, Harry Diamond Laboratories (1986-1987)
  • Natural language processing research; design of extensive Backus Naur grammar in MRS (language written at Stanford) and later in Symbolics Prolog and Lisp
• Summer Research Intern, Counter Measures, Harry Diamond Laboratories (1985)
  • Graphics programming and debugging for aircraft simulation graphics interface programs

Year	Author(s)	Title	Publication
2007	Boguna, M. Krioukov, D. claffy, k.	Navigability of Complex Networks	arXiv physics.soc-ph/.0303
2007	Krioukov, D. claffy, k. Fall, K. Brady, A.	On Compact Routing for the Internet	ACM SIGCOMM Computer Communications Review (CCR)
2007	claffy, k. Meinrath, S. Bradner, S.	The (un)Economic Internet?	IEEE Internet Computing
2007	Liu, Z. Huffaker, B. Fomenkov, M. claffy, k. Brownlee, N.	Two Days in the Life of the DNS Anycast Root Servers	Passive and Active Network Measurement Workshop (PAM)
2007	Krioukov, D. Chung, F. claffy, k. Fomenkov, M. Vespignani, A. Willinger, W.	The Workshop on Internet Topology (WIT) Report	ACM SIGCOMM Computer Communications Review (CCR)
2007	Dimitropoulos, X. Krioukov, D. Fomenkov, M. Huffaker, B. Hyun, Y. claffy, k. Riley, G.	AS Relationships: Inference and Validation	ACM SIGCOMM Computer Communications Review (CCR)
2006	Donnet, B. Huffaker, B. Friedman, T. claffy, k.	Approche Récursive d'Etiquetage des Chemins Alternatifs au Niveau IP	Colloque Francophone d'Ingénierie des Protocoles (CFIP)
2006	Donnet, B. Huffaker, B. Friedman, T. claffy, k.	Evaluation of a Large-Scale Topology Discovery Algorithm	IEEE International Workshop on IP Operations & Management
2006	claffy, k.	A Day in the Life of the Internet: Proposed community-wide experiment	ACM SIGCOMM Computer Communication Review (CCR)
2006	Broido, A. Shang, H. Fomenkov, M. Hyun, Y. claffy, k.	The Windows of Private DNS Updates	ACM SIGCOMM Computer Communications Review (CCR)
2006	claffy, k. Crovella, M. Friedman, T. Shannon, C. Spring, N.	Community-Oriented Network Measurement Infrastructure (CONMI) Workshop Report	ACM SIGCOMM Computer Communications Review (CCR)
2006	Donnet, B. Huffaker, B. Friedman, T. claffy, k.	Implementation and Deployment of a Distributed Network Topology Discovery Algorithm	arXiv cs.NI/62
2006	Dimitropoulos, X. Krioukov, D. Riley, G. claffy, k.	Revealing the Autonomous System Taxonomy: The Machine Learning Approach	Passive and Active Network Measurement Workshop (PAM)
2006	Mahadevan, P. Krioukov, D. Fomenkov, M. Huffaker, B. Dimitropoulos, X. claffy, k. Vahdat, A.	The Internet AS-Level Topology: Three Data Sources and One Definitive Metric	ACM SIGCOMM Computer Communications Review (CCR)
2005	claffy, k. Crovella, M. Friedman, T. Shannon, C. Spring, N.	Community-Oriented Network Measurement Infrastructure (CONMI) Workshop Report	CONMI
2005	Shannon, C. Moore, D. Keys, K. Fomenkov, M. Huffaker, B. claffy, k.	The Internet Measurement Data Catalog	ACM SIGCOMM Computer Communications Review (CCR)
2005	Mahadevan, P. Krioukov, D. Huffaker, B. claffy, k. Vahdat, A.	Impact of Degree Correlations on Topology Generators	SIGCOMM Poster
2005	Dimitropoulos, X. Krioukov, D. Riley, G. claffy, k.	Classifying the Types of Autonomous Systems in the Internet	SIGCOMM Poster
2005	Mahadevan, P. Krioukov, D. Fomenkov, M. Huffaker, B. Dimitropoulos, X. claffy, k. Vahdat, A.	Lessons from Three Views of the Internet Topology: Technical Report	Cooperative Association for Internet Data Analysis (CAIDA)
2005	Kohno, T. Broido, A. claffy, k.	Remote physical device fingerprinting	IEEE Symposium on Security and Privacy
2005	Dimitropoulos, X. Krioukov, D. Huffaker, B. claffy, k. Riley, G.	Inferring AS Relationships: Dead End or Lively Beginning?	Workshop on Efficient and Experimental Algorithms (WEA)
2005	Shriram, A. Murray, M. Hyun, Y. Brownlee, N. Broido, A. Fomenkov, M. claffy, k.	Comparison of Public End-to-End Bandwidth Estimation Tools on High-Speed Links	Passive and Active Network Measurement Workshop (PAM)
2005	Shakkottai, S. Brownlee, N. claffy, k.	A Study of Burstiness in TCP Flows	Passive and Active Network Measurement Workshop (PAM)
2005	Broido, A. Hyun, Y. claffy, k.	Spectroscopy of traceroute delays	Passive and Active Network Measurement Workshop (PAM)
2004	Karagiannis, T. Broido, A. Brownlee, N. claffy, k. Faloutsos, M.	Is P2P dying or just hiding?	Global Internet and Next Generation Networks
2004	Karagiannis, T. Broido, A. Faloutsos, M. claffy, k.	Transport Layer Identification of P2P Traffic	Internet Measurement Conference
2004	Wessels, D. Fomenkov, M. Brownlee, N. claffy, k.	Measurements and Laboratory Simulations of the Upper DNS Hierarchy	Passive and Active Network Measurement Workshop (PAM)
2004	Dovrolis, C. Prasad, R. Murray, M. claffy, k.	Bandwidth estimation: metrics, measurement techniques, and tools	IEEE Network
2004	Broido, A. Hyun, Y. Gao, R. claffy, k.	Their share: diversity and disparity in IP traffic	Passive and Active Network Measurement Workshop (PAM)
2004	Verkaik, P. Broido, A. claffy, k. Gao, R. Hyun, Y. van der Pol, R.	Beyond CIDR Aggregation	Cooperative Association for Internet Data Analysis (CAIDA)
2003	Broido, A. King, R. Nemeth, E. claffy, k.	Radon Spectroscopy of Packet Delay	International Teletraffic Congress 18
2003	Broido, A. Nemeth, E. claffy, k.	Spectroscopy of DNS Update Traffic	SIGMETRICS Poster
2003	Broido, A. Nemeth, E. claffy, k.	Spectroscopy of DNS Update Traffic	Workshop on Internet Applications (WIAPP)
2003	Wessels, D. Fomenkov, M. claffy, k.	Wow, That's a lot of packets	Passive and Active Network Measurement Workshop (PAM)
2003	Lee, T. Huffaker, B. Fomenkov, M. claffy, k.	On the problem of optimization of DNS root servers' placement	Passive and Active Network Measurement Workshop (PAM)
2003	Hyun, Y. Broido, A. claffy, k.	On Third-party Addresses in Traceroute Paths	Passive and Active Network Measurement Workshop (PAM)
2003	Hyun, Y. Broido, A. claffy, k.	Traceroute and BGP AS Path Incongruities	Cooperative Association for Internet Data Analysis (CAIDA)
2003	Broido, A. King, R. Nemeth, E. claffy, k.	Radon spectroscopy of inter-packet delay	IEEE High-speed networking workshop
2003	Fomenkov, M. Keys, K. Moore, D. claffy, k.	Longitudinal study of Internet traffic from 1998-2003	Winter International Symposium on Information and Communication Technologies (WISICT)
2003	Beverly, R. claffy, k.	Wide-Area IP Multicast Traffic Characterization	IEEE Network
2002	Shannon, C. Moore, D. claffy, k.	Beyond Folklore: Observations on Fragmented Traffic	IEEE/ACM Transactions on Networking
2002	Huffaker, B. Fomenkov, M. Plummer, D. Moore, D. claffy, k.	Distance Metrics in the Internet	IEEE International Telecommunications Symposium (ITS)
2002	Brownlee, N. claffy, k.	Understanding Internet Traffic Streams: Dragonflies and Tortoises	IEEE Communications
2002	Huffaker, B. Plummer, D. Moore, D. claffy, k.	Topology discovery by active probing	Symposium on Applications and the Internet (SAINT)
2002	Broido, A. claffy, k. Nemeth, E.	Internet Expansion, Refinement, and Churn	European Transactions on Telecommunications
2001	Moore, D. Keys, K. Koga, R. Lagache, E. claffy, k.	CoralReef software suite as a tool for system and network administrators	Usenix LISA
2001	Fomenkov, M. claffy, k. Huffaker, B. Moore, D.	Macroscopic Internet Topology and Performance Measurements From the DNS Root Name Servers	Usenix LISA
2001	Brownlee, N. claffy, k. Nemeth, E.	DNS Root/gTLD Performance Measurements	Usenix LISA
2001	Shannon, C. Moore, D. claffy, k.	Characteristics of Fragmented Traffic on Internet Links	Internet Measurement Workshop (IMW)
2001	Brownlee, N. claffy, k. Nemeth, E.	DNS Measurements at a Root Server	IEEE Global Telecommunications Conference (GLOBECOM)
2001	Broido, A. claffy, k.	Internet topology: connectivity of IP graphs	SPIE International Symposium on Convergence of IT and Communication
2001	Broido, A. claffy, k.	Complexity of global routing policies	Cooperative Association for Internet Data Analysis (CAIDA)
2001	Broido, A. claffy, k.	Analysis of RouteViews BGP data: policy atoms	Network Resource Data Management Workshop
2001	Shannon, C. Moore, D. claffy, k.	Characteristics of fragmented IP traffic on Internet links	Passive and Active Network Measurement Workshop (PAM)
2001	Murray, M. claffy, k.	Measuring the Immeasurable: Global Internet Measurement Infrastructure	Passive and Active Network Measurement Workshop (PAM)
2001	Keys, K. Moore, D. Koga, R. Lagache, E. Tesch, M. claffy, k.	The architecture of CoralReef: an Internet traffic monitoring software suite	Passive and Active Network Measurement Workshop (PAM)
2001	Huffaker, B. Fomenkov, M. Moore, D. claffy, k.	Macroscopic analyses of the infrastructure: measurement and visualization of Internet connectivity and performance	Passive and Active Network Measurement Workshop (PAM)
2001	Brownlee, N. claffy, k. Murray, M. Nemeth, E.	Methodology for passive analysis of a university Internet link	Passive and Active Network Measurement Workshop (PAM)
2001	Mathis, M. Huntoon, G. claffy, k.	Traffic dynamics testbed	Large Scale Networking (LSN) Workshop
2001	claffy, k.	CAIDA: Visualizing the Internet	Internet Computing Online
2000	Rajvaidya, P. Almeroth, K. claffy, k.	A scalable architecture for monitoring and visualizing multicast statistics	Distributed Systems: Operations and Management
2000	McCreary, S. claffy, k.	Trends in wide area IP traffic patterns - A view from Ames Internet Exchange	ITC Specialist Seminar
2000	Nemeth, E. Ott, T. Thompson, K. claffy, k.	The Internet Engineering Curriculum Repository	International Networking Conference (INET)
2000	Moore, D. Periakaruppan, R. Donohoe, J. claffy, k.	Where in the world is netgeo.caida.org?	International Networking Conference (INET)
2000	Huffaker, B. Fomenkov, M. Moore, D. Nemeth, E. claffy, k.	Measurements of the Internet topology in the Asia-Pacific Region	International Networking Conference (INET)
2000	claffy, k.	Measuring the Internet	IEEE Internet Computing
1999	claffy, k. McCreary, S.	Internet measurement and data analysis: passive and active measurement	American Statistical Association
1999	Huffaker, B. Nemeth, E. claffy, k.	Otter: A general-purpose network visualization tool	International Networking Conference (INET)
1999	Huffaker, B. claffy, k. Nemeth, E.	Tools to visualize the Internet multicast backbone	International Networking Conference (INET)
1999	claffy, k.	Internet measurement and data analysis: topology, workload, performance and routing statistics	National Academy of Engineering (NAE) Workshop
1999	claffy, k. Monk, T. McRobb, D.	Internet Tomography	Nature
1998	claffy, k. Miller, G. Thompson, K.	The nature of the beast: Recent traffic measurements from an Internet backbone	International Networking Conference (INET)
1998	Huffaker, B. Jung, J. Nemeth, E. Wessels, D. claffy, k.	Visualization of the growth and topology of the NLANR caching hierarchy	International WWW Caching Workshop
1998	Wessels, D. claffy, k.	ICP and the Squid web cache	IEEE Journal on Selected Areas in Communications
1997	claffy, k. Monk, T.	What's next for Internet data analysis? Status and challenges facing the community	Proceedings of the IEEE
1997	Wessels, D. claffy, k.	IETF RFC 2187: Application of Internet Cache Protocol (ICP), version 2	IETF RFC
1997	Wessels, D. claffy, k.	IETF RFC 2186: Internet Cache Protocol (ICP), version 2	IETF RFC
1997	Monk, T. claffy, k.	Internet data acquisition and analysis: Status and next steps	National Laboratory for Applied Network Research (NLANR)
1996	Hoffman, E. claffy, k.	Geographic addressing reconsidered	Coordination and Administration of the Internet Workshop
1996	Wessels, D. claffy, k.	Evolution of the NLANR cache hierarchy: Global configuration challenges	National Laboratory for Applied Network Research (NLANR)
1996	Munzner, T. Hoffman, E. claffy, k. Fenner, B.	Visualizing the global topology of the MBone	IEEE Symposium on Information Visualization
1996	Hoffman, E. claffy, k.	Address administration in IPv6	IEEE Symposium on Information Visualization
1996	Wessels, D. claffy, k.	Can WWW caches help to save the Internet?	Coordination and Administration of the Internet Workshop
1996	Monk, T. claffy, k.	Cooperation in Internet data acquisition and analysis	Coordination and Administration of the Internet Workshop
1996	Mitchell, D. Bradner, S. claffy, k.	In whose domain: name service in adolescence	Coordination and Administration of the Internet Workshop
1996	claffy, k.	"But some data is worse than others": Measurement of the global Internet	National Laboratory for Applied Network Research (NLANR)
1996	Monk, T. claffy, k.	A survey of Internet statistics / metrics activities	National Laboratory for Applied Network Research (NLANR)
1995	claffy, k. Braun, H.-W.	Post-NSFNET statistics collection	International Networking Conference (INET)
1995	claffy, k. Gross, A Braun, H.-W.	Measured interference of security mechanisms with network performance	International Networking Conference (INET)
1995	claffy, k. Braun, H.-W. Polyzos, G.	A parameterizable methodology for Internet traffic flow profiling	IEEE Journal on Selected Areas in Communications
1994	claffy, k.	Internet traffic characterization.	UC San Diego
1994	Bohn, R. Braun, H.-W. claffy, k. Wolff, S.	Mitigating the coming Internet crunch: multiple service levels via Precedence	National Laboratory for Applied Network Research (NLANR)
1994	Braun, H.-W. claffy, k.	Web traffic characterization: an assessment of the impact of caching documents from the NCSA's web server	Second International World Wide Web (WWW) Conference
1994	Braun, H.-W. Chinoy, B. claffy, k.	Applied Network Research: 1994 annual status report	Applied Network Research, San Diego Supercomputer Center
1994	claffy, k. Braun, H.-W. Polyzos, G.	Tracking long-term growth of the NSFNET	Communications of the ACM
1994	claffy, k. Braun, H.-W. Polyzos, G.	Internet traffic flow profiling	Applied Network Research, San Diego Supercomputer Center
1993	Braun, H.-W. Chinoy, B. claffy, k. Polyzos, G.	1993 annual report of the research progress of the Applied Network Research (ANR) group at SDSC	Applied Network Research, San Diego Supercomputer Center
1993	claffy, k. Braun, H.-W. Polyzos, G.	Measurement considerations for assessing unidirectional latencies	Journal of Internetworking
1993	Braun, H.-W. claffy, k. Polyzos, G.	A framework for flow-based accounting on the Internet	IEEE Singapore International Conference on Networks (SICON'93)
1993	claffy, k. Braun, H.-W. Polyzos, G.	Long-term traffic aspects of the NSFNET	International Networking Conference (INET)
1993	claffy, k. Braun, H.-W. Polyzos, G.	Application of sampling methodologies to wide-area network traffic characterization	SIGCOMM
1993	Braun, H.-W. claffy, k.	Network analysis issues for a public Internet	Public Access to the Internet, A Harvard JFK School Workshop
1993	Braun, H.-W. claffy, k.	Network analysis in support of Internet policy requirements	International Networking Conference (INET)
1993	claffy, k. Braun, H.-W. Polyzos, G.	Traffic characteristics of the T1 NSFNET backbone	IEEE Conference on Computer Communications (INFOCOM)
1992	Braun, H.-W. Chinoy, B. claffy, k. Polyzos, G.	1992 annual report of the research progress of the Applied Network Research (ANR) group at SDSC	Applied Network Research, San Diego Supercomputer Center
1992	Asaba, T. claffy, k. Nakamura, O. Murai, J.	An analysis of international academic research network traffic between Japan and other nations	International Networking Conference (INET)