Research team

Internet Data Lab (IDLab)

Expertise

The team "modeling and simulation of complex systems" of the MOASIC research group has expertise on numeric, high-performace simulation. These simulations use parallel and distributed computing and programming techniques.

Hard Real-time scheduling on virtualized embedded multi-core systems. 01/01/2014 - 31/12/2017

Abstract

The purpose of this research is transferring the virtualization technique form general purpose systems to embedded systems, together with the multi-core technology on embedded systems makes it very interesting. Virtualization makes it possible to execute multiple software components on the same hardware, in an isolated and secure way. An important characteristic of embedded systems is the hard real-time behavior. We must continue to insure this behavior when we apply the virtualization on embedded multi-core systems.

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Construction of complex system models: use of variable selection and surrogate models. 01/01/2012 - 31/12/2015

Abstract

This project represents a research agreement between the UA and on the onther hand IWT. UA provides IWT research results mentioned in the title of the project under the conditions as stipulated in this contract.

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Developing and optimizing stochastic individual-based infectious disease simulation models by parallel multicore computing techniques. 01/07/2011 - 30/06/2015

Abstract

In infectious disease epidemiology, one is strongly interested in predicting the evolution of a newly emerging pathogen or in monitoring the effects of targeted or universal intervention programs on infectious disease spread in a human population. For many of these research questions such as at the initial phase of a pandemic, 'chance' ("stochasticity") and heterogeneity in risks are key determinants on whether or not the infection will spread or mitigation strategies would be effective and cost-effective. Therefore, stochastic individual-based infectious disease models provide a valuable alternative to the hitherto widely applied deterministic compartmental models. Because of the computational complexity associated with the use of individual-based models in large populations, efficient programming techniques need to be developed and implemented to allow uncertainty analysis and meaningful calibration procedures. The central research questions of this project are fourfold: (1) Which is the most computationally efficient way to simulate an emerging infectious disease epidemic by means of a stochastic individual-based model? (2) Which is the most efficient way to conduct uncertainty analysis and calibration procedures in a stochastic individual-based model applied to pandemic influenza? (3) Which are the main factors that would influence the spread of pandemic influenza in Flanders? (4) Given key characteristics of pandemic influenza (scenarios defined in relation to the basic reproduction number, serial interval and morbidity and mortality in various groups of the population), which prevention and control measures are most effective and most cost-effective to mitigate their spread in Flanders? Initially, the model will be applied to Flanders but generic efficient programming is crucial to enable efficient application to other regions in the world and other emerging pathogens.

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    A Systems Biology Approach of Leaf Morphogenesis. 01/01/2011 - 31/12/2014

    Abstract

    Developmental processes involve a complex network of interactions between multiple regulatory processes that traditionally are studied separately. We propose a systems biology approach, whereby experimental biologists closely interact with mathematical modellers, to unravel the functional relationships between auxin signalling, cell division and expansion and whole leaf morphogenesis.

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    • Integrated Molecular Plant Physiology Research (IMPRES)

    Economic and network aware grid resource management. 01/10/2010 - 30/09/2012

    Abstract

    The introduction of economic principles in Grid computing, Grid Economics, has two separate meanings. On the one hand the use of economically inspired principles to develop effective forms of resource management, and on the other hand to enable supplying resources and services as an economic activity. The fact that a substantial number of Grid applications is very data intensive has led to the research and propositions of scheduling algorithms that take into account the effects of data transport, so called network aware scheduling. An approach like this can both increase efficiency of computational as well as network resources and decrease responsetimes for jobs. In this project, we aim to combine Grid economics and network aware scheduling. The objective is the design of algorithms and protocols that allow the co-allocation of network and computational resources when using a grid resource management system based on economic markets. With regards to co-allocation, already a lot of work has been done. On a more limited scale research is being done on the use of market mechanisms for the allocation of network paths. The combination of a market and co-allocation of network and computational resources has not been explored before however. This combination leads to new possibilities when creating allocations and schedules. It creates a more relevant description of the value a user associates with a certain allocation. Because of this, economic and network aware scheduling will be a unique contribution to the domain of Grid economics. This project also fits nicely into the current research being done in the CoMP group into different market mechanisms and their applicability in economic scheduling of computational resources in grids.

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    Research and development of a cloud enabled globally applicable digital signature Software Development Kit. 01/10/2010 - 30/09/2011

    Abstract

    The project includes the development of a generally applicable Software Development Kit (SDK) for the integration of digital signatures. This SDK is composed of multiple components as there are a client signing applet, a server verification component and plug in components. The SDK will serve as a basis to offer through a spin-off of the University Antwerp the following services: on line document signing, strong authentication, on line contract negotiations and smart card systems.

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    Flanders High Performance Computing Lab. 01/07/2010 - 31/12/2015

    Abstract

    This project represents a research agreement between the UA and on the onther hand IWT. UA provides IWT research results mentioned in the title of the project under the conditions as stipulated in this contract.

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    A 3-D simulation model of leaf growth in Arabidopsis thaliana. 01/07/2009 - 30/06/2013

    Abstract

    The aim of the project is to develop a 3-D mathematic simulation model of inter-actions at the molecular, cellular and organ level during leaf growth in Arabidopsis thaliana. We will start from an existing 2-D model of vascular development that was build in the previous research group of the Promotor. This model will be extended to include multiple cell layers and modules for cell division and expansion.

    Researcher(s)

    Research team(s)

    • Integrated Molecular Plant Physiology Research (IMPRES)

    Economic and network aware grid resource management. 01/10/2008 - 30/09/2010

    Abstract

    The introduction of economic principles in Grid computing, Grid Economics, has two separate meanings. On the one hand the use of economically inspired principles to develop effective forms of resource management, and on the other hand to enable supplying resources and services as an economic activity. The fact that a substantial number of Grid applications is very data intensive has led to the research and propositions of scheduling algorithms that take into account the effects of data transport, so called network aware scheduling. An approach like this can both increase efficiency of computational as well as network resources and decrease responsetimes for jobs. In this project, we aim to combine Grid economics and network aware scheduling. The objective is the design of algorithms and protocols that allow the co-allocation of network and computational resources when using a grid resource management system based on economic markets. With regards to co-allocation, already a lot of work has been done. On a more limited scale research is being done on the use of market mechanisms for the allocation of network paths. The combination of a market and co-allocation of network and computational resources has not been explored before however. This combination leads to new possibilities when creating allocations and schedules. It creates a more relevant description of the value a user associates with a certain allocation. Because of this, economic and network aware scheduling will be a unique contribution to the domain of Grid economics. This project also fits nicely into the current research being done in the CoMP group into different market mechanisms and their applicability in economic scheduling of computational resources in grids.

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    Scattering and reaction calculations in microscopic many-cluster models for light nuclei with exterior complex scaling and interative methods. 01/01/2008 - 31/12/2011

    Abstract

    The main aim of this project is to introduce new computational tools, based on the External Complex Scaling methodology developed in atomic and molecular physics, for microscopic scattering and reaction calculations in cluster models for light nuclei.

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    Application-aware scheduling and metamodelling of parameterized computer experiments. 01/10/2007 - 30/09/2009

    Abstract

    Parameterized computer experiments and simulations become more and more important in the design of complex systems. The main goal of this project is to improve the current, hard-to-handle and hard to configure adaptive surrogate modelling techniques, approaching the problem from a theoretical as well as a practical (computational) standpoint. This will result in a generic, widely applicable modelling algorithm that configures and adapts itself as good as possible to the problem at hand, instead of relying on input from the user. A framework will be investigated and designed that will utilize this algorithm to automatically generate compact, scalable surrogate models for complex, dynamic systems, based on a limited amount of intelligently chosen sample points.

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    Economic and network aware grid resource management. 01/10/2007 - 30/09/2008

    Abstract

    The introduction of economic principles in Grid computing, Grid Economics, has two separate meanings. On the one hand the use of economically inspired principles to develop effective forms of resource management, and on the other hand to enable supplying resources and services as an economic activity. The fact that a substantial number of Grid applications is very data intensive has led to the research and propositions of scheduling algorithms that take into account the effects of data transport, so called network aware scheduling. An approach like this can both increase efficiency of computational as well as network resources and decrease responsetimes for jobs. In this project, we aim to combine Grid economics and network aware scheduling. The objective is the design of algorithms and protocols that allow the co-allocation of network and computational resources when using a grid resource management system based on economic markets. With regards to co-allocation, already a lot of work has been done. On a more limited scale research is being done on the use of market mechanisms for the allocation of network paths. The combination of a market and co-allocation of network and computational resources has not been explored before however. This combination leads to new possibilities when creating allocations and schedules. It creates a more relevant description of the value a user associates with a certain allocation. Because of this, economic and network aware scheduling will be a unique contribution to the domain of Grid economics. This project also fits nicely into the current research being done in the CoMP group into different market mechanisms and their applicability in economic scheduling of computational resources in grids.

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    3D rendering on the BEgrid. 01/01/2007 - 31/12/2008

    Abstract

    In this project we investigate the optimization on a Grid platform of the rendering process for the three-dimensional animations. We will use the BEgrid for actual development and deployement. We will perform a thorough analysis of the gridenablement of the rendering application. We will also consider in detail which factors determine the performance gains resulting from the distribution of the application onto the grid platform.

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    Dynamical polarization in 2- and 3-cluster nuclear scattering. 01/01/2006 - 31/10/2006

    Abstract

    We plan to extend the microscopic model for the quantum analysis of scattering of nuclei with a large excess of protons or neutrons, to include dynamical polarization ¿ i.e. deformation of the nucleus during the scattering process. Application of this approach to two- and three-cluster reactions in light nuclei is key to for certain astrophysical applications.

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    Architectures and compilers for embedded systems. 01/01/2005 - 31/12/2009

    Abstract

    The aim of the ACES research network is to group research teams working on different aspects of future computing systems in Flanders and surrounding regions, to give visibility to our domain by yearly organizing a couple of international events with world-class experts in Flanders, and to stimulate collaboration between the different teams.

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    Passivity-enforced broadband macromodels for general microwave and RF structures. 01/01/2005 - 31/12/2006

    Abstract

    Guaranteed passive broadband circuit models that capture the complex input-output behavior of general multiport passive linear structures are the holy grail in microwave and RF modeling. The macromodels must be compact, fast, numerically stable, physics-based (i.e. causal and passive), and applicable in time domain as well as in frequency domain simulations. The goal of this research project is to build physics-based, guaranteed passive rational (pole/zero) broadband circuit models, starting from existing approximated models, whose passivity is not guaranteed.

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    Developping a Flemish Grid Infrastucture. 01/05/2004 - 30/04/2008

    Abstract

    This project fits in an initiative by the Flemish Government aimed at developing a pilot Grid infrastructure in Flanders. This infrastructure must allow Flemish researchers to gain experience working with Grid technologies, to cooperate in European Grid projects and gain access to the compute and storage capacity of international grid systems. Grid technologies create an enormous potential. They provide coordinated and integrated access to resources that are distributed on a wide area scale and are managed in a large numbers of administrative domains. Grid technologies will give rise to completely new approaches of scientific cooperation over the Internet, sometimes referred to as e-Science, based on virtual organizations that stand for worldwide collaborations. In this way, grid technologies will make it possible to tackle larger and more complex scientific problems.

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    Guest professorship Dr. Arina Sytcheva. 01/10/2003 - 30/09/2004

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    Diffraction and reaction calculations on light nuclei inside coupled multi cluster models. 01/01/2003 - 31/12/2005

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    Development of the mult-channel, multi-cluster J-Matrix Method. 01/05/2002 - 30/04/2004

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    01/01/2002 - 31/12/2004

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    The J-matrix mehtod for (non-relativistic) quantum scattering. 01/05/2000 - 30/04/2002

    Abstract

    The J-matrix method allows one to make (non-relativistic) quantum scattering calculations using matrix methods, through the generalized expansion of teh continuum wave functions in an L2 basis. In this research project we focus on the question of selecting such an L2 basis and the possible modifications to the method for some of those bases. In particular we will look at scattering in Coulombic systems.

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      Design and development of an active graphics model for the animation of the human body. 01/10/1998 - 30/09/2000

      Abstract

      The major goal of this ongoing research is to build a physics-based model of a human body driven by musculotendon forces instead of torque motors. A control strategy using neural networks that coordinate natural movement in a realistic and efficient way by stimulating individual muscles, is being developed.

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        Dynamics of many-particle systems applied to nuclei and molecules. 01/01/1998 - 31/12/2001

        Abstract

        This project aims at the analytical and computational development of formalisms to study the behavior of the dynamics of many-particle systems. Three important parts are distinguished in the project: (1) formulation and application of the Algebraic Method on many-cluster configurations in light nuclei, (2) study of the resonance behavior in coupled-channels scattering situations, e.g. with several many cluster configuarations, and (3) the time-dependent stusy of intra-molecular and intra-cluster dynamics.

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          Dominant elements in facial expressions: analysis in the context of visualisation and animation. 01/01/1998 - 31/12/1999

          Abstract

          Generation and animation of the human face is a key element in a range of applications, as well direct (robotphoto manipulations, reconstructive surgery) as indirect (human computer interfaces, computer supported cooperative work). As regards the aspect of facial shape, a face is localized and followed on the basis of video images and characteristic geometrical parameters are deduced. As regards the aspect of facial expression links are put between colour and discoloration on the one hand and values of expression on the other hand. It is the aim of the project to realise the link between both aspects.

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            01/10/1996 - 30/09/1998

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              Research of Virtual Reality interfaces for multimedial data-exploration. 01/05/1996 - 30/04/1998

              Abstract

              In the frame of this project research is carried out concerning Virtual Reality interfaces for data-exploration in multimedial archives. Some software thechnologies (Virtual Reality Modelling Language and Java) are taken through, analized and evaluated on their applicability.

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                01/01/1996 - 31/12/1997

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                  Object Oriented Numerics and the application on the Bayesian Stochastic Frontier Method. 01/05/1995 - 30/04/1997

                  Abstract

                  The project concerns interdisciplinary research with as purpose the application and extension of the Bayesian Stochastic Frontier Model (BSFM), as well as the design and application of a software packet that implements the BSFM on the basis of the Object-oriented analysis- and programme techniques.

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                    Foundations of object-oriented information systems 01/01/1994 - 31/12/1997

                    Abstract

                    The object-oriented programming paradigm and the related "direct-manipulation" approach for man-computer interfaces offer much possibilities for the development of new user-interface models for information systems. The project aims at studying these possibilities with as ultimate goal the development of an extensible, user-friendly graphical interface model for information systems.

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                      Scientific Visualisation of Large Datasets. 01/10/1992 - 31/10/1995

                      Abstract

                      Scientific Visualisation of Large Datasets, usually from Molecular calculations.

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                        Dynamics of many-particle systems applied to nuclei and molecules 01/01/1992 - 31/12/1997

                        Abstract

                        The dynamics of light nuclei and di-atoms is studied by developing and applying 1) a time-independent study of the continuum using the algebraic method and 2) a time-dependent propagation of wave packets based on a pseudo-spectral method.

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                          01/01/1992 - 31/12/1992

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