95 resultados para APPROXIMATE PROGRAMMING STRATEGY


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Dissertação para obtenção do Grau de Mestre em Engenharia Informática

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RESUMO: O Líbano é um pequeno país na costa leste do Mar Mediterrâneo, com uma população de aproximadamente 4.350.000 pessoas, incluindo 1,5 milhões de refugiados, 400 mil dos quais são palestinos atendidos pela UNRWA (Agência das Nações Unidas de Socorro aos Refugiados da Palestina) (UNHCR, 2013; OMS, 2010a). Desde 2012, um excedente de 1.000.000 refugiados sírios cruzaram a fronteira com o Líbano, representando um aumento populacional de aproximadamente 25%. Além disso, entre 1975 e 1990, a violenta guerra civil pela qual o Líbano passou, destruiu grande parte da infra-estrutura do país, incluindo os serviços de saúde. O sector da saúde, mais especificamente os serviços de saúde mental, é majoritariamente privado. Serviços especializados em Saúde Mental estão disponíveis em três hospitais psiquiátricos privados, e em 4 unidades psiquiátricas de hospitais gerais, que estão localizados centralmente em torno da capital, Beirute. O Líbano é um dos dois únicos países da região que não tem uma Política de Saúde Mental e um dos seis países que não têm uma Legislação em Saúde Mental. Nos últimos anos, a Saúde Mental está sendo colocada no topo da agenda nacional, apesar das contínuas questões políticas e de segurança. Baseando-se nas informações acima, um projecto de estratégia em Saúde Mental, conduzido pelo Ministério da Saúde e apoiado pela OMS, foi escrito para servir como um guia para trabalhar em diferentes aspectos relacionados tanto em saúde mental quanto em organização dos serviços, revisão de legislação, financiamento e proteção dos direitos humanos básicos dos usuários do serviço. Esta tese descreve o processo pelo qual o projecto de estratégia nacional de Saúde Mental foi desenvolvido, seus principais componentes, os próximos passos a serem tomados para a sua implementação, os desafios e as oportunidades para implementá-lo e propõe alguns passos iniciais a serem tomados em primeiro lugar.----------ABSTRACT: Lebanon is a small country on the eastern shore of the Mediterranean Sea with a population of approximately 4,350,000 including 1,500,000 refugees, 400,000 of whom are Palestinians served by UNRWA (the United Nations Relief and Works Agency for Palestine Refugees) (UNHCR, 2013; WHO, 2010a). Since 2012 an excess of 1,000,000 Syrian refugees have crossed the border into Lebanon accounting for approximately 25% increase in the population. In addition, from 1975 to 1990 Lebanon underwent a violent civil war that had also destroyed much of the country infrastructure including health services. The health sector, more so the mental health services, is mostly private. Specialized Mental Health services are available at three private mental hospitals, and 4 psychiatric units within general hospitals, which are located centrally around the capital, Beirut. Lebanon is one of only two countries of the region that does not have a Mental Health policy and one out of the six countries that does not have a Mental Health legislation. In recent years, Mental Health is getting placed higher on the national agenda despite the ever continuing political and security issues. Based on the above, A Mental Health strategy draft, lead by the Ministry of Health and supported by WHO, was written to serve as a guide to work on different aspects related to Mental Health from service organization, to the revision of legislation, financing and the protection of the basic human rights of service users. This thesis describes the process through which the national Mental Health draft strategy was developed, its main components, the next steps to be taken for its implementation, the challenges and the opportunities to implementing it and proposes a few initial steps to be taken first.

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The Intel R Xeon PhiTM is the first processor based on Intel’s MIC (Many Integrated Cores) architecture. It is a co-processor specially tailored for data-parallel computations, whose basic architectural design is similar to the ones of GPUs (Graphics Processing Units), leveraging the use of many integrated low computational cores to perform parallel computations. The main novelty of the MIC architecture, relatively to GPUs, is its compatibility with the Intel x86 architecture. This enables the use of many of the tools commonly available for the parallel programming of x86-based architectures, which may lead to a smaller learning curve. However, programming the Xeon Phi still entails aspects intrinsic to accelerator-based computing, in general, and to the MIC architecture, in particular. In this thesis we advocate the use of algorithmic skeletons for programming the Xeon Phi. Algorithmic skeletons abstract the complexity inherent to parallel programming, hiding details such as resource management, parallel decomposition, inter-execution flow communication, thus removing these concerns from the programmer’s mind. In this context, the goal of the thesis is to lay the foundations for the development of a simple but powerful and efficient skeleton framework for the programming of the Xeon Phi processor. For this purpose we build upon Marrow, an existing framework for the orchestration of OpenCLTM computations in multi-GPU and CPU environments. We extend Marrow to execute both OpenCL and C++ parallel computations on the Xeon Phi. We evaluate the newly developed framework, several well-known benchmarks, like Saxpy and N-Body, will be used to compare, not only its performance to the existing framework when executing on the co-processor, but also to assess the performance on the Xeon Phi versus a multi-GPU environment.

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Logoplaste is a specialist in operating in-house industrial sites for manufacturing rigid plastic packaging containers. In developing countries, especially in Africa, the low income of consumers does not allow a widespread adoption of products typically sold in rigid plastic containers. In these countries the flexible packages are usually adopted as they allow for better ratios of cost/litter of product, particularly in smaller packages. Should Logoplaste offer this type of technology in order to expand into developing countries?

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This paper designs a pairs trading model with the intent to identify existing profitable market opportunities to invest, i.e. traditionally strong correlated stocks that have diverged from its historical norm. It comprises a broad literature review on this strategy whose relevant findings (strategy improvements) are contemplated in the model. The authors combine the statistical results of the model with a backtesting analysis in order to provide guidance on the best investment opportunities.

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Skypro is a footwear brand targeted at the aviation professionals’ niche market, explored by the Portuguese microenterprise Abotoa Lda..The saturation of the Portuguese market led Skypro to expand to different worldwide countries and to be a footwear supplier of Airlines from the USA, Qatar or Australia, among others. Abotoa aims for its 2014’s exports to represent around 80% of total sales and this Internationalization Plan for Japan represents the possibility of further exploring the Asian market. Japan appears as the 2nd worldwide footwear importer and the 5th footwear consumer, with a high purchasing power – GDP per capita (PPP). This country possesses two enormous Airlines (ANA and JAL) that employ more than 15000 on-board personnel, the world’s 4th busiest Airport in 2013 (Tokyo’s Haneda International Airport) and a geographic structure with more than 6500 islands, implying high frequency of aerial transportation in the medium-run. These aspects make Japan an adequate country to invest in. At the course of this Work Project, trustworthy recommendations are provided for the current state of Abotoa and for the introduction and implementation of this Internationalization Plan. These findings strongly suggest that Skypro should indeed penetrate Japan’s market.

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Direct Research Internship Course

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This project attempts to provide an in-depth competitive assessment of the Portuguese indoor location-based analytics market, and to elaborate an entry-pricing strategy for Business Intelligence Positioning System (BIPS) implementation in Portuguese shopping centre stores. The role of industry forces and company’s organizational resources platform to sustain company’s competitive advantage was explored. A customer value-based pricing approach was adopted to assess BIPS value to retailers and maximize Sonae Sierra profitability. The exploratory quantitative research found that there is a market opportunity to explore every store area types with tailored proposals, and to set higher-than-tested membership fees to allow a rapid ROI, concluding there are propitious conditions for Sierra to succeed in BIPS store’s business model in Portugal.

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This project focuses on the study of different explanatory models for the behavior of CDS security, such as Fixed-Effect Model, GLS Random-Effect Model, Pooled OLS and Quantile Regression Model. After determining the best fitness model, trading strategies with long and short positions in CDS have been developed. Due to some specifications of CDS, I conclude that the quantile regression is the most efficient model to estimate the data. The P&L and Sharpe Ratio of the strategy are analyzed using a backtesting analogy, where I conclude that, mainly for non-financial companies, the model allows traders to take advantage of and profit from arbitrages.

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Machine ethics is an interdisciplinary field of inquiry that emerges from the need of imbuing autonomous agents with the capacity of moral decision-making. While some approaches provide implementations in Logic Programming (LP) systems, they have not exploited LP-based reasoning features that appear essential for moral reasoning. This PhD thesis aims at investigating further the appropriateness of LP, notably a combination of LP-based reasoning features, including techniques available in LP systems, to machine ethics. Moral facets, as studied in moral philosophy and psychology, that are amenable to computational modeling are identified, and mapped to appropriate LP concepts for representing and reasoning about them. The main contributions of the thesis are twofold. First, novel approaches are proposed for employing tabling in contextual abduction and updating – individually and combined – plus a LP approach of counterfactual reasoning; the latter being implemented on top of the aforementioned combined abduction and updating technique with tabling. They are all important to model various issues of the aforementioned moral facets. Second, a variety of LP-based reasoning features are applied to model the identified moral facets, through moral examples taken off-the-shelf from the morality literature. These applications include: (1) Modeling moral permissibility according to the Doctrines of Double Effect (DDE) and Triple Effect (DTE), demonstrating deontological and utilitarian judgments via integrity constraints (in abduction) and preferences over abductive scenarios; (2) Modeling moral reasoning under uncertainty of actions, via abduction and probabilistic LP; (3) Modeling moral updating (that allows other – possibly overriding – moral rules to be adopted by an agent, on top of those it currently follows) via the integration of tabling in contextual abduction and updating; and (4) Modeling moral permissibility and its justification via counterfactuals, where counterfactuals are used for formulating DDE.

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Quinta dos Termos, a Portuguese winery, currently faces the need to expand internationally due to difficulties in distributing its current production in Portugal. This work project will analyze the firm’s characteristics, its development in the Portuguese market and the value proposition it offers. A market analysis will also be performed prior to evaluating the internationalization need of Quinta dos Termos. The Canadian market will be assessed as an opportunity to expand internationally by evaluating factors supporting that strategy; namely the market attractiveness, the most adequate implementation plan and a competitive analysis to better understand the success expectations in the market.

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This Work Project was focused, firstly, in an internal analysis to assess the possible competitive advantage sources of the firm and to identify the key weakness that the firm should improve before advancing with the internationalization strategy. Completed the analysis was possible to verify that the source of sustainable competitive advantage of Relance is the use of specific raw materials and that its biggest weaknesses are the lack of capacity and the excessive dependence on key employees. Overall, it was possible to conclude that the firm is in position of competing in the international markets. Secondly, due to its crucial importance, the country selection was made with a deep objective analysis, resulting with the selection of Brazil as the country with the highest market potential. Regarding the strategy to actually enter in Brazil’s market, after the study of 12 modes of entry it was possible to conclude that there is no ideal mode. However, the study performed allowed to undertake the conclusion that in order to obtain long-term optimization on the process, the adaptation, to the firm´s situation, of the Uppsala model progressive stages is the ideal. At the course of this Work Project it was inferred that the critical success factors are the choice of the distributor and the promotion of Relance as a premium brand.