The growth usage of mobile technologies and devices such as smartphones and tablets, and the almost ubiquitous wireless communication set the stage for the development of novel kinds of applications. One possibility is exploiting this scenario in the field of education, so creating more intelligent, flexible and customizable systems. Mobile devices can be used to [...]
As ferramentas desenvolvidas com recursos de Processamento de Linguagem Natural apresentam crescentes possibilidades de apoiar trabalhos em diversas áreas. Uma das atividades em que este tipo de ferramenta pode ser bastante útil é a correção ortográfica. Entretanto ainda são escassos trabalhos desse tipo voltados à língua portuguesa. Neste trabalho, é apresentado o Certografia, um sistema [...]
Um Objeto de Aprendizagem (OA) é qualquer entidade ou recurso que possa ser utilizado no aprendizado auxiliado por computador. Podem ser textos, conteúdo multimídia, apresentações, programas ou qualquer outro tipo de conteúdo digital, normalmente disponibilizados em portais Web ou em sistemas de Ensino A Distância (EAD). Os OAs consultados por um aluno durante uma sessão [...]
Context: Model comparison plays a central role in many software engineering activities. However, a comprehensive understanding about the state-of-art is still required. Goal: This paper, therefore, aims at classifying, identifying publication fora, and performing thematic analysis of the current literature in model comparison for creating an extensive and detailed understanding about this area, thereby determining [...]
The evolution of computing technology and wireless networks has contributed to the miniaturization of mobile devices and their increase in power, providing services anywhere and anytime. In this scenario, applications have considered the user’s contexts to make decisions (Context Awareness). Context-aware applications have enabled new opportunities in different areas, for example, education, games and entertainment, [...]
Periods in the soybean summer cycle that are sensitive to the occurrence of high temperatures were studied. An analysis was performed on the variability of soybean yields associated with crop canopy temperatures during key development periods. A land surface temperature (LST) data series from MODIS (Moderate Resolution Imaging Spectroradiometer) on the Aqua satellite was processed [...]
Estimations of crop area were made based on the temporal profiles of the Enhanced Vegetation Index (EVI) obtained from moderate resolution imaging spectroradiometer (MODIS) images. Evaluation of the ability of the MODIS crop detection algorithm (MCDA) to estimate soybean crop areas was performed for fields in the Mato Grosso state, Brazil. Using the MCDA approach, [...]
Social networks provide a growing mean of communication that still preserves our human social interaction. Due to the widespread use of mobile devices, and the vast development of applications targeting these platforms, people tend to use their smartphone or tablet as the main way to make that interaction. Furthermore, applications developed to these devices are [...]
Este artigo aborda a Rede Social Educacional do Município de Novo Hamburgo, nomeada como RedEdu. A RedEdu está em desenvolvimento desde o início do ano de 2013, sendo uma ferramenta colaborativa e de socialização para a comunidade da Rede Municipal de Ensino. A rede é baseada em conceitos amplamente difundidos entre os usuários da Internet [...]
The lack of empirical knowledge about the effects of model composi-tion techniques on developers' effort is the key impairment for their widespread adoption in practice. This problem applies to both existing categories of model composition techniques, i.e. specification-based (e.g. Epsilon) and heuristic-based (e.g. IBM RSA) techniques. This paper reports on a controlled experiment that investigates [...]