The rank-width is a graph parameter related in terms of fixed functions to cliquewidth but more tractable. Clique-width has nice algorithmic properties, but no good “minor” relation is known analogous to graph minor embedding for tree-width. In this paper, we discuss the vertex-minor relation of graphs and its connection with rank-width. We prove a relationship between vertex-minors of bipartit...

..........................................................................................iii Table of contents.................................................................................iv List of Figures.................................................................................viii List of Tables......................................................................................x...

The NTP network is an important part of the Internet’s infrastructure, and one of the most challenging times for the NTP network is around leap seconds. In this paper we look at the behaviour of public servers in the NTP network in 2005 and over the period from 2008 to present, focusing on leap seconds. We review the evolution of the NTP reference implementation with respect to leap seconds and...

The recent introduction of depth cameras like Leap Motion Controller allows researchers to exploit the depth information to recognize hand gesture more robustly. This paper proposes a novel hand gesture recognition system with Leap Motion Controller. A series of features are extracted from Leap Motion tracking data, we feed these features along with HOG feature extracted from sensor images into...

In recent years, wireless sensor networks have been adopted in various areas of daily life, and this exposes the network data and hardware to a number of security threats. Many key management schemes have been proposed to secure the communications among nodes, for instance the popular LEAP+ protocol. This paper proposes an enhanced variant of the LEAP+ protocol that decreases the key setup time...

Teacher commitment to classroom model philosophy and burnout were explored in a sample of 53 teachers implementing three preschool models at high levels of fidelity for students with autism: Treatment and Education of Autistic and Related Communication Handicapped Children (TEACCH); Learning Experiences and Alternative Program for Preschoolers and Their Parents (LEAP); and high quality special ...

When using tabular value functions, the application of Reinforcement Learning (RL) algorithms to real-world problems may have prohibitive memory requirements and learning time. In this paper, we introduce LEAP (Learning Entities Adaptive Partitioning), a novel model-free learning algorithm in which the state space is decomposed into several overlapping partitions which are dynamically modified ...

UNLABELLED Developing a quantitative understanding of intracellular networks requires simulations and computational analyses. However, traditional differential equation modeling tools are often inadequate due to the stochasticity of intracellular reaction networks that can potentially influence the phenotypic characteristics. Unfortunately, stochastic simulations are computationally too intense...

concerns related to climate change and security of energy supply is pushing various countries to make strategic energy planning decisions. in this regard, energy system modelling is an appropriate method to find out the utilization of current declining non-renewable energy resources and other possible scenarios. consequently, it is available to consider various aspects of energy system decision...