The present study aims to design, develop, operate and evaluate a social media GIS (Geographical Information Systems) specially tailored to mash-up the information that local residents and governments provide to support information utilization from normal times to disaster outbreak times in order to promote disaster reduction. The conclusions of the present study are summarized in the following...

Component Based Software Engineering has one main sole motive of making the development process of software systems as easy as possible and to achieve this objective work needs to be done in previous systems to identify the concerns and limitations which can be overcome using this software engineering based approach. In this paper to support concept of component based system a domain is chosen ...

With the development of wireless communication technology and Web GIS, the technology and applications of mobile GIS are also developed. Based on lightweight mobile equipment, mobile GIS has the feature of flexibility and convenience, and is suitable for field operations, but it is also low memory, low CPU, has limited display range and storage. Taking the particularity in mobile GIS into accou...

Recently, the challenge of making geographic data available for analysis tasks also on the Internet has motivated the development of Web Geographic Information Systems (Web GIS). This term is referred to all the software products and services that allow geographic information to be accessed in different ways, by adopting Web technology. In this paper we describe a Web GIS developed for handling...

The World Wide Web is dynamic by nature: content is continuously added, deleted, or changed, which makes it challenging for Web crawlers to keep up-to-date with the current version of a Web page, all the more so since not all apparent changes are significant ones. We review major approaches to change detection in Web pages and extraction of temporal properties (especially, timestamps) of Web pa...

Current proposals for XML change detection use structural constraints to detect the changes and they ignore semantic constraints. Consequently, they may produce semantically incorrect changes. In this paper, we argue that the semantics of data is important for change detection. We present a semantic-conscious change detection technique for the hidden web data. In our approach we transform the u...

With the specifications defined through the Sensor Web Enablement initiative of the Open Geospatial Consortium, flexible integration of sensor data is becoming a reality. Challenges remain in the discovery of appropriate sensor information and in the real-time fusion of this information. This is important, in particular, in disaster management, where the flow of information is overwhelming and ...

This Web-based application allows to access views of End-Stage Renal Disease (ESRD) concerning the epidemiology of the demand and the supply of care. It is a Web-based Geographic Information System (Web-GIS), the SIGNe (Système d'Information Géographique pour la Néphrologie), designed for the Renal Epidemiology and Information Network (REIN) dedicated to ESRD. It is a visualisation and decision...

Recent advances in telecommunication and positioning systems, web and wireless architectures offer new perspectives and challenges to the management and visualization of mobile and geo-referenced objects. Amongst many research challenges still opened, the development of integrated sensorbased architectures necessary to the integration of mobile data has been often neglected. Real-time integrati...

Development of Geographic Information Systems (GIS) has reached a mature stage. One common option is web-based access. This feature makes it possible to use GIS as a tool for enhancing democracy, enabling transparency, and providing new services. Within the scope of our study we use the OECD model which provides a framework of categorizing different levels of interaction between citizens and go...