Xem 1-20 trên 36 kết quả Traveling problem
  • This book is a collection of current research in the application of evolutionary algorithms and other optimal algorithms to solving the TSP problem. It brings together researchers with applications in Artificial Immune Systems, Genetic Algorithms, Neural Networks and Differential Evolution Algorithm. Hybrid systems, like Fuzzy Maps, Chaotic Maps and Parallelized TSP are also presented.

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  • Air Travel and High-Altitude Destinations Commercial air travel is not a risk to the healthy pregnant woman or to the fetus. The higher radiation levels reported at altitudes of 10,500 m (35,000 ft) should pose no problem to the healthy pregnant traveler. Since each airline has a policy regarding pregnancy and flying, it is best to check with the specific carrier when booking reservations. Domestic air travel is usually permitted until the 36th week, whereas international air travel is generally curtailed after the 32nd week.

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  • Diabetes Mellitus Alterations in glucose control and changes in insulin requirements are common problems among patients with diabetes who travel. Changes in time zone, in the amount and timing of food intake, and in physical activity demand vigilant assessment of metabolic control. The traveler with diabetes should pack medication (including a bottle of regular insulin for emergencies), insulin syringes and needles, equipment and supplies for glucose monitoring, and snacks in carryon luggage. Insulin is stable for ~3 months at room temperature but should be kept as cool as possible.

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  • In this paper we consider a combinatorial optimization problem that is similar to the bottleneck traveling salesman problem. We show that an optimal tour for this problem is pyramidal tour (1, 3, 5,…, n,…, 6, 4, 2) or consists of some pyramidal subtours. The above 7methods can be extended to complete bipartite graphs. 1. Problem statement It is well-known that the traveling salesman problem (TSP) is strongly NP-hard (cf. [1], p. 353). But for some special cases of the TSP can be solvable in polynomial time. ...

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  • An efficient decoding algorithm is a crucial element of any statistical machine translation system. Some researchers have noted certain similarities between SMT decoding and the famous Traveling Salesman Problem; in particular (Knight, 1999) has shown that any TSP instance can be mapped to a sub-case of a word-based SMT model, demonstrating NP-hardness of the decoding task. In this paper, we focus on the reverse mapping, showing that any phrase-based SMT decoding problem can be directly reformulated as a TSP.

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  • Similarly, when a problemto be solved froma domain where the problem-specific knowledge is absent evolutionary algorithms can be successfully applied. Evolutionary algorithms are easy to implement and often provide adequate solutions. An origin of these algorithms is found in the Darwian principles of natural selection (Darwin, 1859). In accordance with these principles, only the fittest individuals can survive in the struggle for existence and reproduce their good characteristics into next generation....

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  • Pre-intermediate students need • to understand high-frequency phrases that they will hear • to know what to say in typical situations, • to know how to overcome typical travel problems. Students will need to use English if they travel to an English-speaking country or if they are using English as a lingua

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  • However, in the absence of this tool, the Swiss Army knife may be more suitable as a substitute. For example, to cut a piece of bread the kitchen knife is more suitable, but when traveling the Swiss Army knife is fine. Similarly, when a problemto be solved froma domain where the problem-specific knowledge is absent evolutionary algorithms can be successfully applied. Evolutionary algorithms are easy to implement and often provide adequate solutions.

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  • I enjoyed reading this book for a number of reasons. One reason is that it addresses high-speed analog design in the context of microwave issues. This is an advanced level book, which should follow courses in basic circuits and transmission lines. Most analog integrated circuit designers in the past worked on applications at a low enough frequency that microwave issues did not arise. As a consequence, they were adept at lumped parameter circuits and often not comfortable with circuits where waves travel in space.

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  • In the middle 1930s computer science was yet a not well defined academic discipline. Actually, fundamental concepts, such as ‘algorithm’, or ‘computational problem’, has been formalized just some year before. In these years the Austrian mathematician Karl Menger invited the research community to consider from a mathematical point of view the following problem taken from the every day life. A traveling salesman has to visit exactly once each one of a list of m cities and then return to the home city. He knows the cost of traveling from any city i to any other city j.

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  • This is a work in progress. It is a work that has been in progress for at least the last ten years if not more. It is a work that has much more yet to come. The study of environmental harm is relatively new for most criminologists. For myself, in writing this book I have had to draw upon my own work over the last decade plus that of a relatively small handful of criminologists who are fellow travellers in this area. On the other hand, there is a wealth of material from other fields and disciplines that is entirely relevant and useful to a study such as this...

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  • On this issue the review drew from best practices in the individual sectors examined. The first issue in O&M arrangements has already been mentioned: the need for clear ownership of the infrastructure and accountability for who will operate and maintain the project. The third issue, which is not always elaborated as much, is the need for a formal backstopping arrangement if the community is expected to carry out O&M. A good system is needed to give the community support when it has problems and when issues arise, for example the issue of mobilization of recurrent financing....

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  • According to the World Tourism Organization, the number of international tourist arrivals in 2004 reached an all-time record of 763 million. This number represents an increase over the 2003 figure of almost 11%—the highest and the only double-digit percentage increase since 1980, when these statistics were first collected. Not only are more people traveling; travelers are seeking more exotic and remote destinations. Studies show that 50–75% of short-term travelers to the tropics or subtropics report some health impairment.

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  • When I consented to prepare this volume for a series, which should deal with the notables of American history with some familiarity and disregard of historic gravity, I did not anticipate the seriousness of the task.

    pdf101p believe11 23-02-2013 19 3   Download

  • Copenhagen Airport is more than just an efficient traffic hub - much more. It is also Denmark’s window to the world. For this reason, Copenhagen Airports A/S wants to display the very best Denmark and the rest of Scandinavia has to offer in the fields of architecture, design and fine art. With its beautiful surroundings and richness in experiences for the passenger, the airport removes some of the tedious waiting time inherent in travelling and serves as a stunning business card for Denmark....

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  • “Competition From Internet Businesses” ranks 69th out of 75 problems, up from its 73rd ranking in 2004 when the problem was introduced into the survey. Only 5 percent of survey respondents regard the problem as critical. E-commerce now accounts for slightly less than 4 percent of all retail sales. Much of it is confined to a few sectors of the economy dominated by large firms including travel, booksellers, and financial institutions.

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  • In this section we study multicommodity flows. The objective is to maximize the amount of flow traveling from the sources to the corresponding destinations, subject to the capacity constraints. The main contents of this chapter include all of the following: Assignment problem, input-queued switching.

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  • This book summarizes all of Japanese "Basic" level grammar. It can be used for individual study using the simple explanations and examples. In addition you can study while traveling by listening to the accompanying CD. To check your understanding, please also try the practice problem.

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  • Phương pháp tối ưu hóa đàn kiến (Ant Colony Optimization – ACO) là một phương pháp mới mà ngày nay người ta rất quan tâm vì những hiệu quả nổi trội của nó so với các phuoeng pháp khác trong giải quyết các bài toán tối ưu hóa tổ hợp (Combinatorial optimization problems).

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  • Basic properties of numbers Factors, multiples, and divisibility Prime numbers and prime factorization Exponents (powers) Exponents and the real number line Roots and radicals Roots and the real number line Linear equations with one variable Linear equations with two variables Linear equations that cannot be solved Factorable quadratic expressions with one variable The quadratic formula Nonlinear equations with two variables Solving algebraic inequalities Weighted average problems Currency problems Mixture problems Investment problems Problems of rate of production or work Problems of rate...

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