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针对传统的税源稽查方式对税源的地理位置及实际占地面积掌握不清的问题,该文设计并实现了智慧税源稽查系统。外业稽查系统基于移动GIS和数字签名等技术,利用高分辨率影像实现了纳税企业地理位置采集及土地使用税风险预警;采用Spatialite嵌入式空间数据库实现了对空间数据的直接存储,减少了内业后期处理的工作量;提出图形与属性数据相匹配方法,解决了绘制图形ID为随机数问题。通过通州市地税局试点应用,证明了该系统可提高外业稽查人员工作效率,降低偷税漏税现象,简化内业数据处理的工作量。该系统的研发为税务稽查人员外业核查税源的申报和内业数据处理提供了解决方案。 相似文献
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基于知识的空间决策支持模型集成 总被引:11,自引:1,他引:10
提出通过黑板集成模型,设计并实现了一个以模糊逻辑为基础的空间决策支持系统。该系统以产生式规则表达知识,采用逆向推理,使之成为兼具地理信息系统、专家系统,应用模型的集成化空间决策支持系统。使用该系统建立了重庆市区投资环境。使用该系统建立了重庆市区投资环境评价信息系统。 相似文献
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介绍过桥结构健康监测系统的总体设计方案、各个子系统的设计方案和硬软件设备及其实现,并分析该健康监测系统在成桥试验和运营中监测的过桥结构的动态反应。结果表明,该过桥结构实时监测系统能够协调运行,并实现预期设计功能,为类似的工程结构健康监测系统的设计与实施积累了经验。 相似文献
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为实现海量栅格数据的分布式处理,本文基于Hadoop和Spark分布式计算技术,结合开源框架GeoTrellis地理处理引擎,设计并实现了一个海量栅格数据的分布式计算系统.重点探讨了海量栅格数据分布式存储和计算架构,并基于GeoTrellis设计并实现了该分布式计算系统.最后,以10 m分辨率的全球地表覆盖地图对系统计算性能进行测试,结果表明:基于GeoTrellis开发的分布式计算系统能够有效地提升海量栅格数据的处理能力. 相似文献
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以VC++6.0为开发平台,利用MFC提供的类库,研究GIS矢量图形底层系统数据组织的方法,以及网格索引在该系统中的建立过程。设计并开发了矢量图形系统,实现了数据导入、组织管理、显示、查询等系统功能。 相似文献
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This paper presents a study for linking remotely sensed data with property tax related issues. First, it discusses the key attributes required for property taxation and evaluates the capabilities of remote sensing technology to measure these attributes accurately at parcel level. Next, it presents a detailed case study of six representative wards of different characteristics in Dehradun, India, that illustrates how measurements of several of these attributes supported by field survey can be combined to address the issues related to property taxation. Information derived for various factors quantifies the property taxation contributed by an average dwelling unit of the different income groups. Results show that the property tax calculated in different wards varies between 55% for the high-income group, 32% for the middle-income group, 12% for the low-income group and 1% for squatter units. The study concludes that higher spatial resolution satellite data and integrates social survey helps to assess the socio-economic status of the population for tax contribution purposes. 相似文献
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为了方便社区日常管理,提高工作效率,增强社区管理工作的社会公共服务能力和应急反应能力,基于VC++6.0开发环境、MapX5.0组件技术和数据库技术,将GIS作为社区综合信息定位和整合的平台,设计了社区综合信息管理系统。最后以某社区的安检、计生、税收业务等综合信息作为实例数据,实现了该社区综合信息的可视化显示、空间查询及统计分析,验证了系统的可行性和高效性,为社区资源共享和信息服务搭建了平台。 相似文献
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本文简要讨论了加拿大育空地区的矿业投资环境,包括基本地质特征、矿业经济、矿业管理体制、主要矿业管理机构、主要矿业法律与矿产使用权设置、主要矿业税费、主要矿业投资政策、管理政策和环境政策等。 相似文献
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挪威是世界上重要的石油生产国和出口国,对世界石油市场供需稳定有重要影响。本文在项目工作基础上,简要讨论了挪威油气资源管理与投资环境,包括油气资源潜力与油气工业概况、油气管理体制与框架、主要管理机构、主要油气法律、油气权设置、主要油气管理政策、油气税制等。 相似文献
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It is generally acknowledged that immovable property taxes are one of the main revenue sources for local government. The literature emphasizes that the administration of property taxes needs well-developed inventories or registers that provide complete and accurate records of the taxed properties and their legal-economic attributes. This requirement is generally fulfilled by Spatial Data Infrastructures (SDIs) in which the coordinate exchange and sharing of geo-spatial data is provided by separate registers/information systems such as: cadastral systems, building and address registers. Recently, the Open Geospatial Consortium presented a core component of a 3D SDI in the form of an international domain standard for representing, storing and exchanging 3D city models. The CityGML allows the semantic and 3D geometrical representation of physical objects but does not deal with the legal and administrative aspects of the city objects which are required for the process of property taxation. This paper outlines the development of an Application Domain Extension (ADE) for the immovable property taxation domain that expands the CityGML data model with the legal and administrative concepts defined in Turkish Law. The study shows that this ADE could be a 3D national data model for municipal information systems and facilitate a more efficient taxation process, as well as providing data for urban planning, facility management and other municipal services. 相似文献
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房地产计税价格批量评估实证研究 总被引:3,自引:0,他引:3
结合批量评估的技术思路,以深圳市二手住宅计税价格批量评估为例,构建了以长期趋势法,成本法为基本原理,结合地理信息技术(GIS)的批量评估模型,并提出研究结论与未来发展设想. 相似文献
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Carbon tax has been advocated as an effective economic instrument for the abatement of CO2 emission by various countries, including China, the world’s biggest carbon emission country. However, carbon emission abatement cannot be done while ignoring the impact on economic growth. A delicate balance needs to be achieved between the two to find an appropriate pathway for sustainable development. This paper applies a multi-objective optimization approach to analyze the impact of levying carbon tax on the energy-intensive sectors of Guangdong province in China under the constraint of emission reduction target. This approach allows us to evaluate carbon emission minimization while maximizing GDP. For policy analysis, we construct five scenarios for evaluation and optimal choice. The results of the analysis show that a lower initial carbon tax rate is not necessarily better, and that a carbon tax is an effective means to reduce CO2 emissions while maintaining a certain level of GDP growth. 相似文献