نتایج جستجو برای: محیط gis

تعداد نتایج: 107064  

2005
Kei SAITO Shinji CHIBA Michihiko SHINOZAKI

The purpose of this paper is to develop the GIS educational environment in training program using open-source GIS software. First, we have verified the substitutability of laboratory exercise materials at our university from commercial GIS to open-source GIS software. Next, we grasp the improvement situation of the free spatial data that are opened to the public by the government and present th...

2012
Jérémie Daniel Jean-Philippe Lauffenburger

This paper deals with a Speed Limit Assistant (SLA) performing the fusion of a Geographic Information System (GIS) and a vision system. The present strategy is based on multi-level data fusion using Evidence Theory. In a first step, the GIS reliability is estimated through GIS criteria related to the positioning, the localization and the digital map resolution. Contextual criteria also extracte...

2003
Joseph J. Kerski

Geographic information systems (GIS) technology and methods have transformed decision-making in society by bringing geographic analysis to the desktop computer. Although some educators consider GIS to a promising means for implementing reform, it has been adopted by less than 2% of American high schools. The reasons behind the interest in GIS, its slow implementation, and its effectiveness in t...

Journal: :Trans. GIS 2006
Sarah Elwood

In the mid-1990s, several critical texts raised concerns about the social, political, and epistemological implications of GIS. Subsequent responses to these critiques have fundamentally altered the technological, political, and intellectual practices of GIScience. Participatory GIS, for instance, has intervened in multiple ways to try to ameliorate uneven access to GIS and digital spatial data ...

2013
Jiangfan Feng Nan Xu

The combination of "voice technology" and "Mobile GIS", has greatly improved the intelligent degree of mobile GIS. Recently, significant attention in the field of scientific research is turning to how to realize quick conversion between natural language and GIS commands. However, the current study mostly concentrates on rules of conversion between natural language sentences and GIS commands fro...

2008
Ming-Hsiang Tsou

The paradigm of geographic information systems (GISs) is shifting from a closed, centralized GIS architecture, to an open, distributed geographic information services (GIServices) framework. With advances in computer networking and wireless communication technology, GIS is moving toward an integration of GIServices and spatial analysis functions via the internet and wireless communication. Wire...

ژورنال: :جغرافیایی سرزمین 2010
حیدر لطفی یوسفعلی زیاری بابک صادقی

دفن پسماند ها همواره به عنوان یکی از مشکلات اولیه مسئولین خدمات شهری محسوب شده است. مخاطرات زیست محیطی وبهداشتی دفن پسماند­ها به دلیل ارتباط آن با زندگی بشر نیاز به کنترل و اعمال سیستم مدیریت ویژه­ای دارد که در فرآوری توسعه و افزایش جمعیت پیچیدگی های بیشتری می یابد. با توجه به مشکلات دفع پسماند های شهری و کاهش پیامد­های مختلف آن نیاز به مکان یابی اصولی بوده است. لذا برای انتخاب یک مکان مناسب د...

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...

2000
Derek Bond

The early optimism surrounding GIS has now faded. Few GIS implementations have lived up to expectation. The most successful have been those at the operational level where their main role has been to replace paper maps with digital ones. However, as the cost of GIS implementation falls and spatial data becomes more readily available there is a need to consider the future of GIS and spatial analy...

Journal: :Cartographica 2005
Francis Harvey Mei-Po Kwan Marianna Pavlovskaya

Does critical theory have a place in GIS? While the answer today is "yes," and some stable ground around its understanding has been created, "critical GIS" remains an oxymoron for many GIS users and critical social theorists. Since 1968, the year in which Roger Tomlinson for the first time referred to GIS in designating the Ganadian Geographic Information System, GIS has become a multibillion-d...

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