In this paper we present the problem of designing a three level hub center network. In our network, the top level consists of a complete network where a direct link is between all central hubs.  The second and third levels consist of star networks that connect the hubs to central hubs and the demand nodes to hubs and thus to central hubs, respectively. We model this problem in an incomplete net...

In this paper we present the growing hierarchical self-organizing map . This dynamically growing neural network model evolves into a hierarchical structure according to the requirements of the input data during an unsupervised training process. We demonstrate the benefits of this novel neural network model by organizing a real-world document collection according to their similarities.

In this paper, we present the results of a longitudinal study for the evolution follow-up in writing among typical pupils in primary education. We propose a method aimed at discovering groups of pupils sharing the same handwriting strategies along their primary education. From the on-line acquisition of writing and drawing tests, writing strategies are modeled by means of a bayesian network. Ex...

We present four eecient heuristics (one basic scheme and three of its variants) to predict the location of a mobile user in the cellular mobile environment. The proposed location management schemes assume a hierarchy of location areas, which might change dynamically with changing traac patterns. A method to compute this hierarchical tree is also proposed. Depending on the proole of the user mov...

Refine Match Hierarchical planning Select specialist Compose plan Propose Partial plan Hierarchical planning Determine applicability Decompose plan Propose plan Heuristic plans Refinement Applicability conditions Acquisition methods Plan structure Plan structure Hypothesis validity Hypothesis taxonomy Network model Problem scenario Network model Figure 2. ExperNet agents’ local problem-solving ...

Abstract: ATM virtual path has recently been paying attention to the effective deployment of IP over ATM. The effective IP service provisioning depends fully on the reliability and optimality of ATM VP layer network because the relationship between IP and ATM VP networks is client and server. In order to guarantee the network survivability of ATM VP layer network and to provide the reliable IP ...

Recent research has shown that the navigability of tagging systems leaves much to be desired. In general, it was observed that tagging systems are not navigable if the resource lists of the tagging system are limited to a certain factor k. Hence, in this paper a novel resource list generation approach is introduced that addresses this issue. The proposed approach is based on a hierarchical netw...

Increases in incidents involving so-called confused persons have brought attention to the potential costs of recent changes to public mental health (PMH) services in the Netherlands. Decentralized under the (Community) Participation Act (2014), local governments must find resources to compensate for reduced central funding to such services or “innovate.” But innovation, even when pressure for c...

Tree-like hierarchical structure is one of the key features in many real complex systems. To investigate its properties, a deterministic tree-like hierarchical network model is proposed. Next, the static properties of the tree-like hierarchical networks are discussed. The simulation and theoretical results prove that the artificial tree-like networks conformably possess small-world and scalefre...