854 resultados para software performance evaluation


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Quality management Self-evaluation of the organisation Citizens/customers satisfaction Impact on society evaluation Key performance evaluation Good practices comparison (Benchmarking) Continuous improvement In professional environments, when quality assessment of museums is discussed, one immediately thinks of the honourableness of the directors and curators, the erudition and specialisation of knowledge, the diversity of the gathered material and study of the collections, the collections conservation methods and environmental control, the regularity and notoriety of the exhibitions and artists, the building’s architecture and site, the recreation of environments, the museographic equipment design. We admit that the roles and attributes listed above can contribute to the definition of a specificity of museological good practice within a hierarchised functional perspective (the museum functions) and for the classification of museums according to a scale, validated between peers, based on “installed” appreciation criteria, enforced from above downwards, according to the “prestige” of the products and of those who conceive them, but that say nothing about the effective satisfaction of the citizen/customers and the real impact on society. There is a lack of evaluation instruments that would give us a return of all that the museum is and represents in contemporary society, focused on being and on the relation with the other, in detriment of the ostentatious possession and of the doing in order to meet one’s duties. But it is only possible to evaluate something by measurement and comparison, on the basis of well defined criteria, from a common grid, implicating all of the actors in the self-evaluation, in the definition of the aims to fulfil and in the obtaining of results.

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As grandes mudanças organizacionais existentes na administração pública exigem cada vez mais uma reavaliação constante do formato de gestão, obrigando a uma missão consistente e a uma visão contínua. Nesta abordagem, o presente estudo visa demonstrar a importância que a avaliação de desempenho representa no seio da administração local. É objetivo central deste trabalho, avaliar o impacto da aplicação da avaliação de desempenho na Administração Local - Sistema Integrado de Avaliação de Desempenho na Administração Pública (SIADAP), bem como as políticas e práticas de Recursos Humanos aplicadas: a formação e a comunicação. Pretende-se, ainda, perceber até que ponto estes fatores contribuem para a compreensão do SIADAP. Para tal, utilizamos uma metodologia qualitativa para analisar e comparar as perspetivas dos avaliados e avaliadores de forma a perceber diferenças em relação aos diversos perfis funcionais. Os resultados apontam no sentido de que a monitorização dos objetivos e competências durante o processo de avaliação de desempenho influencia o modo como os avaliados classificam o sistema de Avaliação de Desempenho (SIADAP). Permitiu conhecer, sob o ponto de vista dos avaliadores, a sua perceção sobre o sistema como instrumento na promoção de uma cultura de mérito. Por fim, possibilitou recolher a opinião de avaliados e avaliadores sobre as quatro grandezas em estudo (subjetividade, importância, avaliação e satisfação), o que contribuiu para uma melhor compreensão desta temática, bem como da sua influência no desenvolvimento das pessoas e das organizações.

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A presente investigação incide no estudo da Satisfação com a Avaliação de Desempenho e o Comprometimento Afectivo. A Avaliação de Desempenho é um tema actual e que tem vindo a ser bastante investigado considerando que oferece às empresas instrumentos que medem a relação dos colaboradores com a sua função. Segundo pesquisas recentes existe uma importante relação entre a Satisfação com a Avaliação de Desempenho e o Comprometimento Afectivo (Kuuvas, 2006; Vignaswaran,2005; Cook & Crossman, 2005). Os resultados obtidos na análise das hipóteses colocadas permitiram identificar a existência de uma influência significativa entre a Satisfação com a Avaliação de Desempenho e o Comprometimento Afectivo. Na Satisfação com o Chefe foram identificadas relações com a Satisfação com a Avaliação de Desempenho e com o Comprometimento Afectivo. Na Satisfação com a Avaliação de Desempenho foi identificada uma relação de influência com o Desempenho. Por último, foi estabelecido uma relação significativa entre a Satisfação com o Chefe e o Desempenho mediada pela Satisfação com a Avaliação de Desempenho. Os resultados levaram à confirmação do modelo em análise, estando este linha com o quadro teórico estabelecido. Foram discutidos algumas das implicações dos resultados obtidos e sugestões futuras.

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O SIADAP, Sistema de Avaliação do Desempenho na Administração Pública, surge como um novo paradigma de avaliação do desempenho, estratégico para a gestão das organizações do sector público, porque tem sido um enorme desafio para os serviços que o têm implementado, ou para os que ainda não o conseguiram fazer. Este trabalho pretende avaliar as opiniões de avaliadores e avaliados, relativamente ao sistema e à sua implementação numa autarquia. A abordagem metodológica seguida para a sua realização, foi uma análise qualitativa. O processo seguido foi o de realização de entrevistas gravadas com a finalidade de recolher a informação necessária ao desenvolvimento da dissertação. Foram estabelecidos os seguintes objetivos de trabalho: Apresentar e caracterizar o SIADAP, conhecer e analisar as opiniões dos avaliados e dos avaliadores em relação ao processo SIADAP, no que respeita ao seu conhecimento e experiência dos sistemas de avaliação, à importância atribuída e dificuldades na aplicação do atual processo de Avaliação do Desempenho dos Trabalhadores da Administração Pública, o papel da avaliação do desempenho enquanto ferramenta de gestão de recursos humanos, e instrumento de apoio na promoção de uma cultura de mérito. Para avaliadores e avaliados, o sistema apresenta uma avaliação globalmente positiva e com oportunidades de melhoria, embora existam pontos fracos e constrangimentos que não podem ser ignorados.

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Several pixel-based people counting methods have been developed over the years. Among these the product of scale-weighted pixel sums and a linear correlation coefficient is a popular people counting approach. However most approaches have paid little attention to resolving the true background and instead take all foreground pixels into account. With large crowds moving at varying speeds and with the presence of other moving objects such as vehicles this approach is prone to problems. In this paper we present a method which concentrates on determining the true-foreground, i.e. human-image pixels only. To do this we have proposed, implemented and comparatively evaluated a human detection layer to make people counting more robust in the presence of noise and lack of empty background sequences. We show the effect of combining human detection with a pixel-map based algorithm to i) count only human-classified pixels and ii) prevent foreground pixels belonging to humans from being absorbed into the background model. We evaluate the performance of this approach on the PETS 2009 dataset using various configurations of the proposed methods. Our evaluation demonstrates that the basic benchmark method we implemented can achieve an accuracy of up to 87% on sequence ¿S1.L1 13-57 View 001¿ and our proposed approach can achieve up to 82% on sequence ¿S1.L3 14-33 View 001¿ where the crowd stops and the benchmark accuracy falls to 64%.

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This paper describes the crowd image analysis challenge that forms part of the PETS 2009 workshop. The aim of this challenge is to use new or existing systems for i) crowd count and density estimation, ii) tracking of individual(s) within a crowd, and iii) detection of separate flows and specific crowd events, in a real-world environment. The dataset scenarios were filmed from multiple cameras and involve multiple actors.

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This paper describes the crowd image analysis challenge that forms part of the PETS 2009 workshop. The aim of this challenge is to use new or existing systems for i) crowd count and density estimation, ii) tracking of individual(s) within a crowd, and iii) detection of separate flows and specific crowd events, in a real-world environment. The dataset scenarios were filmed from multiple cameras and involve multiple actors.

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Information services play a crucial role in grid environments in that the state information can be used to facilitate the discovery of resources and the services available to meet user requirements, and also to help tune the performance of a grid system. However, the large size and dynamic nature of the grid brings forth a number of challenges for information services. This paper presents PIndex, a grouped peer-to-peer network that can be used for scalable grid information services. PIndex builds on Globus MDS4, but introduces peer groups to dynamically split the large grid information search space into many small sections to enhance its scalability and resilience. PIndex is subsequently modeled with Colored Petri Nets for performance evaluation. The simulation results show that PIndex is scalable and resilient in dealing with a large number of peer nodes.

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The work reported in this paper is motivated towards handling single node failures for parallel summation algorithms in computer clusters. An agent based approach is proposed in which a task to be executed is decomposed to sub-tasks and mapped onto agents that traverse computing nodes. The agents intercommunicate across computing nodes to share information during the event of a predicted node failure. Two single node failure scenarios are considered. The Message Passing Interface is employed for implementing the proposed approach. Quantitative results obtained from experiments reveal that the agent based approach can handle failures more efficiently than traditional failure handling approaches.

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This paper presents a virtual headstick system as an alternative to the conventional passive headstick for persons with limited upper extremity function. The system is composed of a pair of kinematically dissimilar master-slave robots with the master robot being operated by the user's head. At the remote site, the end-effector of the slave robot moves as if it were at the tip of an imaginary headstick attached to the user's head. A unique feature of this system is that through force-reflection, the virtual headstick provides the user with proprioceptive information as in a conventional headstick, but with an augmentation of workspace volume and additional mechanical power. This paper describes the test-bed development, system identification, bilateral control implementation, and system performance evaluation.

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There is a rising demand for the quantitative performance evaluation of automated video surveillance. To advance research in this area, it is essential that comparisons in detection and tracking approaches may be drawn and improvements in existing methods can be measured. There are a number of challenges related to the proper evaluation of motion segmentation, tracking, event recognition, and other components of a video surveillance system that are unique to the video surveillance community. These include the volume of data that must be evaluated, the difficulty in obtaining ground truth data, the definition of appropriate metrics, and achieving meaningful comparison of diverse systems. This chapter provides descriptions of useful benchmark datasets and their availability to the computer vision community. It outlines some ground truth and evaluation techniques, and provides links to useful resources. It concludes by discussing the future direction for benchmark datasets and their associated processes.

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School effectiveness is a microtechnology of change. It is a relay device, which transfers macro policy into everyday processes and priorities in schools. It is part of the growing apparatus of performance evaluation. Change is brought about by a focus on the school as a site-based system to be managed. There has been corporate restructuring in response to the changing political economy of education. There are now new work regimes and radical changes in organizational cultures. Education, like other public services, is now characterized by a range of structural realignments, new relationships between purchasers and providers and new coalitions between management and politics. In this article, we will argue that the school effectiveness movement is an example of new managerialism in education. It is part of an ideological and technological process to industrialize educational productivity. That is to say, the emphasis on standards and standardization is evocative of production regimes drawn from industry. There is a belief that education, like other public services can be managed to ensure optimal outputs and zero defects in the educational product.

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Demands for thermal comfort, better indoor air quality together with lower environmental impacts have had ascending trends in the last decade. In many circumstances, these demands could not be fully covered through the soft approach of bioclimatic design like optimisation of the building orientation and internal layout. This is mostly because of the dense urban environment and building internal energy loads. In such cases, heating, ventilation, air-conditioning and refrigeration (HVAC&R) systems make a key role to fulfill the requirements of indoor environment. Therefore, it is required to select the most proper HVAC&R system. In this study, a robust decision making approach for HVAC&R system selection is proposed. Technical performance, economic aspect and environmental impacts of 36 permutations of primary and secondary systems are taken into account to choose the most proper HVAC&R system for a case study office building. The building is a representative for the dominant form of office buildings in the UK. Dynamic performance evaluation of HVAC&R alternatives using TRNSYS package together with life cycle energy cost analysis provides a reliable basis for decision making. Six scenarios broadly cover the decision makers' attitudes on HVAC&R system selection which are analysed through Analytical Hierarchy Process (AHP). One of the significant outcomes reveals that, despite both the higher energy demand and more investment requirements associated with compound heating, cooling and power system (CCHP); this system is one of the top ranked alternatives due to the lower energy cost and C02 emissions. The sensitivity analysis reveals that in all six scenarios, the first five top ranked alternatives are not changed. Finally, the proposed approach and the results could be used by researchers and designers especially in the early stages of a design process in which all involved bodies face the lack of time, information and tools for evaluation of a variety of systems.