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Search Results: 1 - 10 of 166 matches for " Keki? Dalibor "
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Security culture in contemporary understanding of security
Medjunarodni Problemi , 2004, DOI: 10.2298/medjp0403221k
Abstract: The author firstly points to the fact that within the overall comprehension of security a difference is made between the two terms - the notion and the concept of security. The notion of security is understood as an idea, as an apprehension of the system of security. He says that there are four schools of opinion about security: realistic, liberal-institutionalist alternative-critical and globalist ones. The realistic and globalist are two schools of opinion that are basically opposite to each other; the former takes the state as a focus of international security, while according to the latter one the state alone has for a long time been incapable of resolving the problems of security. The liberal-institutionalist and alternative-critical approaches consider that apart from the state, the individuals, socials groups and international organisations are also the factors of security. The contemporary concept of security is described as the concept of overall security and the concept of the co-operation security. Apart from the military or state security, the overall concept of security also includes the notion of societal, economic, ecological political and other kinds of security. The concept of the co-operation security is the symbiosis of the individual and collective security collective defence and promotion and expansion of stability. In the author's opinion the security culture is one of the substantial elements of the understanding of security. This idea has not been sufficiently elaborated or defined so far, although in every day speech it is very often used for some trivial and insignificant phenomena. The scientific circles neither devote sufficient attention to the security culture. The author endeavours to explain the security culture and to define its role, significance and position in the contemporary understanding of security. The security culture is the integral part of the overall culture pattern. It is the primary need of individuals. By applying the security culture individuals set them free from dependence and submission to the state, international organisation and institution, and so they become the factors of security independent in making decisions on their own fate. The security culture indicators are as follows: thinking or reflection on security, security behaviour that is the outward manifestation of the security as well as the relationship and approach to security which shows the willingness to respond to threats and challenges in the material and spiritual sense. We conceive the security culture as a value, as something people s
Adriatic-Ionian initiative
Medjunarodni Problemi , 2003, DOI: 10.2298/medjp0304413k
Abstract: At the beginning of the article the author gives a short survey of all important past forms of co-operation of the Balkan countries. Within the dense network of various forms for establishment of co-operation in the Balkans the latest one was the Adriatic-Ionian Initiative (AII) presented three years ago. In the author's opinion the Initiative resulted from the attempt of Italy to expand its influence to this region as well as its aspiration to make a counter-balance to Germany, which obviously exerts the greatest influence of all EU states in this part of Europe. The author presents the development of the Initiative since it was established in 2000 up to 2003. He expounds the chronology of AII creation, analysing the documents it has adopted so far, its basic principles and objectives, organisational structure, forms of cooperation and particularly the work of the round (working) tables as the most important form through which its activities are carried out. In a separate part the author has described the initiative that preceded AII and it was the Forum of Cities on the Adriatic and Ionian Seas. Today, the Forum is only a part of AII. The Initiative is headed by the AII Council; it meets at least once a year and at the beginning it was composed of ministers of foreign affairs of member states. Today, the Council also embraces speakers, and the last meeting was also attended by heads of states or governments of AII member states. Acting of the Initiative has been made operational through the work of the following working tables: education and inter-university cooperation; security and cooperation in reducing illegal activities; the round table for culture, working tables for environmental protection, sustainable development and resources preservation; the round table for economy, tourism, medium- and small-size entrepreneurship and the round table for maritime business and traffic. Analysing the work of the round tables the author points to the fact that member states make efforts to establish as close as possible the cooperation in the most important economic, security, cultural and educational fields, endeavouring to establish and improve not only the multilateral but the bilateral cooperation, too. The author is also of the opinion that cooperation within AII can be one of the opportunities to accelerate the accession to the European Union of these AII member countries that have before them a long way to join the European integration institutions. The last part of the article analyses the participation of representatives from Serbia and Montenegro i
Police diplomacy
KekiDalibor,Subo?i? Dane
Medjunarodni Problemi , 2009, DOI: 10.2298/medjp0902141k
Abstract: Police diplomacy is one of the most interesting issues of the contemporary international relations. Sources of this issue comes at the beginning of XX century. Organized criminal and terrorism influenced on appearance of international police cooperation at the end of XIX century. Police cooperation has enlarged last years. Termins police attaché and liason officer are used for the same purpose, but there are four key distinctions between them.
The Fundamental Problem with the Building Block Hypothesis
Keki Burjorjee
Computer Science , 2008,
Abstract: Skepticism of the building block hypothesis (BBH) has previously been expressed on account of the weak theoretical foundations of this hypothesis and the anomalies in the empirical record of the simple genetic algorithm. In this paper we hone in on a more fundamental cause for skepticism--the extraordinary strength of some of the assumptions that undergird the BBH. Specifically, we focus on assumptions made about the distribution of fitness over the genome set, and argue that these assumptions are unacceptably strong. As most of these assumptions have been embraced by the designers of so-called "competent" genetic algorithms, our critique is relevant to an appraisal of such algorithms as well.
Sufficient Conditions for Coarse-Graining Evolutionary Dynamics
Keki Burjorjee
Computer Science , 2006,
Abstract: It is commonly assumed that the ability to track the frequencies of a set of schemata in the evolving population of an infinite population genetic algorithm (IPGA) under different fitness functions will advance efforts to obtain a theory of adaptation for the simple GA. Unfortunately, for IPGAs with long genomes and non-trivial fitness functions there do not currently exist theoretical results that allow such a study. We develop a simple framework for analyzing the dynamics of an infinite population evolutionary algorithm (IPEA). This framework derives its simplicity from its abstract nature. In particular we make no commitment to the data-structure of the genomes, the kind of variation performed, or the number of parents involved in a variation operation. We use this framework to derive abstract conditions under which the dynamics of an IPEA can be coarse-grained. We then use this result to derive concrete conditions under which it becomes computationally feasible to closely approximate the frequencies of a family of schemata of relatively low order over multiple generations, even when the bitstsrings in the evolving population of the IPGA are long.
Towards a Sound Theory of Adaptation for the Simple Genetic Algorithm
Keki Burjorjee
Computer Science , 2007,
Abstract: The pace of progress in the fields of Evolutionary Computation and Machine Learning is currently limited -- in the former field, by the improbability of making advantageous extensions to evolutionary algorithms when their capacity for adaptation is poorly understood, and in the latter by the difficulty of finding effective semi-principled reductions of hard real-world problems to relatively simple optimization problems. In this paper we explain why a theory which can accurately explain the simple genetic algorithm's remarkable capacity for adaptation has the potential to address both these limitations. We describe what we believe to be the impediments -- historic and analytic -- to the discovery of such a theory and highlight the negative role that the building block hypothesis (BBH) has played. We argue based on experimental results that a fundamental limitation which is widely believed to constrain the SGA's adaptive ability (and is strongly implied by the BBH) is in fact illusionary and does not exist. The SGA therefore turns out to be more powerful than it is currently thought to be. We give conditions under which it becomes feasible to numerically approximate and study the multivariate marginals of the search distribution of an infinite population SGA over multiple generations even when its genomes are long, and explain why this analysis is relevant to the riddle of the SGA's remarkable adaptive abilities.
Joint Rock Coefficient Estimation Based on Hausdorff Dimension  [PDF]
Dalibor Marti?ek
Advances in Pure Mathematics (APM) , 2017, DOI: 10.4236/apm.2017.711037
Abstract: The strength of rock structures strongly depends inter alia on surface irregularities of rock joints. These irregularities are characterized by a coefficient of joint roughness. For its estimation, visual comparison is often used. This is rather a subjective method, therefore, fully computerized image recognition procedures were proposed. However, many of them contain imperfections, some of them even mathematical nonsenses and their application can be very dangerous in technical practice. In this paper, we recommend mathematically correct method of fully automatic estimation of the joint roughness coefficient. This method requires only the Barton profiles as a standard.
Capacities for population-genetic variation and ecological adaptations
Marinkovi? Dragoslav,Keki? Vladimir
Genetika , 2007, DOI: 10.2298/gensr0702093m
Abstract: In contemporary science of population genetics it is equally complex and important to visualize how adaptive limits of individual variation are determined, as well as to describe the amount and sort of this variation. Almost all century the scientists devoted their efforts to explain the principles and structure of biological variation (genetic, developmental, environmental, interactive, etc.), basing its maintenance within existing limits mostly on equilibria proclaimed by Hardy-Weinberg rules. Among numerous model-organisms that have been used to prove these rules and demonstrate new variants within mentioned concepts, Drosophila melanogaster is a kind of queen that is used in thousands of experiments for almost exactly 100 years (CARPENTER 1905), with which numerous discoveries and principles were determined that later turned out to be applicable to all other organisms. It is both, in nature and in laboratory, that Drosophilids were used to demonstrate the basic principles of population-genetic variation that was later applied to other species of animals. In ecological-genetic variation their richness in different environments could be used as an exact indicator of the status of a determined habitat, and its population-genetic structure may definitely point out to a possibility that specific resources of the environment start to be in danger to deteriorate, or to disappear in the near future. This paper shows clear-cut differences among environmental habitats, when populations of Drosophilidae are quantitatively observed in different wild, semi-domestic and domestic environments, demonstrating a highly expressed mutual dependence of these two parameters. A crucial approach is how to estimate the causes that determine the limits of biological, i.e. of individual and population-genetic variation. The realized, i.e. adaptive variation, is much lesser than a total possible variation of a polygenic trait, and in this study, using a moderately complex gene-enzyme system, is estimated to be smaller than 0.2%. For an allozymic system based on 9 loci at three D. melanogaster chromosomes, the estimate is that chromosomal types are reduced, on the average, to ca. 3% during meiotic divisions, and that available gene-enzyme combinations are reduced further 15 times in gamete selection. So finalized metabolic or adaptive developmental programs are emphasized to be the basic targets of Darwinian selection, rather than chromosomes or individual genes, that are involved in these programs.
Studies of Drosophilidae (Diptera) in Serbia. XVII. Collections from urug, Vojvodina
Keki? Vladimir D.
Archives of Biological Sciences , 2003, DOI: 10.2298/abs0302001k
Two Remarkable Computational Competencies of the Simple Genetic Algorithm
Keki M. Burjorjee
Computer Science , 2008,
Abstract: Since the inception of genetic algorithmics the identification of computational efficiencies of the simple genetic algorithm (SGA) has been an important goal. In this paper we distinguish between a computational competency of the SGA--an efficient, but narrow computational ability--and a computational proficiency of the SGA--a computational ability that is both efficient and broad. Till date, attempts to deduce a computational proficiency of the SGA have been unsuccessful. It may, however, be possible to inductively infer a computational proficiency of the SGA from a set of related computational competencies that have been deduced. With this in mind we deduce two computational competencies of the SGA. These competencies, when considered together, point toward a remarkable computational proficiency of the SGA. This proficiency is pertinent to a general problem that is closely related to a well-known statistical problem at the cutting edge of computational genetics.
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