Dr Ryan Admiraal
Ph.D., University of Washington

Senior Lecturer

About me

I am a senior lecturer in mathematics and statistics, teaching primarily statistics units and carrying out research in statistical methodology with applications to the social and life sciences. My primary statistics research is largely concentrated on models for social network analysis (exponential random graph models, revealed preference models), their application in simulating the course of sexually transmitted diseases, and incorporating network structures believed to be instrumental in disease transmission. A separate area of research is water supply in the developing world context, including water economics and impact of assessment of various water supply, sanitation, and hygiene interventions.

Teaching area

Units that I have recently coordinated include:

  • MAS164/OMAS110 Fundamentals of Mathematics
  • MAS222 Probability and Statistical Inference
  • MAS223 Applied Statistics
  • MAS224 Biostatistical Methods
  • MAS353 Statistical Design and Data Analysis
  • MAS514 Research Methods in Mathematics and Statistics
  • MAS540 Mathematics for Teaching Secondary (7-10)
  • MAS4012 Bayesian Statistics
  • BBS300 Empirical Research for Business
  • ICT513 Data Analytics

Research areas

My research is focused primarily on the statistical analysis of social networks.  This research involves adapting exponential random graph models and revealed preference models for use in the simulation of the course of contact-based diseases, specifically sexually transmitted diseases.  An important component of this is developing methods that allow for both the estimation of key network structures for explaining the rate of disease transmission and disparities in prevalence for different groups (e.g., races, age groups, geographical regions) and their incorporation in seed (or initial) networks for simulation. Other statistics research includes using survey methodology and log-linear models in analysing the consistency of ego reports of shared outcomes (e.g., friendship, sexual partnerships, children) in cross-sectional (or egocentric) survey data as well as a variety of other applied statistics problems. Additional research in the area of water supply in the developing world context considers issues related to the economic sustainability of various forms of water supply as well as impact assessment of water supply, sanitation, and hygiene interventions.

Awards and grants

Australian Development Research Awards Scheme (May 2013 – October 2015)
Using natural resource wealth to improve access to water and sanitation (Mozambique)
A$538,642

Australia Africa Universities Network (March 2014 – October 2014)
Integrating HIV and gender-related issues into environmental assessments for Australian mining companies operating in Africa
A$14,000

Events and speaking engagements

  1. Admiraal, R. and Handcock, M.S., (2016), Modeling concurrency and selective mixing in heterosexual partnership networks with applications to sexually transmitted diseases. Presented at the Joint Statistical Meetings, Chicago, USA, 30 July-4 August.
  2. Admiraal, R., Sequeira, A.R., McHenry, M.P., Doepel, D., Herculano, L.M.L., Baronet da Conceicao, S., Monguela, A.S., Urama, K., and Manzambi, O., (2015), How infrastructure can benefit from the presence of mining: A case study in water delivery in Mozambique. Presented at the Australian Development Research Awards Scheme Programme Roadshow: “Making Growth Inclusive: The Role of Mining in the Post-2015 Development Agenda for Africa”, Abuja, Nigeria, 6 October.
  3. Admiraal, R., Sequeira, A.R., McHenry, M.P., Doepel, D., Herculano, L.M.L., Baronet da Conceicao, S., Monguela, A.S., Urama, K., and Manzambi, O., (2015), Using natural resource wealth to improve access to water and sanitation. Presented at the Australian Development Research Awards Scheme Programme Roadshow: “Making Growth Inclusive: The Role of Mining in the Post-2015 Development Agenda for Africa”, Maputo, Mozambique, 2 October.
  4. Admiraal, R., Sequeira, A.R., McHenry, M.P., and Doepel, D., (2015), Maximising the impact of mining investment in water infrastructure for local communities. Presented at the 4th Annual Africa Australia Research Forum: Teamwork in Africa – Working Together for Positive Outcomes, Perth, Australia, 2 September.
  5. James, I., Koh, J., and Admiraal, R., (2015), Analysis of times to threshold based on sequential observations and weighted Cox models. Presented at the 36th Annual Conference of the International Society for Clinical Biostatistics, Utrecht, Netherlands, 23-27 August.
  6. Morrison-Saunders, A., Admiraal, R., McHenry, M.P., and Doepel, D., (2014), Planning for HIV prevention in the extractive industry in Africa through enhanced environmental impact assessment. Presented at the 37th African Studies Association of Australasia and the Pacific Conference: “Africa: Diversity and Development”, Dunedin, New Zealand, 25-26 November.
  7. Mason, S., Newsome, D., Moore, S., and Admiraal, R., (2014), Response of vegetation to recreational trampling damage in a global biodiversity hotspot: indicative data from three national parks. Presented at the MEDECOS XIII International Mediterranean Ecosystems Conference: “Crossing Boundaries Across Disciplines and Scales”, Olmue, Chile, 6-9 October.
  8. Admiraal, R. and Handcock, M.S., (2014), Modeling concurrency and selective mixing in heterosexual partnership networks with applications to sexually transmitted diseases. University of California at Los Angeles Department of Statistics Seminar Series, Los Angeles, CA, USA, January.
  9. Admiraal, R. and Handcock, M.S., (2013), Generating heterosexual partnership networks with degree distributions and mixing totals estimated from egocentric data. SSAI WA Branch Seminar Series, Perth, WA, Australia, March.
  10. Admiraal, R. and Handcock, M.S., (2012), Assessing the consistency of ego reports of dyadic outcomes with applications to fertility and sexual partnerships. SSAI WA Branch Seminar Series, Perth, WA, Australia, March.
  11. Admiraal, R. and Handcock, M.S., (2010), Revealed preference models for network inference. Australian Statistical Conference 2010: “Statistics in the West: Understanding Our World”, Perth, WA, Australia, December.
  12. Admiraal, R., Handcock, M.S., and Morris, M., (2008), Models for selective mixing and concurrency in dynamic heterosexual networks. SIAM Annual Meeting, San Diego, CA, USA, July.
  13. Rendall, M.S., Admiraal, R., Handcock, M.S., and Joyner, K., (2006), Early entry to fatherhood estimated from men’s and women’s survey reports in combination. Presented at the National Survey of Family Growth Research Conference, Hyattesville, MD, USA, 19-20 October.
  14. Rendall, M.S., Admiraal, R., Handcock, M.S., Joyner, K., Peters, H.E., and Yang, F.T., (2006), A Bayesian approach to combining population and survey data for male fertility estimation. Presented at the Population Association of America Annual Meeting Program, Los Angeles, CA, USA, 20 March – 1 April.

Professional and community service

Statistical Society of Australia (SSAI)

  • Secretary of the Western Australia Branch (2011-2015)

Australia Africa Universities Network

Doctoral and masters supervisions

Shu Hui Koh (2013-2017)

Publications

Journals

  • Admiraal, R., Sequeira, A., McHenry, M., Doepel, D., (2017), Maximizing the impact of mining investment in water infrastructure for local communities, The Extractive Industries and Society, 4, 2, pages 240 - 250.
  • Worrell, T., Admiraal, R., Bateman, P., Fleming, P., (2017), Are tourism and conservation compatible for island tame species?, Animal Conservation: the rapid publication journal for quantitative studies in conservation, 20, , pages 155 - 163.
  • Koh, S., Li, H., Sivasithamparam, K., Admiraal, R., Jones, M., Wylie, S., (2017), Evolution of a wild-plant tobamovirus passaged through an exotic host: Fixation of mutations and increased replication, Virus Evolution, 3, 1, pages 1 - 6.
  • Admiraal, R., Handcock, M., (2016), Modeling concurrency and selective mixing in heterosexual partnership networks with applications to sexually transmitted diseases, Annals of Applied Statistics, 10, 4, pages 2021 - 2046.
  • Koh, S., Ong, J., Admiraal, R., Sivasithamparam, K., Jones, M., Wylie, S., (2016), A novel member of the Tombusviridae from a wild legume, Gompholobium preissii, Archives of Virology, 161, 10, pages 2893 - 2898.
  • Mason, S., Newsome, D., Moore, S., Admiraal, R., (2015), Recreational trampling negatively impacts vegetation structure of an Australian biodiversity hotspot, Biodiversity and Conservation, 24, 11, pages 2685 - 2707.
  • Admiraal, R., Handcock, M., (2015), A log-linear modelling approach to assessing the consistency of ego reports of dyadic outcomes with applications to fertility and sexual partnerships, Royal Statistical Society. Journal. Series A: Statistics in Society, 178, 2, pages 363 - 382.
  • Koh, S., Li, H., Admiraal, R., Jones, M., Wylie, S., (2015), Catharanthus mosaic virus: A potyvirus from a gymnosperm, Welwitschia mirabilis, Virus Research, 203, , pages 41 - 46.
  • Kobryn, H., Lantzke, R., Bell, R., Admiraal, R., (2015), Remote sensing for assessing the zone of benefit where deep drains improve productivity of land affected by shallow saline groundwater, Journal of Environmental Management, 150, , pages 138 - 148.
  • Admiraal, R., (2014), Using baseline surveys to inform interventions and follow-up surveys: a case-study using the Nampula Province Water, Sanitation, and Hygiene Program, Journal of Water, Sanitation and Hygiene for Development, 4, 3, pages 410 - 421.
  • Barrington, D., Admiraal, R., (2014), Learning by design: lessons from a baseline study in the NAMWASH Small Towns Programme, Mozambique, Waterlines: international journal of water, sanitation and waste, 33, 1, pages -.

Conference

  • Rendall, M., Admiraal, R., DeRose, A., DiGiulio, P., Handcock, M., Racioppi, F., (2006),Estimating first birth probabilities in Italy by combining population and survey data.,In: 43rd Scientific Meeting of the Italian Statistical Association (2006).