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Kimberly Claffy (kc claffy)

kc claffy

  • Principal investigator for the distributed Center for Applied Internet Data Analysis (CAIDA);
  • Senior research scientist at the UC San Diego’s Supercomputer Center (SDSC);
  • Adjunct Professor in UC San Diego’s Computer Science and Engineering Department (CSE).
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Contact Information

kc claffy
aka Kimberly Claffy
Google Scholar

Background

Kimberly C. Claffy ("kc claffy") leads the Center for Applied Internet Data Analysis (CAIDA) in its scientific research and infrastructure activities. CAIDA's research activities focus on independent (third-party) assessments of the security, stability, and resilience of the Internet's underlying infrastructure, including its addressing, routing, and naming systems.

As the Internet infrastructure has matured, these research areas require interdisciplinary effort, including expertise in economics and policy as well as legal and ethical use of data. kc leads CAIDA's infrastructure activities, including software development, and data collection, management, curation, and sharing to support Internet research around the world, with focus on the health and integrity of the global Internet ecosystem.

Recent empirical studies cover the following topics:

  • Internet cartography and performance measurement
  • Analyses of data supporting security of the Internet addressing, routing, and naming (DNS) systems
  • Analyses of operator uptake of best practices supporting Internet routing security

Recent infrastructure projects include:

  • New 100GB monitoring platform to support sharing of traffic data with academic researchers
  • Collaboration with U. Oregon's RouteViews project to expand this platform to support a wider range of scientific research
  • Global Measurement Infrastructure Design project, to support support our design and prototyping of a new highly distributed network measurement platform capable of capturing several types of data relevant to security research, as well as hosting new vetted experiments.

Annual reports of CAIDA's activities are at: https://www.caida.org/about/annualreports/.

Last Publications

Paper icon Different Policies for Different NodeBs: Comparing Downlink Schedulers in Cellular Base Stations. Z. Zhang, J. Larrea, J. Huddleston, H. Wan, R. Mok, B. Huffaker, k. claffy, K. Jamieson, A. Marder, A. Schulman.
Passive and Active Measurement Conference (PAM), Feb 2026.
Paper icon Through a Smaller Lens: Revisiting Opportunistic Analysis using Network Telescopes. B. Degen, N. Kempen, k. claffy, R. Mok, R. Holz, R. Van Rijswijk-Deij, R. Sommese, M. Jonker.
Passive and Active Measurement Conference (PAM), Feb 2026.
Paper icon Country-in-the-Middle: Measuring Paths between People and their Governments. A. Ukani, K. Izhikevich, S. Mittal, M. Patel, S. Srinath, K. Ly, k. claffy, A. Snoeren.
arXiv:2512.13994v1, Dec 2025.
Paper icon Towards Understanding City-Level Routing using BGP Location Communities. T. Krenc, S. Hariprasad, M. Luckie, B. Donnet, k. claffy.
ACM SIGCOMM Conference on emerging Networking EXperiments and Technologies (CoNEXT), Dec 2025.
Paper icon Noisy Neighbours: Keep the Neighbourhood Quiet. E. Jaw, T. Krenc, M. Müller, k. claffy, L. Nieuwenhuis, C. Hesselman.
International Conference on Network and Service Management (CNSM), Oct 2025.
Paper icon R&E Routing Policy: Inference and Implication. M. Luckie, S. Wallace, K. Newell, J. Bartig, S. Koçak, N. Den Otter, K. Koole, J. Deaton, k. claffy.
ACM Internet Measurement Conference (IMC), Oct 2025.
Paper icon Hilby: Hilbert Interactive Prefix Plots. A. Männel, k. claffy, R. Mok, T. Schmidt, M. Wählisch.
ACM SIGCOMM Demo, Sep 2025.
Paper icon Active Internet measurement to support policy research. k. claffy, S. Hariprasad, M. Luckie, D. Clark.
ACM IMC Workshop of Policy-Relevant Internet Measurements and Experimentation (PRIME), Aug 2025.

Recent Honors and Awards

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