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While design patterns are tested and verified solutions to common design problems, pre-patterns are new solutions to design issues in emerging applications. This paper aims to evaluate the application of pre-patterns to the design specification of the interaction of an application for interactive digital television. An amount of 23 pre-patterns were defined in previous works, and in this work an evaluation...
The MPS.BR is a program to help improve the processes of software development mainly in small and medium-sized organizations, however it does not determine how processes should be defined to reach a certain degree of maturity. From another perspective, there is growing acceptance and records of success in the use of agile methods, mainly in MSEs (micro and small-sized enterprises of software development)...
This paper aims to present and analyze an approach called DIRCE for Requirements Elicitation and Design of Interaction focusing on the Communication and Exploration of ideas. This approach enables professionals focus on interaction aspects since the early stages of the process of development of an innovative system. Such approach has been applied in digital TV content creation systems. In this paper,...
This paper presents a descriptive study to obtain information on the career of the graduates in the Computer Science Department at the Catholic University Andrés Bello in Caracas. From the first class in 2001, to the most recent data in 2012, 696 professionals have graduated. So far, any department has not done a study of this nature within the university. This project is based on previous works made...
A research area in Computer Vision focuses on the identification of articulated objects, such as human actions and movements of the hand, which can be used in human-computer interaction, surveillance, and other tracking systems. Two problems arise: identify when two articulated objects in different stances are in the same class of objects, and differentiate the distinct positions of the same object...
Knowledge management is becoming increasingly important in creating value and sustainable competitive advantage in organization. Achieving an efficient knowledge management depends on how its different phases are implemented as well as certain critical success factors. Because of this, the purpose of this article is to report a systematic mapping of the literature to identify, extract and categorize...
The use of social networks in Brazil has been increasing on different groups of people. Although the high concentration of users are in the 20–40 years-old group there is an expansion in the group of people over 50 years which use social networks. These different groups have their own needs during the interaction with different social networks. The goal of this work is to present the results of a...
An Ambient Intelligence (AmI) requires a conceptual definition of its components, its devices must handle a common semantic for reasoning about context and specific application domains. Ontology is an ideal tool for the semantic characterization of AmI. In that sense, update and evolution of each ontology should be in the same moment when information changes in the environment and the application...
Performing Bioinformatic's experiments involve an intensive access to distributed services and information resources through Internet. Existing tools facilitate the implementation of workflow-oriented applications, however they lack of capabilities to integrate services beyond low-scale applications, particularly integrating services with heterogeneous interaction patterns and in a larger scale. On...
A major endeavor of ecology is to understand the emergence of complexity. This task requires the integration of knowledge and theories, moving from physical to social sciences. We use genetic programming to develop mathematical relationships between ecological emergence and variables such as self-organization, homeostasis, autopoiesis and complexity. These variables were initially formalized on the...
Electronic Program Guides (EPGs) describe broadcast programming information provided by TV stations. However, users may obtain more information when these guides have been enriched. The main contribution of this work is to present an automation process for EPG's information enrichment through the use of semantic technologies and external resources. Among the several resources involved in the enrichment...
In mobile robots navigation, there are two main topics: reaching a goal and avoiding obstacles on the path. However, a relevant problem in autonomous navigation is dealing with a lot of uncertainty in the environment. The fuzzy logic is a popular method used by most researchers and it can deal with uncertainty, proximity or uncompleted information. In this work, we present an approach with a safe...
There is a growing tendency in modern enterprises to understand business activities from a service-oriented perspective. The alignment of business and service-oriented architectures, and the provision of methods or techniques to help in such gap have become, therefore, crucial aspects in service-oriented software development. In this work we present a proposal that aim to solve this gap by means of...
In the context of productive sustainability of animal textile fibers, the possibility to achieve safe and inexpensive methods allowing to measure fiber quality is paramount for farmers pretending to compete in local and international markets. Using an image of a longitudinal cut of camelid fibers, we propose a computational method in which a Hierarchical Temporary Memory algorithm recognizes and identifies...
Face recognition systems (FRS) have been widely studied and the performances reported are very high in the standard databases used for comparison. In this work we present a FRS that achieves state of the art results in these databases and show its performance's variation when tested in a field trial using a citizen identification database. To accomplish this, a set of experiments are proposed. These...
The performence of centralized and distributed routing in wavelength converter allocation problem are studied in this work. The distributed routing is based on selfish routing in which each connection tries to improve its blocking probability. In counterpart, in centralized management, the routing of connexions are calculated by cooperative approach to improve the overall blocking probability of system...
Information Technology (IT) is an integral part of modern culture and are the main driver for development and innovation in the economic and social world. The Colombian local context is no stranger to the trend in IT investments, which are strongly led by the government through the Ministry of ICT through provision of infrastructure, policy and some state programs. This paper gives an overview of...
Green IT and computing are key areas to contribute with the environment sustainability. Recent researches have been exploring tools, practices, process, frameworks, reference models in Green IT, as well as they are mitigating the impact of the technology on the user of raw materials, electrical energy costs, greenhouse gas emissions or generation e-waste. Sizing up earnings and costs of green practices...
This paper presents the development of a distributed computing framework based on standard web technologies. The workload is specified as Javascript code, split into pieces served via HTTP and executed by web workers inside the clients' web browser. Initially developed to run genetic algorithms in a parallel fashion, our implementation has been generalized into a system powerful enough to run any...
The development of complex dynamic systems require studies and analysis prior to deployment with the goal of detecting unwanted behavior. UML is a language widely used for modeling these systems through state machines, among other mechanisms. Currently, these models do not have appropriate execution and simulation tools to analyze the real behavior of systems. Modeling and simulation for design and...
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