## Dr Julia Piantadosi |
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Position: |
Research Fellow | |

Division/Portfolio: |
Division of Information Technology, Engineering and the Environment | |

School/Unit: |
School of Information Technology and Mathematical Sciences | |

Campus: |
Mawson Lakes Campus | |

Office: |
OC1-34 | |

Telephone: |
+61 8 830 23193 | |

Fax: |
+61 8 830 25785 | |

Email: |
Julia_dot_Piantadosi_at_unisa_dot_edu_dot_au | |

URL for Business Card: |
http://people.unisa.edu.au/Julia.Piantadosi |

## Links to other sites

School of Information Technology and Mathematical Sciences

Centre for Industrial and Applied Mathematics (CIAM)

SA Water Centre for Water Management and Reuse

Australian Mathematical Society

Modelling and Simulation Society of Australia and New Zealand

Goyder Institute for Water Research

Derivation of matrix formulae for Modelling Systems of Reservoirs Using Structured Markov Chains

20th International Congress on Modelling and Simulation (MODSIM2013)

## Teaching interests

- Mathematical Communication
- Mathematical Modelling
- Mathematical Methods for Engineers 1

## Professional associations

Secretary of the Australian and New Zealand Industrial and Applied Mathematics (ANZIAM) Executive Committee 2012 - 2014.

Committee member of the Modelling and Simulation Society of Australia and New Zealand (MSSANZ) 2012 - 2014.

Member of the Australian Water Association (AWA) 2000 - 2014.

South Australian Chair of ANZIAM (Australian and New Zealand Industrial and Applied Mathematics) 2010 - 2013.

Elected Member of the Australian Mathematical Society and ANZIAM (Australian and New Zealand Industrial and Applied Mathematics) Executive Committee 2009 - 2011.

## Qualifications

2004 Doctor of Philosophy (Mathematics)

1999 Bachelor of Applied Science (Honours) (Industrial and Applied Mathematics)

1998 Bachelor of Applied Science (Mathematical and Computer Modelling)

## Research interests

- Stochastic applied optimal control in the area of water management.
- Markov Decision Processes and Matrix Analytic Methods in stochastic modelling.
- Multi-dimensional copulas; multi-dimensional checkerboard copula of maximum entropy; multi-dimensional normal checkerboard copula. Application to stochastic rainfall models.
- Stochastic Dynamic Programming framework using Conditional Value-at-Risk to study risk assessment for water management systems; decomposition approaches.
- Convex Analysis and Nonlinear Optimization; The theory of Fenchel duality.
- Climate Change: Development of an agreed set of climate projections for South Australia; proactive responses to climate change in water resources management.
- Mathematical modelling and design of permeable pavements to mitigate urban flooding, reduce pollution and enable harvesting, treatment and reuse of urban stormwater.

## Research publications

Borwein, J., Howlett, P., Piantadosi, J. (2014) Modelling and Simulation of Seasonal Rainfall Using the Principle of Maximum Entropy. Entropy, Vol. 16, pp. 747-769.

Howlett, P.G., Pearce, C.E.M., Piantadosi, J. A new look at urban water storage in a series of connected dams, Journal of Applied Probability Vol. 51, No. 1 (accepted 10 May 2013; to appear March 2014).

Chowdhury, R., Beecham, S., Boland, J., Piantadosi, J. Understanding South Australian rainfall trends and step changes, International Journal of Climatology (2014) Online: DOI:10.1002/joc.3982.

Borwein, J., Howlett, P., Piantadosi, J. Modelling and simulation of seasonal rainfall. In Gaertner, P., Bowden, F., Piantadosi, J. and Mobbs, K. (eds) 22nd National Conference of the Australian Society for Operations Research (ASOR 2013). The Australian Society for Operations Research, Adelaide, December 2013, pp. 300-306.

Ahamed, S., Piantadosi, J., Agrawal, M., Boland, J. Generating synthetic rainfall using a disaggregation model. In Piantadosi, J., Anderssen, R.S. and Boland J. (eds) MODSIM2013, 20th International Congress on Modelling and Simulation. Modelling and Simulation Society of Australia and New Zealand, December 2013, pp. 2506–2512. ISBN: 978-0-9872143-3-1. www.mssanz.org.au/modsim2013/L5/ahamed.pdf

Zakaria, R., Howlett, P., Piantadosi, J., Boland, J., Moslim, N.H. (2013) Modelling catchment rainfall using sum of correlated gamma variables, Jurnal Teknologi, Vol. 63, No. 2, pp. 85-88.

Piantadosi, J., Howlett, P., Borwein, J. (2012) Copulas with Maximum Entropy, Optimization Letters: Volume 6, Issue 1, 99-125.

Piantadosi, J. Howlett, P., Borwein, J., Henstridge, J. (2012) Maximum entropy methods for generating simulated rainfall, Numerical Algebra, Control and Optimization, NACO: Volume 2, No. 2, 233-256.

Piantadosi, J. Howlett, P., Borwein, J., Henstridge, J. (2011) Generation of simulated rainfall data at different time-scales, In Chan, F., Marinova, D. and Anderssen, R.S. (eds) MODSIM2011, 19th International Congress on Modelling and Simulation. Modelling and Simulation Society of Australia and New Zealand, December 2011, pp. 1652-1658. ISBN: 978-0-9872143-1-7. http://mssanz.org.au/modsim2011/F4/piantadosi.pdf.

Piantadosi, J., Howlett, P., Bean, N. and Beecham, S. (2010), Modelling Systems of Reservoirs Using Structured Markov Chains, Journal of Water Management, Institution of Civil Engineers UK, DOI:10.1680/wama.900053

Zakaria, R., Metcalfe, A.V., Howlett, P., Boland, J., Piantadosi, J. (2010) Using the skew-t copula to model bivariate rainfall distribution, ANZIAM J. 51, pp. C231-C246.

Wadhawan, I.B., Pudney, P.J., Howlett, P.G., Piantadosi, J. (2010) Scheduling trains with cross entropy optimisation, ANZIAM J., 51, pp. C332-C346.

Thomas, P., Howlett, P.G. and Piantadosi, J. (2010) Investigating the Optimal Management of the Helps Road Drain Urban Stormwater Harvesting System within the City of Salisbury, European Water, Issue 29 (2010, available online at http://www.ewra.net/ew/issue_29.htm).

Zakaria, R., Boland, J., Piantadosi, J., Howlett, P. Spatial rainfall modelling using the sum of four correlated Gamma variables, In Proceeding ICECS: 2010 The 3rd International Conference on Environmental and Computer Science, Kunming, China, 17-19 October, 2010.

Piantadosi, J. and Howlett, P.G. (2009) Analysis of a simple control policy for stormwater management in two connected dams, Optimization; Structure and Applications, C.E.M. Pearce and E. Hunt (Eds.), Springer Optimization and its Applications, New York, 32, 273-306.

Howlett P. and Piantadosi J. (2009) An Application of the Pump-to-fill policy for management of urban stormwater, Environmental Modeling and Assessment 14(2), 195-207.

Piantadosi, J., Boland, J.W. and Howlett, P.G. (2009) Simulation of rainfall totals on various time scales – Daily, Monthly and Yearly. Environmental Modeling and Assessment, 14(4), 431-438.

Piantadosi, J., Metcalfe, A.V. and Howlett, P.G. (2008) Stochastic Dynamic Programming (SDP) with Conditional Value-at-Risk (CVaR) criterion for management of stormwater. Journal of Hydrology, 348(3-4), 302-329.

Piantadosi, J., Howlett, P.G. and Boland, J.W. (2007) Matching the grade correlation coefficient using a copula with maximum disorder. Journal of Industrial and Management Optimization, 3(2), 305–312.

Pearce, C.E.M., Piantadosi, J. and Howlett, P.G. (2007) On an optimal control policy for stormwater management in two connected dams. Journal of Industrial and Management Optimization, 3(2), 313–320.

Howlett, P.G. and Piantadosi, J. (2007) A note on Conditional Value at Risk (CVaR). Optimization – A Journal of Mathematical Programming and Operations Research, 56(5-6), 629-632.

Howlett, P.G., Piantadosi, J. and Thomas, P. (2007) Management of water storage in two connected dams. Journal of Industrial and Management Optimization, 3(2), 279–292.

Piantadosi, J., Boland, J.W. and Howlett, P.G. (2007) Generating Synthetic Rainfall on Various Timescales - Daily, Monthly and Yearly. In Oxley, L. and Kulasiri, D. (eds) MODSIM 2007 International Congress on Modelling and Simulation. Modelling and Simulation Society of Australia and New Zealand, December 2007, pp. 2910-2916. ISBN: 978-0-9758400-4-7.

Webby, R.B., Adamson, P.T., Boland, J.W., Howlett, P.G., Metcalfe, A.V. and Piantadosi, J. (2007) The Mekong - Applications of Value at Risk (VaR) and Conditional Value at Risk (CVaR) simulation to the benefits, costs and consequences of water resources development in a large river basin, Ecological Modelling, 201(1), 89–96.

Piantadosi, J., Howlett, P. G. and Boland, J. (2006) Generating daily rainfall, In proceedings IASTED International Conference on Applied Simulation and Modelling, M. H. Hamza (Ed.), ISBN:0-88986-559-0, 131-137, Rhodes, Greece, June 2006.

Howlett, P.G., Piantadosi, J. and Pearce, C.E.M. (2005) Analysis of a practical control policy for water storage in two connected dams. Continuous optimisation; current trends and modern applications, V. Jeyakumar, A. Rubinov (Eds.), Springer-Verlag, New York, 99, 433-448.

Howlett, P.G. and Piantadosi, J. (2005) An upper bound for the covariance when the marginal distributions are known. In Proceedings Second Industrial Optimisation Symposium, Curtin University of Technology, Perth, Australia, September, 2005

Webby, R.B., Adamson, P.T., Boland, J.W., Howlett, P.G., Metcalfe, A.V. and Piantadosi, J. (2005), The Mekong - Application of Value at Risk (VaR) and Conditional Value of Risk (CVaR) simulation to the benefits, cost and consequences of water resources development in a large river basin, MODSIM05, International Congress on Modelling and Simulation, Melbourne, 12-15 Dec., 2005, 2109-2115.

Piantadosi, J., Optimal Policies for Storage of Urban Stormwater. PhD Thesis, University of South Australia, 2004, 232 pages.

Piantadosi, J., Howlett, P.G. and Boland, J.W. (2003) Analysis of simple control policy for stormwater managment in two connected dams at Mawson Lakes, Ecosystems and Sustainable Development IV, 2, 1195-1204, WIT Press, Siena, Italy, June 2003.

Piantadosi, J., Howlett, P.G. and Boland, J.W. (2002) Stormwater management in a sequence of interconnected storage systems, In Proceedings, Ninth International Conference on Urban Drainage, Global solutions for urban drainage CD-ROM, E.W. Strecker and W.C. Huber (Eds.), IBSN:0-7844064-4-8, doi:10.1061/40644(2002)44, Portland Oregon USA, September 2002.

## Expertise for Media Contact

I am able to provide media comment in the following areas of expertise:

**Discipline: **Mathematics

- Water Management

## Research Degree Supervisor

I am currently supervising postgraduate students in mathematical modelling for water management systems; implementing new solution algorithms for stochastic dynamic programming models using techniques including matrix analytic methods, decomposition and aggregation methods; developing a Scalar Vector Graphics (SVG) simulation tool for optimal management and risk assessment in urban stormwater harvesting and utilisation schemes; comparing new stochastic rainfall models (SRMs) to existing SRMs in the context of water cycle management; and using Conditional Value-at-Risk (CVaR) to assess the cost of each water management scheme.Completed:

2011, Dr Roslinazairimah Zakaria, Mathematical modelling of rainfall in the Murray-Darling Basin.

Principal supervisors: John Boland and Phil Howlett, Associate supervisor: Julia Piantadosi.

2013, Dr Indu Bala Wadhawan, Pickup and Delivery with queueing. Under examination. Principal supervisor: Peter Pudney, Associate supervisor: Julia Piantadosi.

2014, Dr Christian Reynolds, The quantification and modelling of Australian food waste with Input Output analysis

Principal supervisor: John Boland, Associate supervisor: Julia Piantadosi.

In progress:

Ms Paraskevi Thomas, A graphical simulation package for optimal management and risk assessment in urban stormwater harvesting systems.

Principal supervisor: Phil Howlett, Co-supervisor: Julia Piantadosi.

Ms Sara Browning, Stochastic dynamic programming and conditional value-at-risk to evaluate water management policies.

Principal supervisor: Julia Piantadosi, Associate supervisor: John Boland.

Ms Sherin Ahamed, Future Climate: Modelling point rainfall of South Australia for different seasons.

Principal supervisor: John Boland, Associate supervisors: Julia Piantadosi and Manju Agrawal.

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