The Effect of Regional Socio-Economic Factor on Development of Heterogeneous Urban Contexts;Case Study: Bandar Abbas City

Heterogeneous urban development of Iran during current decades along with ineffectiveness of urban planning system and shortcoming of national development programs and land use planning have led to many problems of urbanism in Iran so that heterogeneous and old contexts can be named as one of the problems in this field. Urban decay is one of the serious and inevitable problems of urban management in all countries. This study has been conducted to analyze and assess the effect of regional factors on development of problematic urban contexts emphasizing on socio- economic indicators in Bandar Abbas City. Having urban macro-indicators at regional and country level, Bandar Abbas City faces various physical problems which problematic and old contexts are the most important of them that cover an area of 1033 hectares. Economic issues and heterogeneity within social contexts have expanded the mentioned problem in addition to physical problems. Methodology of this study has been analytical-descriptive, data collection method of documentary information has been gathered from relevant administrative organization such as Statistical Center of Iran, the Municipality and the Ministry of Housing and Urban Development, and survey data has been collected through 90 questionnaires. According to the obtained results of this study, it could be found that social, economic, political and managerial factors have had effects on formation of heterogeneous contexts and extensive migration during the current years has expanded problematic contexts of Bandar Abbas due to its specific regional conditions. Moreover, the obtained results of this study indicated that heterogeneous contexts had some features including fine-grained, inadequate access network, impervious, inferior materials and poor construction of buildings and lack of necessary infrastructure.

Positivism and Variation： Literary Communication and Propagation at Heterogeneous Cultural Context

The study of the international literary relations in comparative literature includes not only the positivistic relations of different nations and different literary systems, but also the relations of variation among different literatures when it comes to the cross-civilization heterogeneity. Therefore, the positivistic approach and that of variation in the study of international literary relations constitute the two indispensable pillars in this field.

Adopting Context Mediation in Information Integration to Resolve Semantic Heterogeneity in Distributed Environment

Ontology-based semantic information integration resolve the schema-level heterogeneity and part of data level heterogeneity between distributed data sources. But it is ubiquitous that schema semantics of information is identical while the interpretation of it varies with different context, and ontology-based semantic information integration can not resolve this context heterogeneity. By introducing context representation and context mediation to ontology based information integration, the attribute-level context heterogeneity can be detected and reconciled automatically, and hence a complete solution for semantic heterogeneity is formed. Through a concrete example, the context representation and the process in which the attribute-level context heterogeneity is reconciled during query processing are presented. This resolution can make up the deficiency of schema mapping based semantic information integration. With the architecture proposed in this paper the semantic heterogeneity solution is adaptive and extensive.