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Research 2017-05-01T21:48:41+00:00

Refereed journal articles

  1. Tarr G, Müller S and Welsh AH (2017). mplot: An R package for graphical model stability and variable selection procedures. Journal of Statistical Software. arxiv.org/abs/1509.07583
  2. Konarska M, Kuchida K, Tarr G and Polkinghorne RJ, (2017). Relationships between marbling across principal muscles. Meat Science, 123, 67-78. DOI: 10.1016/j.meatsci.2016.09.005
  3. Tarr G, Müller S and Weber NC, (2016). Robust estimation of precision matrices under cellwise contamination. Computational Statistics & Data Analysis, 93, 404-420. DOI: 10.1016/j.csda.2015.02.005
  4. Tarr G, Weber NC and Müller S, (2015). The difference of symmetric quantiles under long range dependence. Statistics & Probability Letters, 98, 144-150. DOI: 10.1016/j.spl.2014.12.022
  5. Dancer D, Morrison K and Tarr G, (2015). Measuring the effects of peer learning on students’ academic achievement in first year business statistics. Studies in Higher Education, 40(10), 1808-1828. DOI: 10.1080/03075079.2014.916671 
  6. Tarr G, Müller S and Weber NC, (2012). A robust scale estimator based on pairwise means. Journal of Nonparametric Statistics, 24(1), 187-199. DOI: 10.1080/10485252.2011.621424 
  7. Tarr G, (2012). Small sample performance of quantile regression confidence intervals. Journal of Statistical Computation and Simulation, 82(1), 81-94. DOI: 10.1080/00949655.2010.527844

Articles in preparation

  1. Tarr G, Müller S and Welsh AH. Bootstrap model selection for linear mixed models.
  2. Murray K, Tarr G and Hodkiewicz M, Statistical model selection in engineering applications.
  3. Konarska M, Tarr G and Polkinghorne RJ, The value of traditional and image analysis marbling measures in the prediction of consumer eating satisfaction.
  4. Tarr G and Polkinghorne RJ, The effect of packaging on eating quality.
  5. Tarr G and Polkinghorne RJ, Relationship between meat colour and consumer purchasing behaviour.
  6. Muir M, Drury H, Morison K, Tarr G and White F. Student Diversity: What do staff know about their students and how does it affect their teaching?

Software packages

  1. Tarr G, Müller S and Welsh AH, (2015). mplot: Graphical model stability and model selection procedures. R package.  
  2. Tarr G, (2016). StatStar: An interactive statistics education portal. Shiny web application.
  3. Tarr G and Patrick E, (2015). edgebundleR: Circle plot with bundled edges. R package.  
  4. Tarr G, (2015). pairsD3: D3 scatterplot matrices. R package.  
  5. Tarr G, (2015). Robust precision matrix estimation. Shiny web application.
  6. Martoglio E (2016). rpivotTable: Build Powerful Pivot Tables and Dynamically Slice & Dice your Data. R package (Tarr G, contributor).

Theses

  1. Tarr G, (2014). Quantile Based Estimation of Scale and Dependence. PhD Thesis. University of Sydney, Australia.
  2. Tarr G, (2009). Quantile Regression Confidence Intervals: Theoretical Exposition and Empirical Findings. Honours Thesis. University of Sydney, Australia.

Other articles

  1. Tarr G, (2017). Model selection in R.  Biometric Bulletin, International Biometric Society, 34(1).
  2. Tarr G, (2017). Interactive Data Analysis in R.  International Biometric Society Australasian Region Newsletter, 19.
  3. Tarr G, (2016). Getting data into R.  Biometric Bulletin, International Biometric Society, 33(3).
  4. Tarr G, (2016). Parallel computation in R.  Biometric Bulletin, International Biometric Society, 33(2).
  5. PethickThompson, Polkinghorne, Bonny, Tarr, Treford, Sinclair, Frette, Wierzbicki, Crowley, Gardner, Allen, Nishimura, McGilchrist, Farmer, Meng, Scollan, Duhem and Hocquette, (2015). Prédiction de la qualité de la viande de ruminants (Prediction of the meat quality of ruminants).  Viandes et produits Carnés (Meat and meat products), November 2015.
  6. Tarr G, (2015). Quantile Based Estimation of Scale and Dependence. Bulletin of the Australian Mathematical Society, 92(1), 173-175. DOI: 10.1017/S0004972715000283
  7. Tarr G and Müller S (2015). Much more than U-statistics: A symposium to celebrate Neville C. Weber. SSAI Newsletter, June 2015.
  8. Tarr G, Morrison K, Clarkeburn H, Kiemer K, and Seltsikas P, (2010). Using student demographic data for more effective learning and teaching. Teaching @ Sydney, August 2012, Issue 14.

Workshops

  1. Model selection with R. Australian National University, Canberra, Australia, 10-11 April 2017.
  2. Analytics for industry. Australian Country Choice, Brisbane, Australia, November 2016 (5 days).
  3. Data visualisation, interactive data analysis and statistical programming. BioInfoSummer, Sydney, Australia, 11 December 2015 (90 participants).
  4. Model selection with R. University of Western Australia Centre for Applied Statistics. 23-24 November 2015 (30 participants).
  5. Intensive two day workshop on using R. Meat and Livestock Australia., 19-20 October 2013.

Conference proceedings

  1. Hendry GD, Tarr G and Morrison K, (2015). The benefits of peer review versus peer observation: Facilitators’ experiences in a peer assisted study program. Paper presented at 2015 International Business & Education Conferences, June 7-11, London, UK.

Conference presentations

  1. Statistics for the Sciences. Science Teachers Association of NSW Annual Conference, Sydney, Australia, 17-18 February 2017.
  1. Robust regularised precision matrix estimation. COMPSTAT 2016, International Conference on Computational Statistics, Oviedo, Spain, 23-26 August 2016.
  2. Estimating dependence structures under cellwise contamination. IMS-APRM 2016, Institute of Mathematical Statistics Asia Pacific Rim Meeting, Hong Kong, 27-30 June 2016.
  3. Visualising variable selection with mplot. ICORS 2015 – International Conference on Robust Statistics, Kolkata, India, 12-16 January 2015.
  4. Robust methods and model selection. CARMA Retreat 2015 – Priority Research Centre for Computer-Assisted Research Mathematics and its Applications, Newcastle, Australia, 5 September 2015.
  5. Modelling, prediction and statistics with reference to MSA. International meeting on beef and lamb carcase grading to underpin consumer satisfaction, Paris, France, 20-21 August 2015.
  6. Long range dependent. Much more than U-statistics: A symposium to celebrate Neville C. Weber, Sydney, Australia, 30 January 2015.
  1. Model selection stability with mplot. International Biometric Conference, Victoria, Canada, 11-15 July 2016.
  2. Interactive and data adaptive model selection with mplot. International Biometric Society Australasian Region Conference, Hobart, Australia. December, 2015.
  3. A pairwise approach to estimating precision and covariance matrices under cellwise contamination. Robust Statistics and Extremes 2014, Australian National University, Canberra, Australia.
  4. Robust estimation of precision matrices under cellwise contamination. COMPSTAT 2014 – International Conference on Computational Statistics, Geneva, Switzerland.
  5. Robust scale and autocovariance estimation. EMS 2013 – European Meeting of Statisticians, Budapest, Hungary.
  6. Robust scale estimation and associated methods. ICORS 2013 – International Conference on Robust Statistics, St Petersburg, Russia.
  7. Robust scale estimation with extensions. YSC 2013 – Young Statisticians Conference, Melbourne, Australia.
  8. Robust covariance estimation with PnASC 2012 – Australian Statistical Conference, Adelaide, Australia.
  9. Efficient and robust scale estimation. ICORS 2011 – International Conference on Robust Statistics, Valladolid, Spain.
  10. Quantile regression confidence intervals: theoretical exposition and empirical findings. YSC 2009 – Young Statisticians Conference, Sydney, Australia.
  1. Interactive and data adaptive model selection with mplot. NSW Branch of the Statistical Society of Australia Seminar, Sydney, Australia. August 2015. Joint work with Samuel Müller (speaker) and Alan Welsh.
  2. Model selection with mplot. JSM 2015 – Joint Statistical Meeting, Seattle, United States of America. Joint work with Samuel Müller (speaker) and Alan Welsh.
  3. A start to fostering knowledge, skills and attitudes to ensure inclusive teaching environments. ISSOTL 2015 – International Society for the Scholarship of Teaching and Learning Conference 2015, Melbourne, Australia. Joint work with Meloni Muir (speaker), Helen Drury, Fiona White and Kellie Morrison.
  4. The benefits for facilitators of integrated peer review and observation in a business education program. International Business and Education Conference 2015, London, UK. Joint work with Graham Hendry (speaker) and Kellie Morrison.
  5. Knowing Your Students: An approach to encourage pedagogical creativity and change. ISSOTL 2014 – Conference of the International Society for the Scholarship of Teaching and Learning, Quebec City, Canada. Joint work with Meloni Muir (speaker), Helen Drury, Fiona White and Kellie Morrison.
  6. Robust scale estimation under long-range dependence.  JSM 2014 – Joint Statistical Meetings, Boston, United States of America. Joint work with Neville Weber (speaker) and Samuel Müller.
  7. Measuring the effects of peer learning on students’ academic achievement in first year business statistics. HERSLEB 2012 – Higher Education Research and the Student Learning Experience in Business Conference, Melbourne, Australia. Joint work with Diane Dancer (speaker) and Kellie Morrison.

Seminar presentations

  1. Data visualisation, interactive data analysis and statistical programming. University of Newcastle Statistics Seminar Series, Newcastle, Australia, May 2016.
  2. Quantile based estimation of scale and dependence. Australian National University, Mathematical Sciences Institute, Canberra, Australia, March 2016.
  3. Interactive and data adaptive model selection with mplot. The University of Newcastle, Statistics Seminar Series, Newcastle, Australia. October 2015.
  4. Visualising model selection stability. Macquarie University Statistics Seminar, Sydney, Australia. September 2015.
  5. Shiny packages in R: the mplot experience. The University of Sydney School of Mathematics and Statistics, Statistical Bioinformatics Meeting, Sydney, Australia. March 2015.
  6. A stability based approach to model selection. The University of Sydney Business School, Discipline of Business Analytics, Sydney, Australia. February 2015.
  7. Visualising variable selection: the mplot package. University of Wollongong, National Institute for Applied Statistics Research Australia (NIASRA) Fellows Research Meeting, Goulburn, Australia.  November 2014.  
  8. Robust estimation of scale and covariance with Pn and its application to principal component analysis. University of NSW, School of Mathematics and Statistics, Sydney, Australia.  April 2013.
  9. Robust estimation of scale and covariance with Pn and its application to precision matrix estimation. University of Sydney, School of Mathematics and Statistics, Sydney, Australia.  August 2013.
  1. Accuracy of the MSA model. Meat Standards Australia Taskforce Committee Meeting, Brisbane, Australia, May 2016.
  2. Meat colour and packaging. Meat Standards Australia Pathways Committee Meeting, Melbourne, Australia. April 2016.
  3. Meat colour and packaging. Teys Australia, Brisbane, Australia. March 2016.
  4. Robust methods and model selection.  Meat Standards Australia Pathways Committee Meeting, Sydney, Australia.  September 2014.

Posters

  1. My digital research toolbox. ResBaz 2015 – The Research Bazaar, Melbourne, Australia.

Grants and funding

  • University of Newcastle, CARMA funding ($2,000 in 2016)
  • University of Newcastle, New Staff Grant ($7,500 in 2016)
  • International Biometric Society Australasian Region travel grant to attend International Biometric Conference ($3,000 in 2016)
  • Meat and Livestock Australia travel grant ($3,000 in 2015; MLA project L.EQT.1605)
  • University of Newcastle PVC Conference Assistance Grant ($2,000 in 2015)
  • Australian National University Early Career Researcher Travel Grant ($2,100 in 2015)
  • Statistical Society of Australia Inc. Golden Jubilee Travel Grant ($1000 in 2013)
  • University of Sydney Postgraduate Research Support Scheme funding ($2,900 over 2011-2012).
  • University of Sydney Statistics Research Group funding ($3,100 over 2011-2013).
  • Australian Postgraduate Award, University of Sydney ($81,500 over 2010-2014).

Awards

  • First prize for the best oral presentation by a student at the 2013 Australian Young Statisticians Conference ($300).
  • EJG Pitman Prize for the most outstanding talk presented by a young statistician at the 2012 Australian Statistical Conference ($500).

Professional Service

  • Co-organiser of the International Conference on Robust Statistics (ICORS), July 3-7 2017, Wollongong, Australia.
  • Organiser of the invited paper session “Advanced Graphical and Computational Methods”, International Conference on Econometrics and Statistics (EcoSta), June 15-17 2017, Hong Kong.
  • Organiser of “Much more than U-statistics: A symposium to celebrate Neville C. Weber”, January 30 2015, Sydney, Australia (jointly with Samuel Mueller).
  • Member of the scientific program committee member, SSAI Young Statisticians Conference, 7-8 February 2013, Melbourne, Australia.
  • Chair of the scientific program committee, SSAI Young Statisticians Conference, July 14-15 2011, Brisbane, Australia.
  • Statistical consultant, Meat Standards Australia Pathways Committee (since 2015)
  • Statistics representative, University of Newcastle Industrial Mathematics Group (since 2015)
  • College contact, ANU early career researcher network (NECTAR), Australian National University (2014-2015)
  • Postgraduate representative, School of Mathematics and Statistics Research Committee (2012-2013)
  • Postgraduate representative, School of Mathematics and Statistics Board (2011-2013)
  • Student representative, Faculty of Science Board, University of Sydney (2011)
  • Statistical Society of Australia Inc. (since 2009)
  • American Statistical Association (since 2014)
  • Australian Mathematical Society (since 2011)
  • International Biometrics Society (since 2015)
  • Priority Research Centre for Computer-Assisted Research Mathematics and its Applications (CARMA)
  • Computational Statistics and Data Analysis (2)
  • Festschrift in honour of Hannu Oja
  • Sri Lankan Journal of Applied Statistics
  • Statistica Neerlandica
  • Statistics and Probability Letters
  • Australian Conference on Teaching Statistics (OZCOTS)
  • PhD Thesis (UMelb)

Links

Prospective research students

 

I’ll be here…

 

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The theoretical work is of extremely high quality and well presented… I judge this to be an outstanding thesis that easily meets all the requirements for the award of the PhD…
Prof Alan Welsh, Australian National University
In my opinion, Mr. Tarr has written a beautiful thesis… It is a pleasure to recommend the acceptance of this thesis without the slightest reservation.
Prof Stephan Morgenthaler, École polytechnique fédérale de Lausanne
The material in the thesis is well organised and presented. The dissertation is well written, in a clear and scholarly manner. The topics addressed in the thesis are well motivated.
Prof Ruben Zamar, University of British Columbia

 

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