Automated traffic route identification through the shared nearest neighbour algorithm

Many organisations need to extract useful information from huge amounts of movement data. One example is found in maritime transportation, where the automated identification of a diverse range of traffic routes is a key management issue for improving the maintenance of ports and ocean routes, and accelerating ship traffic. This paper addresses, in a first stage, the research challenge of developing an approach for the automated identification of traffic routes based on clustering motion vectors rather than reconstructed trajectories. The immediate benefit of the proposed approach is to avoid the reconstruction of trajectories in terms of their geometric shape of the path, their position in space, their life span, and changes of speed, direction and other attributes over time. For clustering the moving objects, an adapted version of the Shared Nearest Neighbour algorithm is used. The motion vectors, with a position and a direction, are analysed in order to identify clusters of vectors that are moving towards the same direction. These clusters represent traffic routes and the preliminary results have shown to be promising for the automated identification of traffic routes with different shapes and densities, as well as for handling noise data.

O trabalho em equipas docentes e o desenvolvimento da Educação Física

RESUMO: O sucesso das respostas aos novos desafios, exigências e expectativas que, nos dias de hoje, recaem sobre a escola, parece depender da concepção das estratégias organizacionais que globalmente a escola define, tendo em conta as características do contexto e das populações que serve. Depende por isso do modo como os actores chave se organizam e trabalham. Os modos de entender o trabalho docente em equipa prenunciam formas de entender a acção educativa e de conduzir a aprendizagem dos alunos. Tomando como ponto de partida as nossas experiências profissionais, este trabalho constitui uma reflexão sobre as possibilidades de desenvolvimento da Educação Física, baseada na escola e sustentada na organização do trabalho dos seus professores. Elaborando uma síntese dos principais problemas do seu desenvolvimento discutem-se as possibilidades e as vantagens da organização do trabalho dos professores em equipas, num contexto organizacional marcado por avanços e retrocessos nos processos de descentralização e atribuição de autonomia às escolas. Enquadra-se a organização do trabalho docente no âmbito das culturas de escola. Revisita-se o conceito de trabalho em equipa, distinguindo-o da simples participação nas estruturas da escola, realçando a sua importância na construção e gestão de conhecimento profissional através do estabelecimento de parcerias sinérgicas, onde o desempenho de papéis de liderança tem uma enorme importância. ABSTRACT: Successful responses to the new challenges, demands and expectations that currently are ascribed to schools seem to depend on the design of organizational strategies that broadly define the school, taking into account the characteristics of its context and the population it serves. Therefore, their success depends on how the key players are organized and work. The ways of perceiving the teaching team work forecast the ways of understanding the educational activity and how to lead learning. Starting from our own professional experience, this study is a reflection on the school based development of physical education, sustained by the organization of their teachers’ work. On organizing a summary of the major problems found in the development of this subject, we discuss the feasibilities and the gains got from the organization of teachers' teamwork, in an organizational context marked by promises and setbacks in the processes of decentralization and schools autonomy. The organization of teaching is to be seen as part of the school culture. We review the concept of teamwork as distinct from mere participation in the structures of the school, and its importance in the construction and management of professional knowledge will be highlighted by the establishment of synergistic partnerships, in which the performance of leadership roles is of the greatest importance. RÉSUMÉ: Le succès des réponses aux nouveaux défis, les exigences et les attentes que dans ces jours, s’accomplissent sur l'école, semble dépendre de la conception des stratégies d'organisation qui définit de façon générale l'école, en tenant compte des caractéristiques du contexte et des populations qu'elle dessert. Tout cela dépend donc de la façon dont les acteurs principaux sont organisés et travaillent. Les façons de comprendre l'équipe pédagogique démontrent des formes de comprendre l'activité éducative et de conduire à l'apprentissage des élèves. En prenant comme point de départ nos expériences professionnelles, ce travail est une réflexion sur le potentiel de développement de l'Éducation Physique, dépendante de l'école et soutenue dans l'organisation du travail de leurs enseignants. En préparant une synthèse des principaux problèmes de leur développement, on discute les possibilités et les avantages de l'organisation du travail des enseignants dans les équipes, dans un contexte organisationnel marqué par des avancées et des reculs dans le processus de décentralisation et l'accomplissement de l'autonomie aux écoles. On encadre l'organisation du travail des enseignants dans le champ des cultures de l’école. On revoit le concept du travail en équipe, en le distinguant de la simple participation dans les structures de l'école, en soulignant son importance dans la construction et gestion des connaissances professionnelles à travers l'établissement de partenariats synergiques, où les rôles de leadership joue un rôle d'une grande importance.

Looking the organization's "backstages": political leadership in health organizations

Although leadership investigation has become for the last years an election topic with major relevance on organizational studies and accepting peacefully the general idea that organizations are freeland for politics, all these acceptances run against a kind of “fear” from the academy scholars on approaching the political leaderships’ singularities on organizations. Indeed, when we cross over both phenomena we verify that the absence and weaknesses towards the unique characteristics of political leadership on work scenarios are becoming sharped regarding to their predictors, their workers and their organizations, even if we left aside its moderator variables.

Supporting leadership development by exposure to role models: two case studies

The idiomatic expression “In Rome be a Roman” can be applied to leadership training and development as well. Leaders who can act as role models inspire other future leaders in their behaviour, attitudes and ways of thinking. Based on two examples of current leaders in the fields of Politics and Public Administration, I support the idea that exposure to role models during their training was decisive for their career paths and current activities as prominent characters in their profession. Issues such as how students should be prepared for community or national leadership as well as cross-cultural engagement are raised here. The hypothesis of transculturalism and cross-cultural commitment as a factor of leadership is presented. Based on current literature on Leadership as well as the presented case studies, I expect to raise a debate focusing on strategies for improving leaders’ training in their cross-cultural awareness.

Balanced scorecard: estudo de caso de uma empresa de serviços de gestão

Dissertação para a obtenção do Grau de Mestre em Contabilidade e Finanças Orientadora: Doutora Cláudia Lopes

Organizações e lideranças positivas: estudo empírico

Dissertação de Mestrado, Ciências Económicas e Empresariais, 9 de Janeiro de 2014, Universidade dos Açores.

Creating shared value – a nova abordagem estratégica de Responsabilidade social empresarial

Dissertação de Mestrado apresentada ao Instituto Supeior de Contabilidade e Administração do Porto para a obtenção do grau de Mestre em Marketing Digital, sob a orientação da Doutora Sandrina Francisca Teixeira

O Balanced Scorecard como instrumento de gestão estratégica e a sua implementação na 3S, Solvay Shared Services

Mestrado em Contabilidade e Gestão das Instituições Financeiras

E-Learning as a shared service in shared services centers

Book Subtitle International Conference, CENTERIS 2010, Viana do Castelo, Portugal, October 20-22, 2010, Proceedings, Part II

Music and drama in primary schools in the Madeira Island - Narratives of ownership and leadership

Este artigo foi uma das publicações resultantes do projeto financiado pela FCT "Música e Drama no 1º ciclo do Ensino básico – o caso da Região Autónoma da Madeira" (PTDC/CED/72112/2006).

Flexibility in a Stackelberg leadership with differentiated goods

We study the effects of product differentiation in a Stackelberg model with demand uncertainty for the first mover. We do an ex-ante and ex-post analysis of the profits of the leader and of the follower firms in terms of product differentiation and of the demand uncertainty. We show that even with small uncertainty about the demand, the follower firm can achieve greater profits than the leader, if their products are sufficiently differentiated. We also compute the probability of the second firm having higher profit than the leading firm, subsequently showing the advantages and disadvantages of being either the leader or the follower firm.

Maintenance and destrcution of R&D leadership

In the standard Schumpeterian-growth models only follower firms invest in R&D activities and larger economies grow faster. Since these results are counterfactual, this paper reveals that leader firms often support R&D activities and economic growth can be independent of the market size. In particular, the maintenance of R&D leadership increases with: (i) the technological-knowledge gap between leader and followers, since a firm-specific learning effect of accumulated technological knowledge from past R&D is considered, (ii) the leaders’ strategies that delay the next successful R&D supported by some follower firm, (iii) the market size, and (iv) the up-grade of each innovation.

Response time analysis of COTS-Based multicores considering the contention on the shared memory bus

The current industry trend is towards using Commercially available Off-The-Shelf (COTS) based multicores for developing real time embedded systems, as opposed to the usage of custom-made hardware. In typical implementation of such COTS-based multicores, multiple cores access the main memory via a shared bus. This often leads to contention on this shared channel, which results in an increase of the response time of the tasks. Analyzing this increased response time, considering the contention on the shared bus, is challenging on COTS-based systems mainly because bus arbitration protocols are often undocumented and the exact instants at which the shared bus is accessed by tasks are not explicitly controlled by the operating system scheduler; they are instead a result of cache misses. This paper makes three contributions towards analyzing tasks scheduled on COTS-based multicores. Firstly, we describe a method to model the memory access patterns of a task. Secondly, we apply this model to analyze the worst case response time for a set of tasks. Although the required parameters to obtain the request profile can be obtained by static analysis, we provide an alternative method to experimentally obtain them by using performance monitoring counters (PMCs). We also compare our work against an existing approach and show that our approach outperforms it by providing tighter upper-bound on the number of bus requests generated by a task.

A 12*(1+|R|/(4m))-speed algorithm for scheduling constrained-deadline sporadic real-time tasks on a multiprocessor comprising m processors where a task may request one of |R| sequentially-reusable shared resources

We present a 12*(1+|R|/(4m))-speed algorithm for scheduling constrained-deadline sporadic real-time tasks on a multiprocessor comprising m processors where a task may request one of |R| sequentially-reusable shared resources.