نتایج جستجو برای: gis geographical information systems

تعداد نتایج: 2169905  

Journal: :Bulletin of the World Health Organization 1995
K E Mott I Nuttall P Desjeux P Cattand

The advent of new technology for geographical representation and spatial analysis of databases from different sectors offers a new approach to planning and managing the control of tropical diseases. This article reviews the geographical and intersectoral aspects of the epidemiology and control of African trypanosomiasis, cutaneous and visceral leishmaniasis, Chagas disease, schistosomiasis, and...

2002
Shahram Rahimi Maria Cobb Marcin Paprzycki Frederick E. Petry

In this paper, we apply software agent technology paradigm to a well-known problem of Geographical Information Systems (GIS) known as conflation. Conflation is the complex process of recognizing and removing inconsistencies in geographical feature datasets that are stored in multiple databases. Specifically, we show how the technological advantages of an agent system can be combined with expert...

2014
T. Aruna Sri

Spatial Database is a collection of spatially referenced data that acts as a model of reality. Geographical Information System includes spatial data which is either in raster or vector form and data derived from remote sensors are increasingly utilized as source for GIS. Spatial data is the core part of the Geographical Information System. Data mining techniques are studied to discover knowledg...

1993
Nabil I. Hachem Michael A. Gennert Matthew O. Ward

The Gaea system is a spatio-temporal database management system under development at Worcester Polytechnic Institute. Gaea is intended to provide advanced data management and analysis to geographical information systems (GIS) for global change studies. We present the objectives and long-term vision of the Gaea project, describe the Gaea system architecture and discuss the current state of devel...

Journal: :International journal of hygiene and environmental health 2002
Thomas Kistemann Friederike Dangendorf Jürgen Schweikart

At first glance, the domain of health is no typical area to applicate Geographical Information Systems (GIS). Nevertheless, the recent development clearly shows that also within the domains of environmental health, disease ecology and public health GIS have become an indispensable tool for processing, analysing and visualising spatial data. In the field of geographical epidemiology, GIS are use...

2013
Juan Eugenio Hernández-Ávila Mario-Henry Rodríguez René Santos-Luna Veronica Sánchez-Castañeda Susana Román-Pérez Víctor Hugo Ríos-Salgado Jesús Alberto Salas-Sarmiento

Dengue fever incidence and its geographical distribution are increasing throughout the world. Quality and timely information is essential for its prevention and control. A web based, geographically enabled, dengue integral surveillance system (Dengue-GIS) was developed for the nation-wide collection, integration, analysis and reporting of geo-referenced epidemiologic, entomologic, and control i...

2017
Volodymyr Malakhov Volodymyr Zavialkin Oleksandra Tarasyuk Valentyna Smolnytska

Introduction Technology that combines traditional manipulations with databases and complete visualization of geographic (spatial) analysis employing maps has been developed in order to explore the possibilities for Geographical Information Systems (GIS) to be used in sanitary and epidemiological surveillance system based on the analysis of morbidity and identification of influence of hazardous ...

2004
Florin Leon Ioan Şova Dan Gâlea

A geographical information system (GIS) is a framework capable to assemble, keep, process and display specific information, identified by geographical location, which can combines layers of information to give the user a better understanding about that location. Intelligent agents prove to be a useful tool for data mining in geographical distributed knowledge bases. In this paper we present a m...

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