Technical Sessions – Monday July 11

HA-14 IFORS 2011 - Melbourne
Six year experience and results of introduction OR disciplines in Summer
School AACIMP (http://summerschool.ssa.org.ua/) will be in the scope of this
talk. Each year courses on optimization and other OR branches in form of
interactive lectures, workshops are conducted. Besides, they are accompanied
by presentations of current IFORS, EURO events. Collaboration between
Ukrainian scientific community and international one, growing interest to the
OR education, increasing number of Ukrainian participants in OR events are
among the positive effects for the Ukrainian OR-community.
3 - The User-centered Aspect of R&D
Catherine Decouttere, Katholieke Universiteit Leuven Campus
Kortrijk, Flanders InShape, E. Sabbelaan 51, B-8500, Kortrijk,
Belgium, catherine.decouttere@kuleuven-kortrijk.be, Nico
Vandaele
Research and development portfolio management is traditionally technologically
and financially dominated, with little or no attention for value based
performance. The latter is mainly due to the lack of quantified and reliable
data on the human aspects of product/service development: sustainability, usability,
ecology, ethics, product experience, perceived quality etc. We show
results from an industry review that these issues really matter, not in the least
if it comes to radical innovations (compared to incremental innovations). Using
real life examples we show that this seemingly impossible assessment is
practically possible to include sustainable, social and human centered issues.
4 - Shell Power: Managing the Giant Earthworms (Pheretima
elongata) With Melanoides Granifera to Save the
Ifugao Rice Terraces (IRT)
Nancy Ann Gonzales, Research & Health Sciences, Ifugao State
University, Ifugao State University, 3605, IFUGAO, Philippines,
napgonzales@yahoo.com
The Ifugao Rice Terraces, a World Heritage Site is in danger because of the
giant earthworm (Pheretima elongata). This study aims to test the effectiveness
of Melanoides granifera shell lime in controlling the giant earthworms. Field
evaluation and pilot testing were applied in the study. The two-factor — factorial
within a Randomized Complete Block Design (RCBD) was used. The data
were treated using Analysis of Variance and the Duncan Multiple Range Test
(DMRT). Mixtures of 50g shell lime:6L water and 100g shell lime:6L water
were found to controll giant earthworms.
� HA-14
Thursday, 9:00-10:30
Meeting Room 207
Continuous Optimization, Modelling and
Dynamics in Biology and Medicine I
Stream: Continuous and Non-Smooth Optimization
Invited session
Chair: Herman Mawengkang, Mathematics, The University of
Sumatera Utara, FMIPA USU, KAMPUS USU, 20155, Medan,
Indonesia, mawengkang@usu.ac.id
1 - Modeling Coordination Relationship in School Communities
using Markov-based Dynamic Influence Diagram
Azizah Hanim Nasution, Graduate School of Natural Resources
and Environment Management, University of Sumatera Utara,
Indonesia, nazizahhanim@yahoo.com, Retno Widhiastuti,
Herman Mawengkang, Hidayati Hidayati
Most of the environmental problems might be caused by human behavior.The
effective way to enhance environmental behavior is through education. The
communities involved in a school can be regarded as a multi agent system.
One approach to manage such relationships consists of using an explicit representation
of them, allowing each agent to choose its actions based on them.
In this paper we address an approach to represent coordination relationships
assuming that agents inhabit an uncertain condition. We use Markov-based
dynamic influence diagram to model the coordination relationships.
2 - A Projected Lagrangian Approach for a Class of Multistage
Stochastic Nonlinear Programs
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Ihda Hasbiyati, Mathematics, Universitas Riau/Graduate School
of Mathematics, University of Sumatera Utara,
Pekanbaru-Indonesia, Medan-Indonesia, Indonesia,
ihasbiyati@yahoo.com
Multi-stage stochastic programming problems arise in many practical situations.
By using scenario analysis technique, a decomposition strategy a for
solving a class of multi-stage stochastic nonlinear programs is proposed, which
generates the search direction by solving parallelly a set of quadratic programming
sub-problems with size much less than the original problem at each iteration.
Generalized reduced gradient methods can be introduced to derive
the estimates of the dual multiplier associated with the nonanticipativity constraints.
3 - On Solving Mixed-integer Non Linear Programming
Problems using Active Cinstraint Strategy
Hardi Tambunan, Universitas Quality/Graduate School of
Mathematics, University of Sumatera Utara, Indonesia,
harditambunan22@yahoo.com, Herman Mawengkang
The special nonlinear mathematical programming problem addressed in this
paper has a structure characterized by a subset of variables restricted to assume
discrete values, which are linear and seperable from the continuous variables.
The strategy of releasing nonbasic variables from their bounds, combined with
the "active constraint’ method, has been developed. This strategy is used to
force the appropriate non-integer basic variables to move to their neighborhood
integer points. Successful implementation of these algorithms was achieved on
various test problems.
4 - Modeling of Epidemic Transmission and Predicting the
Spread of Pathogenic Avian Flu Between Farms
Tertia Delia Nova, Environment Management, University of
Sumatera Utara, Jl. Ampera, Jl. Dr. Mansur, 20155, Medan,
Indonesia, nt.delia@yahoo.com, Herman Mawengkang
Avian flu is an epidemic caused by H5N1 viruses. The infuenza viruses occur
naturally among birds. The transmission mode of avian flu can occur due to
the spread from one farm to other farm of chickens. This paper addresses a
transmission model of avian flu taking into account the factors that affect the
epidemic transmission such as source of infection, social and natural factors.We
estimate key parameters determining the spread of highly transmissible animal
diseases between farms. We implement the model aimed at controlling such
transmission between chicken farms at Padang city, Indonesia.
� HA-15
Thursday, 9:00-10:30
Meeting Room 208
OR for Irregular Warfare
Stream: Military, Defense and Security Applications
Invited session
Chair: Marc West, DSTO, 13 Garden St, 2015, Sydney, Australia,
marc.west@dsto.defence.gov.au
1 - Analysis in Support of Counter Piracy Operations
Marc West, DSTO, 13 Garden St, 2015, Sydney, Australia,
marc.west@dsto.defence.gov.au, Bernard Kachoyan, Les
Hamilton
Somali piracy has increased dramatically in recent years. This paper describes
an analysis technique that could be used with Automatic Identification System
(AIS) data to help characterise merchant shipping traffic and traffic flows, and
spot anomalies. This paper also describes the use of simulated annealing to
allocate patrolling assets in a region where piracy may occur. This technique
allows for the incorporation of piracy risk in certain areas and the movement
of vessels. This style of data analysis is useful when planning future counterpiracy
operations.
2 - An Application of Morphological Analysis for Bioterrorism
Preparedness Scenario Planning
Tony Lau, Human Protection and Performance Division, DSTO,
506, Lorimer Street, 3207, Fishermans Bend, Victoria, Australia,
tony.lau@dsto.defence.gov.au, Wayne Hobbs
The 2001 Amerithrax incident highlighted the potential impact of biological
agents employed as weapons of terror. An issue in planning to meet the threat
of biological terrorism is the large range of potential actors, motives, agents and
delivery methods that could be considered. Scenario based planning has been
demonstrated as a useful tool in support of planning under uncertain conditions.
Using Morphological Analysis a problem space can be defined from which a
hierarchy of plausible scenarios and vignettes is identified. This provides a
basis for exploration of future strategies.