Return to the homepage
  • Library
  • UC Online
  • News
  • Events
  • Maps
  • Staff
  • Work at UC
  • Covid-19
  • Study
    • Study
      • Arts
      • Business and Law
      • Education, Health and Human Development
      • Engineering
      • Science
      • All departments
      • Online learning
      • Subjects
      • Courses and qualifications
      • Scholarships
      • Examinations
      • Graduation
      • Postgraduate study
      • Key dates
      • Publications
      • Study abroad and exchanges
      • Work integrated learning
      • Academic support
      • Special consideration
      • Graduate Profile
      • Summer School
      • Quick Links
      • LEARN
      • Logins
      • Timetables
      • Library
      • Scholarships
      • Transcripts
      • Grading
  • Admissions
    • Enrol at UC
      • Enrolment process
      • Application dates
      • Check eligibility
      • Document requirements
      • International student enrolment
      • Undergraduate applications
      • Grad and postgrad applications
      • PhD and doctoral degrees applications
      • Transition programmes applications
      • Special applications
      • Transfer credits
      • Check or change your application
      • Change address
      • Contact us
      • Quick Links
      • Enrol now with myUC
      • Re-enrol now with myUC
      • Qualifications and courses
      • Fees and funding
      • Scholarships
      • Transcripts
  • Research
    • Research
      • Become a research student
      • Find a supervisor
      • Postgraduate study
      • Research specialties
      • Facilities and equipment
      • Centres, groups, institutes
      • IRD approved research provider
      • IP Commercialisation
      • Find an expert or consultant
      • Research in the community
      • Working in research
      • News, innovations and awards
      • Research & Innovation people
      • Quick Links
      • Find an expert
      • Find a supervisor
      • Jobs at UC
      • Ethics approval
      • Postgraduate forms
      • Library (research)
  • Life
    • Life
      • The campus
      • Facilities
      • Getting around
      • Student life
      • Accommodation
      • Support services
      • Sustainability
      • Know The Code
      • UC Students' Association (UCSA)
      • CCR
      • Golden Key
      • Health, safety and wellbeing
      • Life in CHCH
      • Life in NZ
      • Get active
      • Canterbury Card
      • Quick Links
      • UCGo
      • Maps
      • Parking
      • Health Centre
      • UC RecCentre
      • Student events
      • Clubs and societies
  • Support services
    • Support services
      • Finding support
      • Need to talk?
      • Health Services
      • Academic support
      • Disability support
      • Financial assistance
      • Academic grievances
      • Equity and diversity
      • Parents and whānau
      • Job and careers advice
      • New student support
      • Current student support
      • Postgraduate student support
      • High school student support
      • Adult student support
      • International student support
      • LGBTQI student support
      • Māori student support
      • Pasifika student support
      • Onsite services
      • Quick Links
      • In an emergency
      • Security
      • Raise a concern
      • IT Services
      • Academic Skills Centre
      • Library (support)
      • Contacts
      • Wellbeing Hub
  • Engage
    • Engage
      • Alumni
      • Business and industry
      • Canterbury University Press
      • Communications and Engagement
      • Community programmes
      • External exam invigilation
      • Find an expert or consultant
      • Giving to UC
      • International partnerships
      • Knowledge Commons
      • News
      • School resources
      • Work at UC
      • Work placements
      • Quick Links
      • Donate to UC
      • Contact UC
      • Current vacancies
      • Erskine Fellowship
      • News
      • Public events
      • Liaison Office
  • About
    • About
      • What is special about UC
      • UC7
      • Ako - Learning & Teaching
      • Governance
      • Leadership
      • Health and Safety
      • People and Culture
      • Capital Works
      • History
      • Information and Records Management
      • Contacts
  • Logins
    • Logins
      • LEARN
      • Zoom
      • Student email
      • Postgraduate email
      • myUC
      • My Timetable
      • Canterbury Card Account
      • My Library Account
      • OneDrive
      • UC CareerHub
      • Assyst Self Service
      • Password Reset
      • UCGO
      • ourUC
      • Staff logins
      • More logins
Skip to main content
uc-research-profile logo

Use the Tab and Up, Down arrow keys to select menu items.

  • UC Research Profile
  • Search
  • Browse
    • Subject areas and disciplines
    • Colleges and departments
  • Administration
    • Email SPARK Administrator
    • Update your SPARK page in Profiler (Staff Only)
  • Quick Links
    • Research at UC

Dr Rachael Tappenden

Contact

Department: Mathematics and Statistics

Email: rachael.tappenden@canterbury.ac.nz

Direct Dial: +64 3 3692437

Office: Jack Erskine 714

Language: English

About
Research / Creative works
Networks

Fields of Research

  • Optimization
  • Numerical linear algebra

Researcher Summary

My research interests lie in the broad area of optimization and numerical linear algebra.

Subject Area: Disciplines

  • Mathematics: Applied Mathematics

Research/Scholarly/Creative Works

  • Coope I. and Tappenden R. (2019) Efficient calculation of regular simplex gradients. Computational Optimization and Applications 72(3): 561-588. http://dx.doi.org/10.1007/s10589-019-00063-3. (Journal Articles)
  • Fountoulakis K. and Tappenden R. (2018) A flexible coordinate descent method. Computational Optimization and Applications 70(2): 351-394. http://dx.doi.org/10.1007/s10589-018-9984-3. (Journal Articles)
  • He X., Tappenden R. and Takáč M. (2018) Dual Free Adaptive Minibatch SDCA for Empirical Risk Minimization. Frontiers in Applied Mathematics and Statistics 4 http://dx.doi.org/10.3389/fams.2018.00033. (Journal Articles)
  • Tappenden R., Takáč M. and Richtárik P. (2018) On the complexity of parallel coordinate descent. Optimization Methods and Software 33(2): 372-395. http://dx.doi.org/10.1080/10556788.2017.1392517. (Journal Articles)
  • Robinson DP. and Tappenden R. (2017) A Flexible ADMM Algorithm for Big Data Applications. Journal of Scientific Computing 71(1): 435-467. http://dx.doi.org/10.1007/s10915-016-0306-6. (Journal Articles)
  • Ma C., Tappenden R. and Takac M. (2016) Linear convergence of randomized feasible descent methods under the weak strong convexity assumption. Journal of Machine Learning Research 17(230): 1-24. (Journal Articles)
  • Tappenden R., Richtárik P. and Gondzio J. (2016) Inexact Coordinate Descent: Complexity and Preconditioning. Journal of Optimization Theory and Applications 170(1): 144-176. http://dx.doi.org/10.1007/s10957-016-0867-4. (Journal Articles)
  • Tappenden R., Richtárik P. and Büke B. (2015) Separable approximations and decomposition methods for the augmented Lagrangian. Optimization Methods and Software 30(3): 643-668. http://dx.doi.org/10.1080/10556788.2014.966824. (Journal Articles)
  • Tappenden R., Hegarty J., Broughton R., Butler A., Coope I. and Renaud P. (2013) X-ray image enhancement via determinant based feature selection. Australasian Physical & Engineering Sciences in Medicine 36(4): 449-455. http://dx.doi.org/10.1007/s13246-013-0221-1. (Journal Articles)
  • Peng., H., Hengyong., Y., Thayer., P., Xin., J., Qiong. and X. (2012) Preliminary experimental results from a MARS micro-CT system. Journal of X-Ray Science and Technology 20(2): 199-211. http://dx.doi.org/10.3233/XST-2012-0329. (Journal Articles)
  • Broughton RL., Coope ID., Renaud PF. and Tappenden RE. (2011) A box constrained gradient projection algorithm for compressed sensing. Signal Processing 91(8): 1985-1992. http://dx.doi.org/10.1016/j.sigpro.2011.03.003. (Journal Articles)
  • Broughton RL., Coope ID., Renaud PF. and Tappenden REH.. (2011) Recovery of localised structure from signals with non-sparse components. In ANZIAM Journal 52: 567-580. (Conference Contributions - Published)
  • Tappenden REH. (2011) Development and Implementation of Algorithms for Fast Image Reconstruction. Christchurch, New Zealand. University of Canterbury. (Theses / Dissertations)
  • Broughton R., Coope I., Renaud P. and Tappenden R. (2010) Determinant and exchange algorithms for observation subset selection. IEEE Transactions on Image Processing 19(9): 2437-2443. http://dx.doi.org/10.1109/TIP.2010.2048150. (Journal Articles)
  • Broughton R., Coope I., Renaud P. and Tappenden R.. (2010) Recovery of localised structure from signals with non-sparse components. In ANZIAM Journal 52: 567-580. (Conference Contributions - Published)
  • Broughton R., Coope I., Renaud P. and Tappenden R. (2009) A Barzilai-Borwein $l_1$-Regularized Least Squares Algorithm for Compressed Sensing.1-16. (Reports)

Review and Refereeing

  • IEEE Transactions on Pattern Analysis and Machine Intelligence ( 2012 - 2021)
  • Journal of Machine Learning Research ( 2012 - 2021)
  • Optimization Methods and Software ( 2012 - 2021)
  • SIAM Journal of Optimization ( 2012 - 2021)

Research Groups

  • Computational Mathematics
UC Library
Research & Innovation
University of Canterbury
Private Bag 4800
Christchurch 8140
New Zealand
Research & Innovation Admin
Phone +64 3 369 5858
admin@research.canterbury.ac.nz
Research Profile Administrator
pbrfprofileradmin@canterbury.ac.nz
Back to top
  • GENERAL ENQUIRIES
  • +64 3 369 3999
  • info@canterbury.ac.nz
  • ENROLMENT ENQUIRIES
  • 0800 VARSITY (0800 827 748)
  • enrol@canterbury.ac.nz
  • INTERNATIONAL ENQUIRIES
  • +64 3 364 3443
  • (Aus) 1-800-431595
  • Ask a question
  • CONTACTS & DIRECTORIES
  • University contacts
  • Student contacts
  • Students' Association
  • A–Z of Support Services
  • Find a researcher (Research Profile)
  • Accommodation
  • Maps
  • Donate online
  • UC on Facebook
  • UC on Twitter
  • UC on youTube
  • UC on Instagram
  • UC on Snapchat
  • UC on LinkedIn
  • UC on WeChat
  • DEPARTMENTS
  • All departments
  • College of Arts
  • College of Business and Law
  • UC Business School
  • College of Education, Health and Human Development
  • College of Engineering
  • UC Health
  • School of Law
  • College of Science
  • Service areas
  • LATEST
  • News
  • Events
  • Publications
  • Work at UC
  • Info for media
  • Style Guide
  • TOOLS
  • LEARN
  • UC Policy Library
  • Library
  • myUC
  • IT account
  • Student email
  • OneDrive
  • Timetable
  • Staff email
  • Intranet (Staff)
  • Copyright Feedback Privacy Cookies Declaration Payment Data
  • Emergency Information
  • © University of Canterbury - A Fair Trade University