Proceedings of the Brazilian Symposium on Multimedia and the Web最新文献_第7页

Point and Control it!: Using Computer Vision for Service Discovery to Control Smart Objects 瞄准并控制它!:使用计算机视觉进行服务发现以控制智能对象

Proceedings of the Brazilian Symposium on Multimedia and the Web Pub Date : 2021-11-05 DOI: 10.1145/3470482.3479629

Paulo Filipe Dantas, J. G. R. Maia, Windson Viana

引用次数: 1

Supervised Learning for Misinformation Detection in WhatsApp 监督学习在WhatsApp的错误信息检测

Proceedings of the Brazilian Symposium on Multimedia and the Web Pub Date : 2021-11-05 DOI: 10.1145/3470482.3479641

Julio C. S. Reis, Fabrício Benevenuto

引用次数: 7

Mobile Application Recommendation based on Demographic and Device Information 基于人口统计和设备信息的移动应用推荐

Proceedings of the Brazilian Symposium on Multimedia and the Web Pub Date : 2021-11-05 DOI: 10.1145/3470482.3479623

Raissa P. P. M. Souza, Gabriel T. P. Coimbra, Leonardo J. A. S. Figueiredo, Fabrício A. Silva, T. R. Silva

{"title":"Mobile Application Recommendation based on Demographic and Device Information","authors":"Raissa P. P. M. Souza, Gabriel T. P. Coimbra, Leonardo J. A. S. Figueiredo, Fabrício A. Silva, T. R. Silva","doi":"10.1145/3470482.3479623","DOIUrl":"https://doi.org/10.1145/3470482.3479623","url":null,"abstract":"The number of people with access to mobile devices, as well as applications to these devices (i.e., apps), has been increasing significantly. Thus, users have to choose among a high number of apps, those that better serve them. However, this is not a trivial task, as we have seen an increasing number of apps proposing to do the same functions. In the same way, companies are facing difficulties to attract users through a usual marketing campaign. A possible solution to this problem is the adoption of recommendation systems, where it is possible to compare the similarities of user profiles. Meanwhile, these systems often consider only users' preferences to create a profile, or request sensitive data (e.g., call and message logs). However, the installation of an app may involve other factors like the capacity of the mobile device (e.g., memory and processing power) and the demographic information of the user's living area. This work investigates the impact of using demographic and handset information on app recommendation. To do that, we use this information to enrich a user profile that has only easy-to-obtain data (i.e., installed apps, approximate location, and handset model). Besides, our proposal was evaluated on three different recommending approaches: Latent Dirichlet Allocation (LDA), Markov Transition Matrix (MTM), and Collaborative Filtering. The general results reveal that the LDA approach achieved the highest efficacy when added information about the user's region mean wage, in terms of precision (approximately 64%) and recall (approximately 28%).","PeriodicalId":350776,"journal":{"name":"Proceedings of the Brazilian Symposium on Multimedia and the Web","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116603150","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

iOTA: An Approach to Secure Over-The-Air Updates on the Internet of Things Scenario iOTA:一种在物联网场景下保护无线更新的方法

Proceedings of the Brazilian Symposium on Multimedia and the Web Pub Date : 2021-11-05 DOI: 10.1145/3470482.3479630

Cleber S. Peter, Thayná Oliveira, Eduardo M. Monks, Fernanda P. Motta, J. Barbosa, A. Yamin

引用次数: 3

A Systematic Process for Computing Bourdieusian Social Capital within Institutional Profiles on Twitter 在Twitter上的机构概况中计算布尔迪厄社会资本的系统过程

Proceedings of the Brazilian Symposium on Multimedia and the Web Pub Date : 2021-11-05 DOI: 10.1145/3470482.3479437

Guilherme Augusto da Silva Ferreira, Alan Keller Gomes

引用次数: 1

IoT Helmet: an intelligent helmet for locating accidented bikers 物联网头盔:用于定位事故骑行者的智能头盔

Proceedings of the Brazilian Symposium on Multimedia and the Web Pub Date : 2021-11-05 DOI: 10.1145/3470482.3479460

K. D. Silva, Márcio Sabino, Eliandro da Silva, Luciano Gallegos

{"title":"IoT Helmet: an intelligent helmet for locating accidented bikers","authors":"K. D. Silva, Márcio Sabino, Eliandro da Silva, Luciano Gallegos","doi":"10.1145/3470482.3479460","DOIUrl":"https://doi.org/10.1145/3470482.3479460","url":null,"abstract":"Every year, approximately 1,25 million people die in automobilistic accidents worldwide, where 23% are motorcyclists. Amongst the countries that have large motorcycle market, Brazil stands out between the largest ones comprising 22 million motorcycles and 30 million motorcyclists, where these machines are often used in remote or limited access locations such as on fields, dirt roads or isolated streets. In an motorcycle accident, it is common that the motorcyclist loose his consciousness and thus be unable to request help within the so-called 60 minutes \"Golden Hour\" limit. Considering the evolution and cheapeness of Internet of Things (IoT) technologies, applications aimed at saving lives become more and more common, making it easier to connect equipments in a data communication network. In this article, we describe a intelligent helmet equipped with embedded IoT technologies for geolocating and communicating with computer devices such as personal computers and mobile phone about accidented motorcyclists within 60 minutes in real-time. Simulations and tests shown promising results in real experiments where technologies such as sensors, microprocessor and the communication devices embedded in the IoT helmet's enable data colection and processing about the motorcyclist's situation, as well as wireless data transmisson and notification about his current status.","PeriodicalId":350776,"journal":{"name":"Proceedings of the Brazilian Symposium on Multimedia and the Web","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132410671","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

MAAT: Multisensorial Audiobooks Authoring Tool MAAT:多感官有声读物创作工具

Proceedings of the Brazilian Symposium on Multimedia and the Web Pub Date : 2021-11-05 DOI: 10.1145/3470482.3479446

H. Okuno, Flavio Carvalho, G. Guedes

引用次数: 0

Human Pose Estimation for Training Assistance: a Systematic Literature Review 用于训练辅助的人体姿势估计:系统文献综述

Proceedings of the Brazilian Symposium on Multimedia and the Web Pub Date : 2021-11-05 DOI: 10.1145/3470482.3479633

Gisela Miranda Difini, M. G. Martins, Jorge L. V. Barbosa

{"title":"Human Pose Estimation for Training Assistance: a Systematic Literature Review","authors":"Gisela Miranda Difini, M. G. Martins, Jorge L. V. Barbosa","doi":"10.1145/3470482.3479633","DOIUrl":"https://doi.org/10.1145/3470482.3479633","url":null,"abstract":"Human pose estimation is an important field of Computer Vision that aims to predict poses of individuals from videos and images. It has been used in many different areas including human-computer interaction, motion analysis, surveillance, action prediction, action correction, augmented reality, virtual reality, and healthcare. This review is focused on the most significant contributions in human pose estimation for training assistance. Executing movements correctly is crucial in all kinds of physical activities, both to increase performance and reduce risk of injury. Human pose estimation is poised to help athletes better analyse the quality of their movements. The systematic review study was conducted in five databases including articles from January 2011 to March 2021. The initial search resulted in 129 articles, of which 8 were selected after applying the filtering criteria. Moreover this study presents the challenges related to pose estimation, which pose estimation methods have been used in recent years, in which specific activities the selected articles have focused on, and a taxonomy of human pose estimation methods.","PeriodicalId":350776,"journal":{"name":"Proceedings of the Brazilian Symposium on Multimedia and the Web","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122535494","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: 11

A Proposal for an Accessible Videoconferencing Interface for People with Hearing Impairments 为听觉障碍人士提供无障碍视讯会议介面之建议

Proceedings of the Brazilian Symposium on Multimedia and the Web Pub Date : 2021-11-05 DOI: 10.1145/3470482.3479614

Matheus Lima, Guido Lemos de Souza Filho, R. Kulesza

{"title":"A Proposal for an Accessible Videoconferencing Interface for People with Hearing Impairments","authors":"Matheus Lima, Guido Lemos de Souza Filho, R. Kulesza","doi":"10.1145/3470482.3479614","DOIUrl":"https://doi.org/10.1145/3470482.3479614","url":null,"abstract":"Sign languages (LS) are the natural form of communication between deaf people. However, although sign languages are recognized in many countries as a language, access to information and education is still a common problem for deaf people. In Brazil, despite the existence of several accessibility laws that determine support for deaf people, many are still dependent on Libras interpreters to communicate, which impairs their autonomy. As a result, there is a great difficulty for the deaf to exercise their citizenship and have access to quality information and education through sign languages, which generally implies linguistic delay and knowledge acquisition. In this sense, the present work addresses a proposal for an accessible interface of tele-education for the hearing impaired in order to facilitate access to information, making it possible to bring the figure of the remote interpreter to the classroom. This solution involves adapting the interface of the open source system, making it possible for the remote interpreter to be present to meet the needs of deaf students and make the classroom experience more accessible. In addition, a solution for displaying live subtitles was also implemented. The results obtained in this study proved to be promising, with 50% of users successfully completing more than 93.33% of the requested tasks. In addition, the group with the proposed solution was less dispersed when compared to the other group, concentrating most of its results above 80%, in a way that leads to believe that this type of adaptation can be welcomed by deaf users in the context of tele-education.","PeriodicalId":350776,"journal":{"name":"Proceedings of the Brazilian Symposium on Multimedia and the Web","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115945602","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

Code Complexity Impact of Widgets Accessibility Implementation in JavaScript Open-Source Libraries 代码复杂性对JavaScript开源库中widget可访问性实现的影响

Proceedings of the Brazilian Symposium on Multimedia and the Web Pub Date : 2021-11-05 DOI: 10.1145/3470482.3479613

W. Watanabe, Guilherme de Lemos, Humberto Lidio Antonelli, Renata Pontin de Mattos Fortes, Gabriel Costa Silva

{"title":"Code Complexity Impact of Widgets Accessibility Implementation in JavaScript Open-Source Libraries","authors":"W. Watanabe, Guilherme de Lemos, Humberto Lidio Antonelli, Renata Pontin de Mattos Fortes, Gabriel Costa Silva","doi":"10.1145/3470482.3479613","DOIUrl":"https://doi.org/10.1145/3470482.3479613","url":null,"abstract":"Widgets are part of many web applications and implement distinct interaction mechanisms, in reusable user interface components. However, implementing accessible widgets is a challenge, associated to different factors highlighted in the state-of-the-art, such as: lack of developers knowledge of accessibility guidelines, organization support and tools that support accessible development. This paper reports an investigation on JavaScript source-code complexity impacts of implementing accessibility requirements in widgets. We investigated Dialog, Drop-down menu and Tab widgets of 27 open-source JavaScript libraries. The results showed that widget software artifacts reported an increased average of source-code complexity when implementing accessibility requirements. Results also showed that using DOM-oriented JavaScript libraries (eg. jQuery) significantly increased source-code complexity of widgets. Nevertheless, when using Declarative Component-based JavaScript libraries, no significant difference in source-code complexity was observed. These results suggest that using Declarative Component-based widget libraries might reduce maintainability costs of JavaScript front-end projects.","PeriodicalId":350776,"journal":{"name":"Proceedings of the Brazilian Symposium on Multimedia and the Web","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127772926","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