Global optimization

Xem 1-20 trên 82 kết quả Global optimization
  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Video coding using arbitrarily shaped block partitions in globally optimal perspective

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  • Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học Journal of Biology đề tài: Research Article Global Optimal Regularity for the Parabolic Polyharmonic Equations

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  • Optimization has become pervasive in medicine. The application of computing to medical applications has opened many challenging issues and problems for both the medical computing field and the mathematical community. Mathematical techniques (continuous and discrete) are playing a key role with increasing importance in understanding several fundamental problems in medicine. Naturally, optimization is a fundamentally important tool due to the limitation of the resources involved and the need for better decision making....

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  • Extensive knowledge bases of entailment rules between predicates are crucial for applied semantic inference. In this paper we propose an algorithm that utilizes transitivity constraints to learn a globally-optimal set of entailment rules for typed predicates. We model the task as a graph learning problem and suggest methods that scale the algorithm to larger graphs. We apply the algorithm over a large data set of extracted predicate instances, from which a resource of typed entailment rules has been recently released (Schoenmackers et al., 2010). ...

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  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học quốc tế cung cấp cho các bạn kiến thức về ngành y đề tài:Identification of metabolic system parameters using global optimization methods

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  • Given a parallel corpus, semantic projection attempts to transfer semantic role annotations from one language to another, typically by exploiting word alignments. In this paper, we present an improved method for obtaining constituent alignments between parallel sentences to guide the role projection task. Our extensions are twofold: (a) we model constituent alignment as minimum weight edge covers in a bipartite graph, which allows us to find a globally optimal solution efficiently; (b) we propose tree pruning as a promising strategy for reducing alignment noise. ...

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  • GSM (Global System for Mobile Communications, originally Groupe Spécial Mobile), is a standard set developed by the European Telecommunications Standards Institute (ETSI) to describe technologies for second generation (2G) digital cellular networks. Developed as a replacement for first generation (1G) analog cellular networks, the GSM standard originally described a digital, circuit switched network optimized for full duplex voice telephony.

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  • The acceleration of globalization and the growth of emerging economies present signifi cant opportunities for business expansion. One of the quickest ways to achieve effective international expansion is by leveraging the web, which allows for the technological connectivity of global markets and opportunities to compete on a global basis. To systematically engage and thrive in this networked global economy, professionals and students need a new skill set – one that can help them develop, manage, assess, and optimize efforts to successfully launch websites for tapping global markets.

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  • For the philosopher of history, G.W.F. Hegel, the fundamental challenge for any student of societal evolution is to apprehend in thought the spirit of the age (or the zeitgeist)—i.e., to understand the motive force of change while it is still at work (Lauer, 1974). Catching the zeitgeist ‘in the act,’ so to speak, is a matter of practical importance; for gaining such an understanding would seem to be a necessary, if not sufficient, condition for successfully shaping ‘for the better’ any future state of affairs. Hegel does not give us much cause for optimism here.

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  • The optimism born of the world's first successful disease-eradication campaign invigorated the international health community, if only briefly. Global consensus regarding the right to primary health care for all was reached at the International Conference on Primary Health Care in Alma-Ata (in what is now Kazakhstan) in 1978. However, the declaration of this collective vision was not followed by substantial funding, nor did the apparent consensus reflect universal commitment to the right to health care. Moreover, as is too often the case, success paradoxically weakened commitment. ...

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  • Given the spatial relationships extracted as described above, our goal is to integrate this information into an optimization framework with a properly defined cost function quantifying the quality of the furniture arrangement. Given an arbitrary room layout populated by furniture objects, the synthesized arrangement should be useful for virtual environment modeling in games and movies, interior design software, and other applications. The search space of our problem is highly complex as objects are interdependent in the optimization process.

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  • We propose a hybrid approach to coordinate structure analysis that combines a simple grammar to ensure consistent global structure of coordinations in a sentence, and features based on sequence alignment to capture local symmetry of conjuncts. The weight of the alignmentbased features, which in turn determines the score of coordinate structures, is optimized by perceptron training on a given corpus. A bottom-up chart parsing algorithm efficiently finds the best scoring structure, taking both nested or nonoverlapping flat coordinations into account. ...

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  • Intelligent Centerless Grinding: Global Solution for Process Instabilities and Optimal Cycle Design I. Gallego (3) Manufacturing Department, Faculty of Engineering – Mondragon University, Mondragon, Spain Submitted by R. Bueno (1), San Sebastian, Spain Abstract Centerless grinding productivity is largely limited by three types of instabilities: chatter, geometric lobing and workpiece rotation problems.

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  • We propose a global algorithm for learning entailment relations between predicates. We define a graph structure over predicates that represents entailment relations as directed edges, and use a global transitivity constraint on the graph to learn the optimal set of edges, by formulating the optimization problem as an Integer Linear Program. We motivate this graph with an application that provides a hierarchical summary for a set of propositions that focus on a target concept, and show that our global algorithm improves performance by more than 10% over baseline algorithms. ...

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  • We show how global constraints such as transitivity can be treated intensionally in a Zero-One Integer Linear Programming (ILP) framework which is geared to find the optimal and coherent partition of coreference sets given a number of candidate pairs and their weights delivered by a pairwise classifier (used as reliable clustering seed pairs). In order to find out whether ILP optimization, which is NPcomplete, actually is the best we can do, we compared the first consistent solution generated by our adaptation of an efficient Zero-One algorithm with the optimal solution. ...

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  • GSM

    GSM (Global System for Mobile Communications), is a standard set developed by the European Telecommunications Standards Institute (ETSI) to describe technologies for second generation digital cellular networks. Developed as a replacement for first generation analog cellular networks, the GSM standard originally described a digital, circuit switched network optimized for full duplex voice telephony. The standard was expanded over time to include first circuit switched data transport, then packet data transport via GPRS (General Packet Radio Services)....

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  • This guide explains how features work in the Exchange Server architecture, and how to configure and manage these features for optimal results. This content ranges from configuring global settings at an organizational level, to managing individual servers, to managing Exchange clusters. After reading this guide, you will have a solid understanding of what it takes to configure and manage your Exchange Server 2003 organization.

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  • Being a leader is tougher than ever! Workplaces are more complex and competitive. Change is occurring at the speed of light. Work relationships need to be built in broader, matrixed, and more global organizations. Today’s leaders need new skills and more support to respond to the challenges and opportunities that rocket their way like water out of a fire hose. I have great respect for the people who take on the role of leader. Great leaders are able to make a significant difference. They shape results and our work experience. Being a leader can also be a stressful and thankless job....

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  • Plants are continuously affected by a variety of environmental factors. Whereas biotic environmental factors are other organisms such as symbionts, parasites, pathogens, herbivores, and competitors, abiotic factors include parameters and resources which determine plant growth like temperature, relative humidity, light, availability of water, mineral nutrients, and CO 2 , as well as wind, ionizing radiation, or pollutants (Schulze et al. 2002 ) . The effect each abiotic factor has on the plant depends on its quantity or intensity.

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  • The rapidly increasing global population has dramatically increased the demands for natural resources and has caused significant changes in quantity and quality of natural resources.To achieve sustainable resource management, it is essential to obtain insight- ful guidance from emerging disciplines such as landscape ecology.This text addresses the links between landscape ecology and natural resource management.These links are discussed in the context of various landscape types,a diverse set of resources,and a wide range ofmanagement issues.

    pdf518p huetay_1 28-02-2013 46 24   Download

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