Minimization problems

Tuyển tập các báo cáo nghiên cứu khoa học ngành toán học tạp chí toán học quốc tế đề tài:An EdgeMinimization Problem for Regular Polygons...
30p thulanh8 19092011 27 2 Download

In this paper, we formulate extractive summarization as a risk minimization problem and propose a unified probabilistic framework that naturally combines supervised and unsupervised summarization models to inherit their individual merits as well as to overcome their inherent limitations. In addition, the introduction of various loss functions also provides the summarization framework with a flexible but systematic way to render the redundancy and coherence relationships among sentences and between sentences and the whole document, respectively. ...
9p hongdo_1 12042013 14 1 Download

This text will strengthen a student's ability to apply the laws of physics to practical situations and problems that yield more easily to intuitive insight than to complex mathematics. These problems, chosen almost exclusively from classical (nonquantum) physics, are posed in accessible nontechnical language and require the student to select the right framework in which to analyze the situation. The book will be invaluable to undergraduates preparing for "general physics" papers. Some physics professors will even find the more difficult questions challenging.
263p anhtu200 11122011 124 44 Download

Sequential Method ( Preprocessing Methods) Parrarel Method missing value is taking into account in main process knowledge mining.Do Not Impute ( parrarel method) Case Deletion / Row Ignoring. Fill in the missing value / Imputation Method.The rising of new pattern because of wrong imputation method Biasing natural pattern in original data.Given a set of objects, the overall objective of clustering is to divide the data set into groups based on similarity of objects, and to minimize the intracluster dissimilarity.
22p giacattan 05012013 31 3 Download

Dialog participants in a nonmixed initiative dialogs, in which one participant asks questions exclusively and the other participant responds to those questions exclusively, can select actions that minimize the expected length of the dialog. The choice of question that minimizes the expected number of questions to be asked can be computed in polynomial time in some cases. The polynomialtime solutions to special cases of the problem suggest a number of strategies for selecting dialog actions in the intractable general case. ...
6p bunbo_1 17042013 16 2 Download

We investigate the problem of domain adaptation for parallel data in Statistical Machine Translation (SMT). While techniques for domain adaptation of monolingual data can be borrowed for parallel data, we explore conceptual differences between translation model and language model domain adaptation and their effect on performance, such as the fact that translation models typically consist of several features that have different characteristics and can be optimized separately.
11p bunthai_1 06052013 15 2 Download

After studying this chapter you will be able to understand: Give the names and summarize the main characteristics of the four basic market models, list the conditions required for purely competitive markets, convey how purely competitive firms maximize profits or minimize losses in the short run, explain why a competitive firm’s marginal cost curve is the same as its supply curve.
17p tangtuy05 23032016 5 1 Download

minimize the risk of noncompliance with export control laws. Export Management and Compliance Program Defined An EMCP includes both the operational export compliance policies and procedures an organization implements and a written set of guidelines that captures those policies and procedures.
166p lulanphuong 22032012 53 17 Download

The term “ smart grid” defi nes a self  healing network equipped with dynamic optimization techniques that use real  time measurements to minimize network losses, maintain voltage levels, increase reliability, and improve asset management. The operational data collected by the smart grid and its sub  systems will allow system operators to rapidly identify the best strategy to secure against attacks, vulnerability, and so on, caused by various contingencies.
233p nguyenthai_thinh 16032013 36 14 Download

Generally speaking, scheduling is the procedure of mapping a set of tasks or jobs (studied objects) to a set of target resources efficiently. It is an important tool in manufacturing and engineering, where it can have a major impact on the productivity of a process. More specifically, as a part of a larger planning and scheduling process, production scheduling is essential for the proper functioning of a manufacturing enterprise. Its primary goal is to maximize throughput and optimize resource utilization, while at the same time minimizing operating costs.
242p cucdai_1 14102012 31 10 Download

Managing Editors Akira Yamazaki Meisei University Tokyo, JAPAN Shigeo Kusuoka University of Tokyo Tokyo, JAPAN Editors Robert Anderson University of California, Berkeley Berkeley, U.S.A. Charles Castaing Universite Montpellier II Montpellier, FRANCE Frank H. Clarke Universite de Lyon I Villeurbanne, FRANCE Egbert Dierker University of Vienna Vienna, AUSTRIA Darrell Duffie Stanford University Stanford, U.S.A. Lawrence C. Evans University of California, Berkeley Berkeley, U.S.A.
128p yeuthuong 21102010 57 8 Download

11 Constrained optimization Solve constrained optimization problems by the substitution method. • Use the Lagrange method to set up and solve constrained maximization and constrained minimization problems. • Apply the Lagrange method to resource allocation problems in economics.
30p thegun16 26112010 38 6 Download

Around the world, many fisheries are shared fisheries in the sense that a common fish stock is accessed by both commercial and noncommercial fishers. Noncommercial fishers can include recreational fishers, or customary fishers, or both. A prevalent problem in these fisheries is competition between commercial and noncommercial fishers for access to a resource that is subject to increasing utilisation pressure.
45p lulanphuong 19032012 38 6 Download

In this chapter we investigate a general optimization problem in a real normed space. For such a problem we present assumptions under which at least one minimal point exists. Moreover, we formulate simple statements on the set of minimal points. Finally the existence theorems obtained are applied to approximation and optimal control problems.
24p yeuthuong 11032011 37 5 Download

With the great voyages in the fifteenth century it became necessary to evaluate the damage caused by the potential loss of ships. Emerges then the term risk, with connotations similar to what is meant today, but the understanding of its causes was related to accidents and, therefore, impossible to predict. The development of classical probability theory, in the midseventeenth century, to solve problems related to gambling, allowed the start of the process of quantifying the risks, but the causes were still credited to chance....
582p wqwqwqwqwq 20072012 19 5 Download

Poincar´ made the ﬁrst attempt in 1896 on applying variational calculus e to the threebody problem and observed that collision orbits do not necessarily have higher values of action than classical solutions. Little progress had been made on resolving this diﬃculty until a recent breakthrough by Chenciner and Montgomery. Afterward, variational methods were successfully applied to the N body problem to construct new classes of solutions.
25p dontetvui 17012013 23 5 Download

Abstract. The classical Heron problem states: on a given straight line in the plane, find a point C such that the sum of the distances from C to the given points A and B is minimal. This problem can be solved using standard geometry or differential calculus. In the light of modern convex analysis, we are able to investigate more general versions of this problem. In this paper we propose and solve the following problem: on a given nonempty closed convex subset of Rs , find a point such that the sum of the distances from that point to n given nonempty closed convex subsets of...
96p camchuong_1 10122012 22 4 Download

Minimizing the frequency and consequences of iatrogenic infections depends on improving the quality and accessibility of good medical services. Unlike STIs, which rely primarily on behavior change for their prevention, avoiding iatrogenic infections centers on maximizing access to good quality care, and in particular the technical competence of health care providers. It also requires resources and supportive public policy measures and encouragement of prompt health care seeking behavior by individuals.
0p le_minh_nha 18122012 24 4 Download

Looking only at the availability of elevators may not fully illustrate the accessibility of a unit. A unit located on the tenth floor of a multistory building without a working elevator is less accessible than a unit located on the third floor of the same building. We, therefore, extended the analysis by controlling for the number of floors from the main entrance to the apartment. Data, presented in parentheses, indicate that the majority of people live in multifamily buildings with no more than five stories.
50p ut_hai_can 26122012 20 4 Download

Reduce overall grain production and value by cracking is one of the main problems directly reduces income and the availability of staple food to the farmers in the Mekong Delta. Cracking or fissuring of a grain of wheat that may occur in the rice field by harvest time is not right / real, postharvest conditions improper drying and milling activities inconsistent. There are a series of activities during harvesting and processing rice harvest. Figure 1 is a diagram showing a system of rice production in the Mekong Delta of Vietnam today. All strings in this system may contribute to losses.
25p xau_la 10022012 29 3 Download