Algorithmic skeletons are used as building-blocks to ease the task of parallel programming by abstracting the details of parallel implementation from the developer. Most existing libraries provide implementations of skeletons that are defined over flat data types such as lists or arrays. However, skeleton-based parallel programming is still very challenging as it requires intricate analysis of ...

Skeletons are well-suited to structure parallel programming. They allow the easy use of some well-known parallel programming paradigms to construct portable, efficient programs. Much research has been focused on the use of skeletons in functional programming languages, because they can be expressed elegantly as higher order functions. On the other hand, little attention has been paid to an elem...

Today, parallel programming is dominated by message passing libraries such as MPI. Algorithmic skeletons intend to simplify parallel programming by their expressive power. The idea is to offer typical parallel programming patterns as polymorphic higher-order functions which are efficiently implemented in parallel. Skeletons can be understood as a domain-specific language for parallel programmin...

Many algorithms suppress skeleton associated with boundary perturbation by preventing their formation or by costly branch pruning. This work proposes a novel concept of structural and textural skeletons. The former is associated with the general shape structure and the latter with boundary perturbations. These skeletons remain disconnected to facilitate gross shape matching without the need for...

The foramen tympanicum is an anatomical variation that is created in the tympanic plate of temporal bone during the first year of life. The tympanic plate grows and foramen tympanicum is gradually closed by about the fifth postnatal year. However, due to a defect in normal ossification, foramen tympanicum sporadically remains throughout life. The construction of a shopping center in Tabriz, nor...

Introduction: The straight skeleton of a polygon in 2D was first defined by Aichholzer et al. [2]. It is the geometric graph whose edges are the traces of vertices of shrinking mitered offset curves of the polygon, see Figure 1, left. Straight skeletons are a versatile tool in computational geometry and have found applications in diverse fields of industry and science. E.g., Tomoeda et al. use ...

Filamentous skeletons were liberated from isolated human erythrocyte membranes in Triton X-100, spread on fenestrated carbon films, negatively stained, and viewed intact and unfixed in the transmission electron microscope. Two forms of the skeleton were examined: (a) basic skeletons, stripped of accessory proteins with 1.5 M NaCl so that they contain predominantly polypeptide bands 1, 2, 4.1, a...

Algorithmic skeletons intend to simplify parallel programming by providing a higher level of abstraction compared to the usual message passing. Task and data parallel skeletons can be distinguished. In the present paper, we will consider several approaches to implement one of the most classical task parallel skeletons, namely the farm, and compare them w.r.t. scalability, overhead, potential bo...

When grasping an object, humans can place their fingers at several positions on its surface. The selection of these endpoints depends many factors, with two the most important being grasp stability and configuration. We put factors in conflict examine which is considered more important. Our results highlight that are not reluctant to adopt unusual configurations satisfy stability.

Skeletons are widely used shape descriptors which summarize the general form of binary objects. There exist numerous skeletonization techniques that produce various skeleton-like features for the same object. Despite of the fact, that some researchers have made efforts to compare skeletons and evaluate skeletonization algorithms, we propose a new similarity measure that is based on the concept ...