Based on the status quo of rural informatization and information service,this article conducts analysis and discussion of problems in rural informatization and urban-rural information fusion,using statistics. And corr...Based on the status quo of rural informatization and information service,this article conducts analysis and discussion of problems in rural informatization and urban-rural information fusion,using statistics. And corresponding countermeasures are put forward as follows: building rural information platform; strengthening information literacy training in rural areas and cultivating new farmers; making information network serve production and operation to increase jobs and income for farmers; developing rural e-commerce; enhancing network information security and prevention.展开更多
From the distinct boundary consciousness contrast between rural and urban areas as two fields,the social life portrayals in Chinese novels are reflected.In Chinese novels,however,great importance is attached to the ru...From the distinct boundary consciousness contrast between rural and urban areas as two fields,the social life portrayals in Chinese novels are reflected.In Chinese novels,however,great importance is attached to the rural novels,while urban novels are thought lightly;the mainstream is rural novel,while urban novel is turned into only a tributary.During the long development period of the novels,the conflict between the urban and rural different cultures is significant.The expression to different fields in rural and urban novels and the conflict between the rural and urban cultures in novels are analyzed,and finally the fusion of the urban and rural relationship in the novels during this period is introduced.展开更多
In recent years image fusion method has been used widely in different studies to improve spatial resolution of multispectral images. This study aims to fuse high resolution satellite imagery with low multispectral ima...In recent years image fusion method has been used widely in different studies to improve spatial resolution of multispectral images. This study aims to fuse high resolution satellite imagery with low multispectral imagery in order to assist policymakers in the effective planning and management of urban forest ecosystem in Baton Rouge. To accomplish these objectives, Landsat 8 and PlanetScope satellite images were acquired from United States Geological Survey (USGS) Earth Explorer and Planet websites with pixel resolution of 30m and 3m respectively. The reference images (observed Landsat 8 and PlanetScope imagery) were acquired on 06/08/2020 and 11/19/2020. The image processing was performed in ArcMap and used 6-5-4 band combination for Landsat 8 to visually inspect healthy vegetation and the green spaces. The near-infrared (NIR) panchromatic band for PlanetScope was merged with Landsat 8 image using the Create Pan-Sharpened raster tool in ArcMap and applied the Intensity-Hue-Saturation (IHS) method. In addition, location of urban forestry parks in the study area was picked using the handheld GPS and recorded in an excel sheet. This sheet was converted into Excel (.csv) file and imported into ESRI ArcMap to identify the spatial distribution of the green spaces in East Baton Rouge parish. Results show fused images have better contrast and improve visualization of spatial features than non-fused images. For example, roads, trees, buildings appear sharper, easily discernible, and less pixelated compared to the Landsat 8 image in the fused image. The paper concludes by outlining policy recommendations in the form of sequential measurement of urban forest over time to help track changes and allows for better informed policy and decision making with respect to urban forest management.展开更多
城市轨道交通起讫点(origin-destination,OD)客流短时预测在智能交通系统中意义重大,它为交通管控策略实施以及出行者出行选择提供了重要的决策依据。卷积神经网络被广泛用于交通数据空间相关性提取,但其平移不变性与局部敏感性导致该...城市轨道交通起讫点(origin-destination,OD)客流短时预测在智能交通系统中意义重大,它为交通管控策略实施以及出行者出行选择提供了重要的决策依据。卷积神经网络被广泛用于交通数据空间相关性提取,但其平移不变性与局部敏感性导致该方法更重视局部特征而忽视全局特征。本研究构建了基于注意力机制的异构数据特征提取机模型(heterogeneous data feature extraction machine,HDFEM)以实现OD矩阵空间相关性的全局感知。该模型从时空特征和用地属性特征出发,构造异构数据OD时空张量与地理信息张量,依托模型张量编码层对异构数据张量进行分割与编码,通过注意力机制连接各张量块特征,提取OD矩阵中各个部分间的空间相关性。该方法不仅实现了异构数据与OD客流数据的融合,还兼顾了卷积神经网络模型未能处理的OD矩阵远距离特征,进而帮助模型更全面地学习OD客流的空间特征。对于OD时序特性,该模型使用了长短时记忆网络来处理。在杭州地铁自动售检票系统(auto fare collection,AFC)数据集上的实验结果表明:HDFEM模型相对于基于卷积神经网络的预测模型,其均方误差、平均绝对误差与标准均方根误差分别下降了4.1%,2.5%,2%,验证了全局OD特征感知对于城市轨道交通OD客流预测的重要性。展开更多
文章探讨智慧城市与城市建筑设计的融合,通过分析智慧城市的定义和特征,围绕可持续发展、以用户体验为中心以及技术创新的原则,探讨新加坡的Marina Bay Sands、谷歌的Nest智能家居系统和迪拜的Burj Khalifa 3个智慧城市与城市建筑设计...文章探讨智慧城市与城市建筑设计的融合,通过分析智慧城市的定义和特征,围绕可持续发展、以用户体验为中心以及技术创新的原则,探讨新加坡的Marina Bay Sands、谷歌的Nest智能家居系统和迪拜的Burj Khalifa 3个智慧城市与城市建筑设计融合的实例。结果显示,智慧城市与城市建筑设计的融合能够促进城市的可持续发展,提升居民的生活体验和安全感。该融合是构建更高效、环保且人性化城市的关键步骤,对未来城市规划和建筑设计具有深远影响。展开更多
基金Supported by Humanities and Social Sciences Project in Chongqing City (2008CJ49)
文摘Based on the status quo of rural informatization and information service,this article conducts analysis and discussion of problems in rural informatization and urban-rural information fusion,using statistics. And corresponding countermeasures are put forward as follows: building rural information platform; strengthening information literacy training in rural areas and cultivating new farmers; making information network serve production and operation to increase jobs and income for farmers; developing rural e-commerce; enhancing network information security and prevention.
基金The Planning Social Science Fund Project of Xi＇ an in 2014 ： Study on the Theme of the Urban and Rural Relationship in the Novels of the New Century （ No. 14IN89）. It is a special foreign affair project managed by Li Li.
文摘From the distinct boundary consciousness contrast between rural and urban areas as two fields,the social life portrayals in Chinese novels are reflected.In Chinese novels,however,great importance is attached to the rural novels,while urban novels are thought lightly;the mainstream is rural novel,while urban novel is turned into only a tributary.During the long development period of the novels,the conflict between the urban and rural different cultures is significant.The expression to different fields in rural and urban novels and the conflict between the rural and urban cultures in novels are analyzed,and finally the fusion of the urban and rural relationship in the novels during this period is introduced.
文摘In recent years image fusion method has been used widely in different studies to improve spatial resolution of multispectral images. This study aims to fuse high resolution satellite imagery with low multispectral imagery in order to assist policymakers in the effective planning and management of urban forest ecosystem in Baton Rouge. To accomplish these objectives, Landsat 8 and PlanetScope satellite images were acquired from United States Geological Survey (USGS) Earth Explorer and Planet websites with pixel resolution of 30m and 3m respectively. The reference images (observed Landsat 8 and PlanetScope imagery) were acquired on 06/08/2020 and 11/19/2020. The image processing was performed in ArcMap and used 6-5-4 band combination for Landsat 8 to visually inspect healthy vegetation and the green spaces. The near-infrared (NIR) panchromatic band for PlanetScope was merged with Landsat 8 image using the Create Pan-Sharpened raster tool in ArcMap and applied the Intensity-Hue-Saturation (IHS) method. In addition, location of urban forestry parks in the study area was picked using the handheld GPS and recorded in an excel sheet. This sheet was converted into Excel (.csv) file and imported into ESRI ArcMap to identify the spatial distribution of the green spaces in East Baton Rouge parish. Results show fused images have better contrast and improve visualization of spatial features than non-fused images. For example, roads, trees, buildings appear sharper, easily discernible, and less pixelated compared to the Landsat 8 image in the fused image. The paper concludes by outlining policy recommendations in the form of sequential measurement of urban forest over time to help track changes and allows for better informed policy and decision making with respect to urban forest management.
文摘城市轨道交通起讫点(origin-destination,OD)客流短时预测在智能交通系统中意义重大,它为交通管控策略实施以及出行者出行选择提供了重要的决策依据。卷积神经网络被广泛用于交通数据空间相关性提取,但其平移不变性与局部敏感性导致该方法更重视局部特征而忽视全局特征。本研究构建了基于注意力机制的异构数据特征提取机模型(heterogeneous data feature extraction machine,HDFEM)以实现OD矩阵空间相关性的全局感知。该模型从时空特征和用地属性特征出发,构造异构数据OD时空张量与地理信息张量,依托模型张量编码层对异构数据张量进行分割与编码,通过注意力机制连接各张量块特征,提取OD矩阵中各个部分间的空间相关性。该方法不仅实现了异构数据与OD客流数据的融合,还兼顾了卷积神经网络模型未能处理的OD矩阵远距离特征,进而帮助模型更全面地学习OD客流的空间特征。对于OD时序特性,该模型使用了长短时记忆网络来处理。在杭州地铁自动售检票系统(auto fare collection,AFC)数据集上的实验结果表明:HDFEM模型相对于基于卷积神经网络的预测模型,其均方误差、平均绝对误差与标准均方根误差分别下降了4.1%,2.5%,2%,验证了全局OD特征感知对于城市轨道交通OD客流预测的重要性。
文摘文章探讨智慧城市与城市建筑设计的融合,通过分析智慧城市的定义和特征,围绕可持续发展、以用户体验为中心以及技术创新的原则,探讨新加坡的Marina Bay Sands、谷歌的Nest智能家居系统和迪拜的Burj Khalifa 3个智慧城市与城市建筑设计融合的实例。结果显示,智慧城市与城市建筑设计的融合能够促进城市的可持续发展,提升居民的生活体验和安全感。该融合是构建更高效、环保且人性化城市的关键步骤,对未来城市规划和建筑设计具有深远影响。
