Schmid College of Science and Technology

Computational and Data Sciences

»Doctorate in Computational and Data Sciences

Computational and Data Scientists construct mathematical models, develop quantitative analysis techniques, and use computers to analyze and solve scientific real-life problems. Our mission is to provide graduates with innovative tools and a collaborative approach to meeting tomorrow’s challenges.

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  • The Ph.D. Program in Computational and Data Sciences offers an interdisciplinary and personalized course of study that emphasizes innovative research and applications of research. After completing a set of core courses teaching the basic methodologies and techniques of computational science, students will specialize in an area based on shared interests with one or more faculty mentors, culminating in a final dissertation of the student’s choice.

    Since employers continue to seek computer professionals who can combine strong technical skills with good interpersonal and business skills, the Ph.D. in Computational and Data Sciences prepares students for employment in academia, scientific research laboratories, private industry and governmental agencies. In addition to organizations under the Departments of Interior such as BLM and USGS, the Doctorate in Computational and Data Sciences offers employment opportunities with NGOs and non-profit organizations, as well as manufacturing and private sector companies.
  • Requirements for the Ph.D. in Computational and Data Sciences

    Core Courses
     (13–16 credits)
    CS 510* Computing for Scientists (3)
    CS 520 Mathematical Modeling (3)
    CS 530 Data Mining (3)
    CS 540 High–Performance Computing (3)
    CS 555 Multivariate Data Analysis (3)
    CS 595 Computational Science Seminars (1)
    * waived for students with strong computing backgrounds

    Elective and Research Courses
    (45 credits)
    15 courses selected from among the graduate courses in computer science, computational sciences, mathematics, physics and economic sciences. Courses and descriptions can be found in the Course Catalog. A minimum of 15 credits (five courses) must be at the 700 level (excluding the dissertation courses).

    Dissertation (12 credits)
    CS 797
    Dissertation Research (1–6)

    Total Credits - 70–73

    See the Chapman University Catalog for course descriptions.

    1.  Online application for admission (includes $60 non-refundable application fee)
    2.  Official transcript from degree granting institution
    3.  Graduate Admission Test Scores – The Graduate Record Examination (GRE) general test scores are required and must have been taken within the last five years.  Applicants must achieve the following minimum scores which are listed as previous version test scores and new version test scores:
    • Verbal: 500/153
    • Quantitative: 550/146
    • Analytical Writing: 4.0/4.0
    4.  Letters of recommendation – two letters of recommendation are required, including one from an academic source which describes your professional and academic abilities.
    5.  Statement of Intent – a 750 word essay.  Applicants are expected to address science topics they are interested in and how they envision applying computational science in those areas.
    6.  Resume – a resume or curriculum vitae is required.


    7.  Applicants whose first language is not English or who have completed their undergraduate degree outside of the United States are required to achieve an acceptable score on one of the following English language proficiency exams which must have been taken within 2 years of the date of application for admission to Chapman University.
    • Test of English as a Foreign Language (TOEFL),
    • International English Language Testing System (IELTS)
    • Pearson Test of English (PTE Academic) or
    • Cambridge English Advanced Exam(CAE)
    Ph.D. Computational and Data Sciences applicants must achieve a minimum score of:
    • TOEFL: 600 (PBT) or 100 (iBT)
    • IELTS: 7.0
    • PTEA: 68
    • CAE: Level C1
    8.  Complete and submit the International Graduate Student Supplemental Form

    Practical Training
    If you are an F student, you have the option of working in the United States (after one academic year of study) by engaging in practical training during your program or after it ends. Practical training can provide valuable work experience by sharpening and adding to the skills you are learning in school. There are two types of practical training available for F-1 students: curricular practical training (CPT/internship) and optional practical training (OPT). 

    Recipients of bachelor’s, master’s, and doctoral degrees in certain STEM (Science, Technology, Engineering, Mathematics) fields may be eligible for a one-time 17-month extension of post-completion OPT (for a total eligibility of up to 29 months). The 17-month Stem Extension OPT is approved by the United States Citizenship and Immigration Services (USCIS).  Our International Student and Scholar Services office will assist you with this application.  
    For questions regarding any international student services, contact Susan Sams, Specialist International Student & Scholar Services /(714) 997-6829.

    • Differential Equations
    • Data Structures
    • Probability and Statistics

    All prerequisite courses must be met by the end of the first semester.


    Tuition per credit - $1,390

    Financial assistance is available in the form of federal loans, department scholarships, teaching assistantships and research assistantships.  Most of our students receive some form of financial support from Chapman University and some receive additional aid through our industry partnerships.  Our industry partners provide scholarship funding as well as internship opportunities for our students.

    All students who submit a complete application will be automatically considered for a department scholarship.  Admitted students will be notified of scholarships soon after receiving confirmation of admission.

    More information can be found on the Financial Aid website or by contacting our Graduate FA department or (714) 628-2730.


    May 1st for fall semester enrollment.  

    See the Academic Calendar for semester start and other dates.

  • Our computational science faculty encompasses internationally renowned educators, scholars, researchers and experts in their fields committed to collaborative, faculty-mentored student research aimed at preparing graduates for the most demanding careers. The college has recruited teams of world-renowned physicists and computational scientists to work on groundbreaking concepts that combine wide-ranging subjects such as physics and engineering, mathematics and computer science, biological science, chemistry, and environmental and health science.
    Dr. Allali
    Dr. Mohamed Allali - Associate Professor of Mathematics and Computer Science

    Dr. Allali's research interests include: Applications of Digital Image Processing in Mathematics, Wavelets, Digital Signal Processing, Computational Methods for Climate Data, Linear Algebra, Mathematical Modeling, and Approximation Theory.
    Dr. El-Askary
    Dr. Hesham El-Askary - Program Director; Associate Professor of Remote Sensing and Earth System Sciences

    Dr. El-Askary’s research interests center studying the interactions and ongoing processes between the Earth’s various spheres. Specific projects under investigation include the impact of natural and anthropogenic aerosols on: cloud microphysics, hurricanes, human health, local climate as well as change detection analysis of different marine habitats stressed by local climate variability, studying global impacts on a local scale spatially and temporally with emphasis on using dimension reductions algorithms to assess handling big data.
    Dr. FahyDr. Michael Fahy - Professor; Associate Dean, Schmid College of Science and Technology

    Fordham University, Bachelor of Arts
    University of California, Santa Barbara, Master of Arts
    University of California, Santa Barbara, Ph.D. in Mathematics
    Dr. KafatosDr. Menas Kafatos - Professor, Fletcher Jones Endowed Professor of Computational Physics; Director, Center of Excellence in Earth Systems

    Research Interests: Interdisciplinary Earth system science, Natural hazards & climate change, Aerosols & pollution, Vegetation & climate change coupling, Tropical cyclones, Content-based Earth science data browsing, Black holes, active galaxies & quasars, Cosmological redshifts, Foundations of quantum theory, Quantum theory & brain dynamics.
    Dr. LinsteadDr. Erik Linstead - Assistant Professor, Instructional Faculty of Mathematics and Computer Science

    My research, in one way or another, is centered on machine learning and information retrieval.  Most of my work has involved adapting and applying these techniques to the software engineering domain and bio/chemical informatics.  I collaborate closely with the Baldi lab at UCI.  I enjoy collaborating with ambitious and enthusiastic undergraduates who are eager to perform original research.
    Dr. NayeriDr. Ali Nayeri - Assistant Professor, Instructional Faculty, Physics, Computational Science and Engineering

    Sharif University of Technology, Bachelor of Science
    Institute for Advanced Studies in Basic Sciences, Master of Science
    University of Pune, Ph.D.
    Dr. PorterDr. David Porter - Professor of Economics and Mathematics, Donna and David Janes Endowed Chair in Experimental Economics

    Dr. Porter's research interests include: Economic Systems Design, Financial Economics, and Experimental Methods.

    Dr. PrytkovaDr. Tatiana Prytkova - Assistant Professor of Chemistry and Computational Science

    Dr. Prytkova’s research interests are in computational chemistry and biophysics.

    Dr. RadenskiDr. Atanas Radenski - Professor of Computer Science

    Dr. Radenski’s research interests are in the areas of scientific computing; big data and cloud computing; parallel and distributed computing; programming languages; object-oriented computing; e-learning. Specific projects under investigation target (i) map-reduce parallel algorithms for data-intensive grid models and (ii) shared-memory and message-passing divide-and-conquer algorithms.
    Dr. RakovskiDr. Cyril Rakovski - Assistant Professor of Statistics

    Dr. Rakovski’s research interests are primarily focused in the field of statistical genetics and in particular in the design of novel statistical methods for genome-wide association studies for both family and case-control data. He is also interested in developing and applying advanced methods for analysis of complexly sampled case-control, time series, longitudinal, and survey data.
    Dr. RassentiDr. Steven J. Rassenti - Professor, Mathematics and Computer Science; Director, The Economic Science Institute

    About the Economic Science Institute
    Dr. Rassenti's research interests include: Economic Systems Design, Experimental Economics, and Organizational Design.
    Dr. SinghDr. Ramesh P. Singh - Professor, Physics, Computational Science and Engineering

    Dr. Singh's Research Interests include: Natural Hazards, Early Warning of coastal earthquakes, Soil moisture, Landslides, Snow avalanches, Floods, Dust storms, Remote sensing applications, Geophysical Explorations, Atmospheric pollution and Mining Environment.

    Dr. TollaksenDr. Jeff Tollaksen - Professor, Physics, Computational Science and Engineering; Director, Institute of Quantum Studies

    About the Institute for Quantum Studies - The mission of the Institute for Quantum Studies is to provide a focal point for students, researchers, institutions, state and national governments, and industry around the world to collaborate for the advancement of the foundations and applications of Quantum Physics.
    No Photo AvailableDr. Criselda S. Toto - Assistant Professor, Mathematics and Computer Science

    De La Salle University, Bachelor of Science
    De La Salle University, Master of Science
    Worcester Polytechnic Institute, Ph.D.
    Dr. A. VajiacDr. Adrian Vajiac - Associate Professor, Mathematics and Computer Science

    Dr. Vajiac's research interests include: Complex and Hypercomplex Analysis, Algebraic Computational Methods in Geometric and Physics PDEs, Equivariant Localization Techniques in Topological Quantum Field Theory, Foundations of Geometry, and Mathematics and Physics Education.
    Dr. VerkhivkerDr. Gennady Verkhivker - Professor of Physics, Computational Science and Engineering

    Dr. Verkhivker's research activities are in the areas of computational cancer biology, translational bioinformatics, and computational pharmacology. 

  • Anden, Raymond
    Raymond Anden
    Raymond's interests are in Predictive Analytics, Data Mining and Machine Learning. He has a B.A. In Economics and Management from UC Irvine, MBA with emphasis in Finance, MS In Predictive Analytics from Northwestern University. He is a Marketing Analyst where his role is to architect Business Intelligence platforms, automate Reports and utilize our data.  He does Sales Forecasting and Reporting on all interactions customers have with the company: Sales, Quotes, Calls, Travel Visits, Training, Web Activity, etc. 

    Arbuckle, CodyCody Arbuckle
    Cody graduated from Chapman University with a B.S. in Biological Sciences in 2014. He is currently working to complete his M.S. in data and computational sciences. His current research involves using machine learning for cell identification, classification and tracking. He is currently a junior specialist at the University of California Irvine Medical Center where he is exploring machine learning and computational techniques to improve patient doctor interaction and post-operative care.

    Burns, Ryan
    Ryan Burns
    Ryan is a Chapman Computer Science graduate and current Master’s student in Computational and Data Sciences. He played a large role in the front-end mobile development of the Autism Management Platform and is passionate about utilizing his skills in software development to positively affect the lives of others. Ryan is currently a Mobile Software Engineer at grandPad, teaches introductory computer science courses at Chapman, and has great interest in the opportunities of data analytics that his current projects can potentially introduce.

    German, Rene
    Rene German

    Rene German has been teaching as an Adjunct Professor the last 3 years but brings to the table nearly a decade of Software Engineering experience in which he shares with his students and associates. Rene has a B.S. in Computer Science and a projected (2015) M.S. in Computational Science from Chapman University.

    Holmes, KendallKendall Holmes
    Kendall Holmes grew up in Newport, RI, and graduated from Middletown High School. He is currently attending Chapman University and pursuing a B.S. in Computer Science and a M.S. in Computational Sciences for Biotechnology and Bioinformatics. Kendall works as a supplemental instructor for Physics 101. During the initial stage of the Autism Management Platform project, he worked as process lead and is now working as a software developer.

    Nguyen, DuyDuy Nguyen
    Duy Nguyen graduated with a Bachelor degree in Computer Information System and is currently pursuing his Master’s degree in Computational and Data Sciences. He’s currently working for Absolute Exhibits as a Developer/Marketing Technologist and is a member of the AMP project. Duy loves photography and vinyl records.

    Stevens, ElizabethElizabeth Stevens
    Elizabeth Stevens completed her undergraduate degree in mathematics from Chapman University in 2010. After that, she worked for a finance firm and Standard & Poor’s Ratings. She decided to return to Chapman in the fall of 2014 to pursue a graduate degree in Computational and Data Science, and is currently working with the MLAT lab on building machine learning models for clinical autism data. She also enjoys teaching calculus and computer science courses. Elizabeth is a Colorado native and certified yoga instructor.
    Tyler, David
    David Tyler
    David Tyler is concurrently completing a three-year B.S. program in Computer Science and a M.S. in Computational Sciences, both at Chapman University. Over the last eight years, he has been developing software across a variety of platforms, and currently works as a Software Engineer for a startup company. A key developer for AMP, David has been overseeing the central API and systems coordination, and also manages the behind-the-scenes technology that power the platform.

    Young, Anthony
    Anthony Young
    Anthony Young is a current undergraduate senior Computer Science major and is in the Masters program in Computational Science. He is employed as a Software Engineer at devIO in Costa Mesa. He enjoys programming and figuring out problems.


    James Troupe
    Having previously worked with Professors Tollaksen and Aharonov at George Mason University, James Troupe entered Chapman's Computational Science program in the summer of 2012. The focus of his research is the foundations of quantum mechanics and its relation to communication and computation. In the summer of 2014 James completed the Ph.D. in Computational Science -- the first doctorate awarded in the program at Chapman University. He is currently a scientist at the Applied Research Laboratories of the University of Texas at Austin pursuing research in quantum information technology.
  • Q:  How long does it take to complete the MS program? The PhD program?

    A:  The length of time it takes to complete the program varies, depending on the amount of courses taken each semester.  Students enrolled full time usually complete the MS program in two years and the PhD in four years.  Students may also attend on a part-time basis.

    Q:  How much is tuition?

    A:  As of 2015-2016, tuition is $1390 per credit.  

    Q:  What scholarships are available?

    A:  Many of our students receive some form of financial support from Chapman University and some receive additional aid through our industry partnerships.  Our industry partners provide scholarship funding as well as internship opportunities for our students.  Some scholarship search options are found on the financial aid outside scholarships page

    Q:  Can I transfer courses taken online?

    A:  Yes, we accept online courses that meet all transfer requirements and are from regionally accredited schools.  

    Q:  Can I count my MCAT/GMAT score towards the GRE requirement?

    A:  Although it depends upon the individual circumstances, we do sometimes use other test scores as a replacement for the GRE.  Please contacts us if you would like to discuss this options.

    Q:  What type of options do I have to take night time classes?

    A:  We offer late afternoon and evening courses every semester.  Students nearing the end of their program will also take more research-based independent study courses with their advisors.

    Q:  Can I send in transcripts to show coursework from non-degree granting institutions? 

    A:  Yes, we will take all courses you have completed into account for both admission and transfer credit.

    Q:  Are Chapman's Computational and Data Sciences degrees STEM (Science, Technology, Engineering, Mathematics) programs?

    A:  Yes, students in our program are eligible to apply for STEM benefits.  See the International Student & Scholar Services for more information.  You can also contact Susan Sams, Specialist International Student & Scholar Services, at or 714-997-6829, with any questions.

    Q:  What is OPT 

      Optional Practical Training or OPT allows you to work for one year, following graduation, in a job related to your major or field of study.  See the International Student & Scholar Services for more information.  You can also contact Susan Sams, Specialist International Student & Scholar Services, at or 714-997-6829, with any questions.

    Q:  What is CPT?

    A:  Curricular Practical Training or CPT allows you to participate in an off-campus paid internship that is related to your major or field of study.  See the International Student & Scholar Services for more information.  You can also contact Susan Sams, Specialist International Student & Scholar Services, at or 714-997-6829, with any questions.

    2015-2016 Graduate Catalog

    2015-2016 Academic Calendar


    Dissertation/Thesis Submission Guidelines

    Doctoral Dissertation Committee Form

    Doctoral Qualifying Examination Policy

    Graduate Assistant Handbook

    Graduate Change of Program Form

    Graduate Student Checklist - for new students

    Graduate Student Guide to Chapman

    Graduate Research Opportunities

    Independent Study and Research Course Form

    My Chapman - Panther Portal

    Program Related Resources

    Registrar Student Services

    Undergraduate Request to Register for Graduate Course Form


    After College Job Board

    Financial Aid

    International Student and Scholar Services


    Outside Scholarship Search


    Centers of Excellence

    Computer Science Industry Advisory Board

    Economic Science Institute

    Institute for Quantum Studies

    Meet up Group - Future Chief Data Scientists

    MLAT Labs
  • Congratulations to Computational and Data Sciences PhD student Louis Ehwerhemuepha!

    On May 26, 2015, Mr. Ehwerhemuepha successfully defended his PhD thesis, entitled "Contributions to nonparametric methods, stepwise model selection algorithms in logistic regression and epidemiology of general pediatric hospital readmission"

    His committee was composed of Dr. Cyril Rakovski (Chair), Dr. Atanas Radenski, Dr. Anthony Chang and Dr. Bill Feaster. The committee found that Louis' work was of high standard, original, technical, computationally sophisticated with influential results and meets the requirements for awarding a Ph.D. degree.

    Please join us in congratulating Dr. Louis Ehwerhemuepha for this significant accomplishment!

    Congratulations to Computational and Data Sciences MS student Rene German for being a 2015 recipient of the James L. Doti Outstanding Graduate Student Award!

    The highest honor for graduate students at Chapman University, the James L. Doti Outstanding Graduate Student Award is awarded annually to the outstanding graduating master’s and doctoral students with distinguished records of academic accomplishment, scholarship, and/or service. The names of the award recipients are permanently inscribed on the Doti Award trophy, which incorporates artist Nick Hernandez’s sculpture Emergence, on display in Argyros Forum. Each recipient receives a desk-size copy of the trophy, a cash award of $1,000, and is recognized at their school’s commencement ceremony.

    Mr. Rene Israel German is receiving a Master of Science in computational and data sciences. His nomination from Schmid College of Science and Technology states, “To those of us in the Schmid College that have gotten to know him since he arrived at Chapman over 12 years ago, Rene is more than just an outstanding student. He is a talented teacher, genuine mentor, and a dependable colleague.” He currently works in Chapman’s Machine Learning and Assistive Technology Lab, where he tackles research problems in autism and ABA therapy. Mr. German is an adjunct professor at Chapman and has served as Senior Software Engineer for Core Logic. Recently, he became Lead Software Engineer for grandPad, Inc.

    Fall 2015
    August 29, 2015 - Doctoral Qualifying Examination  (please email Robin Pendergraft for more information or to sign up)
    August 31, 2015 - Instruction begins
    September 7, 2015 - Labor Day (University closed)
    Nov. 23 - 27, 2015 - Thanksgiving recess (Monday-Wednesday, students, University closed Thursday-Friday)
    December 12, 2015 - Last day of instruction
    Dec. 14 - 19, 2015 - Final Examinations
    Faculty and Students in the News

    Student in a perfect storm of research

    Knowledge Byte: What is El Niño

    Big Data promises big breakthroughs

    Chapman Digital Commons - news archive


Hesham El-Askary
Program Director
(714) 289-2053

Robin Pendergraft
Program Assistant
(714) 997-6993

Graduate Admissions

Graduate Financial Aid
(714) 628-2730

Susan Sams
Specialist International Student & Scholar Services
(714) 997-6829
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