Unsupervised data clustering is not a trivial process, as no previous knowledge is available and real data is often complex and multi-faceted. To make matters worse, traditionally, clustering aims to describe the data ...

This work describes a new classification technique called P2C - Partitioning to Classify. The main goal is to achieve reasonable classification performances using linear prediction methods, even on datasets with non-linear ...

With the dissemination of mobile devices and the migration of activities that were once executed only on desktop computers to smartphones and tablets, the concerns related to accessibility in this environments have increased. ...

Monitoring tools have evolved over the years to keep support of advances in computer network technology, adapting to new paradigms such as virtualization, software orientation, and more recently a programmable data plan. ...

For the last decades, many Machine Learning methods have been proposed aiming categorizing data. Given many tentative models, those methods try to find the one that fits the dataset by building a hypothesis that predicts ...

The evolution of the interaction between humans and computers has accompanied the technological evolution of computers themselves. This process culminated in the rise of a subfield of computing called Questioning Answering ...

Virtualization is one of the foundations of cloud computing as it allows better utilization of computing resources in a data center. There are different virtualization approaches that offer similar functionality, but with ...

In a context where the most informations stored by the organizations is in the text format, the development of computer tools for knowledge discovery aimed to organization and information retrieval is a task that holds ...

The evolution of the Internet and the Web has given rise to a vast amount of text messages containing opinions. Although the importance of sentiment analysis has grown proportionately, the use of the traditional bag of ...

People with some kind of disability face a high level of difficulty for everyday tasks. This difficulty is due solely to the fact that in many cases accessibility was not considered necessary when the task was created. An ...