This paper proposes a key management scheme for MANET (Mobile Ad hoc NETworks) networks that uses asymmetric cryptography without requiring nodes to know the public keys of the other nodes and without requiring any kind of central server or certification authority. In addition, the paper presents a new method (“delayed verification”) to reduce the delays in route establishment for distance vect...

This paper describes a novel approach for the GPU-based computation of approximate 3D Euclidean distance transforms, i.e. distance fields with associated vector information to the closest object point. Our hierarchical method works on discrete voxel grids and uses a propagation technique, both on a single hierarchy level and between the levels. We assume a closed object, so that a signed distan...

Genome rearrangement is an important area in computational biology. There are three basic operations, reversal, translocation and transposition. Here we study the translocation operations. Multi-chromosomal genomes frequently evolve by translocation events that exchange genetic material between two chromosomes. We focus on the signed case, where the direction of each gene is known. The signed t...

Although the classical dividend discount model (DDM) is a wellknown and widely used model in evaluating the intrinsic price of common stock, the practical pattern of dividends, required rate of return or growth rate of dividend do not generally coincide with any of the model’s assumptions. It is just the opportunity to develop a fuzzy logic system that takes these vague parameters into account....

The action of digitally signing has several intrinsic weaknesses that introduce syntactic and semantic distance between a signer and a relying party. As a result, digitally signed documents cannot be trusted and thus be widely deployed in pervasive environments. We evaluate the syntactic robustness of digitally signed documents by exploiting one key quantitative measure (the structural informat...

Conflating/stitching 2.5-D raster digital surface models (DSMs) into a large one has been running practice in geoscience applications; however, conflating full-3-D mesh models, such as those from oblique photogrammetry, is extremely challenging. In this letter, we propose novel approach to address challenge by multiple photogrammetric single and seamless for high-resolution site modeling. Given...

Given a positive integer n, and partitions λ and μ of n, let Kλμ denote the Kostka number, which is the number of semistandard Young tableaux of shape λ and weight μ. Let J(λ) denote the number of μ such that Kλμ = 1. By applying a result of Berenshtein and Zelevinskii, we obtain a formula for J(λ) in terms of restricted partition functions, which is recursive in the number of distinct part siz...

This report briefly describes the development and applications of net-sign graph theory. The current work enunciates the graph (molecule) signature of nonalternant non-benzenoid hydrocarbons with odd member of rings (non-bipartite molecular graphs) based on chemical signed graph theory. Experimental evidences and Hückel spectrum reveal that structure possessing nonbonding molecular orbital (NBM...