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Constructing topology‐constrained distance cartograms with application on spatial interaction data 构建拓扑约束距离制图,并应用于空间交互数据
IF 2.4 3区 地球科学 Q2 Earth and Planetary Sciences Pub Date : 2024-05-14 DOI: 10.1111/tgis.13168
Tianyou Cheng, Hao Guo, Xiao‐Jian Chen, Quanhua Dong, Chaogui Kang, Yu Liu
A distance cartogram is a deformed map where the distance between points conforms to a specific proximity indicator. Its readability is crucial, requiring a similar spatial arrangement of points between the original map and cartogram. Previous studies mainly incorporated angle changes of point pairs into the optimization objective. However, this soft constraint fails to provide high readability for spatial interaction data with numerous points and links. This study emphasizes the significance of maintaining Delaunay triangulation during deformation. To achieve this, topology‐constrained particle swarm optimization (TC‐PSO) is proposed, in which triangle intersections and flipping are prevented during optimization. Additionally, a topology error is introduced to evaluate the difference in triangulation between the original and deformed maps. TC‐PSO outperforms previous approaches by exhibiting the smallest topology error and producing more readable cartograms in simulation experiments and Baidu index data. These show TC‐PSO's advantage as a cartographic tool.
距离制图是一种变形地图,其中各点之间的距离符合特定的近似指标。它的可读性至关重要,要求原始地图和制图之间的点的空间排列相似。以往的研究主要是将点对的角度变化纳入优化目标。然而,这种软约束无法为具有大量点和链接的空间交互数据提供高可读性。本研究强调了在变形过程中保持 Delaunay 三角剖分的重要性。为此,提出了拓扑约束粒子群优化(TC-PSO),在优化过程中防止三角形交叉和翻转。此外,还引入了拓扑误差来评估原始地图和变形地图之间的三角剖分差异。在模拟实验和百度指数数据中,TC-PSO 的拓扑误差最小,绘制的地图可读性更高,因此优于之前的方法。这些都显示了 TC-PSO 作为制图工具的优势。
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引用次数: 0
A geometry‐based method for visualizing time‐varying flow fields on web map platforms using texture polymorphism 利用纹理多态性在网络地图平台上可视化时变流场的几何方法
IF 2.4 3区 地球科学 Q2 Earth and Planetary Sciences Pub Date : 2024-05-14 DOI: 10.1111/tgis.13177
Yucheng Shu, Zihao Tang, Yiming Zhang, Yongning Wen, Min Chen, S. Yue
Global climate change has escalated flood risks, necessitating advanced hydrodynamic models for predicting watershed dynamics. Integrating flow‐field visualization with web maps offers a time‐sensitive, geographic context for sharing and understanding these dynamic changes virtually. Traditional methods use texture series on maps for flow visualization but fall short in interactive detail examination. Drawing geometric shapes directly on maps has been limited by low efficiency. Addressing the need for interactive visualization and efficiency, this study presents a texture polymorphism strategy for geometric visualization of time‐varying flow fields. This approach combines geometric style simulation with texture‐assisted computation, optimizing interactivity and performance on web map platforms. Our evaluation confirms that this method enhances usability and integration, ensuring high performance in visualizing flow dynamics.
全球气候变化加剧了洪水风险,因此需要先进的水动力模型来预测流域动态。将流场可视化与网络地图相结合,为虚拟共享和了解这些动态变化提供了具有时间敏感性的地理背景。传统方法在地图上使用纹理序列来实现流量可视化,但在交互式细节检查方面存在不足。直接在地图上绘制几何图形因效率低而受到限制。为了满足交互式可视化和效率的需求,本研究提出了一种纹理多态性策略,用于时变流场的几何可视化。这种方法将几何风格模拟与纹理辅助计算相结合,优化了网络地图平台的交互性和性能。我们的评估证实,这种方法提高了可用性和集成性,确保了流动动态可视化的高性能。
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引用次数: 0
Possibility and quality assessment in seafloor modeling relative to the sea surface using hybrid data 利用混合数据建立相对于海面的海底模型的可能性和质量评估
IF 2.4 3区 地球科学 Q2 Earth and Planetary Sciences Pub Date : 2024-05-13 DOI: 10.1111/tgis.13178
Idzikowska Magdalena, Pająk Katarzyna, Kowalczyk Kamil
The development of reliable seafloor topography models is a complex, multi‐track process, which is due to the diversity of available sets of data, their resolution, acquisition methods, complex seafloor forms, and the multitude of interpolation techniques. This article is aimed at assessing the suitability of different algorithms for seafloor modelling based on hybrid datasets (multi‐beam soundings and raster GEBCO models). The study involves the selection of optimum solutions as well as a comparative analysis of sea level change trends based on altimetric data. The study area relates to four forms of seafloor topography, namely the oceanic trench, the submarine canyon, the seamount region, and the undulating areas. The most reliable models were built by interpolating by the Kriging methods at a 0.01‐degree grid spacing. The smallest residues and the greatest correlation are found between models generated from all available sounding datasets. Raster GEBCO models can be an alternative in the additional model densification. The results show the following relationships: the greater the variation in the topography, the greater the divergence in the values of the sea level change trends. As for seamounts, hills, and folds, when the terrain rises rapidly, the trend values also increase and then decrease during the decline. Seafloor structure mapping enables the search for relationships between the seafloor topography and the changes occurring at the water surface.
开发可靠的海底地形模型是一个复杂的多轨过程,其原因在于可用数据集、数据分 辨率、采集方法、复杂的海底形态以及多种插值技术的多样性。本文旨在评估基于混合数据集(多波束探测数据和光栅 GEBCO 模型)的不同海底建模算法的适用性。研究包括选择最佳解决方案,以及对基于测高数据的海平面变化趋势进行比较分析。研究区域涉及四种形式的海底地形,即大洋海沟、海底峡谷、海山区域和起伏区域。通过克里格法以 0.01 度的网格间距进行插值,建立了最可靠的模型。所有可用探空数据集生成的模型之间的残差最小,相关性最大。栅格 GEBCO 模型可以作为额外模型密集化的一种替代方法。结果显示了以下关系:地形变化越大,海平面变化趋势值的差异就越大。至于海山、丘陵和褶皱,当地形快速上升时,趋势值也会增加,然后在下降过程中减少。绘制海底结构图可以寻找海底地形与水面变化之间的关系。
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引用次数: 0
Generating grid maps via the snake model 通过蛇形模型生成网格图
IF 2.4 3区 地球科学 Q2 Earth and Planetary Sciences Pub Date : 2024-05-13 DOI: 10.1111/tgis.13174
Zhiwei Wei, Nai Yang, Wenjia Xu, Ding Su
The grid map, often referred to as the tile map, stands as a vital tool in geospatial visualization, possessing unique attributes that differentiate it from more commonly known techniques such as choropleths and cartograms. It transforms geographic regions into grids, which requires the displacement of both region centroids and boundary nodes to establish a coherent grid arrangement. However, existing approaches typically displace region centroids and boundary nodes separately, potentially resulting in self‐intersected boundaries and compromised relative orientation relations between regions. In this article, we introduce a novel approach that leverages the Snake displacement algorithm from cartographic generalization to concurrently displace region centroids and boundary nodes. The revised constrained Delaunay triangulation (CDT) is employed to represent the relations between regions and serves as a structural foundation for the Snake algorithm. Forces for displacing the region centroids into a grid‐like pattern are then computed. These forces are iteratively applied within the Snake model until a satisfactory new boundary is achieved. Subsequently, the grid map is created by aligning the grids with the newly generated boundary, utilizing a one‐to‐one match algorithm to assign each region to a specific grid. Experimental results demonstrate that the proposed approach excels in maintaining the relative orientation and global shape of regions, albeit with a potential increase in local location deviations. We also present two strategies aligned with existing approaches to generate diverse grid maps for user preferences. Further details and resources are available on our project website: https://github.com/TrentonWei/DorlingMap.git.
网格图通常被称为瓦片图,是地理空间可视化的重要工具,它具有独特的属性,有别于更常见的矩形图和制图等技术。它将地理区域转化为网格,这就需要对区域中心点和边界节点进行位移,以建立连贯的网格排列。然而,现有的方法通常是将区域中心点和边界节点分别移位,可能会导致边界自交和区域间相对方位关系受损。在本文中,我们介绍了一种新方法,它利用制图泛化中的蛇位移算法,同时位移区域中心点和边界节点。修订后的约束德劳内三角剖分法(CDT)被用来表示区域之间的关系,并作为蛇形算法的结构基础。然后计算将区域中心点移入网格状模式的力。这些力在 Snake 模型中反复应用,直到获得令人满意的新边界为止。随后,将网格与新生成的边界对齐,创建网格图,利用一对一匹配算法将每个区域分配到特定网格。实验结果表明,尽管局部位置偏差可能会增加,但所提出的方法在保持区域的相对方向和整体形状方面表现出色。我们还提出了两种与现有方法相匹配的策略,以根据用户偏好生成不同的网格图。更多详情和资源请访问我们的项目网站:https://github.com/TrentonWei/DorlingMap.git。
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引用次数: 0
A general modeling scheme for spatiotemporal DGGS with emphasis on encoding and operating multiscale time grids 时空 DGGS 的一般建模方案,重点是多尺度时间网格的编码和运行
IF 2.4 3区 地球科学 Q2 Earth and Planetary Sciences Pub Date : 2024-05-13 DOI: 10.1111/tgis.13173
Jianbin Zhou, Jin Ben, Qishuang Liang, Xinhai Huang, Junjie Ding
One of the basic scientific problems concerning geographic information science is how to rapidly organize, query, and compute spatiotemporal big data. The spatiotemporal discrete global grid system (DGGS) provides a homogenized discrete structure for processing multiscale and multitype spatiotemporal data. To date, most research in spatiotemporal DGGS has focused on spatial discretization while neglecting temporal discretization. Here, we propose a general modeling scheme for spatiotemporal DGGS with emphasis on encoding and operating multiscale time grids. We subdivide continuous time into multiscale temporal grids, which are then encoded as integers. Moreover, we designed integer code operations, including hierarchical traversal, neighborhood finding, and temporal relationship calculations. Compared to the multiscale time segment integer coding (MTSIC) approach, the proposed method resulted in 22% higher encoding efficiency, 10.92 times faster decoding, 2.81 times better parent code finding efficiency, 41% improved efficiency, 100% accuracy in finding children codes (compared to less than 100% with MTSIC), and a 62% enhancement in temporal relationship calculation efficiency. The application of querying spatiotemporal trajectory data validates the feasibility and practicality of substituting conventional string‐based time and floating‐point location coordinates with spatiotemporal integer codes to query data. The time encoding and operation methods proposed here indicate high efficiency, superior accuracy, and broad application prospects.
地理信息科学的基本科学问题之一是如何快速组织、查询和计算时空大数据。时空离散全球网格系统(DGGS)为处理多尺度、多类型的时空数据提供了同质化的离散结构。迄今为止,时空离散全球网格系统的研究大多侧重于空间离散化,而忽视了时间离散化。在这里,我们提出了时空 DGGS 的一般建模方案,重点是多尺度时间网格的编码和操作。我们将连续时间细分为多尺度时间网格,然后将其编码为整数。此外,我们还设计了整数编码操作,包括分层遍历、邻域查找和时间关系计算。与多尺度时间片段整数编码(MTSIC)方法相比,所提出的方法编码效率提高了 22%,解码速度提高了 10.92 倍,寻找父码的效率提高了 2.81 倍,效率提高了 41%,寻找子码的准确率达到 100%(而 MTSIC 的准确率不到 100%),时空关系计算效率提高了 62%。时空轨迹数据的查询应用验证了用时空整数代码代替传统的基于字符串的时间和浮点位置坐标来查询数据的可行性和实用性。本文提出的时间编码和运算方法效率高、精度高,具有广阔的应用前景。
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引用次数: 0
An analysis of qualifications and requirements for geographic information systems (GIS) positions in the United States 美国地理信息系统(GIS)职位的资格和要求分析
IF 2.4 3区 地球科学 Q2 Earth and Planetary Sciences Pub Date : 2024-05-10 DOI: 10.1111/tgis.13176
Christopher A. Ramezan, Aaron E. Maxwell, Joshua T. Meadows
As the demand for geospatial analytics continues to grow, geographic information systems (GIS) professionals are needed to build, operate, and maintain GIS technologies, data, and software to provide geospatial insights for modern industries and organizations. To best train the next generation of GIS professionals, an understanding of qualifications and requirements of GIS positions is needed. Thus, this work analyzes 508 GIS positions, grouped by position type (analysts, developers, educators, managers, specialists, technicians) to provide insights on key pre‐requisite requirements, such as education, experience, certifications, soft communication skills, programming skills, and knowledge of GIS or IT. In general, possession of a bachelor's degree in GIS, geography, or computer science, prior professional experience, and knowledge of GIS and IT software were common pre‐requisites for most GIS roles. Soft communication skills were also frequently desired for GIS roles. We also found that some position requirements tended to vary by position type, such as manager and developer roles requiring on average 5 years or higher prior experience, while analyst, specialist, and technician roles had much lower experience and education requirements. Higher education institutions and GIS training programs should note the desired requirements for GIS position types and continue to refine programs and develop pathways for success for aspiring GIS professionals.
随着地理空间分析需求的不断增长,需要地理信息系统 (GIS) 专业人员来构建、操作和维护 GIS 技术、数据和软件,为现代行业和组织提供地理空间见解。为了最好地培训下一代 GIS 专业人员,需要了解 GIS 职位的资格和要求。因此,这项工作分析了 508 个 GIS 职位,并按职位类型(分析师、开发人员、教育工作者、管理人员、专家、技术人员)进行分组,以深入了解关键的先决条件要求,如教育、经验、认证、软性沟通技能、编程技能以及 GIS 或 IT 知识。一般来说,拥有 GIS、地理或计算机科学学士学位、先前的专业经验以及 GIS 和 IT 软件知识是大多数 GIS 职位的共同前提条件。软性沟通技能也是 GIS 职位经常需要的。我们还发现,一些职位的要求往往因职位类型而异,如经理和开发人员职位平均需要 5 年或以上的工作经验,而分析员、专家和技术员职位对工作经验和教育程度的要求要低得多。高等教育机构和 GIS 培训项目应注意 GIS 职位类型的理想要求,并继续完善项目,为有抱负的 GIS 专业人员开发成功之路。
{"title":"An analysis of qualifications and requirements for geographic information systems (GIS) positions in the United States","authors":"Christopher A. Ramezan, Aaron E. Maxwell, Joshua T. Meadows","doi":"10.1111/tgis.13176","DOIUrl":"https://doi.org/10.1111/tgis.13176","url":null,"abstract":"As the demand for geospatial analytics continues to grow, geographic information systems (GIS) professionals are needed to build, operate, and maintain GIS technologies, data, and software to provide geospatial insights for modern industries and organizations. To best train the next generation of GIS professionals, an understanding of qualifications and requirements of GIS positions is needed. Thus, this work analyzes 508 GIS positions, grouped by position type (analysts, developers, educators, managers, specialists, technicians) to provide insights on key pre‐requisite requirements, such as education, experience, certifications, soft communication skills, programming skills, and knowledge of GIS or IT. In general, possession of a bachelor's degree in GIS, geography, or computer science, prior professional experience, and knowledge of GIS and IT software were common pre‐requisites for most GIS roles. Soft communication skills were also frequently desired for GIS roles. We also found that some position requirements tended to vary by position type, such as manager and developer roles requiring on average 5 years or higher prior experience, while analyst, specialist, and technician roles had much lower experience and education requirements. Higher education institutions and GIS training programs should note the desired requirements for GIS position types and continue to refine programs and develop pathways for success for aspiring GIS professionals.","PeriodicalId":47842,"journal":{"name":"Transactions in GIS","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140940014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Market area analysis with a focus on the spatial relationship between sites and their visitors 市场区域分析,重点关注景点及其游客之间的空间关系
IF 2.4 3区 地球科学 Q2 Earth and Planetary Sciences Pub Date : 2024-05-10 DOI: 10.1111/tgis.13167
Yukio Sadahiro, Hidetaka Matsumoto
This article proposes a new approach to market area analysis. Market area analysis is conducted in various academic fields, such as retail geography, marketing science, transportation science, and tourism study. It aims to understand the factors that affect visitors' choice behavior, which improves the performance of various sites, such as stores, restaurants, museums, and stadiums. Methods for market area analysis, however, have not been fully developed in the literature. To fill the research gap, this article proposes new methods of market area analysis. The first method considers the relationship between a site and its visitors. Our focus is on the spatial pattern of visitors around a site. The second method discusses the spatial relationship between the visitors of two sites. We evaluate the competing relationship between different sites. We applied the methods to the analysis of mountain climbers in Japan. The results gave us useful and interesting empirical findings, indicating the method's soundness.
本文提出了一种新的市场区域分析方法。市场区域分析在零售地理、营销科学、交通科学和旅游研究等多个学术领域都有开展。其目的是了解影响游客选择行为的因素,从而提高商店、餐厅、博物馆和体育场馆等各种场所的绩效。然而,市场区域分析方法在文献中尚未得到充分发展。为填补研究空白,本文提出了新的市场区域分析方法。第一种方法考虑的是景点与游客之间的关系。我们的重点是景点周围游客的空间模式。第二种方法讨论两个网站游客之间的空间关系。我们评估不同网站之间的竞争关系。我们将这些方法应用于对日本登山者的分析。结果为我们提供了有用而有趣的经验发现,表明了该方法的合理性。
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引用次数: 0
Flood susceptibility modeling by integrating tree‐based regression with metaheuristic algorithm, BWO 通过将基于树的回归与元搜索算法相结合建立洪水易感性模型,BWO
IF 2.4 3区 地球科学 Q2 Earth and Planetary Sciences Pub Date : 2024-05-08 DOI: 10.1111/tgis.13171
Deba Prakash Satapathy, Bibhu Prasad Mishra
Floods are becoming more widely acknowledged as a common occurrence of nature's dangers on a global scale. Although forecasting models primarily focus on timely warnings, models aimed at evaluating dangerous zones can play a vital role in shaping policies for adaptation, mitigation, and reducing the risk of disasters. Using machine learning techniques including hybrid black widow optimization (BWO) with XGBoost, LGBoost, and AdaBoost. We generate a flood susceptibility map for considered region of lower mahanadi basin (LMB). This study examines the effectiveness of these machine learning models in assessing and mapping flood susceptibility, while also providing suggestions for future research in this area. Flood susceptibility model was developed using 13 variables: Altitude, Aspect, Curvature, Distance from river, Drainage Density, Stream Power Index (SPI), Sediment Transport Index (STI), Rainfall intensity, Land Use Land Cover (LULC), Topographic Wetness Index (TWI), Terrain Roughness Index (TRI), Normalized Difference Vegetation Index (NDVI), and slope. Additionally, flood inventory data were incorporated into the model. Dataset was divided into a 70% portion for training model and a 30% portion for validating model. To assess the performance of the model, several evaluation metrics were employed, including receiver operating characteristic (ROC) curve and other performance indices. Evaluation of flood susceptibility mapping, using ROC curve method in combination with flood density yielded strong and reliable results for various models. BWO‐XGBoost achieved a score of 0.889, BWO‐LGBoost achieved a score of 0.937, and BWO‐ADABoost achieved a score of 0.904. These scores indicate effectiveness of these models in accurately predicting flood susceptibility in the study area. A comparison was made with commonly used methods in flood susceptibility assessment to evaluate the efficiency of proposed models. It was found that having a first‐class and enlightening database is crucial for accurately classifying flood types in flood susceptibility mapping. This aspect greatly contributes to improving the overall performance of the model. Among the evaluated methods, the hybrid model BWO‐LGBoost demonstrated better performance compared with others, indicating its effectiveness in accurately predicting flood susceptibility.
人们越来越普遍地认识到,洪水是全球范围内常见的自然灾害。虽然预报模型主要侧重于及时预警,但旨在评估危险区域的模型可在制定适应、缓解和降低灾害风险的政策方面发挥重要作用。利用机器学习技术,包括混合黑寡妇优化(BWO)与 XGBoost、LGBoost 和 AdaBoost。我们生成了下马哈纳迪盆地(LMB)考虑区域的洪水易感性地图。本研究检验了这些机器学习模型在评估和绘制洪水易感性地图方面的有效性,同时也为该领域的未来研究提供了建议。洪水易感性模型是利用 13 个变量建立的:这些变量包括:海拔高度(Altitude)、坡度(Aspect)、曲率(Curvature)、与河流的距离(Distance from river)、排水密度(Drainage Density)、溪流动力指数(SPI)、沉积物迁移指数(STI)、降雨强度(Rainfall intensity)、土地利用土地覆盖(LULC)、地形湿润指数(TWI)、地形粗糙度指数(TRI)、归一化植被指数(NDVI)和坡度。此外,模型还纳入了洪水清单数据。数据集分为 70% 用于训练模型,30% 用于验证模型。为了评估模型的性能,采用了一些评估指标,包括接收者操作特征曲线(ROC)和其他性能指标。使用 ROC 曲线法结合洪水密度对洪水易感性绘图进行评估,各种模型都得出了可靠的结果。BWO-XGBoost 的得分为 0.889,BWO-LGBoost 的得分为 0.937,BWO-ADABoost 的得分为 0.904。这些得分表明,这些模型在准确预测研究区域洪水易感性方面非常有效。为了评估所提出模型的效率,我们将其与洪水易感性评估中常用的方法进行了比较。研究发现,在绘制洪水易发性地图时,拥有一流且具有启发性的数据库对于准确划分洪水类型至关重要。这在很大程度上有助于提高模型的整体性能。在所评估的方法中,BWO-LGBoost 混合模型与其他方法相比表现出更好的性能,表明其在准确预测洪水易感性方面的有效性。
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引用次数: 0
Unraveling the relationship between coastal landscapes and sentiments: An integrated approach based on social media data and interpretable machine learning methods 揭示海岸景观与情感之间的关系:基于社交媒体数据和可解释机器学习方法的综合方法
IF 2.4 3区 地球科学 Q2 Earth and Planetary Sciences Pub Date : 2024-05-08 DOI: 10.1111/tgis.13175
Haojie Cao, Min Weng, Mengjun Kang, Shiliang Su
Coastal landscapes exert a significant impact on the human sentimental perceptions and physical and mental well‐being of people. However, little is known about explicitly linking between the landscape characteristics and people's sentimental preferences expressed in social media data. The main objective of this study was to explore the nonlinear and interaction effects of key factors that influenced sentiments in the coastal areas of Hong Kong, considering both subjective landscape preferences and objective landscape patterns. We quantified users' sentiment polarity based on the crowdsourcing textual data of Flickr. To study users' subjective landscape preferences, we computed various visual landscape objects' proportion in images. Meanwhile, eight user clusters and nine image clusters were detected by the identified visual object labels. We quantified objective landscape patterns considering the land use pattens and the availability of public service facilities. Finally, we utilized an interpretable classification model to analyze the factors that may affect sentiments and their interplay interactions. We found that ecotourism‐related clusters exhibited the most positive sentiment. The proportion of floor and sky pixels in images exhibits the highest global relative importance when predicting sentiments. This study extends a new insight on the relationship between landscape characteristics and sentiments from both subjective and objective perspectives based on social media data and interpretable machine learning methods. This research may help decision‐makers in designing landscapes that aptly satisfy to the needs of the public and promote sustainable management of the coastal environment.
沿海景观对人类的情感认知和身心健康有着重要影响。然而,人们对景观特征与人们在社交媒体数据中表达的情感偏好之间的明确联系知之甚少。本研究的主要目的是在考虑主观景观偏好和客观景观模式的基础上,探索影响香港沿海地区情感的关键因素的非线性效应和交互效应。我们基于 Flickr 的众包文本数据量化了用户的情感极性。为了研究用户的主观景观偏好,我们计算了各种视觉景观对象在图像中的比例。同时,通过识别出的视觉对象标签,检测出 8 个用户聚类和 9 个图像聚类。考虑到土地使用模式和公共服务设施的可用性,我们对客观景观模式进行了量化。最后,我们利用可解释的分类模型分析了可能影响情感的因素及其相互作用。我们发现,与生态旅游相关的集群表现出最积极的情感。在预测情感时,地面和天空像素在图像中的比例具有最高的全局相对重要性。这项研究基于社交媒体数据和可解释的机器学习方法,从主观和客观两个角度对景观特征与情感之间的关系提出了新的见解。这项研究可以帮助决策者设计满足公众需求的景观,促进沿海环境的可持续管理。
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引用次数: 0
Urban perception by using eye movement data on street view images 利用街景图像上的眼动数据感知城市
IF 2.4 3区 地球科学 Q2 Earth and Planetary Sciences Pub Date : 2024-05-06 DOI: 10.1111/tgis.13172
Nai Yang, Zhitao Deng, Fangtai Hu, Yi Chao, Lin Wan, Qingfeng Guan, Zhiwei Wei
Understanding the spatial distribution patterns of urban perception and analyzing the correlation between human emotional perception and street composition elements are important for accurately understanding how people interact with the urban environment, urban planning, and urban management. Previous studies on urban perception using street view data have not fully considered the actual level of attention to different visual elements when browsing street view images. In this article, we use eye tracking technology to collect eye movement data and subjective perception evaluation data when people browse street view images, and analyze the correlation between the time to first fixation, duration of first fixation, and fixation frequency of different visual elements and the six perceptual outcomes of wealthy, safe, lively, beautiful, boring, and depressing. Furthermore, this article integrates eye movement data with street view semantic data and introduces a novel method for predicting urban perception using a machine learning algorithm. The proposed method outperforms a comparative model that solely relies on semantic data, exhibiting higher accuracy in perception prediction. Additionally, the study presents a perceptual mapping of the prediction results, providing a visual representation of the predicted urban perception outcomes. As vision is the primary perceptual channel, this study achieves a more objective and scientifically reliable urban perception, which is of reference value for the study of physical and mental health due to the urban physical environment.
了解城市感知的空间分布模式,分析人类情感感知与街道构成要素之间的相关性,对于准确理解人与城市环境的互动方式、城市规划和城市管理非常重要。以往利用街景数据进行的城市感知研究并未充分考虑人们在浏览街景图像时对不同视觉元素的实际关注程度。本文利用眼动跟踪技术收集了人们浏览街景图像时的眼动数据和主观感知评价数据,分析了不同视觉元素的首次固定时间、首次固定持续时间和固定频率与富裕、安全、热闹、美丽、无聊和压抑六种感知结果之间的相关性。此外,本文还整合了眼动数据和街景语义数据,并介绍了一种利用机器学习算法预测城市感知的新方法。所提出的方法优于仅依赖语义数据的比较模型,在感知预测方面表现出更高的准确性。此外,该研究还提出了预测结果的感知映射,为预测的城市感知结果提供了视觉呈现。由于视觉是主要的感知渠道,本研究实现了更客观、更科学可靠的城市感知,对研究城市物理环境导致的身心健康具有参考价值。
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引用次数: 0
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