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Senior Staff Bio - k claffy
kc claffy is principal investigator for the distributed Cooperative Association for Internet Data Analysis (CAIDA), and resident research scientist based at the University of California's San Diego Supercomputer Center. kc's research interests include Internet workload/performance data collection, analysis and visualization, particularly with respect to commercial ISP collaboration/cooperation and sharing of analysis resources. kc received her PhD in Computer Science from UCSD in 1994.

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

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


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

Publications

pretty table listing

k. claffy, ``Border Gateway Protocol (BGP) and Traceroute Data Workshop Report'', Tech. rep., Cooperative Association for Internet Data Analysis (CAIDA), Sep 2011.

M. Fomenkov and k. claffy, ``Internet measurement data management challenges'', in Workshop on Research Data Lifecycle Management. July 2011, Workshop on Research Data Lifecycle Management.

k. claffy, ``The 3rd Workshop on Active Internet Measurements (AIMS-3) Report'', ACM SIGCOMM Computer Communication Review (CCR), vol. 43, no. 3, pp. 37--42, Jul 2011.

k. claffy, ``Tracking IPv6 Evolution: Data We Have and Data We Need '', ACM SIGCOMM Computer Communication Review (CCR), vol. 43, no. 3, pp. 43--48, Jul 2011.

K. Keys, Y. Hyun, M. Luckie, and k. claffy, ``Internet-Scale IPv4 Alias Resolution with MIDAR: System Architecture - Technical Report'', Tech. rep., Cooperative Association for Internet Data Analysis (CAIDA), May 2011.

B. Huffaker, M. Fomenkov, and k. claffy, ``Geocompare: a comparison of public and commercial geolocation databases - Technical Report'', Tech. rep., Cooperative Association for Internet Data Analysis (CAIDA), May 2011.

M. Luckie, A. Dhamdhere, k. claffy, and Murrell D., ``Measured Impact of Crooked Traceroute'', ACM SIGCOMM Computer Communication Review (CCR), vol. 41, no. 1, pp. 14--21, Jan 2011.

k. claffy, E. Aben, J. Auge, R. Beverly, F. Bustamante, B. Donnet, T. Friedman, M. Fomenkov, P. Haga, M. Luckie, and Y. Shavitt, ``The 2nd Workshop on Active Internet Measurements (AIMS-2) Report'', ACM SIGCOMM Computer Communication Review (CCR), vol. 40, no. 5, pp. 53--58, Oct 2010.

E. Kenneally and k. claffy, ``Dialing privacy and utility: a proposed data-sharing framework to advance Internet research '', IEEE Security & Privacy, vol. 8, no. 4, pp. 31--39, Jul 2010.

B. Huffaker, A. Dhamdhere, M. Fomenkov, and k. claffy, ``Toward Topology Dualism: Improving the Accuracy of AS Annotations for Routers'', in Passive and Active Network Measurement Workshop (PAM), Zurich, Switzerland, Apr 2010, vol. 6032 of Lecture Notes in Computer Science, pp. 101--110, PAM 2010.

k. claffy, ``Workshop on Internet Economics (WIE2009) Report'', ACM SIGCOMM Computer Communication Review (CCR), vol. 40, no. 2, Apr 2010.

S. Shakkottai, M. Fomenkov, R. Koga, D. Krioukov, and k. claffy, ``Evolution of the Internet AS-Level Ecosystem'', European Physical Journal B, vol. 74, no. 2, pp. 271--278, Mar 2010.

W. John, M. Dusi, and k. claffy, ``Estimating Routing Symmetry on Single Links by Passive Flow Measurements'', Tech. rep., ACM 1st International Workshop on TRaffic Analysis and Classification (TRAC), Mar 2010.

S. Castro, M. Zhang, W. John, D. Wessels, and k. claffy, ``Understanding and preparing for DNS evolution '', in Traffic Monitoring and Analysis Workshop (TMA), Zurich, Switzerland, Mar 2010, vol. 6003 of Lecture Notes in Computer Science, pp. 1--16, TMA 2010.

R. Beverly, A. Berger, Y. Hyun, and k. claffy, ``Understanding the Efficacy of Deployed Internet Source Address Validation Filtering'', in Internet Measurement Conference (IMC) 2009, Chicago, IL, Nov 2009, Internet Measurement Conference (IMC) 2009.

E. Kenneally and k. claffy, ``An Internet Data Sharing Framework For Balancing Privacy and Utility'', in Engaging Data: First International Forum on the Application and Management of Personal Electronic Information. Oct 2009, MIT.

F. Gringoli, L. Salgarelli, M. Dusi, N. Cascarano, F. Risso, and k. claffy, ``GT: picking up the truth from the ground for Internet traffic'', ACM SIGCOMM Computer Communication Review (CCR), vol. 39, no. 5, Oct 2009.

k. claffy, M. Fomenkov, E. Katz-Bassett, R. Beverly, B. Cox, and M. Luckie, ``The Workshop on Active Internet Measurements (AIMS) Report'', ACM SIGCOMM Computer Communication Review (CCR), vol. 39, no. 5, pp. 32--36, Oct 2009.

k. claffy, Y. Hyun, K. Keys, M. Fomenkov, and D. Krioukov, ``Internet Mapping: from Art to Science'', in IEEE DHS Cybersecurity Applications and Technologies Conference for Homeland Security (CATCH), Watham, MA, Mar 2009, pp. 205--211, IEEE DHS Cybersecurity Applications and Technologies Conference for Homeland Security (CATCH).

S. Shakkottai, M. Fomenkov, R. Koga, D. Krioukov, and k. claffy, ``Evolution of the Internet AS-Level Ecosystem'', in International Conference on Complex Sciences (Complex), Shanghai, China, Feb 2009, International Conference on Complex Sciences (Complex).

M. Boguna, D. Krioukov, and k. claffy, ``Navigability of Complex Networks'', Nature Physics, vol. 5, no. 1, pp. 74--80, Jan 2009.

H. Kim, k. claffy, M. Fomenkov, D. Barman, M. Faloutsos, and K. Lee, ``Internet Traffic Classification Demystified: Myths, Caveats, and the Best Practices'', in ACM SIGCOMM CoNEXT, New York, NY, Dec 2008, ACM SIGCOMM CoNEXT.

B. Huffaker, M. Fomenkov, and k. claffy, ``Influence Maps - a novel 2-D visualization of massive geographically distributed data sets'', Internet Protocol Forum, Oct 2008.

S. Castro, D. Wessels, M. Fomenkov, and k. claffy, ``A Day at the Root of the Internet'', ACM SIGCOMM Computer Communication Review (CCR), vol. 38, no. 5, pp. 41--46, Oct 2008.

k. claffy, ``Ten Things Lawyers Should Know About Internet Research'' blog.caida.org, August 2008.

S. Meinrath and k. claffy, ``The COMMONS Initiative: Cooperative Measurement and Modeling of Open Networked Systems'', CommLaw Conspectus, vol. 16, no. 2, pp. 407--42, Jul 2008.

D. Krioukov, k. claffy, K. Fall, and A. Brady, ``On Compact Routing for the Internet'', ACM SIGCOMM Computer Communication Review (CCR), vol. 37, no. 3, pp. 41--52, Jul 2007.

k. claffy, S. Meinrath, and S. Bradner, ``The (un)Economic Internet?'', IEEE Internet Computing, vol. 11, no. 3, pp. 53--58, May 2007.

Z. Liu, B. Huffaker, M. Fomenkov, k. claffy, and N. Brownlee, ``Two Days in the Life of the DNS Anycast Root Servers'', Passive and Active Network Measurement Workshop (PAM), vol. 4427, pp. 125--134, Apr 2007.

D. Krioukov, F. Chung, k. claffy, M. Fomenkov, A. Vespignani, and W. Willinger, ``The Workshop on Internet Topology (WIT) Report'', Tech. rep., ACM SIGCOMM Computer Communication Review (CCR), Jan 2007.

X. Dimitropoulos, D. Krioukov, M. Fomenkov, B. Huffaker, Y. Hyun, k. claffy, and G. Riley, ``AS Relationships: Inference and Validation'', ACM SIGCOMM Computer Communication Review (CCR), vol. 37, no. 1, pp. 29--40, Jan 2007.

B. Donnet, B. Huffaker, T. Friedman, and k. claffy, ``Approche Récursive d'Etiquetage des Chemins Alternatifs au Niveau IP'', in Colloque Francophone d'Ingénierie des Protocoles (CFIP), Tozeur, Tunisia, Nov 2006, CFIP 2006.

B. Donnet, B. Huffaker, T. Friedman, and k. claffy, ``Evaluation of a Large-Scale Topology Discovery Algorithm'', in 6th IEEE International Workshop on IP Operations & Management, Dublin, Ireland, Oct 2006, vol. 4268, pp. 193--204, IEEE 2006.

k. claffy, ``A Day in the Life of the Internet: Proposed community-wide experiment'', ACM SIGCOMM Computer Communication Review (CCR), vol. 36, no. 5, pp. 39--40, Oct 2006.

A. Broido, H. Shang, M. Fomenkov, Y. Hyun, and k. claffy, ``The Windows of Private DNS Updates'', ACM SIGCOMM Computer Communication Review (CCR), vol. 36, no. 3, pp. 93--98, Jul 2006.

k. claffy, M. Crovella, T. Friedman, C. Shannon, and N. Spring, ``Community-Oriented Network Measurement Infrastructure (CONMI) Workshop Report'', ACM SIGCOMM Computer Communication Review (CCR), vol. 36, no. 2, pp. 41--48, Apr 2006.

B. Donnet, B. Huffaker, T. Friedman, and k. claffy, ``Implementation and Deployment of a Distributed Network Topology Discovery Algorithm'', Tech. rep., arXiv cs.NI/060362, Mar 2006.

X. Dimitropoulos, D. Krioukov, G. Riley, and k. claffy, ``Revealing the Autonomous System Taxonomy: The Machine Learning Approach'', in Passive and Active Network Measurement Workshop (PAM), Adelaide, Australia, Mar 2006, PAM 2006.

P. Mahadevan, D. Krioukov, M. Fomenkov, B. Huffaker, X. Dimitropoulos, k. claffy, and A. Vahdat, ``The Internet AS-Level Topology: Three Data Sources and One Definitive Metric'', ACM SIGCOMM Computer Communication Review (CCR), vol. 36 No 1, pp. 17--26, Jan 2006.

C. Shannon, D. Moore, K. Keys, M. Fomenkov, B. Huffaker, and k. claffy, ``The Internet Measurement Data Catalog'', ACM SIGCOMM Computer Communication Review (CCR), vol. 35, no. 5, pp. 97--100, Oct 2005.

P. Mahadevan, D. Krioukov, B. Huffaker, k. claffy, and A. Vahdat, ``Impact of Degree Correlations on Topology Generators'', in SIGCOMM 2005 Poster, Philadelphia, Pennsylvania, Aug 2005, ACM.

X. Dimitropoulos, D. Krioukov, G. Riley, and k. claffy, ``Classifying the Types of Autonomous Systems in the Internet'', in SIGCOMM 2005 Poster, Philadelphia, Pennsylvania, Aug 2005, ACM.

P. Mahadevan, D. Krioukov, M. Fomenkov, B. Huffaker, X. Dimitropoulos, k. claffy, and A. Vahdat, ``Lessons from Three Views of the Internet Topology: Technical Report'', Tech. rep., Cooperative Association for Internet Data Analysis (CAIDA), Jun 2005.

T. Kohno, A. Broido, and k. claffy, ``Remote physical device fingerprinting'', IEEE Transactions on Dependable and Secure Computing, vol. 2, no. 2, pp. 93--108, May 2005.

X. Dimitropoulos, D. Krioukov, B. Huffaker, k. claffy, and G. Riley, ``Inferring AS Relationships: Dead End or Lively Beginning?'', in 4th Workshop on Efficient and Experimental Algorithms (WEA), Santorini, Greece, May 2005, pp. 113--125, Springer Lecture Notes in Computer Science.

A. Shriram, M. Murray, Y. Hyun, N. Brownlee, A. Broido, M. Fomenkov, and k. claffy, ``Comparison of Public End-to-End Bandwidth Estimation Tools on High-Speed Links'', in Passive and Active Network Measurement Workshop (PAM), Boston, MA, Mar 2005, vol. 3431, pp. 306--320, PAM 2005.

S. Shakkottai, N. Brownlee, and k. claffy, ``A Study of Burstiness in TCP Flows'', in Passive and Active Network Measurement Workshop (PAM), Boston, MA, Mar 2005, pp. 13--26, PAM 2005.

A. Broido, Y. Hyun, and k. claffy, ``Spectroscopy of traceroute delays'', in Passive and Active Network Measurement Workshop (PAM), Boston, MA, Mar 2005, pp. 178--291, PAM 2005.

T. Karagiannis, A. Broido, N. Brownlee, k. claffy, and M. Faloutsos, ``Is P2P dying or just hiding?'', in Global Internet and Next Generation Networks, Dallas, Texas, Dec 2004, Globecom 2004.

T. Karagiannis, A. Broido, M. Faloutsos, and k. claffy, ``Transport Layer Identification of P2P Traffic'', in Internet Measurement Conference (IMC) 2004, Taormina, Sicily, Italy, Oct 2004, pp. 121--134, Internet Measurement Conference (IMC) 2004.

D. Wessels, M. Fomenkov, N. Brownlee, and k. claffy, ``Measurements and Laboratory Simulations of the Upper DNS Hierarchy'', in Passive and Active Network Measurement Workshop (PAM), Antibes Juan-les-Pins, France, Apr 2004, pp. 147--157, PAM 2004.

A. Broido, Y. Hyun, R. Gao, and k. claffy, ``Their share: diversity and disparity in IP traffic'', in Passive and Active Network Measurement Workshop (PAM), Antibes Juan-les-Pins, France, April 2004, pp. 113--125, PAM 2004.

P. Verkaik, A. Broido, k. claffy, R. Gao, Y. Hyun, and R. van~der Pol, ``Beyond CIDR Aggregation'', Tech. rep., Cooperative Association for Internet Data Analysis (CAIDA), Feb 2004.

A. Broido, R. King, E. Nemeth, and k. claffy, ``Radon Spectroscopy of Packet Delay'', in International Teletraffic Congress 18, Berlin, Germany, Aug 2003, ITC18.

A. Broido, E. Nemeth, and k. claffy, ``Spectroscopy of DNS Update Traffic'', in SIGMETRICS 2003 Poster. June 2003, pp. 320--321, ACM.

A. Broido, E. Nemeth, and k. claffy, ``Spectroscopy of DNS Update Traffic'', in Workshop on Internet Applications (WIAPP) 2003, San Jose, CA, June 2003, Workshop on Internet Applications (WIAPP).

T. Lee, B. Huffaker, M. Fomenkov, and k. claffy, ``On the problem of optimization of DNS root servers' placement'', in Passive and Active Network Measurement Workshop (PAM), San Diego, CA, Apr 2003, PAM.

Y. Hyun, A. Broido, and k. claffy, ``On Third-party Addresses in Traceroute Paths'', in Passive and Active Network Measurement Workshop (PAM), San Diego, CA, Apr 2003, PAM.

C. Dovrolis, R. Prasad, M. Murray, and k. claffy, ``Bandwidth estimation: metrics, measurement techniques, and tools'', IEEE Network, vol. 17 No. 6, Nov-Dec 2003, pp. 27--35, April 2003.

Y. Hyun, A. Broido, and k. claffy, ``Traceroute and BGP AS Path Incongruities'', Tech. rep., Cooperative Association for Internet Data Analysis (CAIDA), Mar 2003.

A. Broido, R. King, E. Nemeth, and k. claffy, ``Radon spectroscopy of inter-packet delay'', in IEEE High-speed networking workshop, San Francisco, CA, March 2003, IEEE High-speed networking workshop.

M. Fomenkov, K. Keys, D. Moore, and k. claffy, ``Longitudinal study of Internet traffic from 1998-2003'', in Winter International Symposium on Information and Communication Technologies (WISICT) 2004. Jan 2003, pp. 1--6, Winter International Symposium on Information and Communication Technologies (WISICT).

R. Beverly and k. claffy, ``Wide-Area IP Multicast Traffic Characterization'', IEEE Network, vol. 17 No. 1, Jan-Feb 2003, pp. 8--15, Jan 2003.

C. Shannon, D. Moore, and k. claffy, ``Beyond Folklore: Observations on Fragmented Traffic'', IEEE/ACM Transactions on Networking, vol. 10, No. 6, Dec 2002, pp. 709--720, Dec 2002.

B. Huffaker, M. Fomenkov, D. Plummer, D. Moore, and k. claffy, ``Distance Metrics in the Internet'', in IEEE International Telecommunications Symposium (ITS), Brazil, Sep 2002, pp. 200--202, IEEE.

N. Brownlee and k. claffy, ``Understanding Internet Traffic Streams: Dragonflies and Tortoises'', IEEE Communications, vol. 40 No. 10, Oct 2002, pp. 110--117, Jul 2002.

B. Huffaker, D. Plummer, D. Moore, and k. claffy, ``Topology discovery by active probing'', in Symposium on Applications and the Internet (SAINT), Nara, Japan, Jan 2002, pp. 90--96, SAINT.

A. Broido, k. claffy, and E. Nemeth, ``Internet Expansion, Refinement, and Churn'', European Transactions on Telecommunications, vol. 13, no. 1, pp. 33--51, Jan 2002.

D. Moore, K. Keys, R. Koga, E. Lagache, and k. claffy, ``CoralReef software suite as a tool for system and network administrators'', in Usenix LISA, San Diego, CA, Dec 2001, pp. 4--7, Usenix.

M. Fomenkov, k. claffy, B. Huffaker, and D. Moore, ``Macroscopic Internet Topology and Performance Measurements From the DNS Root Name Servers'', in Usenix LISA, San Diego, CA, Dec 2001, Usenix.

N. Brownlee, k. claffy, and E. Nemeth, ``DNS Root/gTLD Performance Measurements'', in Usenix LISA, San Diego, CA, Dec 2001, Usenix.

C. Shannon, D. Moore, and k. claffy, ``Characteristics of Fragmented Traffic on Internet Links'', in Internet Measurement Workshop (IMW) 2001. Nov 2001, pp. 83--97, ACM SIGCOMM.

N. Brownlee, k. claffy, and E. Nemeth, ``DNS Measurements at a Root Server'', in IEEE Global Telecommunications Conference (GLOBECOM), San Antonio, TX, Nov 2001, IEEE Global Telecommunications Conference (GLOBECOM).

A. Broido and k. claffy, ``Internet topology: connectivity of IP graphs'', in SPIE International Symposium on Convergence of IT and Communication, Denver, CO, Aug 2001, pp. 172--187.

A. Broido and k. claffy, ``Complexity of global routing policies'', Tech. rep., Cooperative Association for Internet Data Analysis (CAIDA), Jul 2001.

A. Broido and k. claffy, ``Analysis of RouteViews BGP data: policy atoms'', in Network Resource Data Management Workshop, Santa Barbara, CA, May 2001.

C. Shannon, D. Moore, and k. claffy, ``Characteristics of fragmented IP traffic on Internet links'', in Passive and Active Network Measurement Workshop (PAM), Amsterdam, Netherlands, Apr 2001, pp. 83--97, RIPE NCC.

M. Murray and k. claffy, ``Measuring the Immeasurable: Global Internet Measurement Infrastructure'', in Passive and Active Network Measurement Workshop (PAM), Amsterdam, Netherlands, Apr 2001, pp. 159--167, RIPE NCC.

K. Keys, D. Moore, R. Koga, E. Lagache, M. Tesch, and k. claffy, ``The architecture of CoralReef: an Internet traffic monitoring software suite'', in Passive and Active Network Measurement Workshop (PAM), Amsterdam, Netherlands, Apr 2001, RIPE NCC.

B. Huffaker, M. Fomenkov, D. Moore, and k. claffy, ``Macroscopic analyses of the infrastructure: measurement and visualization of Internet connectivity and performance'', in Passive and Active Network Measurement Workshop (PAM), Amsterdam, Netherlands, Apr 2001, RIPE NCC.

N. Brownlee, k. claffy, M. Murray, and E. Nemeth, ``Methodology for passive analysis of a university Internet link'', in Passive and Active Network Measurement Workshop (PAM), Amsterdam, Netherlands, Apr 2001, RIPE NCC.

M. Mathis, G. Huntoon, and k. claffy, ``Traffic dynamics testbed'', in Large Scale Networking (LSN) Workshop, Virginia, Mar 2001.

k. claffy, ``CAIDA: Visualizing the Internet'', Internet Computing Online, p. 88, Jan 2001.

P. Rajvaidya, K. Almeroth, and k. claffy, ``A scalable architecture for monitoring and visualizing multicast statistics'', in Distributed Systems: Operations and Management, Dec 2000.

S. McCreary and k. claffy, ``Trends in wide area IP traffic patterns - A view from Ames Internet Exchange'', in ITC Specialist Seminar, Monterey, CA, 18-20 Sep 2000.

E. Nemeth, T. Ott, K. Thompson, and k. claffy, ``The Internet Engineering Curriculum Repository'', in International Networking Conference (INET) '00, Yokohama, Japan, 18-21 Jul 2000, The Internet Society.

D. Moore, R. Periakaruppan, J. Donohoe, and k. claffy, ``Where in the world is netgeo.caida.org?'', in International Networking Conference (INET) '00, Yokohama, Japan, 18-21 Jul 2000, The Internet Society.

B. Huffaker, M. Fomenkov, D. Moore, E. Nemeth, and k. claffy, ``Measurements of the Internet topology in the Asia-Pacific Region'', in International Networking Conference (INET) '00, Yokohama, Japan, 18-21 July 2000, The Internet Society.

k. claffy, ``Measuring the Internet'', IEEE Internet Computing, vol. 4, no. 1, pp. 73--75, Jan 2000.

k. claffy and S. McCreary, ``Internet measurement and data analysis: passive and active measurement'', in American Statistical Association, New Jersey, 7-10 Aug 1999.

B. Huffaker, E. Nemeth, and k. claffy, ``Otter: A general-purpose network visualization tool'', in International Networking Conference (INET) '99, San Jose, CA, 22-25 Jun 1999, The Internet Society.

B. Huffaker, k. claffy, and E. Nemeth, ``Tools to visualize the Internet multicast backbone'', in International Networking Conference (INET) '99, San Jose, CA, 22-25 Jun 1999, The Internet Society.

k. claffy, ``Internet measurement and data analysis: topology, workload, performance and routing statistics'', in National Academy of Engineering (NAE) '99 Workshop, Los Angeles, CA, Mar 1999, National Academy of Engineers.

k. claffy, T. Monk, and D. McRobb, ``Internet Tomography'', Nature, Jan 1999.

k. claffy, G. Miller, and K. Thompson, ``The nature of the beast: Recent traffic measurements from an Internet backbone'', in International Networking Conference (INET) '98, Geneva, Switzerland, 21-24 Jul 1998, The Internet Society.

B. Huffaker, J. Jung, D. Wessels, and k. claffy, ``Visualization of the growth and topology of the NLANR caching hierarchy'', in 3rd International WWW Caching Workshop, University of Manchester, Manchester, England, UK, 15-17 Jun 1998, pp. 2131--9.

D. Wessels and k. claffy, ``ICP and the Squid web cache'', IEEE Journal on Selected Areas in Communications, vol. 16, no. 3, pp. 345--57, Mar 1998.

k. claffy and T. Monk, ``What's next for Internet data analysis? Status and challenges facing the community'', Proceedings of the IEEE, vol. 85, no. 10, pp. 1563--71, Oct 1997.

D. Wessels and k. claffy, ``IETF RFC 2187: Application of Internet Cache Protocol (ICP), version 2'' IETF RFC, Sept 1997.

D. Wessels and k. claffy, ``IETF RFC 2186: Internet Cache Protocol (ICP), version 2'' IETF RFC, Sept 1997.

T. Monk and k. claffy, ``Internet data acquisition and analysis: Status and next steps'', Tech. rep., National Laboratory for Applied Network Research (NLANR), 21 Mar 1997.

E. Hoffman and k. claffy, ``Geographic addressing reconsidered'', in Coordination and Administration of the Internet Workshop. Kennedy School of Government, Harvard University, Cambridge, MA, 1996.

D. Wessels and k. claffy, ``Evolution of the NLANR cache hierarchy: Global configuration challenges'', Tech. rep., National Laboratory for Applied Network Research (NLANR), Nov 1996.

T. Munzner, E. Hoffman, k. claffy, and B. Fenner, ``Visualizing the global topology of the MBone'', in IEEE Symposium on Information Visualization, San Francisco, CA, Oct 1996, pp. 85--92, 129.

E. Hoffman and k. claffy, ``Address administration in IPv6'', in 1996 IEEE Symposium on Information Visualization, 28 Oct 1996.

T. Monk and k. claffy, ``Cooperation in Internet data acquisition and analysis'', in Coordination and Administration of the Internet Workshop. Kennedy School of Government, Harvard University, Cambridge, MA, 8-10 Sept 1996.

D. Mitchell, S. Bradner, and k. claffy, ``In whose domain: name service in adolescence'', in Coordination and Administration of the Internet Workshop. Kennedy School of Government, Harvard University, Cambridge, MA, 8-10 Sept 1996.

k. claffy, ``"But some data is worse than others": Measurement of the global Internet'', Tech. rep., National Laboratory for Applied Network Research (NLANR), Aug 1996.

T. Monk and k. claffy, ``A survey of Internet statistics / metrics activities'', Tech. rep., National Laboratory for Applied Network Research (NLANR), Jun 1996.

k. claffy and H.-W. Braun, ``Post-NSFNET statistics collection'', in International Networking Conference (INET) '95, Honolulu, HI, 27-29 Jun 1995, The Internet Society.

k. claffy, A Gross, and H.-W. Braun, ``Measured interference of security mechanisms with network performance'', in International Networking Conference (INET) '95, Honolulu, HI, 27-29 Jun 1995, The Internet Society.

k. claffy, H.-W. Braun, and G. Polyzos, ``A parameterizable methodology for Internet traffic flow profiling'', IEEE Journal on Selected Areas in Communications, vol. 13, no. 8, pp. 1481--94, Mar 1995.

k. claffy, Internet traffic characterization., Ph.d., UC San Diego, 1994.

R. Bohn, H.-W. Braun, k. claffy, and S. Wolff, ``Mitigating the coming Internet crunch: multiple service levels via Precedence'', Tech. rep., National Laboratory for Applied Network Research (NLANR), Nov 1994.

H.-W. Braun and k. claffy, ``Web traffic characterization: an assessment of the impact of caching documents from the NCSA's web server'', in Second International World Wide Web (WWW) Conference '94, Chicago, IL, 15-17 Oct 1994.

H.-W. Braun, B. Chinoy, and k. claffy, ``Applied Network Research: 1994 annual status report'', Annual, Applied Network Research, San Diego Supercomputer Center, 19 Apr 1994.

k. claffy, H.-W. Braun, and G. Polyzos, ``Tracking long-term growth of the NSFNET'', Communications of the ACM, Mar 1994.

k. claffy, H.-W. Braun, and G. Polyzos, ``Internet traffic flow profiling'', Tech. rep., Applied Network Research, San Diego Supercomputer Center, Mar 1994.

H.-W. Braun, B. Chinoy, k. claffy, and G. Polyzos, ``1993 annual report of the research progress of the Applied Network Research (ANR) group at SDSC'', Annual SDSC Report GA-A21648, Applied Network Research, San Diego Supercomputer Center, Dec 1993.

k. claffy, H.-W. Braun, and G. Polyzos, ``Measurement considerations for assessing unidirectional latencies'', Journal of Internetworking, vol. 4, no. 3, Sep 1993.

H.-W. Braun, k. claffy, and G. Polyzos, ``A framework for flow-based accounting on the Internet'', in IEEE Singapore International Conference on Networks (SICON). 6-11 Sep 1993, IEEE.

k. claffy, H.-W. Braun, and G. Polyzos, ``Long-term traffic aspects of the NSFNET'', in International Networking Conference (INET), San Francisco, CA, May 1993, The Internet Society.

k. claffy, H.-W. Braun, and G. Polyzos, ``Application of sampling methodologies to wide-area network traffic characterization'', in SIGCOMM 1993, San Francisco, CA, May 1993, ACM.

H.-W. Braun and k. claffy, ``Network analysis issues for a public Internet'', in Public Access to the Internet, A Harvard JFK School Workshop, Cambridge, MA, May 1993.

H.-W. Braun and k. claffy, ``Network analysis in support of Internet policy requirements'', in International Networking Conference (INET) '93, San Francisco, CA, May 1993, The Internet Society.

k. claffy, H.-W. Braun, and G. Polyzos, ``Traffic characteristics of the T1 NSFNET backbone'', in IEEE Conference on Computer Communications (INFOCOM), San Francisco, CA, Jan 1993, vol. 2, pp. 885--893, IEEE.

H.-W. Braun, B. Chinoy, k. claffy, and G. Polyzos, ``1992 annual report of the research progress of the Applied Network Research (ANR) group at SDSC'', Annual SDSC Report GA-A21224, Applied Network Research, San Diego Supercomputer Center, Dec 1992.

T. Asaba, k. claffy, O. Nakamura, and J. Murai, ``An analysis of international academic research network traffic between Japan and other nations'', in International Networking Conference (INET). Jan 1992, The Internet Society.

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