Dr William Chivers

Lecturer

School of Design Communication and IT (Information Technology)

Career Summary

Biography

I am an early career researcher with a passion for both computer science and biology. After completing a degree in zoology in the 1970s I worked in the IT industry as a computer programmer and taught in secondary schools and NSW TAFE before returning to academia. In my research I now combine my two academic interests by exploring population dynamics in ecological systems through the use of computer models. In my PhD research I built two generalised and parsimonious models in the tradition of classical ecological modelling and applied these models to specific systems, including exclusive mammalian predator-prey systems and grazing herbivore systems. My research now includes further development of these models and the development of new models of specific systems in collaboration with practising ecologists. I have completed two higher degrees, both of which earned research awards: 1. PhD: (2010) Generalised, parsimonious, individual-based computer models of ecological systems. University of Newcastle, Australia. 2. Research masters: (1998) The effect of a constructivist teaching approach and the use of the computer programming language logo on the reconstruction of science beliefs of junior high school students. Research masters thesis, Charles Sturt University, Australia.

Research Expertise

I am an early-career researcher whose work involves the exploration of population dynamics in ecological systems using computer models. In my PhD research I built two generalised and parsimonious models in the tradition of classical ecological modelling and applied these models to specific systems, including exclusive mammalian predator-prey systems and grazing herbivore systems. My research now includes further development of these models and the development of new models of specific systems in collaboration with practising ecologists.

Teaching Expertise
I am a Lecturer in Applied IT - I have developed and delivered courses at tertiary level in agent-based modelling, computer programming (C, C++, Java, C#, VB, PHP, Python, Perl, Bullant, SQL, Logo, NetLogo), relational database, web development (HTML, CSS, LAMP, Django), system and network administration (FreeBSD, Linux, Netware and WinNT), systems analysis and design and computer architecture.

Administrative Expertise
- Acting head teacher in secondary schools and TAFE colleges, - Coordinator of university courses with up to 800 students - Member of various committees including Teaching and Learning, Student Recruitment and Student Retention. - School Academic Conduct Officer.

Collaborations
I am working with researchers at UoN, UTS and the University of New Mexico. 1. I am a CI on an ARC Discovery project proposal (DP140101733) with Assoc Prof Natalie Moltschaniwskyj, Prof Joseph Bidwell and Dr Andrea Griffin, all of UoN. 2. I am working with Prof William Gladstone of UTS and Dr Michael Fuller of the University of New Mexico, Albuquerque, on predator-prey population dynamics and the management of an endangered species, the Canadian lynx.


Qualifications

  • PhD, University of Newcastle
  • Diploma in Education, University of New England
  • Master of Education (Honours), Charles Sturt University
  • Bachelor of Science, University of New South Wales

Keywords

  • Agent-based modelling
  • Computer programming
  • Computer-based modeling
  • Database programming
  • Ecological modeling
  • Individual-based modeling
  • Information technology
  • Natural resource modeling
  • Open source software
  • Operating systems
  • Population dynamics
  • Predator-prey modeling

Fields of Research

CodeDescriptionPercentage
050209Natural Resource Management40
060207Population Ecology10
060299Ecology not elsewhere classified50

Professional Experience

UON Appointment

DatesTitleOrganisation / Department
1/01/2014 - LecturerUniversity of Newcastle
School of Design Communication and IT
Australia

Academic appointment

DatesTitleOrganisation / Department
1/02/1999 - 1/07/1999Lecturer in Education - part-timeUniversity of Western Sydney
School of Education
Australia
1/07/1990 - 1/12/2001Lecturer in IT - part-timeUniversity of Western Sydney
Information Technology
Australia

Membership

DatesTitleOrganisation / Department
10/06/2007 - Board memberThe Resource Modeling Association (USA)
United States
1/01/2004 - Membership - The Resource Modeling Association (USA)The Resource Modeling Association (USA)
United States

Professional appointment

DatesTitleOrganisation / Department
2/07/1978 - 1/06/1984Programmer/AnalystIBM Australia
Computing
Australia

Teaching appointment

DatesTitleOrganisation / Department
2/01/1994 - 1/02/2001Teacher of ITTAFE NSW
Information Technology
Australia
2/06/1984 - 1/12/1993Secondary TeacherNSW Department of Education
Science and Infomation Technology
Australia
2/06/1984 - 1/12/1993Secondary TeacherIndependant Schools
Science and Information Technology
Australia

Awards

Research Award

YearAward
2009Outstanding Postgraduate (Research) Student Achievement
University of Newcastle
1999Award for Outstanding Educational Research
NSW Institute for Educational Research Inc
1998Outstanding Thesis Prize
Charles Sturt University
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Publications

For publications that are currently unpublished or in-press, details are shown in italics.


Book (1 outputs)

YearCitationAltmetricsLink
2001Ware P, Chivers WJ, Cheleski P, Information Processes and Technology, Jacaranda, Sydney (2001) [A1]

Journal article (10 outputs)

YearCitationAltmetricsLink
2014Chivers WJ, Gladstone W, Herbert RD, Fuller MM, 'Predator-prey systems depend on a prey refuge', Journal of Theoretical Biology, 360 271-278 (2014) [C1]

Models of near-exclusive predator-prey systems such as that of the Canadian lynx and snowshoe hare have included factors such as a second prey species, a Holling Type II predator response and climatic or seasonal effects to reproduce sub-sets of six signature patterns in the empirical data. We present an agent-based model which does not require the factors or constraints of previous models to reproduce all six patterns in persistent populations. Our parsimonious model represents a generalised predator and prey species with a small prey refuge. The lack of the constraints of previous models, considered to be important for those models, casts doubt on the current hypothesised mechanisms of exclusive predator-prey systems. The implication for management of the lynx, a protected species, is that maintenance of an heterogeneous environment offering natural refuge areas for the hare is the most important factor for the conservation of this species. © 2014 Elsevier Ltd.

DOI10.1016/j.jtbi.2014.07.016
2014Chivers WJ, Gladstone W, Herbert RD, 'Programmatic detection of spatial behaviour in an agent-based model.', Information Technology in Industry, 2 38-43 (2014) [C1]
2013Lynar TM, Simon, Herbert RD, Chivers WJ, 'Reducing energy consumption in distributed computing through economic resource allocation', International Journal of Grid and Utility Computing, 4 231-241 (2013) [C1]
DOI10.1504/IJGUC.2013.057117
Co-authorsSimon
2011Lynar TM, Herbert RD, Simon, Chivers WJ, 'Resource allocation to conserve energy in distributed computing', International Journal of Grid and Utility Computing, 2 1-10 (2011) [C1]
DOI10.1504/IJGUC.2011.039976
CitationsScopus - 4
Co-authorsSimon
2010Lewis BG, Herbert RD, Chivers WJ, 'Modelling service levels in a call centre with an agent-based model', World Review of Science, Technology and Sustainable Development, 7 2-12 (2010) [C1]

Emergency services call centres rely on rapid call processing time to provide assistance to the community. The role of the call centre is to gain sufficient and accurate information in a timely manner to pass to the despatch operators to facilitate such a response. This paper is one step in building an agent-based model of a multi-queue emergency services call centre to generate practices that lead to better customer service level performance at reduced costs through more efficient resource allocation. In this paper, the authors model the operation of a single queue call centre and examine the service level performance parameter. The authors' results show the sensitivity of service level as call and agent parameters are varied and that different methods of calculating the service level can lead to differing results. Copyright © 2010 Inderscience Enterprises Ltd.

DOI10.1504/WRSTSD.2010.032339
2010Lynar TM, Simon, Herbert RD, Chivers WJ, 'Clustering obsolete computers to reduce e-waste', International Journal of Information Systems and Social Change, 1 1-10 (2010) [C1]
DOI10.4018/jissc.2010092901
Co-authorsSimon
2009Lynar TM, Herbert RD, Chivers WJ, 'Implementing an agent based auction model on a cluster of reused workstations', International Journal of Computer Applications in Technology, 34 230-234 (2009) [C1]

Agent based models are often computationally intensive. Historically, the size and scope of agent based models has been limited by a lack of accessible high performance computing equipment. Clustering techniques allow for the creation of high performance computing environments at a relatively low cost. The low cost of clustering can be further reduced by utilising discarded computer workstations. In this paper, the authors evaluate the implementation of an agent-based model on a cluster of reused workstations. The workstations are reused PCs in a Linux based cluster and the authors concentrate on a Java based clustering and grid solution JavaParty. An existing agent based auction model is used to demonstrate the difference in performance, before and after the implementation of the model on a cluster. The authors compare the performance of the cluster implemented agent based auction model with the existing auction model and compare their execution times. Copyright © 2009 Inderscience Enterprises Ltd.

DOI10.1504/IJCAT.2009.024071
CitationsScopus - 1
2008Chivers WJ, Gladstone W, Herbert RD, 'Spatial effects in an individual-based model of producer-herbivore interaction', Natural Resource Modeling, 21 72-92 (2008) [C1]
DOI10.1111/j.1939-7445.2008.00013.x
2007Chivers WJ, Herbert RD, Gladstone W, 'Within-generational and diversity-dependent effects in an individual-based model of predator-prey interaction', Natural Resource Modeling, 20 405-413 (2007) [C1]
DOI10.1111/j.1939-7445.2007.tb00213.x
2003Chivers WJ, Herbert RD, 'The Effects of Varying Parameter Values and Heterogeneity in an Individual-Based Model of Predator-Prey Interaction', Advances in Complex Systems, 6 441-456 (2003) [C1]
DOI10.1142/S0219525903000980
CitationsWeb of Science - 2
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Conference (22 outputs)

YearCitationAltmetricsLink
2010Lynar TM, Herbert RD, Simon, Chivers WJ, 'Reducing grid energy consumption through choice of resource allocation method', Proceedings: 24th IEEE International Parallel and Distributed Processing Symposium IPDPS 2010 and 24th IEEE International Parallel and Distributed Processing Symposium, Workshops and Phd Forum IPDPSW, Atlanta, GA (2010) [E1]
DOI10.1109/IPDPSW.2010.5470911
CitationsScopus - 1
Co-authorsSimon
2009Lynar TM, Herbert RD, Simon, Chivers WJ, 'Impact of node ranking on outcomes of grid resource allocation', WORLDCOMP 2009: The 2009 World Congress in Computer Science, Computer Engineering and Applied Computing, Las Vegas (2009) [E1]
Co-authorsSimon
2009Lynar TM, Herbert RD, Simon, Chivers WJ, 'Why decide: Is a user's estimation of job completion time useful in grid resource allocation?', 18th World IMACS Congress and MODSIM09 International Congress on Modelling and Simulation: Proceedings, Cairns, QLD (2009) [E1]
CitationsScopus - 2
Co-authorsSimon
2009Lynar TM, Herbert RD, Chivers WJ, Simon, 'A grid resource allocation mechanism for heterogeneous e-waste computers', Grid Computing and e-Research 2009: Proceedings of the Seventh Australasian Symposium on Grid Computing and e-Research (AusGrid 2009), Wellington, NZ (2009) [E1]
Co-authorsSimon
2008Chivers WJ, Fuller MM, Gladstone W, Herbert RD, 'Modeling sub-patterns in the snowshoe hare and Canadian lynx population cycles: An individual-based approach', The 2008 World Conference on Natural Resource Modeling, Warsaw, Poland (2008) [E3]
2008Lynar TM, Herbert RD, Chivers WJ, 'Implementing an agent based auction model on a cluster of re-used workstations', Proceedings of the 5th International Conference on Information Technology and Applications (ICITA 2008), Cairns, QLD (2008) [E1]
CitationsScopus - 1
2008Lewis BG, Herbert RD, Chivers WJ, 'Modelling service levels in a call centre with an agent-based model', Proceedings of the 5th International Conference on Information Technology and Applications (ICITA 2008), Cairns (2008) [E1]
2007Chivers WJ, Gladstone W, Herbert RD, 'Resource-driven herding-like behavior in a parsimonious individual-based model of producer-herbivore behavior', 2007 World Conference on Natural Resource Modeling. Abstracts, Cape Cod, Massachusetts (2007) [E3]
2007Lewis BG, Herbert RD, Chivers WJ, Summons PF, 'Agent-based simulation of a multi-queue emergency services call centre to evaluate resource allocation', MODSIM 2007 International Congress on Modelling and Simulation. Proceedings, Christchurch, New Zealand (2007) [E1]
CitationsScopus - 4
Co-authorsPeter Summons
2007Lynar TM, Herbert RD, Chivers WJ, 'Implementing an agent based auction model on a cluster of inexpensive', Modelling and Simulation Society of Australia and New Zealand. Proceedings, Christchurch, New Zealand (2007) [E1]
CitationsScopus - 1
2007Chivers WJ, Gladstone W, Herbert RD, 'Functional issues in modelling interspecies interaction in space', Research Higher Degree Students Congress 2005. Proceedings, Newcastle, NSW (2007) [E2]
2006Chivers WJ, Gladstone W, Herbert RD, 'An Analysis of the Causes of Population Stability in a Generalized Individual-Based Model of Predator-Prey Dynamics', Abstracts 2006 World Conference on Natural Resource Modeling, Bergen, Norway (2006) [E3]
2005Chivers WJ, Gladstone W, Herbert RD, 'Spatial effects in an individual-based model of the interaction of species at different trophic levels', MODSIM 2005, Melbourne (2005) [E1]
2005Chivers WJ, Gladstone W, Herbert RD, 'Spatial effects in an individual-based model of interspecies interaction', 2005 World Conference on Natural Resource Modeling, Arcata, California (2005) [E3]
2004Chivers WJ, Herbert RD, Gladstone W, 'Simulating Predator-Prey Population Dynamics with an Individual-Based Model', Proceedings of Research Higher Degree Students Congress June 2003, Newcastle (2004) [E2]
2004Chivers WJ, Herbert RD, Gladstone W, 'Individual variability and within-generational time scales in an individual-based model of predator-prey interaction', 2004 World Conference on Natural Resource Modelling, Melbourne, Australia (2004) [E2]
2004Chivers WJ, Herbert RD, Gladstone W, 'Population fluctuations and the importance of variation in a generalized individual-based model of predator-prey interaction', 89th Annual Meeting - Ecological Society of America, Portland, Oregon (2004) [E2]
2003Chivers WJ, Herbert RD, Gladstone W, 'Heterogeneous resource partitioning in a generalized individual-based model of multi-species interaction', Integrative Modelling of Biophysical, Social, and Economic Systems for Resource Management Solutions, Townsville, Australia (2003) [E1]
2002Chivers WJ, Herbert RD, 'Using Individuals to Model Predator-Prey Interaction', Using Individuals to Model Predator-Prey Interaction, Chuo University, Tokyo, Japan (2002) [E1]
2002Chivers WJ, McKinnon DH, 'Can learning a programming language affect metacognitive beliefs and science beliefs of junior high school students?', Can learning a programming language affect metacognitive beliefs and science beliefs of junior high school students?, Charles Sturt University, Bathurst, NSW 2795, Australia (2002) [E1]
2002Lewis BG, Herbert RD, Chivers WJ, 'The migration of a call centre to a contact centre', The migration of a call centre to a contact centre., Charles Sturt University, Bathurst, NSW 2795, Australia (2002) [E1]
2001Chivers WJ, Herbert RD, Keen S, 'Comparison of Individual-Based and Dynamic Modelling using Bullant', MODSIM 2001 International Congress on Modelling and Simulation. Proceedings Volume 3: Socioeconomic Systems, ANU, Canberra, Australia (2001) [E1]
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Grants and Funding

Summary

Number of grants9
Total funding$18,561

Click on a grant title below to expand the full details for that specific grant.


20081 grants / $1,700

2008 World Conference on Natural Resource Modeling, Warsaw, Poland, 15/6/2008 - 18/6/2008$1,700

Funding body: University of Newcastle

Funding bodyUniversity of Newcastle
Project TeamDoctor William Chivers
SchemeTravel Grant
RoleLead
Funding Start2008
Funding Finish2008
GNoG0189112
Type Of FundingInternal
CategoryINTE
UONY

20071 grants / $1,700

2007 World Conference on Natural Resource Modeling, Cape Cod, Massachusetts, USA, 19/6/2007 - 22/6/2007$1,700

Funding body: University of Newcastle

Funding bodyUniversity of Newcastle
Project TeamDoctor William Chivers
SchemeTravel Grant
RoleLead
Funding Start2007
Funding Finish2007
GNoG0187842
Type Of FundingInternal
CategoryINTE
UONY

20061 grants / $1,500

2006 World Conference on Natural Resource Modeling, 25-28 June 2006$1,500

Funding body: University of Newcastle

Funding bodyUniversity of Newcastle
Project TeamDoctor William Chivers
SchemeTravel Grant
RoleLead
Funding Start2006
Funding Finish2006
GNoG0186555
Type Of FundingInternal
CategoryINTE
UONY

20051 grants / $2,400

2005 World Conference on Natural Resource Modeling: Modeling for the Management of Complex Systems, 14-18 June 2005$2,400

Funding body: University of Newcastle

Funding bodyUniversity of Newcastle
Project TeamDoctor William Chivers
SchemeTravel Grant
RoleLead
Funding Start2005
Funding Finish2005
GNoG0185498
Type Of FundingInternal
CategoryINTE
UONY

20041 grants / $1,165

The 89th Annual Meeting of the Ecological Society of America, August 1-6, 2004$1,165

Funding body: University of Newcastle

Funding bodyUniversity of Newcastle
Project TeamDoctor William Chivers
SchemeTravel Grant
RoleLead
Funding Start2004
Funding Finish2004
GNoG0184200
Type Of FundingInternal
CategoryINTE
UONY

20032 grants / $8,488

Selection of test sites for the development and validation of a computer model to support the conservation and sustainable use of the of the sea urchin Centrostephanus rodgersii. $7,500

Funding body: University of Newcastle

Funding bodyUniversity of Newcastle
Project TeamDoctor William Chivers
SchemeEarly Career Researcher Grant
RoleLead
Funding Start2003
Funding Finish2003
GNoG0183546
Type Of FundingInternal
CategoryINTE
UONY

MODSIM2003:Integrative Modelling of Biophysical, Social and Economic Systems for REsource Management Solutions. Queensland Australia. 14-17 July 2003$988

Funding body: University of Newcastle

Funding bodyUniversity of Newcastle
Project TeamDoctor William Chivers
SchemeTravel Grant
RoleLead
Funding Start2003
Funding Finish2003
GNoG0183292
Type Of FundingInternal
CategoryINTE
UONY

20021 grants / $1,117

The 6th International Bi-Annual Conference on Complex Systems (CSO2), Chuo University, Tokyo, Japan 9 - 11 September, 2002$1,117

Funding body: University of Newcastle

Funding bodyUniversity of Newcastle
Project TeamDoctor William Chivers
SchemeTravel Grant
RoleLead
Funding Start2002
Funding Finish2002
GNoG0182245
Type Of FundingInternal
CategoryINTE
UONY

20011 grants / $491

MMANZ Conference / Canberra / 10-13 December 2001$491

Funding body: University of Newcastle

Funding bodyUniversity of Newcastle
Project TeamDoctor William Chivers
SchemeTravel Grant
RoleLead
Funding Start2001
Funding Finish2001
GNoG0181622
Type Of FundingInternal
CategoryINTE
UONY
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Research Supervision

Past Supervision

YearResearch Title / Program / Supervisor Type
2011A Parsimonious Agent-Based Emergency Call Centre Model
Information Technology, Faculty of Science and Information Technology
Co-Supervisor
2011Energy Conservation in Distributed Heterogeneous Computing Environments Using Economic Resource Allocation Mechanisms
Information Technology, Faculty of Science and Information Technology
Co-Supervisor
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Dr William Chivers

Position

Lecturer
School of Design Communication and IT
Faculty of Science and Information Technology

Focus area

Information Technology

Contact Details

Emailwilliam.chivers@newcastle.edu.au
Phone(02) 4349 4473
Fax(02) 4348 4145

Office

RoomSO:E1.45
BuildingScience Offices
LocationOurimbah
10 Chittaway Road
Ourimbah, NSW 2258
Australia
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