The informative value of analytic processes by geographical information systems depends on the accuracy, consistency and completeness of the gathered data fed into the system. By feeding Big Data into it, such requirements are hard to maintain, as the provenance, veracity, velocity, structural and semantic heterogeneities of the gathered spatiotemporal data have to be addressed. Exploitation an...

Information and Communication Technology (ICT) [1] is a generic term, which is being used for collecting, storing, editing and passing on information in various forms. Increasingly rapid advances in ICT will have profound impact on way teachers teach and how learners learn in near future. The development of new broadband communication services, convergence of telecommunication with computers, r...

Geographical information science can be defined as that branch of information science that deals with the geographical domain, or as the set of fundamental scientific questions raised by geographical information and the technologies that collect, manipulate and communicate it. Geographical information can reveal interesting patterns that point in some cases to causal mechanisms. The use of Glob...

introduction: health care classifications are essential tools for collecting and processing health-related information. they also provide a unified language for interdisciplinary communications. nursing data is important for extension of knowledge, evaluating the quality and effectiveness of nursing care, and supporting human resource planning. therefore, an integrated system for collecting, st...

Recent years have witnessed a burgeoning of applications of GIS which grant legitimacy to indigenous geographical knowledge as well as to ‘offi cial’ spatial data. By incorporating various forms of community participation these newer framings of Geographical Information Systems as ‘Participatory GIS’ (PGIS) offer a response to the critiques of GIS which were prevalent in the 1990s. This paper r...

As widespread deserts is located in west and southwest of Iran plateau, dust storms form due to west andsouthwest systems over Syria or Iraq as well as Arabian Peninsula. These systems severely affect west and southwestregions. Sometimes the fine dusts transmit to central, north east, and east regions. In this study for investigating dustysynoptical patterns, meteorological data at 5 synoptic s...

In recent years, enterprises and emergency response teams have started to use user-generated content to monitor crises, events and trends. Especially in critical situations, decision makers must, above all, quickly assess huge amounts of data. Effective geographical visualization and aggregation of collected data is an important prerequisite to enable decision makers to infer the impact of a de...

The paper illustrates the results of a correlation study focusing on linguistic variation in an Italian region, Tuscany. By exploiting a multi-level representation scheme of dialectal data, the study analyses attested patterns of phonetic and morpho-lexical variation with the aim of testing the degree of correlation between a) phonetic and morpho-lexical variation, and b) linguistic variation a...

Humans tend to interpret a temporal series of geographical spatial data in terms of geographical processes. They also often ascribe certain properties to processes (e.g. a process may be said to accelerate). Given a spatial region of observation, distinct properties may be observed in different subregions and at different times, which causes difficulties for humans to identify them. The concept...

Classiication is a fundamental operation for data analysis and pattern discovery in Geographical Information Systems. It consists of forming clusters from a large set of data values for presentation in choroplethic maps. Strategies based on a measure of diversity of the values within a class provide a quantitative measure of the quality of the classiication but nding the classes requires (n 3) ...