Deng proposed grey clustering analysis (GCA) in 1987. Later, Jin presented a new method in 1993, called grey relational clustering (GRC) method that combined grey relational analysis with clustering. However, the GRC method cannot use a tree diagram to make appropriate classification decisions without re-computation. This study thus attempts to combine GRC and hierarchical clustering analysis. ...

Abstract Researchers in science and engineering have a long tradition of collaboration, and increasingly carry out these collaborations across geographical distance. Similar trends exist in industry, where virtual teams are increasing in frequency. While we know that such dispersed collaborations are difficult, there is growing evidence of success. The physical and biological sciences have led ...

abstract: iran passed wide range of events over her controversies history. it has great special geopolitics position, natural resources and cultural values. iran is in asia and connects asia to europe. iran as relational bridge has an important role so that it could be an important center during first and second world war for enemies' forces in spite of explicit neuter declaration from ira...

In this position paper we discuss the role of geographical metaphors as tools for representing, organizing and accessing heterogeneous shared information, typical of the Web 2.0. Metaphors represent concepts and relations of a knowledge domain with symbols taken from another domain, usually simpler and more immediate to understand. The paper discusses issues related to the use of metaphorical c...

Ha'il community is an important community in the northern Saudi Arabia; has its own culture. The current study is recording the ethno-botanical uses of some plants in Ha'il region, reflecting how surrounding environment and the geographical position affecting this knowledge, and showing even similarities with other Bedouin cultures within other places in nearby countries that has similar or rel...

Understanding the environmental factors determining the distribution of species with different range sizes can provide valuable insights for evolutionary ecology and conservation biology in the face of expected climate change. However, little is known about what determines the variation in geographical and elevational ranges of alpine and subalpine plant species. Here, we examined the relations...

In wireless telephony networks, each cell is a geographical coverage area which can distribute frequency among cellular networks for different specific mobile network regions. Good cell and bad cell are used in the cellular network to identify the proper user position in a certain geographical area. The good cell is identified by assuming a maximum distance between latitude and longitude of two...

Several approaches can be identified in the domain of vehicular ad hoc networks (VANET). Internet Protocol version 6 (IPv6) networking and non-IP geographical networking can each fulfill a subset of the application requirements. In general, a combination of both techniques is proposed to meet all of the application requirements. In this case, packets of one VANET routing protocol are encapsulat...

using records and documents left by muslim geographers and historions, this article tries to rebuild the historical geography of zarang, now a buried islamic - iranian city and once the administrative center of the sistan region in southeastern iran. the aim of this reconstruction is to help archaeologists have access to the plan and approximate whereabouts of major facilities of the city befor...

This paper discusses the theoretical and methodological principles in process of regionalization analyzes criteria used during designation region as a category special importance geographical research. Methodological were applied differentiation Preševo Valley an individualized region. The is small South Serbia with very favorable position because it located central part Balkan Peninsula betwee...