I've had the pleasure of working with great
students.
Most of what I really understand in my field, I
learned in working with them.
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Bob Carter
PhD 1998
Performance
Measurement and Prediction in Packet-Switched Networks: Techniques and
Applications
Bob's thesis was focused on how to choose the best server when data is
replicated in the Internet, which we called the “server selection
problem.” To address this, Bob built, validated, and distributed the
first robust tools for bottleneck bandwidth measurement. Subsequent to
Bob's work, a number of other reseachers picked up the problem and it has
become an active area of ongoing investigation.
Bob is currently (2018) Software Engineering Manager at Leidos.
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Paul Barford
PhD 2000
Modeling,
Measurement, and Performance of World Wide Web Transactions
Paul's thesis was motivated by the simple question: “Why is the Web so
slow?” - which turned out to have very interesting answers. In the
process, Paul developed statistical models of Web workloads, a
distributed Web measurement platform, and an innovative method for
analyzing Web transactions based on the idea of critical path analysis.
Paul is currently (2018) Professor, Department of Computer
Science, University of Wisconsin (Madison).
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Jun Liu
PhD 2002
Characterizing Network
Elements and Paths Using Packet Loss Behavior
Jun's thesis work concentrated on trying to understand the
conditions during packet loss in the Internet. He developed methods
for estimating buffer sizes in routers, and for isolating lossses in
wireless settings, based on the technique he developed called “loss pairs.”
Jun is currently (2011) Associate Professor, Department of Computer
Science, University of North Dakota.
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Anukool Lakhina
PhD 2006
Network-Wide Traffic
Analysis: Methods and Applications
Anukool's thesis research was concerned with a new kind of traffic
analysis, namely network-wide. He developed the first methods for
characterizing and understanding the ensemble of traffic
flows in a network as a whole. He showed that the resulting methods have
considerable power for detecting and classifying network anomalies.
Anukool is currently (2018) Founder and President at Guavus, a Thales Company.
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Nahur Fonseca
PhD 2008
Stochastic Modeling Applied
to Detection Problems in Network Protocols and Traffic
Nahur's thesis research looked at ways that stochastic models could be used
to improve network performance. He used Bayes detectors
to improve TCP's packet loss identification algorithm, and he showed the
existence of a new kind of long-range memory in network traffic, which
has implications for anomaly detection.
Nahur is currently (2018) Senior Performance Engineer at Akamai, Inc.
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Vijay Erramilli
PhD 2008
Forwarding in Mobile Opportunistic Networks
Vijay's thesis research looked at a new kind of network: one formed by people
as they carry around mobile devices like phones. He characterized these
networks’
properties, and developed new, efficient forwarding
algorithms for use in such networks.
Vijay is currently (2023) Principal Data Scientist at Salesforce, Inc.
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Gonca Gürsun
PhD 2013
Inferring Hidden Features in the Internet
Gonca's thesis research developed new ways of estimating properties of the Internet that are hard or impossible to directly measure. She showed how to infer both the path that traffic takes and the amount of traffic that flows in situations where those quantities can't be directly observed. To do this she developed new metrics for analyzing routing, and new methods of traffic inference.
Gonca is currently (2023) Product Owner / Activity Lead at Bosch Center for Artificial Intelligence.
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Andrej Cvetkovski
PhD 2013
Graph Embeddings for Low-Stretch Greedy Routing
Andrej's thesis research developed algorithms and heuristics to improve greedy routing – routing in which a packet is forwarded to the neighbor closest to the destination. Andrej's work made heavy use of hyperbolic geometry, and relied on embedding network nodes in the Poincare disk. He showed how to enable growing graphs, embed weighted graphs with low distortion, and achieve greedy routing with low stretch (short paths).
Andrej is currently (2020) Associate Professor, Faculty of Computer
Science, Mother Teresa University, Skopje,
North Macedonia.
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Natali Ruchansky
PhD 2016 coadvised with Evimaria Terzi
Matrix Completion with Structure
Natali's thesis developed new insights into problems involving
low-rank matrix completion. While most matrix completion work is
statistical in nature, Natali took fundamentally combinatorial
approaches, developing an organizing framework and then a new
combinatorial algorithm for active matrix-completion. She also
developed new methods for identifying low-rank submatrices in a
partially-observed matrix.
Natali is currently (2023) Manager, Machine Learning at Netflix.
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Giovanni Comarela
PhD 2017
On the Dynamics of Interdomain Routing in the Internet
Giovanni's thesis work developed new tools (algorithms and
metrics) to analyze the behavior of interdomain routing
over time. He developed a data mining approach to detecting
large-scale changes in Internet routing that re-occur many times over
long timescales, and he showed how to identify the link or Autonomous
System (AS) most
likely to be reponsible for those events. He also developed new
metrics and algorithms for indentifying unusually-routed ASes, and
used them to shed light on how global routing patterns have evolved
over a thirteen-year period.
Giovanni is currently (2023) Assistant Professor of Computer Science at
the Universidade Federal do Espirito Santo, Brazil.
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Larissa Spinelli
PhD 2019
Empirical Studies of Factors Affecting Opinion Dynamics
Larissa's thesis asked about what happens when humans and Internet
systems are connected in a feedback loop. She looked at how
recommender systems and human opinions can each shape the other, how the
features of online product reviews affect the evolution of ratings, and
how recommender systems like YouTube guide users away from reliable information.
Larissa is currently (2020) Software Engineer in Algorithms and Data
Science at Wayfair.
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Bashir Rastegarpanah
PhD 2021
Tools for Responsible Decision-Making in Machine Learning
Bashir's thesis developed new methods for improving the social and ethical
impacts of machine learning systems. He developed a novel method for improving
the fairness of recommender systems based on augmenting the training data,
and a new formalization and associated auditing algorithms for verifying compliance of machine learning systems with the principle of data minimization.
Bashir is currently (2023) Data Scientist at Fiddler AI.
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Ahmed Youssef
PhD 2023 coadvised with Andrew Emili
Computational Models to Uncover Cell State Proteomes and
Profile Protein Interaction Dynamics
Ahmed's thesis developed a new analysis pipeline for studying the remodeling
of protein interactions from dynamic CF/MS data. He also developed a novel
deconvolution algorithm allowing bulk proteomics measurements paired with
single-cell RNA profiles, to be separated into protein abundance measures on a
cell-state basis.
Ahmed is currently (2023) Bioinformatics Scientist at Acrivon Therapeutics.
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If you'd like to read more about any of these projects,
all of the
papers I have written with my students are available from my publications page.