نتایج جستجو برای: gis analysis

تعداد نتایج: 2849344  

2011
Mamta Malik A. K. Sharma

Cluster detection is a tool employed by GIS scientists who specialize in the field of spatial analysis. This study employed a combination of GIS, RS and a novel 3DCCOM spatial data clustering algorithm to assess the rural demographic development strategies of Sonepat block, Haryana, India. This Study is undertaken in the rural and rural-based district in India to demonstrate the integration of ...

Journal: :Environmental Modelling and Software 2002
Daene C. McKinney Ximing Cai

Many challenges are associated with the integration of geographic information systems (GISs) with models in specific applications. One of them is adapting models to the environment of GISs. Unique aspects of water resource management problems require a special approach to development of GIS data structures. Expanded development of GIS applications for handling water resources management analysi...

Journal: :Computers & Geosciences 2005
Hongjie Xie Xiaobing Zhou Enrique R. Vivoni Jan M. H. Hendrickx Eric E. Small

This study develops a geographical information system (GIS) approach for automated processing of the Next Generation Weather Radar (NEXRAD) Stage III precipitation data. The automated processing system, implemented by using commercial GIS and a number of Perl scripts and C/C++ programs, allows for rapid data display, requires less storage capacity, and provides the analytical and data visualiza...

2012
Christian Becker Joern Ostermann Martin Pahl

Data in Geo Information Systems (GIS) is used for map services and various applications. Thus, quality assessment on a regular basis is required to keep the data up-to-date. In this paper we focus on one key reasons for updates: incorrect object borders. State of the art systems semi-automatically analyse up-to-date satellite image data to narrow down areas that have to be considered for GIS up...

2016
Christopher D. Putnam Anjana Srivatsan Rahul V. Nene Sandra L. Martinez Sarah P. Clotfelter Sara N. Bell Steven B. Somach Jorge E.S. de Souza André F. Fonseca Sandro J. de Souza Richard D. Kolodner

Gross chromosomal rearrangements (GCRs) play an important role in human diseases, including cancer. The identity of all Genome Instability Suppressing (GIS) genes is not currently known. Here multiple Saccharomyces cerevisiae GCR assays and query mutations were crossed into arrays of mutants to identify progeny with increased GCR rates. One hundred eighty two GIS genes were identified that supp...

Journal: :Inf. Sci. 2002
Josef Benedikt Sebastian Reinberg Leopold Riedl

Maps have been major sources of information for a long time. Geographic Information Systems (GIS) use digital data, elevation models, satellite images, expert systems and related open source information for planning, detection, evaluation and decision making. Maps as well as GIS use spatial attributes of data in particular. Spatial Information derived is a feature of both data and language to c...

Journal: :CoRR 2013
Chandranath Adak

This paper introduces an unsupervised technique to detect the changed region of multitemporal images on a same reference plane with the help of rough clustering. The proposed technique is a soft-computing approach, based on the concept of rough set with rough clustering and Pawlak’s accuracy. It is less noisy and avoids pre-deterministic knowledge about the distribution of the changed and uncha...

2004
Miguel Rodríguez Luaces Nieves R. Brisaboa José R. Paramá José Ramon Rios Viqueira

Geographic information systems (GIS) are becoming more usual due to the improved performance of computer systems. GIS applications are being developed using the three-tier software architecture traditionally used for generalpurpose information systems. Even though this architecture is suitable for GIS applications, the special nature and exclusive characteristics of geographic information pose ...

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...

2002
Anders Stenman Krister Forsman Fredrik Gustafsson

A method for detecting static friction (stiction) in control valves is proposed. The method is model-based and is inspired by ideas from the fields of change detection and multi-model mode estimation. Opposed to existing methods only limited process knowledge is needed and it is not required that the loop has oscillating behavior. The advantage of the method is illustrated in both numerical sim...

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