We explore the minimum energy configurations of repelling particles distributed over n possible locations forming a toric grid. We conjecture that the most energy-efficient way to distribute n/2 particles over this space is to place them in a checkerboard pattern. Numerical experiments validate this conjecture for reasonable choices of the repelling force. In the present paper, we prove this co...

We study the continuous evaluation of conjunctive triple pattern queries over RDF data stored in distributed hash tables. In a continuous query scenario network nodes subscribe with long-standing queries and receive answers whenever RDF triples satisfying their queries are published. We present two novel query processing algorithms for this scenario and analyze their properties formally. Our pe...

For several years, mobile multi-robot systems are a main focus in robotic research. The possibilities to carry out demanding algorithms in a networked robotic system grow as computational resources used by those robots become more and more powerful and inexpensive. One major question is how to distribute the necessary algorithms and tasks to the available computers so that all requirements are ...

Abstract Background Energy landscapes provide an approach to the mechanistic basis of spatial ecology and decision-making in animals. This is based on quantification variation energy costs movements through a given environment, as well how these vary time for different animal populations. Organisms diverse fish, mammals, birds will move areas landscape that result minimised maximised gain. Rece...