Journal of the Brazilian Computer Society最新文献_第4页

Usability evaluation model of an application with emphasis on collaborative security: an approach from social dimensions 一个强调协作安全的应用程序的可用性评估模型：一种来自社会维度的方法

Journal of the Brazilian Computer Society Pub Date : 2021-02-23 DOI: 10.1186/s13173-021-00108-8

Mateus de Oliveira, A. Mattedi, R. D. Seabra

引用次数: 1

A stochastic modeling approach for traffic analysis of a tramway system with virtual tags and local positioning 基于虚拟标签和局部定位的有轨电车系统交通分析随机建模方法

Journal of the Brazilian Computer Society Pub Date : 2021-02-12 DOI: 10.1186/s13173-021-00105-x

Leandro Dias da Silva, Paolo Lollini, Diamantea Mongelli, Andrea Bondavalli, Gianluca Mandò

{"title":"A stochastic modeling approach for traffic analysis of a tramway system with virtual tags and local positioning","authors":"Leandro Dias da Silva, Paolo Lollini, Diamantea Mongelli, Andrea Bondavalli, Gianluca Mandò","doi":"10.1186/s13173-021-00105-x","DOIUrl":"https://doi.org/10.1186/s13173-021-00105-x","url":null,"abstract":"Traditional solutions for tramway interlocking systems are based on physical sensors (balizes) distributed along the infrastructure which detect passing of the trams and trigger different actions, like the communications with the ground infrastructure and the interlocking system. This approach is not easily scalable and maintainable, and it is costly. The SISTER project designed new architectural solutions for addressing the previous problems based on the virtualization of the sensors and on the local positioning of each tram. The key idea is to trigger actions when the computed local position corresponds to a virtual tag. However, the computed position can be affected by errors, compared to the real one. Therefore, it is important to understand the impact of these new solutions on the traffic that can be supported by the tramway network. This paper presents a stochastic modeling approach for analysing the performability of a tramway system based on the SISTER architectural solutions, aiming to identify the parts of the tramway network that are more critical and sensible to the variation of the traffic conditions and to the setting of the key architectural parameters. We build a model using Stochastic Activity Networks and run sensitivity analyses on (i) the accuracy of the positioning, (ii) the different SISTER parameters, and (iii) considering possible outages temporarily blocking the journey of a tram. This analysis allows to properly set and fine-tune the key architectural parameters, to understand the impact of the accuracy on the positioning, to understand the impact of the outages.","PeriodicalId":39760,"journal":{"name":"Journal of the Brazilian Computer Society","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138514942","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

James Monteith: Cartographer, Educator, and Master of the Margins 詹姆斯·蒙蒂思:制图师、教育家和边缘大师

Journal of the Brazilian Computer Society Pub Date : 2021-02-08 DOI: 10.14714/CP97.1671

Andrew Rhodes

引用次数: 0

A blockchain-based service for inviolable presence registration of mobile entities 一种基于区块链的服务，用于移动实体的不可侵犯存在注册

Journal of the Brazilian Computer Society Pub Date : 2021-01-21 DOI: 10.1186/s13173-021-00104-y

Matheus Leal, Flávia Pisani, Markus Endler

引用次数: 6

Review of Women in American Cartography: An Invisible Social History 美国地图学中的女性:一段看不见的社会史

Journal of the Brazilian Computer Society Pub Date : 2021-01-09 DOI: 10.14714/CP97.1701

J. Johnson

引用次数: 1

Optimists' and pessimists' self-reported mental and global health during the COVID-19 pandemic in Norway. 挪威 COVID-19 大流行期间乐观主义者和悲观主义者自我报告的心理和全球健康状况。

IF 2

Journal of the Brazilian Computer Society Pub Date : 2021-01-05 eCollection Date: 2021-01-01 DOI: 10.5114/hpr.2021.102394

Inger Schou-Bredal, Tine Grimholt, Tore Bonsaksen, Laila Skogstad, Trond Heir, Øivind Ekeberg

{"title":"Optimists' and pessimists' self-reported mental and global health during the COVID-19 pandemic in Norway.","authors":"Inger Schou-Bredal, Tine Grimholt, Tore Bonsaksen, Laila Skogstad, Trond Heir, Øivind Ekeberg","doi":"10.5114/hpr.2021.102394","DOIUrl":"10.5114/hpr.2021.102394","url":null,"abstract":"Background: The COVID-19 pandemic represents a global health crisis. How well people cope with this situation depends on many factors, including one's personality, such as dispositional optimism. The aim of the study was to investigate: 1) optimists' and pessimists' concerns during lockdown, and mental and global health; 2) whether pessimists without known risk factors more often than optimists report being at risk for COVID-19.Participants and procedure: A snowball sampling strategy was used; 4,527 people, 18 years or older, participated in a survey on a variety of mental health conditions and COVID-19 worries. In addition, they completed the Life Orientation Test-Revised (LOT-R). Optimism was defined by LOT-R f ≥ 17.Results: Fewer optimists than pessimists reported that they were worried about COVID-19, respectively 51.2% vs. 66.8%, p < .001. Among those reporting none of the known somatic risk factors, more pessimists than optimists (14.3% vs. 9.1%, p < .001) considered themselves at risk of a fatal outcome from COVID-19. Significantly fewer optimists reported that they had anxiety (5.1%), depression (3.4%), suicidal ideation (0.7%) and insomnia (19.3%) during the COVID-19 outbreak than pessimists (24.7% anxiety, 18.4% depression, 5.4% suicidal ideation, 39.8% insomnia, all p < .001). Optimists reported better global health than pessimists (87.2 vs. 84.6, p < .001).Conclusions: Optimists were generally less worried about the COVID-19 pandemic than pessimists and reported better mental and global health during lockdown. Pessimists more often than optimists reported being at risk for COVID-19 without reporting known risk factors.","PeriodicalId":39760,"journal":{"name":"Journal of the Brazilian Computer Society","volume":"1 1","pages":"160-168"},"PeriodicalIF":2.0,"publicationDate":"2021-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10501414/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89215301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 17

Bending Lines: Maps and Data from Distortion to Deception 弯曲的线条:从扭曲到欺骗的地图和数据

Journal of the Brazilian Computer Society Pub Date : 2020-12-24 DOI: 10.14714/cp96.1689

Garrett Dash Nelson

引用次数: 3

Florence: a Web-based Grammar of Graphics for Making Maps and Learning Cartography 佛罗伦萨:用于制作地图和学习制图的基于网络的图形语法

Journal of the Brazilian Computer Society Pub Date : 2020-12-02 DOI: 10.14714/cp96.1645

A. Poorthuis, Lucas van der Zee, Grace Guo, Jo Hsi Keong, Bianchi Dy

引用次数: 4

User-centered Design and Evaluation of a Geovisualization Application Leveraging Aggregated QS Data 利用聚合QS数据的地理可视化应用程序的以用户为中心的设计和评估

Journal of the Brazilian Computer Society Pub Date : 2020-11-29 DOI: 10.14714/cp96.1631

J. Nelson, A. MacEachren

{"title":"User-centered Design and Evaluation of a Geovisualization Application Leveraging Aggregated QS Data","authors":"J. Nelson, A. MacEachren","doi":"10.14714/cp96.1631","DOIUrl":"https://doi.org/10.14714/cp96.1631","url":null,"abstract":"Individual movement traces recorded by users of activity tracking applications such as Strava provide opportunities that extend beyond delivering personal value or insight to the individual who engages in these “quantified-self ” (QS) activities. The large volumes of data generated by these individuals, when aggregated and anonymized, can be used by city planners, Departments of Transportation, advocacy groups, and researchers to help make cities safer and more efficient. This opportunity, however, is constrained by the technical skills and resources available to those tasked with assessing bicycling behavior in urban centers. This paper aims to address the question of how to design cartographic interfaces to serve as mediated platforms for making large amounts of individual bicycling data more accessible, usable, and actionable. Principles of cartographic representation, geovisual analytics techniques, and best practices in user interface/experience design are employed to arrive at an effective visualization tool for a broad urban planning audience. We use scenario-based design methods to encapsulate knowledge of map use practice gleaned from the development process, and conduct a post-implementation two-part user study with seven domain experts to further assess the usability and utility of the interactive mapping tool.","PeriodicalId":39760,"journal":{"name":"Journal of the Brazilian Computer Society","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48990917","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

Review of Mapping Indigenous Land: Native Land Grants in Colonial New Spain 土著土地测绘综述:新西班牙殖民地的土著土地授予

Journal of the Brazilian Computer Society Pub Date : 2020-11-16 DOI: 10.14714/cp97.1677

J. Seemann

引用次数: 0