We present a new indexing method named ZINC (for Z-order Indexing with Nested Code) that supports efficient skyline computation for data with both totally and partially ordered attribute domains. The key innovation in ZINC is based on combining the strengths of the ZB-tree, which is the state-of-the-art index method for computing skylines involving totally ordered domains, with a novel, nested ...

The use of simulations has become increasingly frequent in the study and the performance evaluation of network systems. The simulation environment deeply influences the behaviour of results, so a model that simulates a realistic movement of the nodes is necessary for the study of wireless networks. Simple mobility models do not provide realistic scenarios. Often movements are completely random,...

The simTD (Safe and Intelligent Mobility: Test Field Germany) research project is another step towards bringing Car-to-X technology to marketability. One of its envisioned applications is a Traffic Information System (TIS) based on selfgenerated maps for vehicles not equipped with digital maps. To assure reliable operation, the function itself, its performance and the effect of its input parame...

This article explores the relationship between political and symbolic borders in the Gulf of Trieste. The author inquires into the persistence of understandings that map peoples onto specific territories and terrains, such as the stereotypical association of Italians with the coast and Slavic peoples (Slovenes and Croats) with the rural interior. Focusing on representations of maritime culture ...

For ground truth free map evaluation, map intrinsic properties have to be utilized in order to define a measure of quality. This paper suggests the property of map consistency, based on the similarity of different model elements describing a single feature in the environment. The evaluation algorithm is tailored for segment based maps. Respecting the segment representation, it inherits the prop...

When cities develop a rail network – above or under ground – this is usually accompanied by the publication of a metro map. The map is an essential adjunct, produced and provided to commuters to facilitate informed use of the system. It is generally agreed that the exemplar metro map is that of the London Underground, designed by Harry Beck, in 1931. Beck’s design principles have been copied, m...

Objective: The aim of this study is to provide a management plan for the Sykan watershed of Darre shahr city located in Ilam province using GIS in land use planning. Methods: For land using of Sykan watershed of Ilam province with about 9 hectares area, map of classes, elevation, percent slope, geographical aspects, soil characteristics, vegetation density and the final map units were combined ...

This study used quantifying factors affecting desertification based on the Iranian model of desertification potentialassessment (IMDPA) to assess the current status of desertification in Bordekhun region, Iran. Bordekhun region has anarea of 214.11 km2 and is located near the city of Daiyer in Boushehr province. First, a working unit map of the regionwas selected as the basic map for evaluation...

organizations’ success depends on planning. today, this task iscarried out through a multi-stage process such as defining outlook, devisingstrategies, implementation, performance evaluation, and data analysis andplanning for improvement. on one hand, defining and devising goals, and onthe other hand, implementation and performance evaluation have become themain challenges of top managements. fo...