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1
Content available Techniki informacyjne a rynek i demokracja
100%
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2015
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tom nr 1-2
3--10
PL
Artykuł poświęcony jest krytyce popularnych poglądów odnośnie wpływu nowych technologii, zwłaszcza technik informacyjnych, na rynek i demokrację. Wykazuje, że techniki informacyjne wykorzystane do maksymalizacji zysku prowadzą jednak do wzrostu bezrobocia i rozwarstwienia społecznego, że rynek wysokiej techniki ma charakter oligopolistyczny z ukrytymi zmowami cenowymi oraz często prowadzi do powstania nowych monopoli. Artykuł dowodzi, że osiągnięcia technik informacyjnych są często wykorzystywane nieetycznie, prowadząc do korupcji rynku. Jednocześnie, toczą się ostre walki o to czy techniki informacyjne będą wykorzystane do wzmocnienia demokracji, zwłaszcza demokracji bezpośredniej, czy też posłużą jako argument przeciw demokracji.
3
Content available remote CREATIVE SPACE: A SYNTHESIS OF THE THEORIES OF KNOWLEDGE CREATION
100%
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|
tom 40
|
nr 4(162)
621-645
EN
While epistemology of the 20th century concentrated on the problems of knowledge justification, logic and meaning of words, during the last decade of the last century and the first years of the 21th century, a number - over seven - of different theories of knowledge creation were proposed, mainly in Japan and Poland. The following theories should be mentioned in this context: first 'Shinayakana Systems Approach' (Sawaragi and Nakamori, 1991), 'Knowledge Creating Organization' (Nonaka and Takeuchi, 1995), and Polish 'rational theory of intuition' (Wierzbicki, 1997) and 'theory of regress' (Motycka, 1998). The present paper forms an attempt at providing a synthesis of such theories, based on the idea of 'creative space' - a generalization of the concept of 'spiral SECI' by Nonaka and Takeuchi with the use of rational theory of intuition and derived from it ontological divisions. The author presents, among others, different spirals of knowledge creation. depending on various circumstances, practical conclusions as regards creativity stimulations and some general conclusions.
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tom nr 3
3-13
EN
Telecommunications requires multiple criteria analysis and decision support. It is shown how some basic facts from telecommunications and informational sciences can be used to formulate a rational theory of intuition, developed as a complement of multiple criteria decision support. This paper presents a method called creative space used for integrating various approaches to knowledge creation and based on SECI spiral, I5 system and rational theory of intuition. Questions of supporting new technology creation by constructing specialized creative environments similar to decision support environments are also indicated.
EN
The paper addresses planning and design of contemporary networks of mobile telecommunication, where an existing network is subject to far reaching development and modication, thus evolution with diverse requirements of users and diverse density of network cells. This leads to considering diverse variants of network designs. When several variants of network designs are available, an investor might ask for a ranking of these variants. The investor is obviously not bounded by the results of such a ranking and might select a variant not highest in the ranking, but an objectied ranking might help in the selection. Therefore, the paper presents the way of computing and examples of objectied multiple criteria ranking, possibly not requiring the determination of weighting coecients.
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tom nr 3-4
108-116
PL
Dokonano przeglądu rozwoju metod szeroko rozumianej inżynierii wiedzy oraz jej rozlicznych zastosowań i implikacji, włącznie z implikacjami filozoficznymi. Odniesiono je do prac prowadzonych w Instytucie Łączności, a zwłaszcza w Zakładzie Zaawansowanych Technik Informacyjnych. W tak rozumianej inżynierii wiedzy i różnych dziedzinach z nią związanych Zakład ten specjalizuje się już od ponad 10 lat.
EN
Authors have reviewed the developments of methods used in the widely defined knowledge engineering, including its philosophical implications. This review is referenced to work carried out at National Institute of Telecommunications, in particular at the Laboratory of Advanced Information Technologies, which has been specializing in knowledge engineering and related issues for over 10 years.
EN
The paper addresses the issue of multiple criteria rankings of infrastructural projects (buildings, roads, etc.). Although the amount of literature devoted to this subject is considerable, all methods proposed produce subjective rankings, dependent on a direct or indirect definition of weighting coefficients applicable to subsequent evaluation criteria. Infrastructural projects are usually selected and approved collegially, however, by a group of decision makers with preferences that may potentially differ significantly. Therefore, an objectified ranking, independent from subjectively defined weighting coefficients, is needed for infrastructural projects. Such a ranking is proposed, analyzed and applied by the authors of this paper. This ranking depends originally only on the multiple objective evaluation data, i.e. the values of evaluation criteria related to decision scenarios or alternatives. Such an approach does not render a fully objective ranking, since one of this kind does not exist at all. Even the choice of the ranking method is a subjective decision, but it is objectified to the extent possible. The paper presents several examples of multiple criteria evaluation of infrastructural projects, derived from literature, and compares subjective rankings published in literature with objectified rankings that are independent of weighting coefficients.
EN
Multiple criteria evolutionary algorithms, being essentially parallel in their character, are a natural instrument of finding a representation of entire Pareto set (set of solutions and outcomes non-dominated in criteria space) for vector optimisation problems. However, it is well known that Pareto sets for problems with more than two criteria might become complicated and their representation very time-consuming. Thus, the application of such algorithms is essentially limited to bi-criteria problems or to vector optimisation problems with more criteria but of simple structure. Even in such cases, there are problems related to various important aspects of vector optimisation, such as the uniformity of representation of Pareto set, stopping tests or the accuracy of representing Pareto set, that are not fully covered by the broad literature on evolutionary algorithms in vector optimisation. These problems and related computational tests and experience are discussed in the paper. In order to apply evolutionary algorithms for decision support, it would be helpful to use them in an interactive mode. However, evolutionary algorithms are in their essence global and of batch type. Nevertheless, it is possible to introduce interactive aspects to evolutionary algorithms by focusing them on a part of Pareto set. The results of experimental tests of such modifications of evolutionary algorithms for vector optimisation are presented in the paper. Another issue related to vector optimisation problems with more than two criteria is the computational difficulty of estimating nadir points of Pareto set. The paper describes the use of diverse variants of evolutionary algorithms to the estimation of nadir points, together with experimental evidence.
EN
This paper presents a novel approach for user classification exploiting multi- criteria analysis. This method is based on measuring the distance between an observation and its respective Pareto front. The obtained results show that the combination of the standard KNN classification and the distance from Pareto fronts gives satisfactory classification accuracy – higher than the accuracy ob- tained for each of these methods applied separately. Conclusions from this study may be applied in recommender systems where the proposed method can be implemented as the part of the collaborative filtering algorithm.
10
Content available Logika i inżynieria wiedzy w telekomunikacji
51%
PL
Artykuł niniejszy jest poświęcony ogólnie roli logiki w poznaniu i kreowaniu wiedzy, w tym logiki wielowartościowej, najpierw z przeciwstawieniem jej roli klasycznej w filozofii oraz jej roli w zastosowaniach, zwłaszcza telekomunikacyjnych i teleinformatycznych, później zaś przykładowi zastosowania logik wielowartościowych w inżynierii wiedzy. Podkreślona jest konieczność pluralizmu logicznego, t.j. wyboru logiki o założeniach adekwatnych do danej dziedziny zastosowań. Dyskutowana jest kwestia pozornych paradoksów logicznych oraz ich usuwania przez wybór adekwatnej wersji logiki, a także przykład wyboru adekwatnej wersji logiki w zastosowaniu do systemu PrOnto wspomagania wyszukiwania tekstów interesujących dla użytkownika.
EN
The paper presents the role of logics generally in cognition and knowledge creation, especially multivalued logics, firstly counterposing its classical role in philosophy and its current role in telecommunication and teleinformatic applications, further describing an example of applying multivalued logics in knowledge engineering. The paper stresses the need of logical pluralism, that is, a selection of a type of logics with underlying axioms adequate to a given type of application. The issue of ostensible paradoxes and their elimination through a choice of adequate logics is discussed and an example of selection of an adequate type of logics for a system PrOnto of choosing texts interesting for the user.
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