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Cluster analysis is used in several research areas to classify data sets in groups by their similar characteristics. Metaheuristic-based techniques, such as Genetic Algorithms (GAs) and Ant Colony Optimization (ACO), have been applied in order to ...

This article presents the application of parallel computing techniques using a Graphics Processing Unit (GPU)in order to improve the computational efficiency of a ray tracing algorithm. Three different GPU implementations of the ray tracing algorithm ...

This paper presents a method for extracting information of genes and diseases, implemented for the Institut Pasteur in Uruguay, using NLP techniques. Because of the vast amount of information available in biomedical domain, using NLP techniques proves ...

Changing a phoneme of a voice signal as to imitate another one is a task that presents no dif?culty at all. However, calculating a set of sound effects that can change any phoneme of one voice into a corresponding phoneme of another target voice is a ...

The Service-Oriented Computing (SOC) paradigm has gained a lot of attention in the software industry since represents a novel way of architecting distributed applications. SOC is mostly materialized via Web Services, which allows developers to structure ...

Mutation based testing has been considered in many experiments as the most efficacious in terms of revealed faults, but also the most expensive, considering the number of executions. Other problem is that the test data are generally derived from the ...

The reference model of Competisoft is composed of nine processes and a work within the context of the project Competisoft established some validation and verification activities in the process Software Development. Software test tasks are considered in ...

Scrum is a widely known agile software process model specifically designed for guiding non-technical activities in software development. This process is formally defined in EPF and adopted by several software companies around the world. But having a ...

We present an approach using two dimensions to propagate security restrictions: along the lifecycle and along the architectural levels. We believe that this double propagation can be very effective for security. This approach can also facilitate the ...

Software Product Line (SPL) is one of the most adopted techniques to enable software reuse. Aspect-orientation (AOSD) has been investigated to implement variabilities in component-based SPL. This paper presents an experience on the implementation of SPL ...

Requirements engineering practices have been identified as a key issue that affects the success rate of projects in most software organizations. The software engineering community has studied the requirements engineering practices of medium and large-...

In the software engineering area, has been observed a growing concern to perform experimental studies to evaluate the use of new technologies. However, conducting experimental research is a complex and challenging activity, once it suffers impacts ...

Creation, interpretation, and evolution of models and diagrams are activities commonly performed in software projects, and the teaching of such activities is fundamental for software engineering education. However, it is difficult to see the changes ...

Component-based Software Development (CBD) has become recognized as an efficient and effective technique to develop complex software systems. Several component selection techniques already address either functional or non-functional requirements (NFRs), ...

The present work provides a novel approach for the simulation of software at early stage of its development, using its architecture. For this purpose, DEVS formalism is used to introduce the discrete event simulation advantages in the context of ...

ATAM is a widely known software architecture analysis method based on trade-offs of design decisions for coping with quality attribute requirements. Practically, all reported cases of applying ATAM refer mainly to software-intensive systems. However, ...

A domain-specific language DSL provides a notation tailored towards an application domain. The closer the language is to their target domain, the more useful the language is for developers. But this increment in the level of specificity raises the issue ...

Co-authorship graphs related to publications (bibliographical production) are generally represented by undirected graphs, where each edge maintains a single value for publications produced by the authors. A variation of this type of graph is related to ...

Generally, concepts are treated as individual-level phenomena. Here, we develop an ABM that treats concepts as group-level phenomena. We make simple assumptions: (1) Different versions exist of one similar conceptualization, (2) When we infer that our ...

In this paper an improved Fuzzy Rule-Based Trading Agent is presented. The proposal consists in adding machine-learning-based methods to improve the overall performance of an automated agent that trades in futures markets. The modified Fuzzy Rule-Based ...

Component-based development is a useful approach for building large, complex software systems. However, component discovery and component composition are quite complex and expensive tasks, due to the ever growing number of components in the market. This ...

The problem of demand-responsive passenger transportation is a subject covered from different perspectives (such as planning, user interfaces, optimization problem, etc). This work is focused on the simulation of events occurring in real time. That is, ...

In a multi-robot system, increasing the complexity of the tasks and work in unstructured spaces shows that a single robot is insufficient to meet the requirements of the goal, thus proliferating the use of robotic communities and cooperative methods and ...

Real-time search is a standard approach to solving search problems in which agents have limited sensing capabilities and must act quickly. It is well known that real-time search algorithms like LRTA* and RTA* perform poorly in regions of the search ...