# Contact & People

**Department of Computer Science, Mathematics, Physics and Statistics
**Irving K. Barber School of Arts and Sciences

University of British Columbia Okanagan

1177 Research Road

Kelowna, BC V1V 1V7

Canada

Email: cmps.okanagan@ubc.ca

## Our People

**Jordan Andrews**| Laboratory Coordinator | Computer Science, Data Science, Mathematics, Physics, Statistics | jordan.andrews@ubc.ca | 250.807.8540

**Jeff Andrews**| Assistant Professor | Data Science, Statistics | jeff.andrews@ubc.ca | 250.807.9931

Graduate student supervisor

**Research Interests:**Clustering and classification via mixture models with applications to bioinformatics.

**Courses & Teaching:**Statistics; data science.

**Cynthia Araujo**| Adjunct Professor | Medical Physics, Physics | cynthia.araujo@ubc.ca

Graduate student supervisor

**Research Interests:**Safe and effective use of radiation for the treatment of cancer including external beam and brachytherapy technique development and verification; implementation of new technology in radiation therapy; use of imaging in treatment planning and treatment verification.

**Deidre Batchelar**| Adjunct Professor | Medical Physics, Physics | dbatchelar@bccancer.bc.ca

Graduate student supervisor

**Research Interests:**Advanced Imaging in Brachytherapy; high precision radiotherapy.

**Heinz Bauschke**| Professor | Mathematics | heinz.bauschke@ubc.ca | 250.807.8529

Graduate student supervisor

**Research Interests:**Convex analysis and optimization, monotone operator theory, projection methods, and applications.

**Courses & Teaching:**Mathematics.

**Thor Bjarnason**| Adjunct Professor | Medical Physics, Physics | thor.bjarnason@interiorhealth.ca

Graduate student supervisor

**Research Interests:**Quality control; radiation safety; patient dose reduction; image quality assessment in planar x-ray and CT.

**Jake Bobowski**| Senior Instructor | Physics | jake.bobowski@ubc.ca | 250.807.9506

**Research Interests:**Custom microwave techniques for measuring electromagnetic properties of materials; low-temperature conductivity and penetration depth of unconventional superconductors; complex permittivity of waste-activated sludge.

**Courses & Teaching:**Experimental physics; electronics; solid state physics; statistical mechanics.

**John Braun**| Professor | Statistics | john.braun@ubc.ca | 250.807.8032

Graduate student supervisor

**Research Interests:**Computational statistics, with applications to fire science; statistical process control; statistical education.

**Courses & Teaching:**Data analysis; modelling and simulation.

**Wayne Broughton**| Associate Professor | Mathematics | wayne.broughton@ubc.ca | 250.807.9531

Graduate student supervisor

**Research Interests:**Combinatorial design theory and graph theory.

**Courses & Teaching:**Matrix algebra; applied linear algebra; cryptography; applied abstract algebra; error-correcting codes; history of mathematics; calculus.

**Edward Butz**| Associate Professor | Mathematics | edward.butz@ubc.ca | 250.807.9533

**Research Interests:**Optimal risk management strategies in neuroscience; risk management in finance.

**Courses & Teaching:**Financial derivatives; linear algebra; calculus.

**Marco Carlone**| Adjunct Professor | Medical Physics, Physics | marco.carlone@ubc.ca

Graduate student supervisor

**Research Interests:**Simulation of linear accelerators; use of magnetic fields in radiotherapy; quality assurance in radiotherapy.

**Chad Davis**| Instructor | Mathematics | chad.davis@ubc.ca | 250.807.9990

**Research Interests:**Arithmetic geometry; algebraic number theory; elliptic curves; diophantine equations.

**Courses & Teaching:**Linear algebra.

**Matt Davison**| Affiliate Professor | Statistics | mdavison@uwo.ca

**Research Interests:**Energy finance; options pricing; portfolio optimization; Real options (with application inDefense and Medicine).

**Christel Deas**| MDS (Masters of Data Science) Student Support Assistant

**Morgan Dehnel**| Adjunct Professor | Medical Physics, Physics | morgan@d-pace.com

Graduate student supervisor

**Research Interests:**Beamline; ion source; beam diagnostic device development for accelerator produced medical radio-tracers; accelerator based medical therapy.

**Sylvie Desjardins**| Associate Professor | Mathematics | sylvie.desjardins@ubc.ca | 250.807.8767

**Research Interests:**Mathematical ecology and insect dispersal.

**Courses & Teaching:**Applied mathematics; vector calculus; differential geometry; complex analysis.

**Sylvia Esterby**| Professor Emeritus | Statistics | sylvia.esterby@ubc.ca | 250.807.9536

**Research Interests:**Environmetrics and ecological statistics.

**Mir Faizal**| Instructor | Mathematics, Physics | mir.faizal@ubc.ca

**Research Interests:**Information theory and complexity; numerical analysis and dynamical systems; topological defects; quantum mechanics and its application to condensed matter systems; string theory; loop quantum gravity; astrophysics; cosmology; supersymmetry.

**Rebecca Feldman**| Assistant Professor | Computer Science, Mathematics, Medical Physics, Physics, Statistics | rebecca.feldman@ubc.ca | 250.807.8691

**Research Interests:**Medical Imaging, MRI, Pulse Sequence Design, Image Processing, Translational Imaging

**Courses & Teaching:**Physics, Waves

**Yong Gao**| Professor | Computer Science, Data Science | yong.gao@ubc.ca | 250.807.9503

Graduate student supervisor

**Research Interests:**Algorithmic and computational problems in artificial intelligence and network science; applications in social media and computational biology; graph theory and probabilistic method.

**Courses & Teaching:**Algorithm design and analysis; artificial intelligence; discrete structures; network science.

**Paramjit Gill**| Associate Professor | Data Science, Statistics | paramjit.gill@ubc.ca | 250.807.9534

**Research Interests:**Sports analytics; statistical stylometry; social networks models.

**Warren Hare**| Professor | Mathematics | warren.hare@ubc.ca | 250.807.9378

Graduate student supervisor

**Research Interests:**Mathematical optimization; nonconvex analysis; derivative-free optimization; bundle methods; applications in road design.

**Donovan Hare**| Associate Professor | Mathematics | donovan.hare@ubc.ca | 250.807.9537

**Research Interests:**Combinatorics with a focus on graph coloring problems; discrete optimization with a focus on MIP/constraint programming solutions for the high-stakes testing industry.

**Courses & Teaching:**Pure math; applied math.

**Mohammad Khalad Hasan**| Assistant Professor | Computer Science, Data Science | khalad.hasan@ubc.ca | 250.807.8077

Graduate student supervisor

**Research Interests:**Human-computer interaction, mobile and wearable (e.g., smartwatches, smart glasses) user interfaces, augmented/virtual/mixed reality, information visualization, gesture interaction, computer vision, machine learning, navigation interfaces, input devices.

**Courses & Teaching:**Human-computer interaction, user interfaces, collaborative software development, scripting and reporting, data analytics.

**Christina Haston**| Associate Professor | Medical Physics, Physics | christina.haston@ubc.ca | 250.807.9886

Graduate student supervisor

**Research Interests:**Radiation oncology; radiation biophysics.

**Courses & Teaching:**Medical physics; biophysics.

**Fatemeh Hendijani Fard**| Assistant Professor | Computer Science, Data Science | fatemeh.fard@ubc.ca | 250.807.9607

Graduate student supervisor

**Research Interests:**Software engineering; machine learning; multiagent systems; data analytics.

**Courses & Teaching:**Computer science; data science.

**Michelle Hilts**| Adjunct Professor | Medical Physics, Physics | mhilts@bccancer.bc.ca

Graduate student supervisor

**Research Interests:**Brachytherapy for breast cancer; 3D radiation dosimetry.

**Cornelia Hoehr**| Adjunct Professor | Medical Physics, Physics | choehr@triumf.ca

Graduate student supervisor

**Research Interests:**Medical isotopes; radiotherapy.

**John Hopkinson**| Senior Instructor | Physics | john.hopkinson@ubc.ca | 250.807.9504

**Research Interests:**Condensed matter theory: geometrically frustrated magnetism (spin ice, spin liquid, dimer models); hubbard ladders; mesoscopic physics; heavy fermion quantum criticality.

**Courses & Teaching:**First year physics; thermodynamics; statistical mechanics; particle physics; electromagnetism; solid state physics.

**X. Joan Hu**| Affiliate Professor | Statistics | joanh@stat.sfu.ca

**Research Interests:**Event history data; longitudinal data with latent classes; marked point processes with a spatial correlation.

**Courses & Teaching:**STAT-285. Intermediate Probability and Statistics, Fall 2018 STAT-445/645. Applied Multivariate Analysis, Spring 2019 STAT-854. Biometrics, Spring 2019

**Bowen Hui**| Instructor | Computer Science | bowen.hui@ubc.ca | 250.807.9353

Graduate student supervisor

**Research Interests:**Learning analytics; computer science education; decision making under uncertainty; probabilistic user modeling; human-computer interaction cost models; experiment design and analysis.

**Courses & Teaching:**Digital citizenship; computer programming; principles of computer science; human computer interaction; software engineering.

**Derek Hyde**| Adjunct Professor | Medical Physics, Physics | dhyde2@bccancer.bc.ca

Graduate student supervisor

**Research Interests:**Image-guided radiation therapy for high-precision treatments.

**Mehdi Jahandardoost**| Instructor | Physics | mehdi.jahandardoost@ubc.ca

**Research Interests:**Computational fluid dynamics; heat exchanger design and optimization; additive manufacturing; heat transfer; cardiovascular fluid mechanics; turbomachinery.

**Courses & Teaching:**Fluid mechanics; thermodynamics; computational fluid dynamics; turbomachinery, numerical methods, physics.

**Andrew Jirasek**| Professor | Medical Physics, Physics | andrew.jirasek@ubc.ca | 250.807.8812

Graduate student supervisor

**Research Interests:**Medical physics; radiation oncology physics; Raman spectroscopy; 3D radiation dosimetry.

**Courses & Teaching:**Medical physics; quantum mechanics; data and image processing.

**Theresa Keeler**| Department Assistant | Computer Science, Mathematics, Medical Physics, Physics, Statistics, Data Science | theresa.keeler@ubc.ca

**Youry Khmelevsky**| Honourary Affiliate | Computer Science | youry.khmelevsky@ubc.ca

**Research Interests:**Software engineering; biomedical signal processing and control; source code generation; automatic source code debugging; database security and data protection; systems of systems; big data collection and analysis.

**Courses & Teaching:**Software projects; software engineering; object oriented systems analysis and design; special database management systems; special topics in DBMS; database administration.

**Patricia Lasserre**| Associate Professor | Computer Science | patricia.lasserre@ubc.ca | 250.807.9502

Graduate student supervisor

**Research Interests:**Active learning techniques for computer science; developing tools for learning, computational thinking and design thinking; application of HCI tools and techniques to improve teaching and learning.

**Courses & Teaching:**Programming; computer vision; HCI; project management; security.

**Ramon Lawrence**| Associate Professor | Computer Science, Data Science | ramon.lawrence@ubc.ca | 250.807.9390

Graduate student supervisor

**Research Interests:**Database systems and data analytics including data integration; analysis of large-scale scientific data sets and embedded databases for Internet of Things applications; software engineering and system development.

**Courses & Teaching:**Database systems and data analytics; software development.

**Paul Lee**| Instructor | Mathematics | paul.lee@ubc.ca | 250.807.9990

**Research Interests:**Algebraic number theory: Diophantine equations, elliptic and hyperelliptic curves, intersective polynomials.

**Courses & Teaching:**Mathematics and statistics, with a concentration on calculus and business math/statistics.

**Janelle Lessard**| Senior Department Assistant | Computer Science, Mathematics, Physics, Statistics, Data Science | janelle.lessard@ubc.ca | 250.807.9563

**Jason Loeppky**| Associate Professor | Statistics | jason.loeppky@ubc.ca | 250.807.8795

**Research Interests:**Design and analysis of experiments for both physical processes and computer based simulation models; applications include environmental and industrial statistics.

**Courses & Teaching:**Statistics

**Yves Lucet**| Professor | Computer Science | yves.lucet@ubc.ca | 250.807.9505

Graduate student supervisor

**Research Interests:**Computational mathematics, optimization and convex analysis; modeling; model road design to minimize construction costs under safety and environmental constraints; creating algorithms for computer-aided convex analysis; visualizing operators in 2D, 3D, and 4D.

**Courses & Teaching:**Optimization; data structures.

**Marie-Pierre Milette**| Adjunct Professor | Medical Physics, Physics | marie-pierre.milette@ubc.ca

Graduate student supervisor

**Research Interests:**Treatment planning optimization; treatment verification.

**Abdallah Mohamed**| Instructor | Computer Science | abdallah.mohamed@ubc.ca | 250.807.8247

Graduate student supervisor

**Research Interests:**Software engineering; decision support systems (model driven and data driven); component-based software development; creative higher education.

**Courses & Teaching:**Computer fluency; computer creativity; programming; database systems; machine architecture; parallel computing.

**Dominique Monnet**| Postdoctoral Research Associate | Computer Science | dominique.monnet@ubc.ca | 250.899.4184

**Research Interests:**Operation Research

**Apurva Narayan**| Assistant Professor | Computer Science, Mechanical | apurva.narayan@ubc.ca | 250.807.8272

Graduate student supervisor

**Research Interests:**Artificial intelligence/machine learning with emphasis on explainable AI/ML and quantum machine learning; data mining; data analytics, safety and security of cyber physical systems; software engineering; graph theoretic analysis of complex systems; decision making under uncertainty.

**Courses & Teaching:**Machine learning; data structures; data mining and analytics; software engineering.

**Jim Nastos**| Instructor | Computer Science | jim.nastos@ubc.ca

**Research Interests:**Algorithms; graphs; data.

**Courses & Teaching:**Data science; computer science.

**Murray Neuman**| Associate Professor | Physics | murray.neuman@ubc.ca | 250.807.9515

**Research Interests:**Discrimination and separation of microscopic particles by optical and electromechanical methods; time series analysis; applications include possible development of new medical diagnostic methods based on physical sorting of different kinds of biological cells.

**Courses & Teaching:**Classical and quantum mechanics; optics; fluids; environmental physics.

**Ramie Nguyen Ali-Adeeb**| MSc Student | Medical Physics | ramie.ali-adeeb@ubc.ca

**Research Interests:**Radio-biological response in tissue with Raman spectroscopy.

**Dave Potkins**| Additional Collaborator | Medical Physics | dave@d-pace.com

**Research Interests:**Development and Commercialization of Beam Diagnostic Devices for accelerator-produced medical radio-tracers, and accelerator based medical therapy.

**Rasika Rajapakshe**| Adjunct Professor | Computer Science, Medical Physics | rasika.rajapakshe@ubc.ca

**Research Interests:**Medical imaging; deep learning in medical imaging; web and mobile technologies in health care; health and medical imaging informatics; cancer risk modeling; decision support systems in oncology.

**Courses & Teaching:**Introduction to medical imaging; medical imaging informatics; deep learning in medical imaging.

**Ashlee Robinson**| Senior Department Assistant | Computer Science, Mathematics, Physics, Statistics, Data Science | ashlee.robinson@ubc.ca | 250.807.9563

**Nourridine Siewe**| Postdoctoral Research Associate | Computer Science | nsiewe@mail.ubc.ca

**Research Interests:**Mathematical modeling of complex systems using differential equations, difference equations and optimal control theory.

**Courses & Teaching:**Calculus, algebra, differential equations, mathematical biology.

**Javad Tavakoli**| Associate Professor | Mathematics | javad.tavakoli@ubc.ca | 250.807.9535

Graduate student supervisor

**Research Interests:**Queueing systems; systems dynamics; and categorical algebra; applicable to computer communications and staffing facilities.

**Courses & Teaching:**Abstract algebra; linear algebra; topology; probability theory; queueing theory; modelling.

**Tony Teke**| Adjunct Professor | Medical Physics, Physics | tteke2@bccancer.bc.ca

Graduate student supervisor

**Research Interests:**Monte Carlo modeling; 4 Pi treatment planning optimization and verification; 4D dose calculation; SBRT/SRS; quality assurance tests for trajectory treatments.

**Rebecca Tyson**| Professor | Mathematics | rebecca.tyson@ubc.ca | 250.807.8766

Graduate student supervisor

**Research Interests:**Mathematical biology and spatial ecology; mathematical models of ecological systems; the development and analysis of mathematical and computational models; cyclic predator-prey populations.

**Courses & Teaching:**Mathematical biology; partial differential equations; ordinary differential equations; numerical analysis.

**Dan Vollick**| Associate Professor | Physics | dan.vollick@ubc.ca | 250.807.9512

**Research Interests:**General relativity; black holes; cosmology; string theory.

**Courses & Teaching:**Electromagnetic field theory; quantum mechanics; general relativity.

**Irene Vrbik**| Instructor | Statistics, Data Science | irene.vrbik@ubc.ca | 250.807.8872

**Research Interests:**Mixture models; supervised and unsupervised learning; computational statistics and biostatistics.

**Courses & Teaching:**Statistics, data science.

**Shawn / Xianfu Wang**| Professor | Mathematics | shawn.wang@ubc.ca | 250.807.9524

Graduate student supervisor

**Research Interests:**Variational analysis; convex analysis; optimization; classical analysis; optimization applications in signal processing; statistics; communications.

**Courses & Teaching:**Optimization; analysis; calculus.

**Yas Yamin**| Instructor | Physics | yas.yamin@ubc.ca | 250.807.9435

**Research Interests:**Heterogeneous catalysis; functional surfaces; nano science; photocatalysis; air and water treatment.

**Courses & Teaching:**Introductory physics; thermodynamics; experimental physics; modern physics laboratory.

**Qiduan Yang**| Professor Emeritus | Mathematics | qiduan.yang@ubc.ca | 250.807.9540

Graduate student supervisor

**Research Interests:**Representations of symmetric and alternating groups; galois groups of polynomials; algebraic number theory.

**Courses & Teaching:**Calculus; linear algebra; abstract algebra.

**Joseph Yang**| Adjunct Professor | Medical Physics, Physics | jyang4@bccancer.bc.ca

Graduate student supervisor

**Research Interests:**Cone beam CT image optimization; novel imaging applications in radiation therapy.

**Xinmin Yang**| Honourary Affiliate | Mathematics | xmyang@cqnu.edu.cn

**Research Interests:**Convex analysis; optimization; variational analysis.

**Courses & Teaching:**Convex analysis; vector optimization; multiobjective optimization.

**Yiqiang Zhao**| Honourary Affiliate | Mathematics | yiqiang.zhao@ubc.ca

**Research Interests:**Block-structured Markov processes and matrix-analytic methods; censoring technique and factorizations; mean-field interaction modelling in networks; quasi-stationary behaviour; tail asymptotics and kernel methods.

**Courses & Teaching:**Advanced queues; queuing networks.