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A Characterization of Access Profiles and Navigation in E-Commerce: A Tourism Application 电子商务中访问概况和导航的表征:一个旅游应用
Brazilian Symposium on Multimedia and the Web Pub Date : 2014-11-18 DOI: 10.1145/2664551.2664581
Ruhan Bidart, A. Pereira, J. Almeida
{"title":"A Characterization of Access Profiles and Navigation in E-Commerce: A Tourism Application","authors":"Ruhan Bidart, A. Pereira, J. Almeida","doi":"10.1145/2664551.2664581","DOIUrl":"https://doi.org/10.1145/2664551.2664581","url":null,"abstract":"Currently, it has been observed an increasing popularization of e-commerce. Thus, in areas such as tourism, online retailers are dealing with different challenges such as performance, scalability and personalization. In this context, it is fundamental to understand the characteristics of the user requests, and the access patterns of users on these systems. In this work we analyze the workload of a tourism Web system, which has on average six thousand unique daily access. We present a characterization of users sessions, their requests, and their navigation profile. As results we identify the distinct user profiles and we understand the navigation and access patterns of these users and we define a methodology of profiles and workload characterization that can be used in any other type of system, not only in tourism applications.","PeriodicalId":114454,"journal":{"name":"Brazilian Symposium on Multimedia and the Web","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116150102","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
Vulnerability in the Information Age: What Browsers Reveal 信息时代的漏洞:浏览器揭示了什么
Brazilian Symposium on Multimedia and the Web Pub Date : 2014-11-18 DOI: 10.1145/2664551.2664588
Brunna Albuquerque, Carlos Filipe Regis, J. Moreira
{"title":"Vulnerability in the Information Age: What Browsers Reveal","authors":"Brunna Albuquerque, Carlos Filipe Regis, J. Moreira","doi":"10.1145/2664551.2664588","DOIUrl":"https://doi.org/10.1145/2664551.2664588","url":null,"abstract":"The exponential growth in the use of web services and applications has increased the amount of personal information registered on websites and databases worldwide. Consequently, users are more exposed to vulnerability flaws and more subject to the impact of leaking this information. This article investigates how personal information is handled by three popular browsers: Internet Explorer, Mozilla Firefox and Google Chrome, by analyzing data collected in shared research laboratories. Through the analysis of data stored by browsers on a shared computer laboratory, we found a large number of cookies with important personal information, showing that these browsers can reveal more than the users would like.","PeriodicalId":114454,"journal":{"name":"Brazilian Symposium on Multimedia and the Web","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114071982","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
MovieMatcher: A Heuristic to Match Movies Based on Metadata from Different Data Sources MovieMatcher:一种基于不同数据源元数据的电影匹配启发式算法
Brazilian Symposium on Multimedia and the Web Pub Date : 2014-11-18 DOI: 10.1145/2664551.2664587
Fernando Brito, J. Moreira
{"title":"MovieMatcher: A Heuristic to Match Movies Based on Metadata from Different Data Sources","authors":"Fernando Brito, J. Moreira","doi":"10.1145/2664551.2664587","DOIUrl":"https://doi.org/10.1145/2664551.2664587","url":null,"abstract":"With the advent of Web 2.0 and the behavior change which it brought, there are millions of users worldwide contributing to different databases with various forms of data, such as movie ratings, for example. Moreover, the same real-world object (a song, a band or a movie) can be modeled using different ontologies or represented in different ways within the same ontology. Thus, the same film is often described by different attributes in different databases, making it difficult to perform an automatic mapping between those databases. We propose MovieMatcher, which is a heuristic that matches films across different databases using their metadata. After performing 2 experiments with the attempt to match 500 films to IMDb and Rotten Tomatoes databases, MovieMatcher had a success rate of 97.4% and 94.1%, in contrast to an alternative, simpler approach (title exact matching), which had a success rate of 80.8% and 81.9%, respectively.","PeriodicalId":114454,"journal":{"name":"Brazilian Symposium on Multimedia and the Web","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127169912","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
Timeline Alignment of Multiple TV Contents 多个电视内容的时间线对齐
Brazilian Symposium on Multimedia and the Web Pub Date : 2014-11-18 DOI: 10.1145/2664551.2664575
R. M. C. Segundo, Celso A. S. Santos
{"title":"Timeline Alignment of Multiple TV Contents","authors":"R. M. C. Segundo, Celso A. S. Santos","doi":"10.1145/2664551.2664575","DOIUrl":"https://doi.org/10.1145/2664551.2664575","url":null,"abstract":"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 and view on the screen of your TV (or on a second screen) extra contents related to the program that they are watching. In fact, each viewer decides how to integrate these multiple contents generating unique and individual experiences. However, as these experiences are based on the access to different content sources, it becomes necessary to synchronize this content locally on each user's reception platform. This paper proposes a generic model to synchronize content from different sources with a TV show on each client, independently of middleware and platform used. The model foresees the generation of sync points from the (main) content of a program, which are sent to customers and used locally to synchronize the different extra content accessed by the viewer with the main content. A proof-of-concept application is presented to evaluate the model. In the application, different audio streams and text related to a TV show are aggregated, reaching a high accuracy when synchronized.","PeriodicalId":114454,"journal":{"name":"Brazilian Symposium on Multimedia and the Web","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115285061","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
Ensemble Learning in Recommender Systems: Combining Multiple User Interactions for Ranking Personalization 推荐系统中的集成学习:结合多个用户交互进行排名个性化
Brazilian Symposium on Multimedia and the Web Pub Date : 2014-11-18 DOI: 10.1145/2664551.2664556
A. C. Fortes, M. Manzato
{"title":"Ensemble Learning in Recommender Systems: Combining Multiple User Interactions for Ranking Personalization","authors":"A. C. Fortes, M. Manzato","doi":"10.1145/2664551.2664556","DOIUrl":"https://doi.org/10.1145/2664551.2664556","url":null,"abstract":"In this paper, we propose a technique that uses multimodal interactions of users to generate a more accurate list of recommendations optimized for the user . Our approach is a response to the actual scenario on the Web which allows users to interact with the content in different ways, and thus, more information about his preferences can be obtained to improve recommendation. The proposal consists of an ensemble learning technique that combines rankings generated by unimodal recommenders based on particular interaction types. By using a combination of different types of feedback from users, we are able to provide better recommendations, as shown by our experimental evaluation.","PeriodicalId":114454,"journal":{"name":"Brazilian Symposium on Multimedia and the Web","volume":"238 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124622978","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: 22
Tridimensional Visualization through Optical Illusion 通过光学错觉的三维可视化
Brazilian Symposium on Multimedia and the Web Pub Date : 2014-11-18 DOI: 10.1145/2664551.2664582
Vinícius Emanuel Miranda Silva, Mozart W. S. Almeida, J. M. Teixeira, V. Teichrieb
{"title":"Tridimensional Visualization through Optical Illusion","authors":"Vinícius Emanuel Miranda Silva, Mozart W. S. Almeida, J. M. Teixeira, V. Teichrieb","doi":"10.1145/2664551.2664582","DOIUrl":"https://doi.org/10.1145/2664551.2664582","url":null,"abstract":"Holography is a technique that uses the properties of light as a way of registering and representing three-dimensional scenes and objects. However, holography is not the only technique that makes it possible to visualize in three dimensions. In this work will be detailed another form of three-dimensional visualization based on an invention of the late 19th century. Different applications that use this approach will be presented, as well as their results that are quite similar to those of holography. A solution involving hardware/software for 3D visualization through optical illusion is proposed. Using a prism with specific geometric proportions, is possible project the generated content with the developed tool to visualize objects and even 3D point clouds relating to faces captured with the Microsoft Kinect sensor.","PeriodicalId":114454,"journal":{"name":"Brazilian Symposium on Multimedia and the Web","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128587647","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
Sentiment Analysis for Streams of Web Data: A Case Study of Brazilian Financial Markets 网络数据流的情绪分析:以巴西金融市场为例
Brazilian Symposium on Multimedia and the Web Pub Date : 2014-11-18 DOI: 10.1145/2664551.2664579
Bruna Neuenschwander, A. Pereira, Wagner Meira Jr, Denilson Barbosa
{"title":"Sentiment Analysis for Streams of Web Data: A Case Study of Brazilian Financial Markets","authors":"Bruna Neuenschwander, A. Pereira, Wagner Meira Jr, Denilson Barbosa","doi":"10.1145/2664551.2664579","DOIUrl":"https://doi.org/10.1145/2664551.2664579","url":null,"abstract":"With the rise of Web 2.0 applications, most people started consuming information and sharing opinions and ideas about most aspects of their lives on a variety of social media platforms, creating massive and continuous streams of valuable data. While this opened the door for information extraction and mining techniques that can help us understand different aspects of society, extracting useful information from such streams of Web data is far from trivial. In this setting, sentiment analysis techniques can be convenient as they are capable of summarizing general feeling about entities people care about, such as products and companies. Therefore, they can be quite applicable in scenarios like the stock market, which also has tremendous impact on society. This paper describes and evaluates two different techniques for sentiment analysis applied to the Brazilian stock market data: lexicon-based and machine learning based, considering a wide range of text pre-processing and feature selection approaches.","PeriodicalId":114454,"journal":{"name":"Brazilian Symposium on Multimedia and the Web","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134368706","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
Contextual Information Improving IPTV and Digital TV: A Systematic Review 语境信息改善IPTV和数字电视:系统回顾
Brazilian Symposium on Multimedia and the Web Pub Date : 2014-11-18 DOI: 10.1145/2664551.2664565
Marcelo Fernandes de Sousa, R. Kulesza, C. Ferraz
{"title":"Contextual Information Improving IPTV and Digital TV: A Systematic Review","authors":"Marcelo Fernandes de Sousa, R. Kulesza, C. Ferraz","doi":"10.1145/2664551.2664565","DOIUrl":"https://doi.org/10.1145/2664551.2664565","url":null,"abstract":"This paper presents the results obtained from a systematic literature review that aimed at mapping current research studies that use contextual information to improve the TV watching experience or propose some interesting approach using the TV environment. We followed the orientations of literature for elaboration of three Research Questions: What contextual elements are used IPTV/DTV services? How contextual information used by IPTV/DTV services is acquired? Which types of solutions are being proposed in those approaches? We end the paper presenting our conclusions and opportunities for further work.","PeriodicalId":114454,"journal":{"name":"Brazilian Symposium on Multimedia and the Web","volume":"11 22","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120853452","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
Trust Evaluation in an Android System for Detection and Alert Falls 基于Android系统的检测与警报系统信任评估
Brazilian Symposium on Multimedia and the Web Pub Date : 2014-11-18 DOI: 10.1145/2664551.2664578
Andressa Bezerra Ferreira, Leonardo Sabadini Piva, R. Braga, R. Andrade
{"title":"Trust Evaluation in an Android System for Detection and Alert Falls","authors":"Andressa Bezerra Ferreira, Leonardo Sabadini Piva, R. Braga, R. Andrade","doi":"10.1145/2664551.2664578","DOIUrl":"https://doi.org/10.1145/2664551.2664578","url":null,"abstract":"The number of people who need special care and are living alone has increased significantly in recent years. To help and assist them, different kinds of systems have been developed, for example, to detect and alert falls. However, the acceptance of such systems requires on the user part the belief that the system uses the collected data properly and not cause any harm. Specifically, trust for ubiquitous systems, which represent computing everywhere, anytime, and transparent for the final user, is a relevant issue. Thus, this paper evaluates, using measures of software quality, trust in a ubiquitous system, called fAlert, for detecting and warning falls. fAlert is an Android system that makes use of sensors to detect anomalies in everyday user activities.","PeriodicalId":114454,"journal":{"name":"Brazilian Symposium on Multimedia and the Web","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132620875","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
Building Keyword-Indexed Virtual Libraries in a Logic Programming Environment 在逻辑编程环境中构建关键字索引的虚拟库
Brazilian Symposium on Multimedia and the Web Pub Date : 2014-11-18 DOI: 10.1145/2664551.2664553
E. S. D. Lima, Simone Diniz Junqueira Barbosa, B. Feijó, A. Furtado
{"title":"Building Keyword-Indexed Virtual Libraries in a Logic Programming Environment","authors":"E. S. D. Lima, Simone Diniz Junqueira Barbosa, B. Feijó, A. Furtado","doi":"10.1145/2664551.2664553","DOIUrl":"https://doi.org/10.1145/2664551.2664553","url":null,"abstract":"KW-GPS is a system to assist users intent on enjoying Web resources related to a domain-restricted collection of stories. In this system, each story is referenced in a virtual library in terms of the following data: (1) the URLs of resources associated with the story, which include but are not limited to plot-summaries, narrative texts, and videos; and (2) keywords of different classes, which serve as a multi-aspect index mechanism. Library items also include story templates, representing narrative motifs. Furthermore, a reduced version of the tool runs the basic rank-and-show process on mobile devices.","PeriodicalId":114454,"journal":{"name":"Brazilian Symposium on Multimedia and the Web","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130893968","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
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