# 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

Please direct all general inquires to the above email address.

### Find our people

**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.

**W. 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. Most recently, I have been focusing on visualization methodology, using a class of techniques called Data Sharpening.

**Courses & Teaching:**Modelling and Simulation. Predictive Modelling. Data Visualization.

**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**| Sessional Lecturer | Mathematics | chad.davis@ubc.ca | 250.807.8815

**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 | 250.352.5162

Graduate student supervisor

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

**Courses & Teaching:**Introduction to Medical Physics

**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

**Eric Foxall**| Assistant Professor, Tenure-Track | Mathematics | efoxall@mail.ubc.ca

**Research Interests:**Stochastic processes and mathematical biology

**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.

**Vladimir Grebenyuk**| Sessional Instructor | Computer Science | vladimir.grebenyuk@ubc.ca

**Research Interests:**Iterative Machine Learning, Autonomous Systems, Integrated Renewable Energy

**Courses & Teaching:**Computer Fluency, Digital Citizenship, Vector Graphics, Human-Computer Interaction

**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.

**Alex S Hill**| Assistant Professor | Physics | alex.hill@ubc.ca | 250.807.8919

**Research Interests:**Radio, optical, and computational astronomy. Interstellar gas, magnetic fields, and turbulence in and around the Milky Way. Photoionization and radiative transfer in interstellar gas. High velocity clouds. Cosmology and the Canadian Hydrogen Intensity Mapping Experiment (CHIME).

**Courses & Teaching:**Astrophysics

**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, Data Science, Medical Physics, Mathematics, Physics, Statistics | theresa.keeler@ubc.ca | 250.807.8866

**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.

**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, Data Science | 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.

**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, Data Science, Mathematics, Physics, Statistics | ashlee.robinson@ubc.ca | 250.807.9563

**Mohamed Shehata**| Assistant Professor | Computer Science | mohamed.sami.shehata@ubc.ca | 250.807.9063

**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.