PhD Alumni

Jan Gorzny

Ph.D. 2022
Advisor: Jonathan Buss
Thesis Title: Related Orderings of AT-Free Graphs
Now: Blockchain researcher
@ Quantstamp

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Hong Zhou

Ph.D. 2020
Advisor: Lap Chi Lau
Thesis Title: A Spectral Approach to Network Design and Experimental Design
Now: Professor
@ Fuzhou University

Dimitrios Skrepetos

Ph.D. 2018
Advisor: Timothy Chan
Thesis Title: Shortest Paths in Geometric Intersection Graphs

Martin Derka

Ph.D. 2017
Advisor: Therese Biedl
Thesis Title: Restricted string representations

Hamideh Vosoughpour

Ph.D. 2017
Advisor: Anna Lubiw
Thesis Title: Straight Line Movement in Morphing and Pursuit Evasion

Vincent Russo

Ph.D. 2017
Advisor: John Watrous & Michele Mosca
Thesis Title: Extended Nonlocal Games

Vinayak Pathak

Ph.D. 2015
Advisor: Anna Lubiw
Thesis Title: Reconfiguring Triangulations

Amer Mouawad

Ph.D. 2015
Advisor: Naomi Nishimura
Thesis Title: On Reconfiguration Problems

Alessandro Cosentino

Ph.D. 2015
Advisor: John Watrous
Thesis Title: Quantum State Local Distinguishability via Convex Optimization

Jazmin Romero

Ph.D. 2015
Advisor: Alex Lopez-Ortiz
Thesis Title: Generalized Set and Graph Packing Problems

Mehdi Mirzazadeh

Ph.D. 2014
Advisor: Alex Lopez-Ortiz
Thesis Title: Efficient Evaluation of Set Expressions

Robin Kothari

Ph.D. 2014
Advisor: Andrew Childs & John Watrous
Thesis Title: Efficient Algorithms in Quantum Query Complexity

Robert Fraser

Ph.D. 2013
Advisor: Alex Lopez-Ortiz
Thesis Title: Algorithms for Geometric Covering and Piercing Problems

Krishnam Raju Jampani

Ph.D. 2011
Advisor: Anna Lubiw
Thesis Title: Simultaneous Graph Representation Problems

Gus Gutoski

Ph.D. 2010
Advisor: John Watrous
Thesis Title: Quantum Strategies and Local Operations

Reza Dorrigiv

Ph.D. 2010
Advisor: Alex Lopez-Ortiz
Thesis Title: Alternative Measures for the Analysis of Online Algorithms

Christina Boucher

Ph.D. 2010
Advisor: Daniel Brown and Prabhakar Ragde
Thesis Title: Combinatorial and Probabilistic Approaches to Motif Recognition

Zhi Xu

Ph.D. 2009
Advisor: Jeffrey Shallit
Thesis Title: The Frobenius Problems in a Free Monoid

Mustaq Ahmed

Ph.D. 2009
Advisor: Anna Lubiw
Thesis Title: Constrained Shortest Paths in Terrains and Graphs

Arash Farzan

Ph.D. 2009
Advisor: Ian Munro
Thesis Title: Succinct Representation of Trees and Graphs

Alexander Golynski

Ph.D. 2008
Advisor: Ian Munro and Prabhakar Ragde
Thesis Title: Upper and Lower Bounds for Text Indexing Data Structures

Meng He

Ph.D. 2008
Advisor: Ian Munro
Thesis Title: Succinct Indexes

Burkay Genc

Ph.D. 2008
Advisor: Therese Biedl
Thesis Title: Reconstruction of Orthogonal Polyhedra

Dalia Krieger

Ph.D. 2008
Advisor: Jeffrey Shallit
Thesis Title: Critical Exponents and Stabilizers of Infinite Words

Matthew Skala

Ph.D. 2008
Advisor: Ian Munro
Thesis Title: Aspects of Metric Spaces in Computation

Jason Hinek

Ph.D. 2007
Advisor: Douglas Stinson and Mark Giesbrecht
Thesis Title: On the Security of Some Variants of RSA

Tarique Islam

Ph.D. 2007
Advisor: Jonathan Buss
Thesis Title: Characterizing Hardness in Parameterized Complexity

Michael J. Spriggs

Ph.D. 2007
Advisor: Therese Biedl and Anna Lubiw
Thesis Title: Morphing Parallel Graph Drawings

Ehsan Chiniforooshan

Ph.D. 2007
Advisor: Naomi Nishimura
Thesis Title: Intersperse Coloring

Claude-Guy Quimper

Ph.D. 2006
Advisor: Alex Lopez-Ortiz
Thesis Title: Efficient Propagators for Global Constraints

Masud Hasan

Ph.D. 2005
Advisor: Therese Biedl and Alex Lopez-Ortiz
Thesis Title: Reconstruction and Visualization of Polyhedra Using Projections

Brona Brejova

Ph.D. 2005
Advisor: Ming Li and Daniel Brown
Thesis Title: Evidence Combination in Hidden Markov Models for Gene Prediction

Ming-wei Wang

Ph.D. 2004
Advisor: Jeffrey Shallit
Thesis Title: Periodicity and repetition in combinatorics on words

Erik Demaine

Ph.D. 2001
Advisor: Anna Lubiw and Ian Munro
Thesis Title: Folding and Unfolding

Jianghai Fu

Ph.D. 1996
Advisor: Naomi Nishimura
Thesis Title: Pattern Matching in Directed Graphs

Master's Alumni

Amin Khodaee

Masters
Advisor: Ian Munro
Thesis Title: The Pair Cache Problem

Matthew Regehr

Masters 2023
Advisor: Gautam Kamath
Thesis Title: A Bias-Variance-Privacy Trilemma for Statistical Estimation
Now: PhD
@ uwaterloo

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Alex Bie

Masters 2023
Advisor: Gautam Kamath & Shai Ben-David
Now: Research Engineer
@ Huawei

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Mahbod Majid

Masters 2023
Advisor: Gautam Kamath
Thesis Title: Efficient and Differentially Private Statistical Estimation via a Sum-of-Squares Exponential Mechanism
Now: PhD
@ CMU Machine Learning

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Graeme Stroud

Masters 2022
Advisor: Anna Lubiw
Thesis Title: Computing Realistic Terrains from Imprecise Elevations

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Sam Barr

Masters 2022
Advisor: Therese Biedl
Thesis Title: List Coloring Some Classes of 1-Planar Graphs

Karthik Murali

Masters 2022
Advisor: Therese Biedl
Thesis Title: Testing Vertex Connectivity of Bowtie 1-plane Graphs

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Rory Soiffer

Masters 2022
Advisor: Shalev Ben-David
Thesis Title: A Generalized Adversary Method for Quantum Query Complexity
Now: CEO
@ Loco Motion Devs

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Joseph Meleshko

Masters 2022
Advisor: Jeffrey Shallit
Thesis Title: Automata and Ratio Sets

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Christian Covington

Masters 2022
Advisor: Gautam Kamath & Xi He
Thesis Title: Unbiased Statistical Estimation and Valid Confidence Intervals Under Differential Privacy
Now: PhD
@ Harvard Biostatistics

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Abhishek Anand

Masters 2022
Advisor: Shalev Ben-David
Thesis Title: On the power of interleaved low-depth quantum and classical circuits
Now: PhD
@ CalTech

Trevor Clokie

Masters 2021
Advisor: Jeffrey Shallit
Thesis Title: Counting Flimsy Numbers via Formal Language Theory

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William Sigouin

Masters 2020
Advisor: Trevor Brown
Thesis Title: Concurrent Data Structures Using Multiword Compare and Swap

Pavle Bulatovic

Masters 2020
Advisor: Therese Biedl
Thesis Title: Area-efficient drawings of outer-1-planar graphs

Samin Riasat

Masters 2019
Advisor: Jeffrey Shallit
Thesis Title: Powers and anti-powers in binary words

John Wittnebel

Masters 2019
Advisor: Therese Biedl
Thesis Title: Bounds on Maximum Matchings in 1-Planar Graphs

Azin Nazari

Masters 2019
Advisor: Ian Munro and Semih Salihoglu
Thesis Title: Majority in the Three-Way Comparison Model

Kaleb Alway

Masters 2019
Advisor: Eric Blais and Semih Salihoglu
Thesis Title: Domain Ordering and Box Cover Problems for Beyond Worst-Case Join Processing

Taylor Hornby

Masters 2018
Advisor: John Watrous
Thesis Title: Concentration Bounds from Parallel Repetition Theorems

Kshitij Jain

Masters 2018
Advisor: Anna Lubiw
Thesis Title: Minimum Shared-Power Edge Cut

Aayush Rajasekaran

Masters 2018
Advisor: Jeffrey Shallit
Thesis Title: Using Automata Theory to Solve Problems in Additive Number Theory

Thomas Finn Lidbetter

Masters 2018
Advisor: Jeffrey Shallit
Thesis Title: Counting, Adding, and Regular Languages

Taylor Smith

Masters 2017
Advisor: Jeffrey Shallit
Thesis Title: Properties of Two-Dimensional Words

Sajed Haque

Masters 2017
Advisor: Jeffrey Shallit
Thesis Title: Discriminators of Integer Sequences

Krishna Vaidyanathan

Masters 2017
Advisor: Naomi Nishimura
Thesis Title: Reconfiguring Graph Colourings

Camila Perez Gavilan Torres

Masters 2017
Advisor: Alex Lopex-Ortiz, Ian Munro
Thesis Title: Performance of the Ultra-Wide Word Model

V. Abhinav Bommireddi

Masters 2017
Advisor: Eric Blais
Thesis Title: Testing submodularity

Nathaniel Harms

Masters 2017
Advisor: Eric Blais
Thesis Title: Halfway to halfspace testing

Alexandre Daigle

Masters 2016
Advisor: Alex Lopez-Ortiz and Ian Munro
Thesis Title: Optimal Path-Decomposition of Tries

Seunghee Lee

Masters 2016
Advisor: Therese Biedl and Timothy Chan
Thesis Title: Upward Octagonal Drawings of Ternary Trees

Matthew Robertson

Masters 2015
Advisor: Ian Munro
Thesis Title: Inverting Permutations In Place

Neeraj Kumar

Masters 2015
Advisor: Therese Biedl and Sebastian Fischmeister
Thesis Title: Graph-theoretic Properties of Control Flow Graphs and Applications

Stephen Kiazyk

Masters 2014
Advisor: Anna Lubiw
Thesis Title: The Star Unfolding from a Geodesic Curve

Hicham El-Zein

Masters 2014
Advisor: Ian Munro
Thesis Title: On the Succinct Representation of Equivalence Classes

Alex Leong

Masters 2012
Advisor: Jeffrey Shallit
Thesis Title: Variations on the Erdos Discrepancy Problem

Soroush Hosseini Alamdari

Masters 2012
Advisor: Therese Biedl
Thesis Title: Planar Open Rectangle-of-Influence Drawings

Terry Anderson

Masters 2011
Advisor: Therese Biedl
Thesis Title: The Vulcan game of Kal-toh

Thomas Ang

Masters 2010
Advisor: Jeffrey Shallit
Thesis Title: Problems Related to Shortest Strings in Formal Languages

Elena Lesvia Ruiz Velazquez

Masters 2010
Advisor: Therese Biedl
Thesis Title: Drawing planar graphs with prescribed face areas

Benjamin J. Lafreniere

Masters 2008
Advisor: Anna Lubiw
Thesis Title: Packing Unit Disks

David Loker

Masters 2007
Advisor: Naomi Nishimura and Kate Larson
Thesis Title: Representations and Parameterizations of Combinatorial Auctions

Narges Simjour

Masters 2006
Advisor: Naomi Nishimura
Thesis Title: A New Optimality Measure for Distance Dominating Sets

Prashant Sasatte

Masters 2006
Advisor: Jonathan Buss
Thesis Title: Cache Considerations in Algorithm Design

Danny Sheng Zhang

Masters 2005
Advisor: Douglas Stinson
Thesis Title: Algorithms for Detecting Cheaters in Threshold Schemes

Philip Henderson

Masters 2005
Advisor: Therese Biedl
Thesis Title: Planar Graphs and Partial k-Trees

Ian Harrower

Masters 2005
Advisor: Daniel Brown
Thesis Title: Haplotype inference using pure parsimony

Neeraj Dumir

Masters 2005
Advisor: Ian Munro
Thesis Title: Improved Searching in the Presence of Permanent Faults

Kar Yee (Henry) Au

Masters 2005
Advisor: Douglas Stinson
Thesis Title: Unconditionally Secure Authentication Codes and Digital Signatures

Abdullah Al-Mahmood

Masters 2005
Advisor: Timothy Chan
Thesis Title: Approximation Algorithms for Rectangle Piercing Problem

Fengkai Zhang

Masters 2004
Advisor: Daniel Brown
Thesis Title: Incoporating Spaced Seeds into PSI-BLAST Search

Sayyed Bashir Sadjad

Masters 2004
Advisor: Timothy Chan
Thesis Title: Geometric Optimization Problems over Sliding Windows and Similarity Search in Metric Spaces

Mehdi Mirzazadeh

Masters 2004
Advisor: Naomi Nishimura
Thesis Title: Adaptive Comparison-Based Algorithms for Evaluating Set Queries

Narad Rampersad

Masters 2004
Advisor: Jeffrey Shallit
Thesis Title: Infinite Sequences and Pattern Avoidance

Peter Olsar

Masters 2004
Advisor: Naomi Nishimura and Prabhakar Ragde
Thesis Title: Updating the Vertex Separation of a Dynamically Changing Tree

Jiang Liu

Masters 2004
Advisor: Daniel Brown
Thesis Title: A Combinatorial Approach for Motif Discovery in Unaligned DNA Sequences

Arash Farzan

Masters 2004
Advisor: Ian Munro
Thesis Title: Cache-Oblivious Searching and Sorting In Multisets

Eric Chen

Masters 2004
Advisor: Timothy Chan
Thesis Title: Towards In-Place Algorithms in Computational Geometry

Bryan Krawetz

Masters 2004
Advisor: Jeffrey Shallit
Thesis Title: Monoids and the state complexity of root(L)

Alexander Hudek

Masters 2004
Advisor: Daniel Brown
Thesis Title: New anchoring techniques for global multiple alignment of genomic sequences

Shabnam Aziza

Masters 2004
Advisor: Therese Biedl
Thesis Title: Hexagonal Grid Drawings

Mustaq Ahmed

Masters 2004
Advisor: Naomi Nishimura
Thesis Title: Ordered Interval Routing Schemes

Dana Wilkinson

Masters 2002
Advisor: Therese Biedl
Thesis Title: Bounded-Degree Independent Sets in Planar Graphs

Andrew Martinez

Masters 2002
Advisor: Jeffrey Shallit
Thesis Title: Topics in Formal Languages

Lesley Macpherson

Masters 2002
Advisor: Jeffrey Shallit
Thesis Title: Grey Level Visual Cryptography for General Access Structures

Keith Ellul

Masters 2002
Advisor: Jeffrey Shallit
Thesis Title: Descriptional Complexity Measures of Regular Languages

Mohammad Taghi Hajiaghayi

Masters 2001
Advisor: Naomi Nishimura
Thesis Title: Algorithms for Graphs of (Locally) Bounded Treewidth

Yashar Ganjali

Masters 2001
Advisor: Naomi Nishimura
Thesis Title: Multi-dimensional Interval Routing Schemes

Michael Domaratzki

Masters 2001
Advisor: Jeffrey Shallit
Thesis Title: Minimal covers of formal languages