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GingaSpace: a solution to execute multidevice applications on broadband TV systems GingaSpace:在宽带电视系统上执行多设备应用程序的解决方案
Brazilian Symposium on Multimedia and the Web Pub Date : 2013-11-05 DOI: 10.1145/2526188.2526239
Alan Livio Vasconcelos Guedes, Luís Feliphe Silva Costa, F. Brito, A. Guimarães, José Ivan Bezerra Vilarouca Filho, C. E. C. F. Batista, Guido Lemos de Souza Filho
{"title":"GingaSpace: a solution to execute multidevice applications on broadband TV systems","authors":"Alan Livio Vasconcelos Guedes, Luís Feliphe Silva Costa, F. Brito, A. Guimarães, José Ivan Bezerra Vilarouca Filho, C. E. C. F. Batista, Guido Lemos de Souza Filho","doi":"10.1145/2526188.2526239","DOIUrl":"https://doi.org/10.1145/2526188.2526239","url":null,"abstract":"Advances in interactive digital TV have enabled the introduction of application scenarios that explore Internet content and multiple device interaction. However, the authorship and interoperability for such scenarios is hampered by the diversity of technologies and devices involved. This paper presents a software architecture for a portable application store based on the H.761 ITU recommendation for IPTV services. The application store concept is implemented as a Ginga-NCL application, which retrieves and executes other Ginga-NCL applications. The description of the proposed software architecture, the execution of systems and usability tests on a software prototype are presented as results.","PeriodicalId":114454,"journal":{"name":"Brazilian Symposium on Multimedia and the Web","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131738850","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
XDTv: agile development of applications for digital TV XDTv:数字电视应用的敏捷开发
Brazilian Symposium on Multimedia and the Web Pub Date : 2013-11-05 DOI: 10.1145/2526188.2526240
Mario G. Neto, C. Ferraz
{"title":"XDTv: agile development of applications for digital TV","authors":"Mario G. Neto, C. Ferraz","doi":"10.1145/2526188.2526240","DOIUrl":"https://doi.org/10.1145/2526188.2526240","url":null,"abstract":"Nowadays, more and more computing devices arise with different applicabilities. Software applications peculiarities for Digital TV (DTV), for example, require special attention in its development process, such as multimedia content gathering requirements (size, display time, location and timing) and development time (limited by the production time of the TV program). This work presents an agile and hybrid development method, instantiated for DTV environment and named eXtreme Digital Television (XDTv). The goal is to contribute with the handling of such peculiarities. Experimental results provide outcomes that XDTv contributes to improve the performance of software applications development for DTV.","PeriodicalId":114454,"journal":{"name":"Brazilian Symposium on Multimedia and the Web","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133840361","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: 2
Developing a ubiquitous tourist guide 开发无处不在的旅游指南
Brazilian Symposium on Multimedia and the Web Pub Date : 2013-11-05 DOI: 10.1145/2526188.2526215
Humberto Moura, C. Costa, S. Rigo, E. Silva, J. Barbosa, L. G. D. Silveira, Matheus Henrique Wichman, Underlea Bruscato
{"title":"Developing a ubiquitous tourist guide","authors":"Humberto Moura, C. Costa, S. Rigo, E. Silva, J. Barbosa, L. G. D. Silveira, Matheus Henrique Wichman, Underlea Bruscato","doi":"10.1145/2526188.2526215","DOIUrl":"https://doi.org/10.1145/2526188.2526215","url":null,"abstract":"In the tourism area, the use of mobile devices brings significant benefits, considering the associated mobility, the instant access and the quality of the tourist information provided. One of the applications in this field is the electronic tourist guide, which provide information to tourists to better enjoy their trip. In this perspective, this work proposes a model that uses mobile and ubiquitous tourism concepts to improve tourist experience. We had developed a prototype for iOS focused on the Caminhos de Pedra tourist itinerary, in Bento Gonçalves / Rio Grande do Sul. Using this prototype, we carried on two evaluations, regarding the ontology proposed and usability. As a result, we could verify that the proposed model helps people to better experience their trips.","PeriodicalId":114454,"journal":{"name":"Brazilian Symposium on Multimedia and the Web","volume":"96 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115835603","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: 4
Multimedia multi-device educational presentations preserved as interactive multi-video objects 保存为交互式多视频对象的多媒体多设备教育演示
Brazilian Symposium on Multimedia and the Web Pub Date : 2013-11-05 DOI: 10.1145/2526188.2526211
C. C. Viel, E. L. Melo, M. G. Pimentel, C. Teixeira
{"title":"Multimedia multi-device educational presentations preserved as interactive multi-video objects","authors":"C. C. Viel, E. L. Melo, M. G. Pimentel, C. Teixeira","doi":"10.1145/2526188.2526211","DOIUrl":"https://doi.org/10.1145/2526188.2526211","url":null,"abstract":"The capture of lectures or similar presentations is of interest for several reasons. From the attendee's perspective, students may use the recordings when working on homework assignments or preparing for exams, or to watch the contents of a missed class. From the instructor's perspective, a captured lecture may be evaluated, recaptured for improvements, or reused as complementary learning material. Moreover, captured lectures may be a valuable resource for e-learning and distance education courses. In this paper we detail the design rationale associated with the development of a prototype platform for the ubiquitous capture of live presentations and their transformation into a corresponding interactive multi-video object. Our approach includes capturing important context information which, when incorporated into the multimedia object, enables one to interact with the recorded lecture in novel dimensions. We tested our prototype by using case studies involving instructors and students, which allowed us to identify important features and novel uses for the platform.","PeriodicalId":114454,"journal":{"name":"Brazilian Symposium on Multimedia and the Web","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116823677","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: 12
jRDFa: browsing and visualization of linked data on the web jRDFa: web上链接数据的浏览和可视化
Brazilian Symposium on Multimedia and the Web Pub Date : 2013-11-05 DOI: 10.1145/2526188.2526194
André L. Carlomagno, Tito Gardel do Prado Filho, Marilton M. Cerqueira, Cássio V. S. Prazeres
{"title":"jRDFa: browsing and visualization of linked data on the web","authors":"André L. Carlomagno, Tito Gardel do Prado Filho, Marilton M. Cerqueira, Cássio V. S. Prazeres","doi":"10.1145/2526188.2526194","DOIUrl":"https://doi.org/10.1145/2526188.2526194","url":null,"abstract":"Several efforts in research and development of technologies have been spent to publish data in open standard formats. The main project in this regard is the Linked Open Data, which goal is to create an open and semantic Web of Data, enabling processing and understanding the data by software agents. However, not only the machines can take advantage of the explicit semantics of data. People can take advantage from the semantic of the data to explore unknown concepts, new relationships and to obtain personalized access to relevant resources and services. However, it is not trivial for a user without experience with Web of Data, to satisfactorily explore and use these data. This paper presents the jRDFa, an approach to support the web developer interested in presenting to non-technical users, semantic data embedded in HTML pages in RDFa format. This paper also presents two ways of presenting data in RDFa that were created using the jRDFa: tooltips visualization and facets navigation. To evaluate the proposed approach, this paper presents results of experiments on HTML pages with embedded jRDFa.","PeriodicalId":114454,"journal":{"name":"Brazilian Symposium on Multimedia and the Web","volume":"32 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122542716","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
Two normal forms for link-connector pairs in NCL 3.0 NCL 3.0中链路-连接器对的两种标准形式
Brazilian Symposium on Multimedia and the Web Pub Date : 2013-11-05 DOI: 10.1145/2526188.2526238
Guilherme Lima, L. Soares
{"title":"Two normal forms for link-connector pairs in NCL 3.0","authors":"Guilherme Lima, L. Soares","doi":"10.1145/2526188.2526238","DOIUrl":"https://doi.org/10.1145/2526188.2526238","url":null,"abstract":"In this paper, we investigate the problem of normal forms for links and connectors in NCL 3.0. We identify two such forms, called the First and Second Normal Forms (NF1 and NF2), in which links and connectors appear in simple terms. We also present normalization procedures (proofs), which show that for every NCL~3.0 program, there is an equivalent program in each of the forms. The mere existence of NF1 and NF2 makes the semantic analysis of programs simpler. Moreover, the symmetry exhibited by these forms suggests that the same principle of arbitrarily ordered evaluation underlies both the evaluation of link conditions and the execution of non-sequential compound actions.","PeriodicalId":114454,"journal":{"name":"Brazilian Symposium on Multimedia and the Web","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122575039","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: 4
Measuring and addressing the impact of cold start on associative tag recommenders 测量和解决冷启动对关联标签推荐器的影响
Brazilian Symposium on Multimedia and the Web Pub Date : 2013-11-05 DOI: 10.1145/2526188.2526189
E. Martins, F. Belém, J. Almeida, Marcos André Gonçalves
{"title":"Measuring and addressing the impact of cold start on associative tag recommenders","authors":"E. Martins, F. Belém, J. Almeida, Marcos André Gonçalves","doi":"10.1145/2526188.2526189","DOIUrl":"https://doi.org/10.1145/2526188.2526189","url":null,"abstract":"Tag recommendation methods that exploit co-occurrence patterns of tags have consistently produced state of the art results. However, tags are not present in significant portions of Web 2.0 objects, which may impact the effectiveness of such methods. This problem, known as cold start, is the focus of this paper. We here evaluate the impact of the cold start on a family of methods for recommending tags. Our results show that the effectiveness of these methods suffer greatly when they cannot rely on previously assigned tags in the target object and that the use of automatic filtering strategies to alleviate the problem yields limited gains. We then propose a new strategy that exploits both positive and negative relevance feedback (RF) from the users to iteratively select input tags to these methods. The results show that the proposed strategy generates significant gains (up to 45%) over the best considered baseline. It is also shown that the proposed method is robust to the lack of user cooperation.","PeriodicalId":114454,"journal":{"name":"Brazilian Symposium on Multimedia and the Web","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123380809","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: 8
Comparing the multimodal interaction technique design of MINT with NiMMiT MINT与NiMMiT的多模态交互技术设计比较
Brazilian Symposium on Multimedia and the Web Pub Date : 2013-11-05 DOI: 10.1145/2526188.2526192
S. Feuerstack, E. Pizzolato
{"title":"Comparing the multimodal interaction technique design of MINT with NiMMiT","authors":"S. Feuerstack, E. Pizzolato","doi":"10.1145/2526188.2526192","DOIUrl":"https://doi.org/10.1145/2526188.2526192","url":null,"abstract":"With new sensors that can capture hand and body movements in 3D, novel interaction techniques gain importance. But development of new forms of interaction is highly iterative, depends on extensive user testing and therefore is expensive. We propose a model-based notation using statecharts and mappings to ease multimodal interaction technique design. This model-based specification can be used to communicate designs, for evaluation and to enable re-use. Our contribution continues previous research on model-based interaction technique design considers multimodal interaction and addresses problems like the state explosion, error management and consideration of output modalities mentioned by earlier research. We evaluate our notation by comparing it with NiMMiT referring to the same use case to identify similarities, strength and problems.","PeriodicalId":114454,"journal":{"name":"Brazilian Symposium on Multimedia and the Web","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126330475","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
Development of interactive virtual environments using Java and Kinect technologies 使用Java和Kinect技术开发交互式虚拟环境
Brazilian Symposium on Multimedia and the Web Pub Date : 2013-11-05 DOI: 10.1145/2526188.2528540
Almerindo N. Rehem Neto, Celso A. S. Santos, L. D. Carvalho, C. Canuto
{"title":"Development of interactive virtual environments using Java and Kinect technologies","authors":"Almerindo N. Rehem Neto, Celso A. S. Santos, L. D. Carvalho, C. Canuto","doi":"10.1145/2526188.2528540","DOIUrl":"https://doi.org/10.1145/2526188.2528540","url":null,"abstract":"This short course presented in WebMedia 2013 has the mission to show new concepts of the framework OpenNI (Open Natural Interaction) version 2.2 and the development of applications using hardware capture depth, such as the Microsoft Kinect sensors and Carmine 1.08 PrimeSense's so adherent the standards of OpenNI.","PeriodicalId":114454,"journal":{"name":"Brazilian Symposium on Multimedia and the Web","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131343730","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
A solution for transmitting and displaying UHD 3D raw videos using lossless compression 使用无损压缩传输和显示UHD 3D原始视频的解决方案
Brazilian Symposium on Multimedia and the Web Pub Date : 2013-11-05 DOI: 10.1145/2526188.2526228
R. Gomes, Y. G. G. D. Costa, Lucenildo Lins Aquino Júnior, Manoel Gomes da Silva Neto, Alexandre Duarte, Guido Lemos de Souza Filho
{"title":"A solution for transmitting and displaying UHD 3D raw videos using lossless compression","authors":"R. Gomes, Y. G. G. D. Costa, Lucenildo Lins Aquino Júnior, Manoel Gomes da Silva Neto, Alexandre Duarte, Guido Lemos de Souza Filho","doi":"10.1145/2526188.2526228","DOIUrl":"https://doi.org/10.1145/2526188.2526228","url":null,"abstract":"This paper describes a software-based approach for transmitting, and displaying ultra high definition (UHD) videos (ex: 4K) in raw format (2D or 3D).The viability of using lossless compression algorithms for transmission, and exhibition of UHD raw videos was investigated. This approach allows the transmission of raw videos for supporting the development of distributed edition tools for UHD videos, and high quality visualization using a lower bandwidth. We conducted performance studies of eight lossless compression algorithms, aiming at analyze the compression ratio for 4K videos, and the latency in video encoding and decoding. Finally, a multi-thread version of the LZ4HC was integrated with the Fogo Player, which is a software-based 4K player developed in a previous work. We obtained a reduction of about 38% in bandwidth requirements, and a decoding latency that allowed the exhibition in real time of 4K videos.","PeriodicalId":114454,"journal":{"name":"Brazilian Symposium on Multimedia and the Web","volume":"5 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131382639","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: 7
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