Multi-Agent Exploration under Sparsity Constraints

The operation of robotic systems on extraterrestrial missions involves long distance communications, which have large delays and make the control of any agent complicated. This problem becomes even more dominant if multiple robotic systems are used. One solution to this problem is to increase the autonomy of each robotic system such that each...

An Experimental Study of Two-level Schwarz Domain-Decomposition Preconditioners on GPUs

The generalized Dryja–Smith–Widlund (GDSW) preconditioner is a two-level overlapping Schwarz domain decomposition (DD) preconditioner that couples a classical one-level overlapping Schwarz preconditioner with an energy-minimizing coarse space. When used to accelerate the convergence rate of Krylov subspace iterative methods, the GDSW...

Advances in graph signal processing: Graph filtering and network identification

To the surprise of most of us, complexity in nature spawns from simplicity. No matter how simple a basic unit is, when many of them work together, the interactions among these units lead to complexity. This complexity is present in the spreading of diseases, where slightly different policies, or conditions,might lead to very different results;...

Privacy-Preserving Distributed Processing: Metrics, Bounds and Algorithms

Privacy-preserving distributed processing has recently attracted considerable attention. It aims to design solutions for conducting signal processing tasks over networks in a decentralized fashion without violating privacy. Many existing algorithms can be adopted to solve this problem such as differential privacy, secure multiparty...

The Smart Water Meter: A new method to monitor fouling issue

The drinking water distribution network is a sealed and pressurized system which attached numerous biofilm and microorganism due to the long-time operation. In a foreseeable future, Oasen will adopt reverse osmosis to treat drinking water and thus the nutrient (biodegradable compounds) in drinking water will be slight. In that case, biofilms...

Classical HPCN geared to application in industry

In The Netherlands as a result of a national HPCN initiative a Foundation HPCN was established in 1995. The purpose of this Foundation is to stimulate structural and lasting cooperation of universities, technological institutes and industry in economically relevant applications of HPCN. Projects have been selected and since the beginning of 1996...

A survey of the NARSIM C/S middleware

This document describes the Client/Server system architecture of NARSIM - the NLR Air Traffic control Research Simulator- focussing on the socalled middleware: the infrastructure that enables all the seperate parts of the simulator to interact with each other. To show the full scope of the architecture, first a somewhat abstract architecture...

Application of distributed artificial intelligence in complex modular critical applications

This report provides an overview of the emerging technology Distributed Artificial Intelligence, in particular in the area of Distributed Problem Solving (DPS). DPS refers to coarse-grained (task-level) problem decomposition resulting in a number of expert or knowledge-based systems, generally called agents of which each exhibits some...

Structured parallelization of a multi-block Navier-Stokes solver targeting distributed memory platforms

SOLEQS is a sequential three-dimensional multi-block multi-zone compressible Navier-Stokes solver, produced by NLR. In this paper is described how this large-scale application code in the order of 120,000 lines can be parallelized towards different computing platforms in a structured and manageable way. This paralellization is done step-wise,...

SPINE: Software platform for computer supported co-operative work in heterogenous computer and software environments

In development of High Performance Computing and Networking (HPCN) for simulation applications several targets have to be realized. It is recpiired to maximize not only computational speed but also to maximize applicability in engineering environments. For applications in which HPCN-based simulations are economically and technically necessary...

Multi-sensor data fusion in a distributed environment; architectural solutions

The human operator observing the real world is confronted with a huge amount of data from multiple sensors observing that world. Multi-sensor data fusion (MSDF) is one of the emerging fields in advanced information processing, concerned with fusing sensor data from these multiple sensors. Automated MSDF can help the operator by processing sensor...