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2011 19th International Conference on Geoinformatics最新文献

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A spatial data partition algorithm based on statistical cluster 一种基于统计聚类的空间数据分区算法
2011 19th International Conference on Geoinformatics Pub Date : 2011-06-24 DOI: 10.1109/GEOINFORMATICS.2011.5981085
J. Ye, Bin Chen, Jian Chen, Yu Fang, Liang Wu
{"title":"A spatial data partition algorithm based on statistical cluster","authors":"J. Ye, Bin Chen, Jian Chen, Yu Fang, Liang Wu","doi":"10.1109/GEOINFORMATICS.2011.5981085","DOIUrl":"https://doi.org/10.1109/GEOINFORMATICS.2011.5981085","url":null,"abstract":"Nowadays, high performance parallel computation is deemed as a good solution to the complicated processing of massive spatial data. It is a very important precondition to make the most of this technology that data be partitioned. In this paper, we talk about the general strategy of spatial data partition and summarize its principles are good space proximity, balanced data load, small data redundancy and short time consumed. After analyzing the current partition algorithms, we find that there are many partition problems, such as the space division and load unbalanced. In order to solve these problems, we presented a new partition algorithm based on the statistical cluster method, which has better spatial proximity and data load than traditional algorithms.","PeriodicalId":413886,"journal":{"name":"2011 19th International Conference on Geoinformatics","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122626618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
A flexible soil moisture calculation workflow under geographic Web Service 地理Web服务下灵活的土壤湿度计算工作流
2011 19th International Conference on Geoinformatics Pub Date : 2011-06-24 DOI: 10.1109/GEOINFORMATICS.2011.5981016
Jiaying Chen, Haitao Zhang, Jianli Gu, Long Guo, Nengcheng Chen
{"title":"A flexible soil moisture calculation workflow under geographic Web Service","authors":"Jiaying Chen, Haitao Zhang, Jianli Gu, Long Guo, Nengcheng Chen","doi":"10.1109/GEOINFORMATICS.2011.5981016","DOIUrl":"https://doi.org/10.1109/GEOINFORMATICS.2011.5981016","url":null,"abstract":"Temperature-Vegetation Dryness Index (TVDI) is the most important index in describing the soil moisture. Available TVDI calculation depends on the remote sensing data and computational algorithms. With a partial updating of the algorithms and remote sensing data, it needs to recompile and redeploy the implementation of the TVDI calculation, which contains duplicated work and can't take full use of the available information resources. This research is focus on how to reuse the soil information under the internet environment. In this paper, all research based on the Web Service and workflow technologies and implementation uses the Windows workflow foundation model as the modeling language. In the end, taking Wuhan as a study area, the TVDI calculating workflow model is built up for soil moisture, then we discuss how to update the TVDI workflow model to fit the different spatial resolution remote sensing image conditions, at the same time, keeping the original TVDI calculation workflow model and avoiding the duplicated work.","PeriodicalId":413886,"journal":{"name":"2011 19th International Conference on Geoinformatics","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122056728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A parallel implementation of nearest neighbor analysis based on GPGPU 基于GPGPU的最近邻分析并行实现
2011 19th International Conference on Geoinformatics Pub Date : 2011-06-24 DOI: 10.1109/GEOINFORMATICS.2011.5980899
Yong Zhao, Bin Chen, Yu Fang, Zhou Huang, Yuehu Liu, Hao Yu
{"title":"A parallel implementation of nearest neighbor analysis based on GPGPU","authors":"Yong Zhao, Bin Chen, Yu Fang, Zhou Huang, Yuehu Liu, Hao Yu","doi":"10.1109/GEOINFORMATICS.2011.5980899","DOIUrl":"https://doi.org/10.1109/GEOINFORMATICS.2011.5980899","url":null,"abstract":"Nearest neighbor analysis is one of the classic methods to find out the tendency of the observed point dataset. With the explosion of spatial data, conventional implementation of nearest neighbor analysis cannot present high performance towards large amount of dataset. So in this paper, a parallel implementation of nearest neighbor analysis is proposed, with parallelization of computing the nearest neighbor distance of each point. Compared with CPU, now GPU can provide more powerful capacity of processing floating point operations and has more multiprocessors for parallel processing. So we develop the parallel program of nearest neighbor analysis with CUDA (Compute Unified Device Architecture) in terms of GPGPU (General-Purpose computing on Graphics Processing Units). In our experiments, when the number of points is large, the speedup of the parallel implementation can achieve more than 10, compared with the conventional implementation in CPU.","PeriodicalId":413886,"journal":{"name":"2011 19th International Conference on Geoinformatics","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122113244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Monitoring transport of suspended sediment in the Nanhui nearshore integrating remote sensing images with hydrodynamic model 遥感影像与水动力模型相结合的南汇近岸悬沙输移监测
2011 19th International Conference on Geoinformatics Pub Date : 2011-06-24 DOI: 10.1109/GEOINFORMATICS.2011.5980895
Runyuan Kuang, Yunxuan Zhou, Yuanfeng Zhu
{"title":"Monitoring transport of suspended sediment in the Nanhui nearshore integrating remote sensing images with hydrodynamic model","authors":"Runyuan Kuang, Yunxuan Zhou, Yuanfeng Zhu","doi":"10.1109/GEOINFORMATICS.2011.5980895","DOIUrl":"https://doi.org/10.1109/GEOINFORMATICS.2011.5980895","url":null,"abstract":"Due to river runoff flow and tidal flow, coastal waters are often characteristic of high concentration of suspended sediment. In this paper, by using MODIS images of 250 m resolution and hydrodynamic model and in site observation, the author analyze the distribution characteristics of suspended sediment and hydrodynamics mechanism. Relatively high Suspended sediment concentration distribute in the alongshore and south and north of Nanhui neareshore. During the flood tide period, distribution range of high suspended sediment concentration is northward moved. During ebb tide period, the zone of turbidity maximum is shown near the south of Nanhui nearshore. Based on terrain data analyses in 1999, 2003 and 2008, altitude value of underwater terrain in most area of Nanhui nearshore is increase. Most area of Nanhui nearshore is depositing. Momaosha mudflat in the north of Nanhui nearshore is extending southeastward. South of the Nanhui subaqueous beach is extending slowly southeastward and southward.","PeriodicalId":413886,"journal":{"name":"2011 19th International Conference on Geoinformatics","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128483802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Expression of GIS maps based on Flex 基于Flex的GIS地图表达
2011 19th International Conference on Geoinformatics Pub Date : 2011-06-24 DOI: 10.1109/GEOINFORMATICS.2011.5981188
Jirong Luo, Guirong Xiao
{"title":"Expression of GIS maps based on Flex","authors":"Jirong Luo, Guirong Xiao","doi":"10.1109/GEOINFORMATICS.2011.5981188","DOIUrl":"https://doi.org/10.1109/GEOINFORMATICS.2011.5981188","url":null,"abstract":"The expression of electronic map was analyzed in the traditional Internet GIS and the relevant information about GIS integrated with Flex-based RIA (Rich Internet Application) was described in this paper. In addition, a new expression way of GIS electronic map was discussed too. The page mode of book was applied to Internet GIS to show the current multi-source and multi-type of electronic map. The research was studied mainly from the aspects of the structure of the design, data source management and the expression design, etc. Characteristics and some application ranges about the GIS-EBook were also listed. A practical system which was an atlas, was developed in the paper. The feasibility and correctness of the proposed method was verified by the experimental results.","PeriodicalId":413886,"journal":{"name":"2011 19th International Conference on Geoinformatics","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128539216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Forest form mapping system for managing forest resource: Design and implementation 面向森林资源管理的森林形态映射系统的设计与实现
2011 19th International Conference on Geoinformatics Pub Date : 2011-06-24 DOI: 10.1109/GEOINFORMATICS.2011.5981008
Ruren Li, Ruixi Wang, X. Ye
{"title":"Forest form mapping system for managing forest resource: Design and implementation","authors":"Ruren Li, Ruixi Wang, X. Ye","doi":"10.1109/GEOINFORMATICS.2011.5981008","DOIUrl":"https://doi.org/10.1109/GEOINFORMATICS.2011.5981008","url":null,"abstract":"GIS-based mapping and decision support system has been efficiently and widely used in many different fields and domains. In practice, however, the application in forestry is still relatively limited, especially the large-scale mapping and specialized software development, which has witnessed a growing market from various customers. Supported by National High Technology Research and Development Program of China, this research designs and implements a new Forest Form Mapping System for China's Forest Resource, as well as a platform for research, education and decision support towards sustainable environmental management. It demonstrated how GPS data and the second national survey data can be integrated, visualized, and reported in a .NET and ArcEngine based system. In recognizing its flexibility in architecture and friendly user interface, it is suitable for a variety of applications in forest resource management.","PeriodicalId":413886,"journal":{"name":"2011 19th International Conference on Geoinformatics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129336194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Satellite image classification based on Gabor texture features and SVM 基于Gabor纹理特征和支持向量机的卫星图像分类
2011 19th International Conference on Geoinformatics Pub Date : 2011-06-24 DOI: 10.1109/GEOINFORMATICS.2011.5980774
Jin-Tsong Hwang, K. Chang, Hun-chin Chiang
{"title":"Satellite image classification based on Gabor texture features and SVM","authors":"Jin-Tsong Hwang, K. Chang, Hun-chin Chiang","doi":"10.1109/GEOINFORMATICS.2011.5980774","DOIUrl":"https://doi.org/10.1109/GEOINFORMATICS.2011.5980774","url":null,"abstract":"The texture is a very important factor in region-based segmentation of images. Texture Applications include industrial inspection, estimation of object range and orientation, shape analysis, satellite imaging, and medical diagnosis. In this paper we present a methodology based on computing a set of textural measures with Gabor filter. The time-frequency transformed based method of texture discrimination, which is in turn based on Gabor filters is done. In Gabor transform, a signal can be represented in terms of sinusoids that are modulated by translated Gaussian windows. In this paper, the Gabor texture features combined with original bands of image, PCA, and NDVI were adopted as the characteristic vector of training samples for SVM, and Decision Tree classification. Finally, traditional classification schemes of Maximum Likelihood were comparatively studied. For most of the cases, the SVM method gave the highest correct classification rate within these three methodologies. Decision tree and SVM have their superiority respectively.","PeriodicalId":413886,"journal":{"name":"2011 19th International Conference on Geoinformatics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129358076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Design and realization of technical service system for urban blank-odor river treatment based on Web technology 基于Web技术的城市恶臭河流治理技术服务系统的设计与实现
2011 19th International Conference on Geoinformatics Pub Date : 2011-06-24 DOI: 10.1109/GEOINFORMATICS.2011.5980818
Yulan Hou, Honglin Li, Jun Wang, Zhihong Li, Zhenlou Chen
{"title":"Design and realization of technical service system for urban blank-odor river treatment based on Web technology","authors":"Yulan Hou, Honglin Li, Jun Wang, Zhihong Li, Zhenlou Chen","doi":"10.1109/GEOINFORMATICS.2011.5980818","DOIUrl":"https://doi.org/10.1109/GEOINFORMATICS.2011.5980818","url":null,"abstract":"With the rapid development of Chinese urbanization and industrialization, it has become an increasingly pressing problem to alleviate the situation of blackening and stink of the urban rivers. In the requirement of controlling black-odor river, this research was operated with the support of the National Key Water Program during the 11th Five-Year Plan Period. In this study, the commonness technical network service system of urban black-odor river treatment is designed and developed, using B/S structure model and based on the WebGIS technology and database technology. The service system can realize three functions of technical browse and query, technique service and performance evaluation, and provide systematic and effective decision support basis for the treatment of Chinese urban black and stinking river.","PeriodicalId":413886,"journal":{"name":"2011 19th International Conference on Geoinformatics","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130667647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design and implementation of the Geospatial Early Warning System of the Insect Pest based on SOA 基于SOA的害虫地理空间预警系统的设计与实现
2011 19th International Conference on Geoinformatics Pub Date : 2011-06-24 DOI: 10.1109/GEOINFORMATICS.2011.5981063
Zhengwei Zhu, Shanqin Wang, Jiaying Chen, Hongyu Zhang, Wenfeng Dun
{"title":"Design and implementation of the Geospatial Early Warning System of the Insect Pest based on SOA","authors":"Zhengwei Zhu, Shanqin Wang, Jiaying Chen, Hongyu Zhang, Wenfeng Dun","doi":"10.1109/GEOINFORMATICS.2011.5981063","DOIUrl":"https://doi.org/10.1109/GEOINFORMATICS.2011.5981063","url":null,"abstract":"Geospatial Early Warning System of the Insect Pest is built to take full advantage of local and network data sources, which are constantly changing when used in the early warning system of pest. The system is a Web GIS that was developed as the B/S structure based on SOA. It implements a wide range of services through the integration or combination of components using Web Service technology, and its Early Warning module was realized based on Back-Propagation Neural Network (BPNN). Simultaneously, Web ADF control is used to manage and use spatial data, by which the effectual integration of spatial data sources on different platforms is realized. This system also provides various mathematical models and multiple output to support good expression of predicting outcomes. Due to feasible structural design, the system enjoys excellent expandability and effective modules reuse, the maintenance and improvement of system are convenient.","PeriodicalId":413886,"journal":{"name":"2011 19th International Conference on Geoinformatics","volume":"228 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123141732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Geospatial web portal for the Tibetan Plateau ecological safety data services 地理空间门户网站为青藏高原生态安全数据服务
2011 19th International Conference on Geoinformatics Pub Date : 2011-06-24 DOI: 10.1109/GEOINFORMATICS.2011.5980915
Aike Kan, Xuben Wang, Xu Wu
{"title":"Geospatial web portal for the Tibetan Plateau ecological safety data services","authors":"Aike Kan, Xuben Wang, Xu Wu","doi":"10.1109/GEOINFORMATICS.2011.5980915","DOIUrl":"https://doi.org/10.1109/GEOINFORMATICS.2011.5980915","url":null,"abstract":"This paper proposes a geospatial web portal for the Tibetan Plateau ecological safety data services based on web services, portal technology and GIS technology. It serves as an online data supporting platform for geospatial data integration, management, submission, publishing and sharing. Its framework presents a three layer architecture consisting of data resource layer, data service layer, data representation layer based on ASP.NET MVC2 and ArcGIS Server 9.3. As employed in the portal implementation, Microsoft Silverlight technology and Bing Map technology, add rich geospatial represent characteristics and interactive performance to the client. The geospatial web portal is an important step in establishing an eco-environment-oriented SDI (Spatial Data Infrastructure) for Tibetan Plateau, which will promote collaborative effort to build, share, and disseminate geospatial information resources for the national ecological safe shelter protection and construction.","PeriodicalId":413886,"journal":{"name":"2011 19th International Conference on Geoinformatics","volume":"59 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120871579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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