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Adrian O'Hagan

Lecturer/Assistant Professor

School Of Mathematics & Statistics
Science Centre - South
Belfield
Dublin 4

Tel: +353 1 7162428
Email: adrian.ohagan@ucd.ie

Biography

Graduate of UCD's Bachelor of Actuarial and Financial Studies degree. Completed MSc Statistics and PhD Statistics in UCD in 2006 and 2012 respectively. Currently working as a Lecturer in Statistics and Actuarial Science in the UCD School of Mathematics and Statistics.

Professional

Honours and Awards

Year: 2014.
Title: Institute and Faculty of Actuaries Research Travel Grant
Year: 2014.
Title: Society of Actuaries in Ireland Research Bursary
Year: 2014.
Title: Institue and Faculty of Actuariaes Research Travel Grant
Year: 2014.
Title: UCD Seed Funding
Year: 2005.
Title: Society of Actuaries in Ireland Prize
Year: 2007.
Title: Science Foundation Ireland (SFI) PhD Funding
Year: 2003.
Title: Eaglestar Life Prize in Actuarial Mathematics
Year: 2003.
Title: Irish Life Prize in Statistics
Year: 2001.
Title: UCD Entrance Scholar
Year: 2004.
Title: Watson-Wyatt Prize in Survival Models
Year: 2004.
Title: LifeStrat Prize in Stochastic Models

Associations

Association: Institute and Faculty of Actuaries, Function/Role: Examiner for Certified Actuarial Analyst qualification
Association: Institute and Faculty of Actuaries, Function/Role: Standard setting reviewer for Certified Actuarial Analyst qualification
Association: Institute and Faculty of Actuaries, Function/Role: Question writer for Certified Actuarial Analyst qualification
Association: Journal of Computational Statistics and Data Analaysis, Function/Role: Reviewer
Association: Royal Statistical Society, Function/Role: Member
Association: Journal of Statistics and Computing, Function/Role: Reviewer
     

Conference Contributions

Adrian O'Hagan and Colm Ferrari (2015) Model based clustering as a data compression tool for actuarial modelling. [Invited Oral Presentation], Society of Actuaries in Ireland Continuing Professional Development Event, Dublin, Ireland , 15-JAN-15 - 15-JAN-15.
Adrian O'Hagan (2013) MNIGclust: clustering using the multivariate normal inverse Gaussian distribution. [Invited Oral Presentation], Actuarial Mathematics Workshop, University of Leicester , 19-MAR-13 - 20-JUN-13.
Adrian O Hagan and Colm Ferrari (2014) Model based clustering for data compression in actuarial applications. [Oral Presentation], European Actuarial Journal Conference, Vienna Institute of Technology, Austria , 10-SEP-14 - 12-SEP-14.
Dr Adrian O'Hagan (2014) An Empirical-copula based method for estimating upper tail dependence in insurance loss data. [Invited Oral Presentation], Society of Actuaries in Ireland Continuing Professional Development Event, Dublin , 18-MAR-14 - 18-MAR-14.
Adrian O Hagan and Colm Ferrari (2014) Model based clustering for data compression in actuarial applications. [Oral Presentation], 49th Actuarial Research Conference, University of California, Santa Barbara , 13-JUL-14 - 16-JUL-14.
Adrian O Hagan (2014) Model Based Clustering for Data Compression in Actuarial Applications. [Oral Presentation], International Congress on Actuarial Science and Quantitative Finance, University of Bogota, Colombia , 17-JUN-14 - 20-JUN-14.
Adrian O'Hagan and Colm Ferrari (2014) Model Based Clustering as an Approach to Data Compression for Analysing Actuarial Data. [Oral Presentation], GIRO 2014, Celtic Manor, Wales , 22-SEP-14 - 26-SEP-14.
Adrian O Hagan (2014) Estimating Upper Tail Dependence for Insurance Loss Data using an Empirical Copula-based Approach. [Poster Presentation (Refereed)], International Working Group on Statistical Modelling, University of Gottigen, Germany , 14-JUL-14 - 18-JUL-14.
Adrian O'Hagan, Jason Wyse and Susan O'Carroll (2013) Bayesian Model Averaging as an Initialization Method for the EM algorithm. [Oral Presentation], Conference of Applied Statistics in Ireland, NUI Maynooth , 15-MAY-13 - 17-MAY-13.
Adrian O Hagan and Colm Ferrari (2014) Model based clustering: a spatial approach to actuarial modelling. [Invited Oral Presentation], Working Group on Model Based Clustering, University College Dublin , 21-JUL-14 - 25-JUL-14.
Adrian O'Hagan and Arthur White (2014) Bayesian Model Averaging Starting Values for Multivariate and Network Data. [Poster Presentation (Refereed)], Working Group on Model Based Clustering, University College Dublin , 21-JUL-14 - 25-JUL-14.
Dr Claire Gormley, Prof Brendan Murphy, Dr Adrian O'Hagan (2013) MclustVarEst: Jackknife and Bootstrap Methods of Variance Estimation in Model Based Clustering. [Invited Oral Presentation], Working Group on Model Based Clustering, University of Bologna , 22-JUL-13 - 26-JUL-13.
Adrian O Hagan (2010) Computational Aspects of Fitting Mixture Models via the EM Algorithm. [Oral Presentation], Research Students Conference, Univesity of Warwick , 01-MAR-10 - 03-MAR-10.
Brendan Murphy, Adrian O Hagan (2011) Clustering Using the Multivariate Normal Inverse Gaussian Distribution. [Oral Presentation], Working Group on Model Based Clustering, Glasgow , 13-JUL-11 - 15-JUL-12.
Adrian O Hagan (2011) Clustering Using the Multivariate Normal Inverse Gaussian Distribution. [Oral Presentation], Conference of Applied Statistics in Ireland, NUI Galway , 01-MAY-11 - 04-MAY-11.
Adrian O Hagan (2012) Jackknife and Bootstrap Methods of Variance Estimation in Model-Based Clustering. [Oral Presentation], Conference of Applied Statistics in Ireland, Dundalk , 01-MAY-12 - 03-MAY-12.

Committees

Committee : Organising Committee for 102nd European Study Group with Industry.
Committee : UCD Internship Forum and Steering Committee for Internships
Committee : School of Mathematical Sciences Postgraduate Committee
Committee : School of Mathematical Sciences Public Relations Committee

Employment

Employer: Imagine Reinsurance
Position: Actuarial work placement trainee
Employer: UCD
Position: Senior Tutor
Employer: UCD
Position: Occasional Lecturer

Education

Year 2005 Institution: University College Dublin
Qualification: BSc Subject:
Year 2012 Institution: University College Dublin
Qualification: PhD Subject:
Year 2006 Institution: University College Dublin
Qualification: MSc Subject:

Languages

French:

Consultancy

Client: Davy Stockbrokers
     

Publications

     

Peer Reviewed Journals

Stefan Cutajar, Helena Smigoc and Adrian O'Hagan (2017) 'Actuarial risk matrices: the nearest positive semidefinite matrix problem'. North American Actuarial Journal, 21 (3). [DOI] [Details]
Adrian O'Hagan and Colm Ferrari (2016) 'Model-based and non-parametric approaches to clustering for data compression in actuarial applications'. North American Actuarial Journal, . [DOI] Link to full text [Details]
O'Hagan, A., Murphy, T.B., Gormley, I.C., McNicholas, P. and Karlis, D. (2016) 'Clustering using the multivariate normal inverse Gaussian distribution'. Computational Statistics and Data Analysis, 93 :18-30. [DOI] [Details]
O Hagan, A., Murphy, T.B. and Gormley, I.C. (2012) 'Computational aspects of fitting mixture models via the Expectation-Maximisation algorithm'. Computational Statistics and Data Analysis, 56 (12):3843-3864. [DOI] Link to full text [Details]
 

Conference Publications

Adrian O'Hagan, Stefan Cutajar and Helena Smigoc (2016) Actuarial Risk Matrices: the Nearest Positive Semidefinite Matrix Problem 51st Actuarial Research Conference [Details]
Adrian O'Hagan, Stefan Cutajar and Helena Smigoc (2016) Actuarial Risk Matrices: the Nearest Positive Semidefinite Matrix Problem . In: Cathy Robertson eds. Actuarial Teachers and Researchers' Conference [Details]
Adrian O'Hagan (2015) Bayesian Model Averaging for Copula-based Estimation of Upper Tail Dependence in Loss Distributions Proceedings of the International Workshop on Statistical Modelling , 06-JUL-15 - 10-JUL-15 [Details]
Adrian O'Hagan and Robert Mc Loughlin (2014) Estimation of Upper Tail Dependence for Insurance Loss Data Using an Empirical Copula-based Approach . In: Jim Booth (Cornell University, Ithaca, USA) Maria Durban (Universidad Carlos III de Madrid, Spain) Gillan Heller (Macquarie University, Sydney, Australia) Thomas Kneib (Georg-August-Universität Göttingen, Germany) Arnost Komarek (Univerzity Karlovy v Praze, Czech Republic) Stefan Lang (Universität Innsbruck, Austria) Vito Muggeo (Università degli Studi di Palermo, Italy) Mikis Stasinopoulos eds. Proceedings of the International Workshop on Statistical Modelling University of Gottigen, Germany, , 14-JUL-14 - 18-JUL-14 [Details]
Brazys, S.; O'Hagan, A.; Panke, D. (2013) Can't Buy Me Love: New Evidence on Vote Buying in the UNGA International Studies Association Annual Convention San Francisco, CA, , 02-APR-13 - 07-APR-13 [Details]
                                                                                                                 

Research

Research Interests

Actuarial Science, Model-based Clustering and Classification, Model Averaging, Copulas, Tail Dependency for Insurance Loss Data, Political Science.                      

Research Projects

Sponsor : Irish Research Council (IRC)
Title : Model-based Clustering for Detecting Alcohol Genome Effects Transmitted from Mother to Baby in Epigenetics Data (EpiGen)
Start Date / End Date : 01-FEB-15 / 30-JUN-15
Sponsor : University College Dublin (UCD)
Title : Modelling Insurance Claim Tail Dependencies using an Empirical Copula Based Approach - Conference Presentation, Journal Publication and R Package Production.
Start Date / End Date : 01-APR-14 / 30-SEP-15

Recent Postgraduates

MSc Actuarial Science Students

Garvan Dowling, "An R Shiny Package for Insurance Data Visualisation Under Solvency II", 2016, in collaboration with TokioMarine Kiln

Karan Malhotra, "Hedging strategies for hourly traded tick data", 2015, in collaboration with Susquehanna International Group.

Robert Benson, "Approaches to Clustering for Compression of Mixed Actuarial Data", 2015, in collaboration with Aegon Ireland. 

Rui Yin, "Modelling and Sensitivity Testing for Operational Risk Management", 2014, in collaboration with Kiln Group, London.

Gerard Coffey, "Model Averaging Methods for Capturing Tail Dependency Using Copulas", 2014.

Robert McLoughlin, "Investigating Copula-based Approaches to Estimating Tail Dependence in Insurance Loss Distributions", 2013, in collaboration with Kiln Group, London.

 
MSc Statistics Students 
 
Sean MacDhonnagain, "Least Squares Monte Carlo Methods for Insurance Risk Hedging", 2015-16, in collaboration with Aegon Ireland 

Colm Ferrari, "Approaches to Clustering for Data Compression in Actuarial Applications", 2013-14, in collaboration with Milliman, Seattle.
 
Susan O'Carroll, "Bayesian Model Averaging as an Initialization Method for the EM Algorithm", 2012-2013.

Current Postgraduate Students

Sen Hu, Doctor of Philosophy (PhD)   -   Thesis Co-Supervisor

Teaching

Teaching Philosophy

My teaching philosophy is to formulate the content and delivery style of each lecture to the audience and lesson objectives at hand. I utilize practical, real-world examples that are relevant to the future career of the audience wherever possible, emphasizing software applications and related topics in other subjects.
       

Innovation & Leadership

Successfully incorporated research placements in the MSc Actuarial Science programme, allowing students to complete their research dissertation in the form of an applied, paid industrial placement with one of a range of leading insurance and financial companies in Dublin and London.

Collaborators

Internal Collaborators

Dr Samuel Brazys, School of Political Science, UCD.
Prof Brendan Murphy, School of Mathemtaics and Statistics, UCD.
Dr Claire Gormley, School of Mathematics and Statistics, UCD.
Dr Damien McParland, School of Mathematics and Statistics, UCD.
Dr Helena Smigoc, School of Mathematics and Statistics, UCD.
 

                 

External Collaborators

Dr Diana Panke, Department of Political Science, University of Freiburg.
Prof Paul McNicholas, Department of Statistics, University of Guelph.
Prof Dimitris Karlis, Department of Statistics, University of Athens.
Mr Brian Heffernan, FIA, Chief Actuary, Kiln Group Ltd.
Mr Craig Reynolds, Principal and Consulting Actuary, Milliman.
Mr Avi Freedman, Principal Actuary, Milliman.
Mr Aatman Dahti, Actuarial Trainee, Milliman.
Dr Arthur White, Trinity College Dublin.
Mr Paul Marron, FIA, Actuary, Aegon Ireland. 
Mr Daragh Hayes, FIA, Actuary, Aegon Ireland.
Dr Jason Wyse, Trinity College Dublin. 
Mr Colm Ferrari, Aegon Ireland.
Mr Stefan Cutajar, Gen Re, Malta.