نتایج جستجو برای: geographical information system gis

تعداد نتایج: 3099281  

2005
P. BRADSHAW Jeffrey Sachs

Lecturer in Geographical Information Science (University of Nottingham: UK). Elected Chair of RGS-IBG Geographical Information Science Research Group; Associate Editor for Water Resources Research; Co-Editor of "GeoComputation" (Taylor & Francis, 2000 ) and "Neural Networks for Hydrological Modelling" (A.A. Balkema Publishers, 2004); Principal research interests include GIS and Neu ral Network ...

Journal: :History and Computing 2001
Ian N. Gregory Karen K. Kemp Ruth Mostern

Information about places is ubiquitous in the study of history, events occur, people live, and phenomena flourish in more or less identifiable locations. To a greater or lesser extent, all historians make use of geographical information. Potentially, there is a great potential for the use of Geographical Information Systems (GIS) in the discipline. However, GIS with origins in the earth science...

2008
M. H. Zheng X. Z. Feng Y. J. Song Z. Q. Huang

Geographical semantic representation, which aims at enhancing geospatial data model and facilitating information sharing and exchange, has been a hot topic in the realm of geographic information science. The research summarized here is to advance a geographical semantic representation framework to support geo-collaboration, focusing on how to take full advantage of Ontology and Web Services tec...

Aahmad-Ali Hanafi-Bojd Abdolreza Salahi-Moghaddam Alireza Khoshdel Mohammad-Mahdi Sedaghat

Background & Aims: Despite improvements in public health in Iran, cutaneous leishmaniasis has become a growing health issue. About 90% of cutaneous leishmaniasis cases occur in 8 countries including Iran. Kala-azar or visceral leishmaniasis, as an important parasitic disease, is endemic in some areas of Iran. Mapping the distribution of parasitic diseases and determining their relations to geog...

1996
David J. Grimshaw

This paper places geographical information systems (GZS) in the context of information systems generally and spe@cally illustrates how GIS may be classified by adapting an earlier taxonomy of information systems. The recent literature on information systems taxonomies is critically reviewed and an earlier taxonomy is tested and applied against several case study organisations who use GIS. It is...

Journal: :Leprosy review 2009
Mirjam I Bakker Pauline F D Scheelbeek Stella M Van Beers

Mapping of diseases has, since John Snow produced his famous cholera maps of London in 1854, been recognised as an essential tool in public health. A Geographical Information System (GIS) is more than mapping diseases: it manages, analyses and presents data that are linked to geographical locations. GIS enables creation of maps and can present data on national and regional level, but also on ve...

Journal: :Journal of epidemiology and community health 2000
C L Szwarcwald F I Bastos C Barcellos M F Pina M A Esteves

STUDY OBJECTIVES To establish the geographical relation of health conditions to socioeconomic status in the city of Rio de Janeiro, Brazil. DESIGN All reported deaths in the municipality of Rio de Janeiro, from 1987 to 1995, obtained from the Mortality Information System, were considered in the study. The 24 "administrative regions" that compose the city were used as the geographical units. A...

1998
Stan Openshaw Ian Turton James MacGill John Davy

Currently most of the proprietary GIS software systems lack sophisticated geographical analysis technology. Attempts over the last decade to persuade the system developers to add spatial analysis functionality has so far failed to have much visible impact. The traditional arguments seemingly still apply; viz. no strong market demand, fear of statistical complexity, lack of suitable GIS-able met...

2009
Hideaki Uchiyama Hideo Saito Myriam Servieres Guillaume Moreau

This paper presents a system for overlaying 3D GIS data information such as 3D buildings onto a 2D physical urban map. We propose a map recognition framework by analysis of distribution of local intersections in order to recognize the area of the physical map from a whole map. The retrieval of the geographical area described by the physical map is based on a hashing scheme, which is called LLAH...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید