首页 > 最新文献

AGILE: GIScience Series最新文献

英文 中文
Land use influence on ambient PM2.5 and ammonia concentrations: Correlation analyses in the Lombardy region, Italy 土地利用对环境PM2.5和氨浓度的影响:意大利伦巴第地区的相关分析
Pub Date : 2023-06-06 DOI: 10.5194/agile-giss-4-26-2023
L. Gianquintieri, D. Oxoli, E. Caiani, M. Brovelli
Abstract. Air pollution is identified as the primary environmental risk to health worldwide. Although most of the anthropic emissions are due to combustion processes, intensive farming activities may also contribute significantly, especially as a source of particulate matter 2.5 and ammonia. Investigations on particulate matter and precursors dynamics, identifying the most relevant environmental factors influencing their emissions, are critical to improving local and regional air quality policies. This work presents an analysis of the correlation between particulate matter 2.5 and ammonia concentrations, obtained from the Copernicus Atmosphere Monitoring Service, and local land use characteristics, to investigate the influence of agricultural activities on the space-time pollutant concentration patterns. The selected study area is the Lombardy region, northern Italy. Correlation is evaluated through Spearman’s coefficient. Agricultural areas resulted in a significant factor for high ammonia concentrations, while particulate matter 2.5 was strongly correlated with built-up areas. Natural areas resulted instead a protective factor for both pollutants. Results provide data-driven evidence of the land use effect on air quality, also quantifying such effects in terms of correlation coefficients magnitude.
摘要在世界范围内,空气污染被确定为对健康的主要环境风险。虽然大多数人为排放是由于燃烧过程,但集约化农业活动也可能产生重大影响,特别是作为颗粒物质2.5和氨的来源。对微粒物质和前体动态进行调查,查明影响其排放的最相关环境因素,对于改善地方和区域空气质量政策至关重要。本文通过分析哥白尼大气监测服务获得的颗粒物2.5和氨浓度与当地土地利用特征的相关性,探讨农业活动对时空污染物浓度格局的影响。选定的研究区域是意大利北部的伦巴第地区。通过斯皮尔曼系数来评估相关性。农业地区是导致高氨浓度的重要因素,而颗粒物2.5与建成区密切相关。自然区域反而对这两种污染物起到了保护作用。结果为土地利用对空气质量的影响提供了数据驱动的证据,并根据相关系数的大小对这种影响进行了量化。
{"title":"Land use influence on ambient PM2.5 and ammonia concentrations: Correlation analyses in the Lombardy region, Italy","authors":"L. Gianquintieri, D. Oxoli, E. Caiani, M. Brovelli","doi":"10.5194/agile-giss-4-26-2023","DOIUrl":"https://doi.org/10.5194/agile-giss-4-26-2023","url":null,"abstract":"Abstract. Air pollution is identified as the primary environmental risk to health worldwide. Although most of the anthropic emissions are due to combustion processes, intensive farming activities may also contribute significantly, especially as a source of particulate matter 2.5 and ammonia. Investigations on particulate matter and precursors dynamics, identifying the most relevant environmental factors influencing their emissions, are critical to improving local and regional air quality policies. This work presents an analysis of the correlation between particulate matter 2.5 and ammonia concentrations, obtained from the Copernicus Atmosphere Monitoring Service, and local land use characteristics, to investigate the influence of agricultural activities on the space-time pollutant concentration patterns. The selected study area is the Lombardy region, northern Italy. Correlation is evaluated through Spearman’s coefficient. Agricultural areas resulted in a significant factor for high ammonia concentrations, while particulate matter 2.5 was strongly correlated with built-up areas. Natural areas resulted instead a protective factor for both pollutants. Results provide data-driven evidence of the land use effect on air quality, also quantifying such effects in terms of correlation coefficients magnitude.\u0000","PeriodicalId":116168,"journal":{"name":"AGILE: GIScience Series","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131862093","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
An investigation of the effects of lockdowns and COVID-19 vaccinations in Ireland 对爱尔兰封锁和COVID-19疫苗接种效果的调查
Pub Date : 2023-06-06 DOI: 10.5194/agile-giss-4-37-2023
Niloufar Pourshir Sefidi, Amin Shoari Nejad, P. Mooney
Abstract. The COVID-19 pandemic resulted in many deaths and much upheaval worldwide. Public health responses to the pandemic differed greatly between countries. In 2023, as we emerge from the aftermath of the pandemic, it is now timely to assess the impact of specific public health response measures such as lockdowns and vaccinations. This assessment can help inform the development of evidence-based strategies for future public health responses in pandemic scenarios. We describe the implementation of a Bayesian Hierarchical Poisson Regression (BHPR) model to estimate the impact of pandemic response measures and vaccination on all-cause deaths, including COVID-19, in Ireland. We find that the implementation of lockdown measures and an appropriate vaccination timeline were effective in reducing the number of deaths in Ireland by, most likely, reducing the COVID- 19 mortality rate. We believe our approach could be used to assess the impact of pandemic response measures and vaccination in other countries as well where similar data is available.
摘要2019冠状病毒病大流行导致全球许多人死亡和动荡。各国对大流行的公共卫生反应差异很大。2023年,随着我们从大流行的余波中走出来,现在是时候评估封锁和疫苗接种等具体公共卫生应对措施的影响了。这一评估有助于为未来大流行情景下的公共卫生应对提供循证战略。我们描述了贝叶斯层次泊松回归(BHPR)模型的实施,以估计大流行应对措施和疫苗接种对爱尔兰全因死亡(包括COVID-19)的影响。我们发现,实施封锁措施和适当的疫苗接种时间表有效地减少了爱尔兰的死亡人数,很可能降低了COVID- 19的死亡率。我们认为,我们的方法可用于评估其他国家的大流行应对措施和疫苗接种的影响,以及可获得类似数据的国家。
{"title":"An investigation of the effects of lockdowns and COVID-19 vaccinations in Ireland","authors":"Niloufar Pourshir Sefidi, Amin Shoari Nejad, P. Mooney","doi":"10.5194/agile-giss-4-37-2023","DOIUrl":"https://doi.org/10.5194/agile-giss-4-37-2023","url":null,"abstract":"Abstract. The COVID-19 pandemic resulted in many deaths and much upheaval worldwide. Public health responses to the pandemic differed greatly between countries. In 2023, as we emerge from the aftermath of the pandemic, it is now timely to assess the impact of specific public health response measures such as lockdowns and vaccinations. This assessment can help inform the development of evidence-based strategies for future public health responses in pandemic scenarios. We describe the implementation of a Bayesian Hierarchical Poisson Regression (BHPR) model to estimate the impact of pandemic response measures and vaccination on all-cause deaths, including COVID-19, in Ireland. We find that the implementation of lockdown measures and an appropriate vaccination timeline were effective in reducing the number of deaths in Ireland by, most likely, reducing the COVID- 19 mortality rate. We believe our approach could be used to assess the impact of pandemic response measures and vaccination in other countries as well where similar data is available.\u0000","PeriodicalId":116168,"journal":{"name":"AGILE: GIScience Series","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121471629","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
Detection of small-scale landscape elements with remote sensing 小尺度景观要素的遥感检测
Pub Date : 2023-06-06 DOI: 10.5194/agile-giss-4-34-2023
Nikita Murin, A. Kmoch, E. Uuemaa
Abstract. Landscape elements located on agricultural fields or on their edges play a crucial role in the biodiversity of agricultural land. The landscape elements’ database in Estonia is updated in accordance with the applications of the field owners, and usually it does not represent a real situation of the landscape elements on the field. Hence, the analysis and control over landscape elements are limited. The main aim of this study is to create a methodology to map landscape elements in Estonia with remote sensing data. The first method was created considering the importance of computational efficiency and therefore fast and non-complex map algebra solution was developed. The second, more precise but more computationally expensive way to map landscape elements, was the object-based image analysis method utilizing machine learning classification. Both methods displayed high overall accuracies, but users’ and producers’ accuracies were lower. Taking into account the computational time and accuracy, it was concluded that the map algebra method is better suitable for fast landscape elements’ detection. However, the object-based image analysis method is more suitable for identifying more exact classes of landscape elements.
摘要位于农田或农田边缘的景观要素对农业用地的生物多样性起着至关重要的作用。爱沙尼亚的景观要素数据库是根据场地所有者的申请进行更新的,通常它并不代表场地上景观要素的真实情况。因此,对景观要素的分析和控制是有限的。这项研究的主要目的是建立一种利用遥感数据绘制爱沙尼亚景观要素的方法。第一种方法是考虑到计算效率的重要性,从而开发出快速且不复杂的映射代数解。第二种更精确但计算成本更高的方法是利用机器学习分类的基于对象的图像分析方法。两种方法均显示出较高的总体准确性,但用户和生产者的准确性较低。考虑到计算时间和精度,地图代数方法更适合于快速的景观要素检测。然而,基于对象的图像分析方法更适合于识别更精确的景观元素类别。
{"title":"Detection of small-scale landscape elements with remote sensing","authors":"Nikita Murin, A. Kmoch, E. Uuemaa","doi":"10.5194/agile-giss-4-34-2023","DOIUrl":"https://doi.org/10.5194/agile-giss-4-34-2023","url":null,"abstract":"Abstract. Landscape elements located on agricultural fields or on their edges play a crucial role in the biodiversity of agricultural land. The landscape elements’ database in Estonia is updated in accordance with the applications of the field owners, and usually it does not represent a real situation of the landscape elements on the field. Hence, the analysis and control over landscape elements are limited. The main aim of this study is to create a methodology to map landscape elements in Estonia with remote sensing data. The first method was created considering the importance of computational efficiency and therefore fast and non-complex map algebra solution was developed. The second, more precise but more computationally expensive way to map landscape elements, was the object-based image analysis method utilizing machine learning classification. Both methods displayed high overall accuracies, but users’ and producers’ accuracies were lower. Taking into account the computational time and accuracy, it was concluded that the map algebra method is better suitable for fast landscape elements’ detection. However, the object-based image analysis method is more suitable for identifying more exact classes of landscape elements.\u0000","PeriodicalId":116168,"journal":{"name":"AGILE: GIScience Series","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114798666","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
Exploring MapSwipe as a Crowdsourcing Tool for (Rapid) Damage Assessment: The Case of the 2021 Haiti Earthquake 探索MapSwipe作为(快速)损害评估的众包工具:以2021年海地地震为例
Pub Date : 2023-06-06 DOI: 10.5194/agile-giss-4-5-2023
Simon Groß, B. Herfort, S. Marx, A. Zipf
Abstract. Fast and reliable geographic information is vital in disaster management. In the late 2000s, crowdsourcing emerged as a powerful method to provide this information. Base mapping through crowdsourcing is already well-established in relief workflows. However, crowdsourced post-disaster damage assessment is researched but not yet institutionalized. Based on MapSwipe, an established mobile application for crowdsourced base mapping, a damage assessment approach was developed and tested for a case study after the 2021 Haiti earthquake. First, MapSwipe’s damage mapping results are assessed for quality by using a reference dataset in regard to different aggregation methods. Then, the MapSwipe data was compared to an already established rapid damage assessment method by the Copernicus Emergency Management Service (CEMS). Crowdsourced building damage mapping achieved a maximum F1-score of 0.63 in comparison to the reference data set. MapSwipe and CEMS data showed only slight agreement with Cohen’s Kappa values reaching a maximum of 0.16. The results highlight the potential of crowdsourcing damage assessment as well as the importance for a scientific evaluation of the quality of CEMS data. Next steps for further integrating the presented workflow into MapSwipe are discussed.
摘要快速可靠的地理信息对灾害管理至关重要。在21世纪后期,众包成为提供这些信息的有力方法。通过众包绘制基地图在救灾工作流程中已经建立起来。然而,众包灾后损失评估虽有研究,但尚未制度化。基于已建立的众包基地测绘移动应用MapSwipe,开发了一种损害评估方法,并以2021年海地地震为例进行了测试。首先,使用参考数据集对不同聚合方法的MapSwipe损伤映射结果进行质量评估。然后,将MapSwipe数据与哥白尼应急管理服务(CEMS)已经建立的快速损害评估方法进行比较。与参考数据集相比,众包建筑损伤映射的最高f1得分为0.63。MapSwipe和CEMS数据与Cohen的Kappa值只有轻微的一致,最大值为0.16。研究结果强调了众包损害评估的潜力,以及科学评估CEMS数据质量的重要性。讨论了将所呈现的工作流进一步集成到MapSwipe中的后续步骤。
{"title":"Exploring MapSwipe as a Crowdsourcing Tool for (Rapid) Damage Assessment: The Case of the 2021 Haiti Earthquake","authors":"Simon Groß, B. Herfort, S. Marx, A. Zipf","doi":"10.5194/agile-giss-4-5-2023","DOIUrl":"https://doi.org/10.5194/agile-giss-4-5-2023","url":null,"abstract":"Abstract. Fast and reliable geographic information is vital in disaster management. In the late 2000s, crowdsourcing emerged as a powerful method to provide this information. Base mapping through crowdsourcing is already well-established in relief workflows. However, crowdsourced post-disaster damage assessment is researched but not yet institutionalized. Based on MapSwipe, an established mobile application for crowdsourced base mapping, a damage assessment approach was developed and tested for a case study after the 2021 Haiti earthquake. First, MapSwipe’s damage mapping results are assessed for quality by using a reference dataset in regard to different aggregation methods. Then, the MapSwipe data was compared to an already established rapid damage assessment method by the Copernicus Emergency Management Service (CEMS). Crowdsourced building damage mapping achieved a maximum F1-score of 0.63 in comparison to the reference data set. MapSwipe and CEMS data showed only slight agreement with Cohen’s Kappa values reaching a maximum of 0.16. The results highlight the potential of crowdsourcing damage assessment as well as the importance for a scientific evaluation of the quality of CEMS data. Next steps for further integrating the presented workflow into MapSwipe are discussed. \u0000","PeriodicalId":116168,"journal":{"name":"AGILE: GIScience Series","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133746921","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
Predicting Pedestrian Counts using Machine Learning 使用机器学习预测行人数量
Pub Date : 2023-06-06 DOI: 10.5194/agile-giss-4-18-2023
Molly Asher, Y. Oswald, N. Malleson
Abstract. The study of urban population dynamics has long been an important area of research. In particular, the ability to accurately predict the number of pedestrians in a place and time is critical for urban management, population health, crime, and for quantifying the impacts of public events. However, it can be extremely difficult to analyse the size and characteristics of the ambient population due to limited data availability and difficulties in capturing non-linear relationships between pedestrian counts and external factors. This paper reports on an ongoing project that is using machine learning techniques to: (i) better understand the impact that the built environment and other contextual factors, such as weather conditions, will have on the size of the pedestrian population during the day and; (ii) predict the number of pedestrians under different conditions. The case study area is the city of Melbourne, Australia, where abundant pedestrian count data exist. Early results demonstrate that, broadly, the model appears to perform sufficiently well to be useful, and that modelling errors are not consistent across space or time (some times/places are easier to predict than others).
摘要城市人口动态研究一直是一个重要的研究领域。特别是,准确预测一个地点和时间的行人数量的能力对于城市管理、人口健康、犯罪和量化公共事件的影响至关重要。然而,由于数据可用性有限,以及难以捕捉行人数量与外部因素之间的非线性关系,分析周围人口的规模和特征可能极其困难。本文报告了一个正在进行的项目,该项目使用机器学习技术:(i)更好地理解建筑环境和其他背景因素(如天气条件)在白天对行人数量的影响;(ii)预测不同情况下的行人数目。案例研究区域是澳大利亚的墨尔本,那里有丰富的行人计数数据。早期的结果表明,从广义上讲,模型似乎表现得足够好,可以使用,并且模型误差在空间或时间上并不一致(有些时间/地点比其他时间/地点更容易预测)。
{"title":"Predicting Pedestrian Counts using Machine Learning","authors":"Molly Asher, Y. Oswald, N. Malleson","doi":"10.5194/agile-giss-4-18-2023","DOIUrl":"https://doi.org/10.5194/agile-giss-4-18-2023","url":null,"abstract":"Abstract. The study of urban population dynamics has long been an important area of research. In particular, the ability to accurately predict the number of pedestrians in a place and time is critical for urban management, population health, crime, and for quantifying the impacts of public events. However, it can be extremely difficult to analyse the size and characteristics of the ambient population due to limited data availability and difficulties in capturing non-linear relationships between pedestrian counts and external factors. This paper reports on an ongoing project that is using machine learning techniques to: (i) better understand the impact that the built environment and other contextual factors, such as weather conditions, will have on the size of the pedestrian population during the day and; (ii) predict the number of pedestrians under different conditions. The case study area is the city of Melbourne, Australia, where abundant pedestrian count data exist. Early results demonstrate that, broadly, the model appears to perform sufficiently well to be useful, and that modelling errors are not consistent across space or time (some times/places are easier to predict than others).\u0000","PeriodicalId":116168,"journal":{"name":"AGILE: GIScience Series","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130457695","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
Developing capacitated p-median location-allocation model in the spopt library to allow UCL student teacher placements using public transport 在spopt图书馆开发有能力的p-中位数位置分配模型,允许UCL学生使用公共交通进行教师安置
Pub Date : 2023-06-06 DOI: 10.5194/agile-giss-4-20-2023
N. Bearman, Rongbo Xu, P. Roddy, James D. Gaboardi, Qunshan Zhao, Huanfa Chen, L. Wolf
Abstract. Location-allocation is a key tool within the GIS and network analysis toolbox. In this paper we discuss the real world application of a location-allocation case study (approx 800 students, 500 schools) from UCL using public transport. The use of public transportation is key for this case study, as many location-allocation approaches only make use of drive-time or walking-time distances, but the location of UCL in Greater London, UK makes the inclusion of public transport vital for this case study. The location-allocation is implemented as a capacitated p-median location-allocation model, using the spopt library, part of the Python Spatial Analysis Library (PySAL). The capacitated variation of the p-median location-allocation problem is a new addition to the spopt library, which this work will present. The results from the initial version of the capacitated p-median location-allocation problem has shown a marked improvement on public transport travel time, with public transport travel time reduced by 891 minutes overall for an initial sample of 93 students (9.58 minutes per student). Results will be presented below and plans for further improvement shared.
摘要位置分配是地理信息系统和网络分析工具箱中的一个关键工具。在本文中,我们讨论了一个地理位置分配案例研究的实际应用(大约800名学生,500所学校)从伦敦大学学院使用公共交通。公共交通的使用是本案例研究的关键,因为许多位置分配方法只利用开车时间或步行时间的距离,但伦敦大学学院在英国大伦敦的位置使得公共交通的纳入对本案例研究至关重要。位置分配是作为一个有容量的p中位数位置分配模型实现的,使用spopt库,Python空间分析库(PySAL)的一部分。p-中位数位置分配问题的容量变化是spopt库的一个新添加,本工作将介绍。初始版本的有能力p中位数位置分配问题的结果显示,公共交通出行时间有显著改善,在初始样本的93名学生中,公共交通出行时间总体减少了891分钟(每个学生9.58分钟)。结果将在下面展示,并分享进一步改进的计划。
{"title":"Developing capacitated p-median location-allocation model in the spopt library to allow UCL student teacher placements using public transport","authors":"N. Bearman, Rongbo Xu, P. Roddy, James D. Gaboardi, Qunshan Zhao, Huanfa Chen, L. Wolf","doi":"10.5194/agile-giss-4-20-2023","DOIUrl":"https://doi.org/10.5194/agile-giss-4-20-2023","url":null,"abstract":"Abstract. Location-allocation is a key tool within the GIS and network analysis toolbox. In this paper we discuss the real world application of a location-allocation case study (approx 800 students, 500 schools) from UCL using public transport. The use of public transportation is key for this case study, as many location-allocation approaches only make use of drive-time or walking-time distances, but the location of UCL in Greater London, UK makes the inclusion of public transport vital for this case study. The location-allocation is implemented as a capacitated p-median location-allocation model, using the spopt library, part of the Python Spatial Analysis Library (PySAL). The capacitated variation of the p-median location-allocation problem is a new addition to the spopt library, which this work will present. The results from the initial version of the capacitated p-median location-allocation problem has shown a marked improvement on public transport travel time, with public transport travel time reduced by 891 minutes overall for an initial sample of 93 students (9.58 minutes per student). Results will be presented below and plans for further improvement shared.\u0000","PeriodicalId":116168,"journal":{"name":"AGILE: GIScience Series","volume":"251 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132607535","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
Thinking Geographically about AI Sustainability 从地理角度思考人工智能的可持续性
Pub Date : 2023-06-06 DOI: 10.5194/agile-giss-4-42-2023
Meilin Shi, Kitty Currier, Zilong Liu, Krzysztof Janowicz, Nina Wiedemann, J. Verstegen, Grant McKenzie, A. Graser, Rui Zhu, Gengchen Mai
Abstract. Driven by foundation models, recent progress in AI and machine learning has reached unprecedented complexity. For instance, the GPT-3 language model consists of 175 billion parameters and a training-data size of 570 GB. While it has achieved remarkable performance in generating text that is difficult to distinguish from human-authored content, a single training of the model is estimated to produce over 550 metric tons of CO2 emissions. Likewise, we see advances in GeoAI research improving large-scale prediction tasks like satellite image classification and global climate modeling, to name but a couple. While these models have not yet reached comparable complexity and emissions levels, spatio-temporal models differ from language and image-generation models in several ways that make it necessary to (re)train them more often, with potentially large implications for sustainability. While recent work in the machine learning community has started calling for greener and more energy-efficient AI alongside improvements in model accuracy, this trend has not yet reached the GeoAI community at large. In this work, we bring this issue to not only the attention of the GeoAI community but also present ethical considerations from a geographic perspective that are missing from the broader, ongoing AI-sustainability discussion. To start this discussion, we propose a framework to evaluate models from several sustainability-related angles, including energy efficiency, carbon intensity, transparency, and social implications. We encourage future AI/GeoAI work to acknowledge its environmental impact as a step towards a more resource-conscious society. Similar to the current push for reproducibility, future publications should also report the energy/carbon costs of improvements over prior work.
摘要在基础模型的推动下,人工智能和机器学习的最新进展达到了前所未有的复杂性。例如,GPT-3语言模型由1750亿个参数和570 GB的训练数据组成。虽然它在生成难以与人类撰写的内容区分的文本方面取得了卓越的表现,但该模型的单次训练估计会产生超过550公吨的二氧化碳排放。同样,我们看到GeoAI研究的进步改善了大规模预测任务,如卫星图像分类和全球气候建模,仅举几例。虽然这些模型尚未达到可比较的复杂性和排放水平,但时空模型在若干方面与语言和图像生成模型不同,因此有必要更频繁地(重新)训练它们,这可能对可持续性产生重大影响。虽然机器学习社区最近的工作已经开始呼吁更环保、更节能的人工智能,同时提高模型的准确性,但这一趋势尚未在整个GeoAI社区推广。在这项工作中,我们不仅将这个问题引起了GeoAI社区的关注,而且还从地理角度提出了伦理考虑,这些考虑在更广泛、正在进行的人工智能可持续性讨论中缺失。为了展开讨论,我们提出了一个框架,从几个与可持续性相关的角度来评估模型,包括能源效率、碳强度、透明度和社会影响。我们鼓励未来的人工智能/地球人工智能工作承认其对环境的影响,这是迈向资源意识更强的社会的一步。与目前对可重复性的推动类似,未来的出版物也应报告改进以前工作的能源/碳成本。
{"title":"Thinking Geographically about AI Sustainability","authors":"Meilin Shi, Kitty Currier, Zilong Liu, Krzysztof Janowicz, Nina Wiedemann, J. Verstegen, Grant McKenzie, A. Graser, Rui Zhu, Gengchen Mai","doi":"10.5194/agile-giss-4-42-2023","DOIUrl":"https://doi.org/10.5194/agile-giss-4-42-2023","url":null,"abstract":"Abstract. Driven by foundation models, recent progress in AI and machine learning has reached unprecedented complexity. For instance, the GPT-3 language model consists of 175 billion parameters and a training-data size of 570 GB. While it has achieved remarkable performance in generating text that is difficult to distinguish from human-authored content, a single training of the model is estimated to produce over 550 metric tons of CO2 emissions. Likewise, we see advances in GeoAI research improving large-scale prediction tasks like satellite image classification and global climate modeling, to name but a couple. While these models have not yet reached comparable complexity and emissions levels, spatio-temporal models differ from language and image-generation models in several ways that make it necessary to (re)train them more often, with potentially large implications for sustainability. While recent work in the machine learning community has started calling for greener and more energy-efficient AI alongside improvements in model accuracy, this trend has not yet reached the GeoAI community at large. In this work, we bring this issue to not only the attention of the GeoAI community but also present ethical considerations from a geographic perspective that are missing from the broader, ongoing AI-sustainability discussion. To start this discussion, we propose a framework to evaluate models from several sustainability-related angles, including energy efficiency, carbon intensity, transparency, and social implications. We encourage future AI/GeoAI work to acknowledge its environmental impact as a step towards a more resource-conscious society. Similar to the current push for reproducibility, future publications should also report the energy/carbon costs of improvements over prior work.\u0000","PeriodicalId":116168,"journal":{"name":"AGILE: GIScience Series","volume":"436 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124253637","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
Indoor localisation and location tracking in indoor facilities based on LiDAR point clouds and images of the ceilings 基于激光雷达点云和天花板图像的室内设施定位和位置跟踪
Pub Date : 2023-06-06 DOI: 10.5194/agile-giss-4-4-2023
Ioannis Dardavesis, E. Verbree, A. Rafiee
Abstract. Localisation and navigation technologies have vastly evolved during the last years, facilitating users’ guidance in various environments. Unlike outdoor environments where GNSS comprises a universal solution, in indoor environments various localisation techniques have been used, each one with its drawbacks. Thus, this research investigates the reliability of the ceilings towards indoor localisation, by using components that are included in a simple mobile device. The choice of ceilings lies in their advantages, which include the incorporation of various characteristic components, as well as the absence of obstacles between them and the sensor. Indoor localisation is achieved based on LiDAR point clouds and images from RGB sensors of mobile devices. Additionally, this research involves location tracking of different users, to discover different movement patterns in an indoor facility. The proposed methodology revealed the robustness of the Coloured ICP algorithm for in-door localisation based on point clouds, both in terms of time efficiency and quality, while the combination of the SURF feature detector and SIFT descriptor provides the optimal indoor localisation results with image data. The proposed pipeline revealed encouraging results for use in emergencies, based on static data acquisition of a user, while it is also suitable for dynamic applications, in case a sensor is mounted on an automated device for indoor mapping operations. The captured point clouds of the ceilings can also be used as a reference to CAD and BIM models, to help the modelling of the existing utilities and their components in an indoor facility.
摘要在过去的几年里,定位和导航技术有了很大的发展,方便了用户在各种环境下的导航。与室外环境中GNSS包含通用解决方案不同,在室内环境中使用了各种定位技术,每种技术都有其缺点。因此,本研究通过使用包含在一个简单的移动设备中的组件来调查天花板对室内定位的可靠性。天花板的选择在于它们的优势,包括结合各种特征组件,以及它们和传感器之间没有障碍物。室内定位是基于激光雷达点云和来自移动设备RGB传感器的图像实现的。此外,本研究还涉及到不同用户的位置跟踪,以发现室内设施中不同的运动模式。所提出的方法揭示了基于点云的彩色ICP算法在时间效率和质量方面的鲁棒性,而SURF特征检测器和SIFT描述符的组合提供了图像数据的最佳室内定位结果。拟议的管道在紧急情况下显示了令人鼓舞的结果,基于用户的静态数据采集,同时它也适用于动态应用,如果传感器安装在室内测绘操作的自动化设备上。捕捉到的天花板点云也可以作为CAD和BIM模型的参考,以帮助室内设施中现有公用设施及其组件的建模。
{"title":"Indoor localisation and location tracking in indoor facilities based on LiDAR point clouds and images of the ceilings","authors":"Ioannis Dardavesis, E. Verbree, A. Rafiee","doi":"10.5194/agile-giss-4-4-2023","DOIUrl":"https://doi.org/10.5194/agile-giss-4-4-2023","url":null,"abstract":"Abstract. Localisation and navigation technologies have vastly evolved during the last years, facilitating users’ guidance in various environments. Unlike outdoor environments where GNSS comprises a universal solution, in indoor environments various localisation techniques have been used, each one with its drawbacks. Thus, this research investigates the reliability of the ceilings towards indoor localisation, by using components that are included in a simple mobile device. The choice of ceilings lies in their advantages, which include the incorporation of various characteristic components, as well as the absence of obstacles between them and the sensor. Indoor localisation is achieved based on LiDAR point clouds and images from RGB sensors of mobile devices. Additionally, this research involves location tracking of different users, to discover different movement patterns in an indoor facility. The proposed methodology revealed the robustness of the Coloured ICP algorithm for in-door localisation based on point clouds, both in terms of time efficiency and quality, while the combination of the SURF feature detector and SIFT descriptor provides the optimal indoor localisation results with image data. The proposed pipeline revealed encouraging results for use in emergencies, based on static data acquisition of a user, while it is also suitable for dynamic applications, in case a sensor is mounted on an automated device for indoor mapping operations. The captured point clouds of the ceilings can also be used as a reference to CAD and BIM models, to help the modelling of the existing utilities and their components in an indoor facility. \u0000","PeriodicalId":116168,"journal":{"name":"AGILE: GIScience Series","volume":"196 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129979602","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
Active teaching and learning in GI sciences: lessons learned from the BSc. Course Open Urban Data Governance 地理标志科学的积极教学:从理学学士获得的经验教训。课程开放城市数据治理
Pub Date : 2023-06-06 DOI: 10.5194/agile-giss-4-14-2023
B. Van Loenen, H. Ploeger, Noor van Everdingen, Kristian Cuervo, Jessica L. Monahan, Julia Pille, Carmel Verhaeghe
Abstract. A new active teaching and learning approach has been implemented in the BSc course Open Urban Data Governance.. This course is part of the minor Spatial Computing for Digital Twinning in the Bachelor of Architecture, Urbanism and Building Sciences at the Faculty of Architecture and The Built Environment, TU Delft, and offered TU wide as an elective. At the start of the course the students were tasked to collect and analyse noise level data, and to reflect on this process. In the second (main) assignment they had to develop an urban challenge to be answered with geo-data. Also here a reflection was required including an assessment of the FAIRness of the data. Both students and teachers highly appreciated the new approach. Through applying active teaching and learning we created an example of the theory on students’ activities. This approach also links students’ real world experiences to the content of the course, which allows them to put theory into context. Teachers especially appreciated the interaction with the students, the depth of the discussions, and were impressed by the steep learning curve of the students. Students enjoyed the freedom to operate, the frequent feedback sessions and the application of theory into practice. For the next year the lectures will take into account that ‘minor’ students do prepare well for their classes.
摘要在BSc课程开放城市数据治理中实施了一种新的主动教学方法。本课程是代尔夫特理工大学建筑与建筑环境学院建筑、城市规划与建筑科学学士学位的辅修课程《空间计算与数字孪生》的一部分,并作为选修课在全校开放。在课程开始时,学生们的任务是收集和分析噪音水平数据,并反思这一过程。在第二个(主要)任务中,他们必须开发一个城市挑战,并用地理数据来回答。这里还需要进行反思,包括对数据公平性的评估。学生和老师都高度赞赏这种新方法。通过运用主动教与主动学,开创了学生活动理论的典范。这种方法还将学生的现实世界经验与课程内容联系起来,使他们能够将理论融入背景中。老师们特别欣赏与学生的互动、深入的讨论,并对学生们陡峭的学习曲线印象深刻。学生们享受着操作的自由、频繁的反馈会议和理论到实践的应用。明年的讲座将考虑到“辅修”学生是否做好了备课准备。
{"title":"Active teaching and learning in GI sciences: lessons learned from the BSc. Course Open Urban Data Governance","authors":"B. Van Loenen, H. Ploeger, Noor van Everdingen, Kristian Cuervo, Jessica L. Monahan, Julia Pille, Carmel Verhaeghe","doi":"10.5194/agile-giss-4-14-2023","DOIUrl":"https://doi.org/10.5194/agile-giss-4-14-2023","url":null,"abstract":"Abstract. A new active teaching and learning approach has been implemented in the BSc course Open Urban Data Governance.. This course is part of the minor Spatial Computing for Digital Twinning in the Bachelor of Architecture, Urbanism and Building Sciences at the Faculty of Architecture and The Built Environment, TU Delft, and offered TU wide as an elective. At the start of the course the students were tasked to collect and analyse noise level data, and to reflect on this process. In the second (main) assignment they had to develop an urban challenge to be answered with geo-data. Also here a reflection was required including an assessment of the FAIRness of the data. Both students and teachers highly appreciated the new approach. Through applying active teaching and learning we created an example of the theory on students’ activities. This approach also links students’ real world experiences to the content of the course, which allows them to put theory into context. Teachers especially appreciated the interaction with the students, the depth of the discussions, and were impressed by the steep learning curve of the students. Students enjoyed the freedom to operate, the frequent feedback sessions and the application of theory into practice. For the next year the lectures will take into account that ‘minor’ students do prepare well for their classes.\u0000","PeriodicalId":116168,"journal":{"name":"AGILE: GIScience Series","volume":"120 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133286955","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
Using Machine Learning to drive social learning in a Covid-19 Agent-Based Model 在基于Covid-19代理的模型中使用机器学习推动社会学习
Pub Date : 2023-06-06 DOI: 10.5194/agile-giss-4-19-2023
E. Augustijn, Rosa Aguilar Bolivar, S. Abdulkareem
Abstract. Disease transmission and governmental interventions influence the spread of Covid-19. Models can be essential tools to optimise these governmental interventions. This requires the exploration of various ways to implement government agent behaviour. In Agent-Based Models (ABMs), government agent behaviour can be rule-based or data-driven, and the agent can be an isolated learner (using only its own data) or a social learner. We explore the creation of a data-driven social approach in which behaviour is based on a Machine Learning (ML) algorithm, and the government considers data from other European countries as input for their decision-making. Governmental actions start with risk perception, based on several parameters, e.g. the number of disease cases, deaths, and hospitalisation rate. The interventions are measured via the stringency index, measuring the simultaneous number of interventions (working from home, wearing a facemask, closing schools, etc.) taken. We test four machine learning algorithms (Bayesian Network (BN), c4.5, Naïve Bayes (NB) and Random Forest (RF)), using a 5-class and a 3-class classification of the stringency level. The algorithms are trained on disease data from many European countries. The best-performing algorithms were c4.5 and RF. The next step is to implement these algorithms into the ABM and evaluate the outcomes compared to the original model.
摘要疾病传播和政府干预影响Covid-19的传播。模型可以成为优化这些政府干预的重要工具。这就需要探索政府代理行为的多种实施方式。在基于代理的模型(ABMs)中,政府代理的行为可以是基于规则的或数据驱动的,代理可以是孤立的学习者(只使用自己的数据)或社会学习者。我们探索了一种数据驱动的社会方法的创建,其中行为基于机器学习(ML)算法,政府将来自其他欧洲国家的数据作为其决策的输入。政府的行动从认识风险开始,根据若干参数,例如疾病病例数、死亡人数和住院率。干预措施通过严密性指数进行衡量,衡量同时采取的干预措施(在家工作、戴口罩、关闭学校等)的数量。我们测试了四种机器学习算法(贝叶斯网络(BN), c4.5, Naïve贝叶斯(NB)和随机森林(RF)),使用5类和3类严格程度分类。这些算法是根据许多欧洲国家的疾病数据进行训练的。性能最好的算法是c4.5和RF。下一步是将这些算法实现到ABM中,并将结果与原始模型进行比较。
{"title":"Using Machine Learning to drive social learning in a Covid-19 Agent-Based Model","authors":"E. Augustijn, Rosa Aguilar Bolivar, S. Abdulkareem","doi":"10.5194/agile-giss-4-19-2023","DOIUrl":"https://doi.org/10.5194/agile-giss-4-19-2023","url":null,"abstract":"Abstract. Disease transmission and governmental interventions influence the spread of Covid-19. Models can be essential tools to optimise these governmental interventions. This requires the exploration of various ways to implement government agent behaviour. In Agent-Based Models (ABMs), government agent behaviour can be rule-based or data-driven, and the agent can be an isolated learner (using only its own data) or a social learner. We explore the creation of a data-driven social approach in which behaviour is based on a Machine Learning (ML) algorithm, and the government considers data from other European countries as input for their decision-making. Governmental actions start with risk perception, based on several parameters, e.g. the number of disease cases, deaths, and hospitalisation rate. The interventions are measured via the stringency index, measuring the simultaneous number of interventions (working from home, wearing a facemask, closing schools, etc.) taken. We test four machine learning algorithms (Bayesian Network (BN), c4.5, Naïve Bayes (NB) and Random Forest (RF)), using a 5-class and a 3-class classification of the stringency level. The algorithms are trained on disease data from many European countries. The best-performing algorithms were c4.5 and RF. The next step is to implement these algorithms into the ABM and evaluate the outcomes compared to the original model.\u0000","PeriodicalId":116168,"journal":{"name":"AGILE: GIScience Series","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128115896","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
期刊
AGILE: GIScience Series
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1