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2018 26th International Conference on Geoinformatics最新文献

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SWRO-DDPM: A Sensor Web Resource Ontology for the Dynamic Disaster Process Monitoring SWRO-DDPM:一种用于灾害过程动态监测的传感器Web资源本体
Pub Date : 2018-06-01 DOI: 10.1109/GEOINFORMATICS.2018.8557157
Nengcheng Chen, Yingbing Liu, Chao Wang, Chang Xiong, Zeqiang Chen, C. Xiao
Due to the lack of a unified and comprehensive description of the dynamic disaster process monitoring, it is a great challenge to quickly and effectively share and discover more linked information resources in sensor web for the improvement of decision-making efficiency. A sensor web resource ontology for the dynamic disaster process monitoring was proposed in this paper, which can focus on the characteristics of the observation resources for diverse applications during different monitoring processes. To verify the feasibility of the method, case studies were conducted, including the semantic modeling of the in-situ monitoring and the remote sensing monitoring for flood disaster processes. The results demonstrated the effective sharing of various observation resources with different processes for environmental monitoring.
由于缺乏对灾害过程动态监测的统一、全面的描述,如何在传感器网络中快速有效地共享和发现更多的关联信息资源,提高决策效率是一个很大的挑战。提出了一种用于灾害过程动态监测的传感器web资源本体,该本体能够关注不同监测过程中不同应用的观测资源特点。为验证该方法的可行性,对洪水灾害过程的原位监测和遥感监测进行了语义建模。结果表明,在不同的环境监测过程中,各种观测资源是有效共享的。
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引用次数: 2
An Assessment of Paths for Transforming IFC to Shapefile for Integration of BIM and GIS IFC向Shapefile转型的路径评估——BIM与GIS的整合
Pub Date : 2018-06-01 DOI: 10.1109/GEOINFORMATICS.2018.8557099
Junxiang Zhu, Peng Wang, Xiangyu Wang
Building Information Modelling (BIM) could provide detailed 3D building models to Geographic Information Systems (GISs) for the emerging studies in smart cities/digital cities. During information exchange, Industry Foundation Classes (IFC) containing rich building information is the most used data format in BIM. However, GIS does not the capacity to directly consume the data in IFC due to data incompatibility between the two systems. Consequently, IFC files have to be transformed into a format that is accessible to GIS. Shapefile is one of them, given its popularity in geospatial science. This study tests the different formats and methods for transforming IFC to shapefile, assesses their performance, in order to offer a ranking, from which better decisions could be made when choosing an appropriate intermediate data format. The results show direct transformation from IFC to shapefile retained the most geometry and semantic information. If the direct transformation method does not work in some cases, 3DS, VRML, or SKP could be used as alternatives to retain most of the information, while DWG, DXF, KML, and KMZ should not be considered due to their poor performance in the test.
建筑信息模型(BIM)可以为地理信息系统(gis)提供详细的三维建筑模型,用于智能城市/数字城市的新兴研究。在信息交换过程中,包含丰富建筑信息的IFC (Industry Foundation Classes)是BIM中使用最多的数据格式。然而,由于两个系统之间的数据不兼容,GIS不具备直接使用IFC数据的能力。因此,国际金融公司的文件必须转换成地理信息系统可以使用的格式。Shapefile就是其中之一,因为它在地理空间科学中很受欢迎。本研究测试了将IFC转换为shapefile的不同格式和方法,评估了它们的性能,以便提供一个排名,以便在选择适当的中间数据格式时做出更好的决策。结果表明,从IFC到shapefile的直接转换保留了最多的几何和语义信息。如果直接转换方法在某些情况下不起作用,可以使用3DS, VRML或SKP作为替代方法来保留大部分信息,而DWG, DXF, KML和KMZ由于在测试中的性能较差而不应考虑。
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引用次数: 6
Design of Hydrogeological Information Model for Rock Tunnel 岩石隧道水文地质信息模型设计
Pub Date : 2018-06-01 DOI: 10.1109/GEOINFORMATICS.2018.8557088
Yi Yan, Tao Cheng
Rock tunnel is a kind of large-scale infrastructure with long-term investment cycle and complex technologies, involving a number of participants. Aiming at a large number of hydrogeological data in the project, establishing a standard description of unified information and sharing mechanism can effectively solve the problem of serious data loss and low information utilization rate. At present, rock tunnels are lack of unified standards for hydrogeological data. This paper takes the Laoying tunnel of Yunnan Province as the background to design a rock tunnel hydrogeological information model. The purpose is to unify the storage and transmission of data and solve the problem of file format incompatibility between different softwares in tunnel engineering. In addition, this paper proposes a new groundwater table estimation method, which has higher accuracy than the traditional method of using borehole data to interpolate, and thus can further optimize the hydrogeological information model.
岩石隧道是一种投资周期长、技术复杂、涉及主体众多的大型基础设施。针对工程中大量水文地质数据,建立统一信息的标准描述和共享机制,可以有效解决数据丢失严重、信息利用率低的问题。目前岩洞水文地质资料缺乏统一的标准。本文以云南老营隧道为背景,设计了岩石隧道水文地质信息模型。目的是为了统一数据的存储和传输,解决隧道工程中不同软件之间文件格式不兼容的问题。此外,本文还提出了一种新的地下水位估算方法,该方法比传统的利用钻孔数据插值的方法具有更高的精度,可以进一步优化水文地质信息模型。
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引用次数: 0
Research on Location Selection of Urban Sculpture Based on Big Data — Case Study of Taizhou 基于大数据的城市雕塑选址研究——以泰州市为例
Pub Date : 2018-06-01 DOI: 10.1109/GEOINFORMATICS.2018.8557105
Sha Xu, Chuanjia Gong, Ziyu Tong
Urban sculpture is an important component of urban art. In recent years, urban sculpture has experienced rapid development in China. However, location selection of urban sculpture is still difficult, especially in master plan. This paper attempts to explore for a new method of location selection for sculpture planning based on GIS and in combination with the practical case of Taizhou Urban Sculpture Planning. Firstly, the paper's author used the Internet to select the open space points suitable for the setting of urban sculptures in the city, and then utilized Baidu Map POI data, WeChat Heat map, open space area, and other factors to evaluate the importance of the aforementioned spatial nodes, thus determining the desired location selection of sculpture.
城市雕塑是城市艺术的重要组成部分。近年来,城市雕塑在中国发展迅速。然而,城市雕塑的选址仍然是一个难点,特别是在总体规划中。本文试图结合泰州市城市雕塑规划的实际案例,探索一种基于GIS的雕塑规划选址新方法。本文首先通过互联网选择适合在城市中设置城市雕塑的开放空间点,然后利用百度Map POI数据、微信Heat Map、开放空间面积等因素对上述空间节点的重要性进行评估,从而确定雕塑的理想位置选择。
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引用次数: 2
The Research on China's Tourism Finance in the Past Thirty-Seven Years 37年来中国旅游金融研究
Pub Date : 2018-06-01 DOI: 10.1109/GEOINFORMATICS.2018.8557060
Zhong-Chang Chen, Shu Xia
With the development of human society, tourism has become one of the strongest and largest industries in the global economy. Finance, as the core area of the economy, has played a major role in supporting and promoting the development of tourism. With the continuous expansion of financial market and tourism market, tourism finance has become a hot area of research. Along with the advent of the era of big data and the maturation of technology of the internet, this paper aims to discuss the past and status quo of the research on China's tourism finance over the past thirty-seven years and give views on its future work
随着人类社会的发展,旅游业已成为全球经济中最强大、规模最大的产业之一。金融作为经济的核心领域,对旅游业的发展起到了重要的支撑和推动作用。随着金融市场和旅游市场的不断扩大,旅游金融已成为研究的热点领域。随着大数据时代的到来和互联网技术的成熟,本文旨在探讨37年来中国旅游金融研究的过去和现状,并对未来的工作提出看法
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引用次数: 0
Debris Flow Forecasting of Northwest of Yunnan Province Based on LR, SVM, and RF Statistical Models 基于LR、SVM和RF统计模型的滇西北泥石流预报
Pub Date : 2018-06-01 DOI: 10.1109/GEOINFORMATICS.2018.8557115
Yang Mei, Fan Hong, Zeng Jia, Zhao Kang
Debris flow forecasting is of great significance for it could seriously endanger people's life and property safety. This paper considered the northwestern part of Yunnan Province as research area, and took the elevation, slope, rainfall, landform, evapotranspiration and NDVI (normalized difference vegetation index) as influential factors. Followed by two accuracy indicators TPR and FPR, best models of Logistic Regression (LR), Support Vector Machine (SVM), and Random Forest (RF) were established. Then a same test set were used to compare the effectiveness of them. The result shows that as a combined classifier, RF performed the best with TPR is 83.10% and FPR is 0.48%, SVM took second place with TPR is 74.99% and FPR is 1.98%, and LR is inclined to predict occurrence, causing its high FPR 22.71%. The LR, SVM and RF models built in this paper are quite effective and provide a theoretical base for prevention and reduction of debris flow. Additionally, 41 mud sensors data distributed in this region were collected, based on which the debris flow probability of these area were obtained by LR model to explore the effect of mud on debris flow. Experiments find that in some basins, mud has a positive impact on debris flow, and in the remain basins, mud may be slightly influenced by rainfall and thus cause a negative effect on debris flow.
泥石流预报对于严重危害人民生命财产安全具有重要意义。本文以云南西北部为研究区,以高程、坡度、降雨量、地貌、蒸散量和归一化植被指数NDVI为影响因子。在TPR和FPR两个精度指标的基础上,建立了Logistic回归(LR)、支持向量机(SVM)和随机森林(RF)的最佳模型。然后使用相同的测试集来比较它们的有效性。结果表明,作为组合分类器,RF表现最好,TPR为83.10%,FPR为0.48%,SVM次之,TPR为74.99%,FPR为1.98%,LR倾向于预测发生,FPR为22.71%。本文所建立的LR、SVM和RF模型是非常有效的,为预防和减少泥石流提供了理论基础。此外,收集了该区域分布的41个泥浆传感器数据,在此基础上,通过LR模型获得该区域的泥石流概率,探讨泥浆对泥石流的影响。实验发现,在部分盆地中,泥浆对泥石流有正向影响,而在其余盆地中,泥浆受降雨影响较小,对泥石流有负向影响。
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引用次数: 1
2018 26th International Conference on Geoinformatics [Copyright notice] 2018第26届国际地理信息学会议[版权声明]
Pub Date : 2018-06-01 DOI: 10.1109/geoinformatics.2018.8557050
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引用次数: 0
Time Accessibility Pattern Changes in Response to New Fast Transportation Mode: Approaches and Applications 响应新型快速交通模式的时间可达性模式变化:方法与应用
Pub Date : 2018-06-01 DOI: 10.1109/GEOINFORMATICS.2018.8557132
Wuyang Hong
In recent years, the development of a high-speed railway has become an important influencing factor in the process of regional pattern changes in China. Strengthening traffic accessibility has the most direct impact on regional development. As a case study, Nanjing, an urban agglomeration transportation hub of the high-speed railway in South Jiangsu, was selected as the object of this research. In this study, we conducted the cumulative cost distance algorithm in geographic information system (GIS) to construct the accessibility evaluation model based on minimum distance partition, which helps to analyze the effect on the accessibility pattern of regional central cities in urban agglomerations scale. The results indicated that the high-speed railways increased regional space-time contraction and reduced the time cost between areas to improve the overall level of regional accessibility. Time costs of each node to Nanjing diminished slightly, and the accessibility gap narrowed gradually. More cities achieve cross-city day flow and result in Urban Integration effect which can be profound influence on the economic and spatial structure. Furthermore, HSR services are intended to be medium-and long-distance connections as the isochronous rings of 90 min and 120 min significantly expanded the scope. Also, the improvement of accessibility by high-speed railway has the Hourglass Effect according to city scale.
近年来,高速铁路的发展已成为中国区域格局变化过程中的重要影响因素。加强交通可达性对区域发展的影响最为直接。以苏南高铁城市群交通枢纽南京为案例研究对象。本研究利用地理信息系统(GIS)中的累积成本距离算法,构建了基于最小距离划分的可达性评价模型,分析了城市群尺度上区域中心城市可达性格局的影响。结果表明:高速铁路增加了区域间的时空收缩,降低了区域间的时间成本,提高了区域的整体可达性水平;各节点到南京的时间成本略有下降,可达性差距逐渐缩小。越来越多的城市实现了跨城市的日流,产生了城市一体化效应,对经济和空间结构产生了深远的影响。此外,由于90分钟和120分钟的等时环大大扩大了范围,高铁服务旨在成为中长途连接。高铁对可达性的改善在城市规模上存在沙漏效应。
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引用次数: 0
Remote Sensing Image Registration with Multiple Features and Parameter Optimization 多特征遥感图像配准与参数优化
Pub Date : 2018-06-01 DOI: 10.1109/GEOINFORMATICS.2018.8557150
Wanjing Zhao, Yang Yang, Kun Yang
Remote sensing image registration plays an essential role in agriculture and military fields, it has been widely used in agriculture and urban land use planning, military damage assessment, and environmental monitoring, etc. In this paper, we propose an image registration method based on multiple features and parameter optimization. Which has a contribution, the parameter $L$ is optimized in the local feature. And we optimize the parameter in different registration modes to promote the registration accurate. We evaluated the performances of the proposed method by a series of remote sensing images from Google Earth, and compared with five state-of-the-art methods. Where our method shows the best alignments in most scenarios.
遥感图像配准在农业和军事领域发挥着至关重要的作用,广泛应用于农业和城市土地利用规划、军事毁损评估、环境监测等领域。本文提出了一种基于多特征和参数优化的图像配准方法。其中有一个贡献,参数$L$在局部特征中被优化。并对不同配准方式下的参数进行了优化,以提高配准精度。我们通过一系列来自Google Earth的遥感图像评估了所提出方法的性能,并与五种最先进的方法进行了比较。我们的方法在大多数情况下显示出最佳对齐。
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引用次数: 0
A Novel Localization Algorithm Based on Invasive Weed Optimization in Wireless Sensor Networks 基于入侵杂草优化的无线传感器网络定位算法
Pub Date : 2018-06-01 DOI: 10.1109/GEOINFORMATICS.2018.8557199
Yaming Zhang, Yan Liu, Jianhou Gan
Localization is one of the most critical issues in wireless sensor networks (WSNs). An important research direction within localization is to develop schemes by using optimization methods. In this paper, invasive weed optimization (IWO) algorithm is used for the field of WSNs localization. Furthermore, two measures are proposed to improve the performance of algorithm. Firstly, the idea of proactive estimation is put forward and used to narrow down and restrict the feasible solution space, which helps to speed up the global search. Then, an adaptive standard deviation (SD) is presented to replace the constant SD in the original IWO, which helps the algorithm to improve the convergence speed, and make it more exploitive. Results show that the proposed localization algorithm achieves higher accuracy with lower network costs and energy consumption compared to the existing schemes.
定位是无线传感器网络中最关键的问题之一。利用优化方法制定方案是定位研究的一个重要方向。本文将入侵杂草优化(IWO)算法应用于无线传感器网络定位领域。在此基础上,提出了两种改进算法性能的措施。首先,提出了主动估计的思想,并利用主动估计来缩小和限制可行解空间,从而加快全局搜索速度;然后,提出了一个自适应标准差(SD)来代替原IWO中的常数SD,这有助于提高算法的收敛速度,使其更具可开发性。结果表明,与现有定位算法相比,本文提出的定位算法在降低网络开销和能量消耗的同时,实现了更高的定位精度。
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引用次数: 2
期刊
2018 26th International Conference on Geoinformatics
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