The exponential growth of digital information production and dissemination, as well as its huge diversification, introduce considerable management and access challenges. At the same time, new opportunities have been created by the development and use of ...

The talk will be an introduction for researchers and developers to algorithms and systems for dealing with social media messages during time-critical events, with a focus on natural and man-made disasters. Current methods bring together computational ...

The talk will showcase the technology developed by CESNET for very high quality, low-latency media transmissions over high-speed networks and its applications in various fields including medicine, arts, broadcasting and cinematography, sports or ...

The workshop will provide an insight in solving real-world problems using the high-quality, low-latency media transmissions over (high-speed) networks and implemented by the UltraGrid and CoUniverse software developed by CESNET. During the workshop we'...

According to the efficient market hypothesis, financial prices are unpredictable. However, meaningful advances have been achieved on anticipating market movements using machine learning techniques. In this work, we propose a novel method to represent ...

This paper proposes a new method to compute the semantic distance among items in collaborative filtering based on k-nearest neighbors. This approach predicts the rating that a user u would give to an item i calculating the similarity between i and other ...

With the emergence of Information Extraction Systems driven by ontologies, boosted by the Semantic Web, there is a need for the development of scoring schemas that enable the automatic classification of information. These schemas, even so little ...

The growth of tourism associated with the development of information and communication technologies have changed the way people do tourism, because tourists now have several support tools at all stages of tourism. However, most of them do not consider ...

This paper presents a multimodal approach to perform content-based sentiment analysis in TV newscasts videos in order to assist in the automatic estimation of polarity tension of TV news. The proposed approach aims to contribute to the semiodiscoursive ...

In this paper we present the concept of a VLibras-Box, a building box for distributed sign-language translation infrastructures. A VLibras-Box encapsulates a Portuguese to Brazilian Sign Language translation service and additional components needed to ...

In this paper we conceptualize and define the QD Framework, a generic solution to manage a set of mirror servers, enabling a specific online service to be offered on the web with a better availability and success rate for requests. The framework includes ...

Web Service composition is a complex and error-prone process that requires the support of software tools in order to become feasible. Composition tools can help a developer to select compatible services from vast service repositories, taking into ...

The emergency response process is quite complex since there is a wide variety of elements to be evaluated for taking decisions. Uncertainties generated by subjectivity and imprecision affect the safety and effectiveness of actions. The aim of this paper ...

The tourism sector in Brazil has grown considerably in recent years. Despite this growth, the sector still presents several problems such as the lack of information in Portuguese and in other languages for Brazilian and foreign tourists. The absence of ...

Sentiment analysis has been applied in many contexts, including user reviews analysis on products and services, trends and financial market moods. Established methods for sentiment analysis present a behavior that varies according to the application and ...

The use of social networks and the Web is growing every day, generating a lot of data that can aggregate value to different applications. In financial market, there is a need to better understand the situations that occur in the capital market, through ...

A current challenge of mobile computing is the need to an infrastructure that, in development-time, allows applications can dinamically adapt itself to the scenario. One of approaches that allows this infrastructure is the component-based middleware ...

Arranging interface components in a layout model, like a grid, is frequently supported in programming languages. However, in multimedia authoring declarative languages, those facilities are not provided and authors should declare presentation ...

The Web of Things is a proposal to make physical and connected devices available to be used as resources in the development of Web applications through the Web protocols and standards. On the one hand, the current Web has virtual content, which is ...

The Web of Things (WoT) is a new paradigm regarding the integration of the real world objects to the virtual world through the Web. This paradigm enables the development of powerful applications and services. In this context, security of data users and ...