Celso Alberto Saibel Santos

Celso Alberto Saibel Santos
Universidade Federal do Espírito Santo | UFES · Departamento de Informática

Dr. Sc.
Professor at Fed. Univ. of Espírito Santo (UFES), Brazil. Currently, Technical-Scientific Director of FAPES.

About

147
Publications
25,550
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Introduction
Dr. Celso A. S. Santos is currently in charge of Scientific Direction of the Espírito Santo Research and Innovation Support Foundation (FAPES). He is also Prof. at Federal University of Espírito Santo (UFES) in Brazil, since 2012. He has received his Dr. in Computer Science (1999, UPS, Toulouse, France), MSc. in Electronics Systems (1994, Univ. São Paulo, Brazil), and Electrical Eng. degree (1991, UFES).
Additional affiliations
January 2012 - present
Universidade Federal do Espírito Santo
Position
  • Professor (Associate)
January 2009 - March 2012
Universidade Federal da Bahia
Position
  • Professor (Associate)
February 2001 - January 2009
Universidade Salvador
Position
  • Professor (Full)

Publications

Publications (147)
Article
With the expansion of the Internet of Things (IoT), several monitoring solutions are available in the market. However, most solutions use proprietary software, which is costly and do not provide online monitoring, hampering data access and hindering preventive actions. This article presents LimnoStation, a low-cost integrated hardware and software...
Article
Full-text available
Crowdsourcing arose as a problem-solving strategy that uses a large number of workers to achieve tasks and solve specific problems. Although there are many studies that explore crowdsourcing platforms and systems, little attention has been paid to define what a crowd-powered project is. To address this issue, this paper introduces a general-purpose...
Article
Omnidirectional videos have become a leading multimedia format for Virtual Reality applications. While live 360° videos offer a unique immersive experience, streaming of omnidirectional content at high resolutions is not always feasible in bandwidth-limited networks. While in the case of flat videos, scaling to lower resolutions works well, 360° vi...
Article
The circadian rhythm is the period of about 24 hours which is the basis of the human biological cycle. It coordinates human daytime activities and body rest, and influences cognitive learning and processing information in the brain during sleep. Light rhythmically influences these hormonal physiological procedures. External factors such as exposure...
Conference Paper
This work presents the development of a microservices integration platform for e-health, called HealthGate. The architecture proposed for the platform, based on microservices, aims to help contextualized implementations in e-health, seeking to reach critical points related to the domain, such as the heterogeneity of services and specifications. We...
Conference Paper
Full-text available
User’s Quality of Experience (QoE) understanding from objective metrics has been increasingly explored in multisensory research. However, capturing physiological data adds a degree of difficulty to an already complex environment composed of software to reproduce content and actuators to deliver sensory effects. In this paper, we introduce the potent...
Conference Paper
Abstract—A major challenge for remote patient monitoring (RPM) systems is processing data collected from a large number of healthcare devices and developing suitable algorithms and approaches to react accordingly to a wide spectrum of situations of interest, which must be properly detected. Flow-based programming, whose operation is based on state...
Conference Paper
Abstract—Remote patient monitoring (RPM) is commonly employed in home environments to monitor a patient’s health in compliance with their healthcare plan. Simulating real-life scenarios for testing the health applications is a complex and challenging task, particularly in the RPM scenario, for testing issues related to scalability, which can raise...
Article
Quality of Experience (QoE) is indelibly linked to the human side of the multimedia experience. Surprisingly, however, there is a paucity of research which explores the impact that human factors has in determining QoE. Whilst this is true of multimedia, it is even more starkly so as far as mulsemedia - applications that involve media engaging three...
Article
Full-text available
This paper proposes a new scalable service-oriented architecture based on Open Service Gateway Initiative (OSGI) technology. A key part of this architecture is its SIP application as a service (SIP-AS). It relies on IMS core network supported by multi agents components implemented using Java Agent DEvelopment (JADE) platform. As a proof of concept,...
Conference Paper
Full-text available
Several cities around the world face security problems, such as vehicle theft. Locate and recover these vehicles are challengers for authorities. In smart cities, citizens can collaborate with authorities by sensing urban and environmental data, so-called crowdsensing. This work introduces Crowd-Auto, a crowdsensing approach that utilizes a crowded...
Conference Paper
Like the spoken languages, sign languages are not universal and vary in different countries. LIBRAS (Brazilian Sign Language) is the second official language of Brazil and it is the language adopted by Brazilian Deaf's community to communicate. The signs of LIBRAS are composed of hand configurations, facial expressions and are affected by space and...
Conference Paper
Full-text available
The candidate's thesis is within the emerging topic of mulsemedia systems, which encompass audiovisual content associated with multisensory effects, users' quality of experience, and human-computer interaction. It presents a conceptual architecture and a framework that take into account the challenges and requirements for mulsemedia delivery system...
Article
Using olfactory media to enhance traditional multimedia content opens up novel opportunities for user interactions. Whilst the influence of olfaction on user experience in mulsemedia (multiple sensorial media) environments has been previously studied, the impact of the fundamental dimensions of scent intensity and valence (odor hedonic dimension or...
Cover Page
Full-text available
Multisensory effects devices have been increasingly developed by research groups and companies with the aim of creating more immersive experiences for users by generating tactile, olfactory, and gustatory sensations. These technologies have been applied to areas such as entertainment, healthcare, education, culture, and marketing. This article brin...
Article
Full-text available
One of the main challenges in current multimedia networking environments is to find solutions to help accommodate the next generation of mobile application classes with stringent Quality of Service (QoS) requirements whilst enabling Quality of Experience (QoE) provisioning for users. One such application class, featured in this paper, is 360° muls...
Article
Full-text available
Designing a mulsemedia—multiple sensorial media—system entails first and foremost comprehending what it is beyond the ordinary understanding that it engages users in digital multisensory experiences that stimulate other senses in addition to sight and hearing, such as smell, touch, and taste. A myriad of programs that comprise a software system, se...
Conference Paper
Whoever has already downloaded a subtitle file from the Internet has probably had a bitter disappointment when finding that the subtitles were not synchronized in regards to the audiovisual content. This situation demonstrates that the quality of subtitle synchronization has the ability to impact, positively or negatively, the viewer experience. In...
Conference Paper
Full-text available
Dispositivos de efeitos multissensoriais estão cada vez mais sendo desenvolvidos por grupos de pesquisa e empresas com o objetivo de melhorar a qualidade da experiência (QoE) dos usuários, criando sensações de vibração, toque, cheiro, vento e assim por diante. Este breve artigo resume os esforços recentes de dispositivos táteis, olfativos e gustati...
Conference Paper
Full-text available
Previous research has shown that adding multisensory media—mulsemedia—to traditional audiovisual content has a positive effect on user Quality of Experience (QoE). However, the QoE impact of employing mulsemedia in 360° videos has remained unexplored. Accordingly, in this paper, a QoE study for watching a 360° video—with and without multisensory eff...
Article
Full-text available
Technological advances in computing have allowed multimedia systems to create more immersive experiences for users. Beyond the traditional senses of sight and hearing, researchers have observed that the use of smell, taste, and touch in such systems is becoming increasingly well-received, leading to a new category of multimedia systems called mulse...
Article
Full-text available
Human perception is inherently multi-sensorial involving five traditional senses: sight, hearing, touch, taste, and smell. In contrast to traditional multimedia, based on audio and visual stimuli, mulsemedia seek to stimulate all the human senses. One way to produce multi-sensorial content is authoring videos with sensory effects. These effects are...
Article
Multisensory experiences have been increasingly applied in Human-Computer Interaction (HCI). In recent years, it is commonplace to notice the development of haptic, olfactory, and even gustatory displays to create more immersive experiences. Companies are proposing new additions to the multisensory world and are unveiling new products that promise...
Article
Multiple Sensorial Media (MulSeMedia) systems transcend the traditional senses of sight and hearing, adding smell, touch, and taste into multimedia applications to create more immersive experiences for the users. Here, we provide a picture of the challenges and requirements for mulsemedia delivery and present a solution to cope with software and ha...
Conference Paper
Full-text available
In this paper, we propose HealthDash, a framework for developing IoT solutions for health care. HealthDash employs the data-flow-oriented programming paradigm, from the cloud layer to the network edge (fog layer), unifying development technologies across layers, that is, from edge devices to decision making. We conducted an experiment to evaluate t...
Conference Paper
Agricultural greenhouses have improved productivity in the cultivation of specific crops. Efforts towards the automation of these environments have been carried out with the application of different technologies. However, the absence of a solution that comprises a complete chain of the automation process has been noted. Internet of Things (IoT) is...
Conference Paper
Watching a movie in which audio and video are out of sync is certainly an unpleasant experience, even with a big bucket of fresh popcorn. In a similar way, viewers can experience a negative experience when subtitles are not well synchronized with the media content. The point is that subtitles synchronization (or the lack thereof) plays a key role,...
Presentation
Full-text available
This is a presentation file for the paper "Towards a Reference Ontology on Mulsemedia Systems" presented at The 10th International Conference on Management of Emergent Digital EcoSystems (MEDES'18), in Tokyo, Japan. See the paper at https://www.researchgate.net/publication/327035098_Towards_a_Reference_Ontology_on_Mulsemedia_Systems
Conference Paper
The use of multiple senses in interactive applications has become increasingly feasible due to the upsurge of commercial, off-the-shelf devices to produce sensory effects. Creating Multiple Sensorial Media (MulSeMedia) immersive systems requires understanding their digital ecosystem. Mulsemedia systems encompass a set of applications, and devices o...
Article
Full-text available
Over the years, different approaches to identify temporal and spatial conflicts in hypermedia applications has been proposed. Most of them are based on formal verification techniques and impose to the designers to follow a formal model or language to ensure application’s functional correctness. Furthermore, the error diagnose is hard to be interpre...
Article
Crowdsourcing is a powerful method that leverages human intelligence to solve problems in the medical, linguistics, machine learning, and in a considerable number of other fields of study. This systematic review aims to understand how crowdsourcing projects are designed and executed in the state-of-the-art, considering the following dimensions: Tas...
Presentation
Full-text available
This is a presentation file for the paper "Improving Response Time Interval in Networked Event-based Mulsemedia Systems" presented at The 9th ACM Multimedia Systems Conference (ACM MMSYS'18), in Amsterdam, Netherlands. See the paper at https://doi.org/10.1145/3204949.3204965
Conference Paper
Human perception is inherently multisensory involving sight, hearing, smell, touch, and taste. Mulsemedia systems include the combination of traditional media (text, image, video, and audio) with non-traditional ones that stimulate other senses beyond sight and hearing. Whilst work has been done on some user-centred aspects that the distribution of...
Article
Full-text available
This work features the LiveSync, a method that allows synchronization of live video streams from multiple sources, such as YouTube, Vimeo, and other video streaming platforms. The proposed method aims to cover scenarios where automatic techniques face difficulties to provide correct video synchronization: multiple users capturing videos on the same...
Conference Paper
This paper presents a general approach to perform crowdsourcing video annotation without requiring trained workers nor experts. It consists of dividing complex annotation tasks into simple and small microtasks and cascading them to generate a final result. Moreover, this approach allows using simple annotation tools rather than complex and expensiv...
Conference Paper
In this paper we concentrate on the study of the collaborative practices of enthusiasts that create and share subtitles for third-party videos. Based on preliminary results from interviews with some volunteers, we formalize the subtitles creation and sharing process using a business process management model and compare it with other collaborative a...
Conference Paper
Full-text available
Este artigo apresenta o EstGeoMag, uma solução de hardware e software de baixo custo, baseado em conceitos presentes na Internet das Coisas, e que tem como objetivo principal auxiliar a obtenção de grandezas geomagnéticas com alta resolução e precisão. Além do detalhamento da arquitetura em hardware e software, para a avaliação da precisão e acurác...
Conference Paper
Mulsemedia applications have become increasingly popular. There have been many efforts to increase the Quality of Experience (QoE) of users by using them. From the users' perspective, it is crucial that systems produce high levels of enjoyment and utility. Thus, many experimental tools have been developed and applied to different purposes such as e...
Article
Full-text available
The emergence of Interactive Digital Television (iDTV) opened a set of technological possibilities that go beyond those offered by conventional TV. Among these opportunities we can highlight interactive contents that run together with linear TV program (television service where the viewer has to watch a scheduled TV program at the particular time i...
Conference Paper
Full-text available
Magnetometros tem sido amplamente usados no campo da pesquisa geofisica para o monitoramento do campo magnetico do planeta e vigilância de fenomenos naturais como tempestades solares, terremotos e maremotos. Usualmente disponibilizado no mercado por poucos fabricantes e com uso de tecnologia proprietaria, torna-se um equipamento de uso restrito em...
Conference Paper
The presentation of information is a very important part of the comprehension of the whole. Therefore, the chosen visualization technique should be compatible with the content to be presented. An easy and fast visualization of the subjects developed by a research group, during certain periods, requires a dynamic visualization technique such as the...
Conference Paper
Synchronization is about providing coherent orchestration of events or resources involved in a multimedia application. In a synchronized application, the user has the notion that his device's content is directly connected with others. In this paper we discuss the existing synchronization techniques, their advantages and disadvantages, and the curre...
Conference Paper
This paper summarizes some information about a 4 hours short course presented by the authors during the WebMedia'16. Our short course aims to present the concept of crowdsourcing and empower participants to implement this model of production in various activities linked with Multimedia and Web Systems, such as annotation, generation, summarization,...
Conference Paper
Full-text available
Abstract: Crowdsourcing is a problem-solving model through the contribution of a large number of people and has a low cost among its main advantages. On the other hand, smart cities today comprise a multidisciplinary challenge, where they have the objective of sustainable development and improving the quality of life of its inhabitants. Thus, we se...
Article
Full-text available
RESUMO: A apresentação visual dos dados permite uma melhor compreensão por parte dos usuários. Este estudo tem como objetivo fazer uma Revisão Sistemática da Literatura (SLR) existente, sobre a visualização de dados em sistemas de informações geográficas, a fim de abordar questões de pesquisa específicas, resumir os resultados, classificar as pesqu...
Conference Paper
Full-text available
The advent of Kinect triggered the growth of applications aimed at natural interaction, gesture recognition and interactive environments. Over time, we realized that interface solutions based on such types of interaction grew in a rapid and disorderly way, without any concern for the formalization of development stages. In addition, issues related...
Conference Paper
Full-text available
Live video streaming through smartphones has proven its potential as a social media, shown in practices of citizen journalism during latest political and social events, such as the Arab Spring, the 15-M movement in Spain, the Occupy movement and 2013 protests in Brazil. A broader coverage of such type of happenings has only been possible by using p...
Conference Paper
MulSeMedia is related to the combination of traditional media (e.g. text, image and video) with other objects that aim to stimulate other human senses, such as mechanoreceptors, chemoreceptors and thermoreceptors. Existing solutions embed the control of actuators in the applications, thus limiting their reutilization in other types of applications...
Chapter
Full-text available
A norma ISO/IEC 23005, também conhecida como MPEG-V, provê uma arquitetura e especifica representações de informação para conectar entidades do mundo virtual (associadas a cenários de jogos, simuladores e aplicações) e do mundo real (ex. sensores e atuadores). Com foco na questão do desenvolvimento de aplicações interativas interoperáveis é introdu...
Conference Paper
This paper describes a 4 hours short course summary to be presented by the authors during WebMedia 2015. The short course is about the development of interoperable interactive applications based on the ISO/IEC 23005 - MPEG-V Standard. This standard encompasses specifications regarding device capabilities, sensory effects, virtual world object chara...
Conference Paper
Watching TV shows changed in both technology (3D, iTV, smartTV, ...) and source (P2P, IPTV, CDN, ...). Also the user can access digital content from diverse sources by using one or more devices for composing his presentation. This content can range from additional media objects to media streams transmitted in broadcast. The challenge is to make the...
Conference Paper
Full-text available
The paper presents an event driven approach for building interactive environments with sensory effects (such as RGB color light, wind and vibration) described through MPEG-V standard. The most important differences of this work from previous ones are: (1) it divides the design process into well-defined stages, showing the behavior of the system und...
Conference Paper
Full-text available
In recent years, after the great proliferation of mobile devices, the relationship between usability, context and emotions of users is widely discussed in studies related to the user experience (UX) theme. Evaluations indicate that each user interacts with applications in slightly different ways and has different feelings about the applications ins...
Article
Full-text available
The advent of advanced user interface devices has raised the interest of industry and academia in finding new modes of Human-Computer Interaction. Advanced interfaces employ gesture recognition, as well as motion and voice capturing to enable humans to interact naturally with interactive environments without utilizing any of the traditional devices...
Article
Full-text available
The development of methodologies and techniques to evaluate smartphones usability is an emerging topic in the scientific community and triggers discussions about which methodology is most appropriate. The lack of consensus is due to the inherent difficulty on capturing context data in the scenarios where the experiments take place and on relating t...
Conference Paper
This paper proposes a scenario of service-oriented architecture based on OSGi technology, in combination with multi agents systems developed using JADE environment. A key part of the scenario is the new architecture for SIP application server as part of the IMS Core network. As a proof of concept, a simulated environment for a televoting service wa...
Article
The concept of Viewer usually specifies someone who watches, listens and receives information available on his TV. However, the addition of the ability to run applications and access the Internet into TVs changes this concept, since the content shown in TV receivers are no longer under the total control of the TV stations and a viewer can access an...
Article
Full-text available
É crescente o número de ferramentas Web que adotam crowdsourcing, via anotações colaborativas em mapas, como modelo de resolução de problemas e produção de dados. Várias delas permitem aos usuários anotar incidentes de diferentes tipos no mapa, como incidentes relacionados à segurança, saúde e transporte. Idealmente, estas iniciativas deveriam ofer...
Conference Paper
Full-text available
The advancement of mobile computing driven by the use of smartphones in several scenarios of interaction requires the monitoring of user experience (UX) used as a basis to improve the applications. The contextual variables can interfere substantially UX and need to be demystified. The goal is to allow applications can be interesting as reading a go...
Conference Paper
Full-text available
Nowadays, usability is one of the most important attributes to facilitate the adoption and retention of mobile applications mainly because of the contextual interference in interactions. With the development of techniques for data capture, a large volume of data can be collected to assist in the evaluations. After storage of the data, another probl...
Conference Paper
Authoring tools for editing hypermedia documents should be able to describe temporal and spatial relationships among objects, and user interactions as well. These tools can also support modifications in the document structure during the exhibition time. In all these situations, hypermedia document correctness should be guaranteed. In this paper, we...
Conference Paper
Full-text available
The development of methodologies and techniques to evaluate smartphones usability is an emerging topic in the scientific community and triggers discussions about which methodology is most appropriate. The lack of consensus is due to the inherent difficulty on capturing context data in the scenarios where the experiments take place and on relating t...
Article
Full-text available
This paper presents results of compliance tests performed on digital signals transmitted by the main TV broadcasters in five Brazilian capitals. The analysis took into account some specific points of the relevant ABNT standards, which regulate all aspects of the Brazilian Digital TV System (SBTVD). Several problems and non-conformities that were fo...