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The paper discussed following topics related to :GEOprocessing; Geo-modeling; GIS; Geo-spatial domain applications; Geo-spatial Web services; and Geo-spatial fundamentals.
Rapid discovery and access of geospatial resources is critical for many application domains that require agile data integration. In this context, cross-domain geospatial applications need immediate access to geospatial resources of interest in order to rapidly integrate them in scalable, functional Web applications. In this paper we explore new perspectives to build pragmatic geospatial Web applications,...
Based on the service specification of the Open Geospatial Consortium (OGC), the OGC Web Processing Service (WPS) 1.0.0 standard provides distributed spatial data processing analyses for arbitrary geoprocessing functionalities using a standardized web service-based interface. Additionally, the standard offers the ability to define and use so-called WPS Profiles in a recyclable way for semantically-driven...
As an extension of traditional data mining, distributed data mining (DDM) is a well-known issue that has been extensively studied to extract some hidden, useful and interesting information from data by using various kinds of resources distributed in different geography positions. In the literature, there are many methods and technologies proposed to implement large-scale distributed data mining, but...
In the last decade, rapidly declining sensor costs triggered intense research in sensor technologies and vice versa. This fact led to the deployment of a number of sensor networks. However, these sensor networks tend to be deployed in monolithic stovepipe-like systems, limiting interoperability and reusability of both data and workflow components. This paper presents the Live Geography approach, which...
This paper used the Revised Universal Soil Loss Equation (RUSLE) to investigate the spatial distribution of annual soil loss in the upper basin of Miyun reservoir in China. Among the soil erosion factors, the vegetative cover or C factor has been one of the most difficult to estimate over broad geographic areas. In this paper, the C factor was estimated based on a multivariate regression analysis,...
During the last decade, Geographic Information Systems (GIS) considerably evolved: the amount of stored data explodes and the tools used to treat them have been improved. During the same period the arrival of very high spatial resolution satellite images (less than 1 meter) gives an inexhaustible source of information actually largely unexploited. We generally use images (satellite or airborne) in...
This paper presents the use of Augmented Reality technics exploiting distributed geographical information in a mobile device using wireless network. Our system offers useful informations (number of parcel, name of the owner, agronomic structure, juridical state, and adequate plant) related to each parcel geo-referenced according to the user's position and orientation. We used inertial sensor MTi and...
Spatial relations are used in different fields of image understanding, spatial reasoning, linguistics description of scene and new fields like computing with words. These spatial relations could be used to detect change in a spatial scene, either it is a change in topological structure or a change in metric information. Three type of spatial relations can be described by fuzzy Allen histograms. As...
Satellite imaging is well known as a useful tool in many scientific disciplines and various applications. Google Earth, with its free access, is now - thanks to increasing resolution and precision - such a tool. It improves the visualization and dissemination of scientific data, and opens doors to new discoveries. For example, many Nasca geoglyphs are now visible to Google Earth and so are the orientations...
With the rapid development of grid technology, studies on building web spatial analysis functions under grid environment have become the research hotspot of GIS. To implement complex geo-processing functions, it may need to integrate several different GIS service, which is usually distributed in different computer. Grid GIS provides a highly interactive and cooperative mechanism in implementing and...
A WebGIS is developed at NASA's Planetary Data System's Geosciences Node to facilitate the Apollo Analyst's Notebook to replay the Apollo missions. This system is created based on ESRI ArcGIS server 9.3.1 using JavaScript API. This WebGIS visually presents Apollo data to the general public through the Internet. It also provides data search capability and mapping functions to support the Lunar Reconnaissance...
The cooperation between the Brazilian and Chinese governments established in 1988 led to the development of imaging satellites, which help monitor the natural resources of both countries. In Brazil, the CBERS program includes a policy of free distribution of the images, first inside the national territory and, more recently, to other countries. This distribution is done through a catalogue available...
Geospatial models represent the knowledge acquired through previous research efforts, and they could be reused in future geographic research and applications to avoid repeating model implementation, especially for those require interdisciplinary knowledge. Glacier meltwater plays a significant role in the local and global human society and nature ecosystem. Models have been developed for glacier research,...
Clustering constitutes one of the most popular and important tasks in data analysis. The size and dimensionality of the existing geospatial databases stress the need for efficient and robust spatial clustering algorithms. In this paper we present the GeoSOM suite as a spatial clustering tool. GeoSOM suite implements the GeoSOM algorithm, which allows to perform clustering using both spatial and aspatial...
Spatial Grid provides a well solution to effective sharing of geographically dispersed spatial data. Various distributed spatial task processing like query can be achieved upon it. To support task allocation in Spatial Grid, effective and reliable spatial grid catalogue should be developed since it provides resource distribution information. This paper proposes a novel relation model based spatial...
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