作者：
Magdaleno, Andréa MagalhãesCOPPE/PESC
System Engineering and Computer Science Program UFRJ PO Box 68511 21945-970 Rio de Janeiro RJ Brazil NP2Tec
Research and Practice Group in Information Technology UNIRIO Brazil
Neither traditional, agile or free/open software development models can be effective to all projects contexts. We claim that collaboration and discipline can be the driver to tailor software development processes to m...
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Collaboration networks are social networks in which relationships represent some kind of professional collaboration. The study of collaboration networks can help identify members that are important or influential with...
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Collaboration networks are social networks in which relationships represent some kind of professional collaboration. The study of collaboration networks can help identify members that are important or influential within a given community. This work is divided into two parts. The first part is a study of the topological properties of two collaboration networks: the global collaboration network and the Brazilian collaboration network of authors of scientific papers within the area of computerscience. The second part presents a ranking metric for vertices based on the intensities of their relationships. Using the proposed metric and other more classical metrics, we rank the researchers in Brazil in computerscience. The proposed metric was compared with subjective evaluation of researchers made by CNPq. The results show the effectiveness of the proposed metric in identifying influential researchers when compared to another metrics in the literature.
Neither traditional, agile or free/open software development models can be effective to all projects contexts. We claim that collaboration and discipline can be the driver to tailor software development processes to m...
详细信息
Neither traditional, agile or free/open software development models can be effective to all projects contexts. We claim that collaboration and discipline can be the driver to tailor software development processes to meet projects and organizations needs. This work proposes that process tailoring can be conducted through a context management approach.
The reproduction of the movements of a ship by automated platforms, without the use of sensors providing exact data related to the numeric variables involved, is a non-trivial matter. The creation of an artificial vis...
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ISBN:
(纸本)9781424478149
The reproduction of the movements of a ship by automated platforms, without the use of sensors providing exact data related to the numeric variables involved, is a non-trivial matter. The creation of an artificial vision system that can follow the cadence of said ship, in six axes of freedom, is the goal of this research. Considering that a real time response is a requisite in this case, it was decided to adopt a Boolean artificial neural network system that could identify and follow arbitrary interest points that could define, as a group, a model of the movement of an observed vessel. This paper describes the development of a prototype based on the Boolean perceptron model WiSARD (Wilkie, Stonham and Aleksander's Recognition Device), that is being implemented in the C programming language on a desktop computer using a regular webcam as input.
Active modeling is required in learning settings to cope with the dynamic evolution of the knowledge, since learners competences evolves over time as they participate in the course activities. Moreover, one of the mai...
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ISBN:
(纸本)9781424444823
Active modeling is required in learning settings to cope with the dynamic evolution of the knowledge, since learners competences evolves over time as they participate in the course activities. Moreover, one of the main issues in a competence based eLearning process is to deliver personalized instructional designs adjusted to both 1) intrinsic characteristics of users (i.e. learning styles) and 2) the desired and achieved competences in the learning process (i.e. specific and generic competences). This delivery includes the adaptation of the content and the activities in a learning scenario based on a dynamic user model that evolves according to user interactions. In this paper, an approach to support Conditional Plans Generation (IMS Learning Designs) in the context of a virtual learning environment is presented The process is supported by a pervasive usage of standards and specifications (IMS family of specifications) in conjunction with an integral user modeling.
Parallel rendering algorithms usually suffer from high load imbalance during execution, due to the irregular nature of the datasets. In this paper, we propose a new load balancing scheme for tile-based parallel render...
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Parallel rendering algorithms usually suffer from high load imbalance during execution, due to the irregular nature of the datasets. In this paper, we propose a new load balancing scheme for tile-based parallel rendering that includes strategies for load estimation, tile decomposition and tile assignment. The load estimation strategy computes the rendering cost for each pixel, and uses it as a prediction for the next frame. The tile decomposition strategy adaptively divides the screen into tiles based on the computed costs, until an evenly tile partition is achieved. The tile assignment strategy distributes the tiles among rendering processors, based on a 2-optimal scheduling. Experimental results show that our scheme achieves significant performance gains by reducing the load imbalance when compared to the traditional tile subdivision and static random distribution schemes.
Laboratory experiments were conducted to investigate the run-up of internal solitary waves (ISWs) on steep uniform slopes in a two-layered fluid system with a free surface. A 12 m long wave flume, which incorporated a...
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Active modeling is required in learning settings to cope with the dynamic evolution of the knowledge, since learners competences evolves over time as they participate in the course activities. Moreover, one of the mai...
详细信息
Active modeling is required in learning settings to cope with the dynamic evolution of the knowledge, since learners competences evolves over time as they participate in the course activities. Moreover, one of the main issues in a competence based eLearning process is to deliver personalized instructional designs adjusted to both 1) intrinsic characteristics of users (i.e. learning styles) and 2) the desired and achieved competences in the learning process (i.e. specific and generic competences). This delivery includes the adaptation of the content and the activities in a learning scenario based on a dynamic user model that evolves according to user interactions. In this paper, an approach to support Conditional Plans Generation (IMS Learning Designs) in the context of a virtual learning environment is presented. The process is supported by a pervasive usage of standards and specifications (IMS family of specifications) in conjunction with an integral user modeling.
This paper presents a remotely accessible Telecom Intelligent Network (IN) simulator, centered on the Basic Call State Mode (BCSM). This model is a Finite State Machine which describes the behavior of IN services in t...
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ISBN:
(纸本)9783940793171
This paper presents a remotely accessible Telecom Intelligent Network (IN) simulator, centered on the Basic Call State Mode (BCSM). This model is a Finite State Machine which describes the behavior of IN services in the call processing. The simulator is dedicated to the students in Telecom and allows them to get acquainted with the operation of the IN Service Control Point (SCP) in different scenarios they can imagine.
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