Autor: Wierzbicki, A. P. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Delays in Technology Development: Their Impact on the Issues of Determinism, Autonomy and Controllability of Technology
Autorzy:: Wierzbicki, A. P.
Powiązania:: https://bibliotekanauki.pl/articles/307976.pdf
Data publikacji:: 2008
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: autonomy
change of episteme
delay time
determinism and controllability of technology
impacts of informational revolution
paradigm of philosophy of technology
technology development and evaluation
Opis:: The paper provides a discussion of diverse delays occurring in technology development, and an explanation of reasons why, when seen holistically from outside, the process of technology development might appear as an autonomous, self-determining, uncontrollable process. When seen from inside, however, the process is far from being uncontrollable. This paradox is explained by the fact that technology development contains many processes with delays, in total amounting sometimes to fifty years; when seen from outside, such a process might appear uncontrollable, even if it is very much controllable when approached internally and in detail. Therefore, the definition and types of technology creation as well as stages of technological processes are discussed in some detail in this paper. Some aspects of the contemporary informational revolution and some recent results on micro-theories of knowledge and technology creation are also reviewed. It is suggested that one of possible ways of changing the paradigmatic attitude of philosophy of technology is to invite some such philosophers to participate in the development of modern tools of knowledge civilization era, such as software development and evaluation. The conclusions of the paper stress the need of essentially new approaches to many issues in the time of informational revolution.
Źródło:: Journal of Telecommunications and Information Technology; 2008, 4; 5-16
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Socio-Economic Challenges from and for Future Internet
Autorzy:: Wierzbicki, A. P.
Powiązania:: https://bibliotekanauki.pl/articles/309170.pdf
Data publikacji:: 2010
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: Future Internet
informational revolution
socioeconomic changes and challenges
Opis:: There are several papers available addressing the challenges for Future Internet that result from socio-economic aspects; such challenges must be obviously taken into account when constructing and developing Future Internet. This paper, however, takes an opposite view that from the dynamics of the development of Internet itself (or Future Internet) result challenges for the socio-economic development and even for the paradigm of understanding economy; such challenges must be taken into account first, then - in a feedback loop -lead to the modification of socio-economic challenges for Future Internet. This change of perspective is necessary because the analysis of socio-economic challenges for Future Internet is typically based on a classical paradigm of equilibrium economics. While useful, this paradigm is limited and has been shown incomplete, e.g., by the recent world-wide financial and economic crisis. This paper shows that the informational revolution - including but not limited to the development of Internet - has already changed the behavior of main socio-economic agents as well as of economic markets and our understanding of them; thus, new perspectives are needed. The paper also shows that a useful perspective is that not of expected benefits from Future Internet - there are many such benefits and they will surely motivate enough economic development of Future Internet - but of socio-economic threats resulting from the dynamic development of the Internet. There are several such threats and conflicts that can be foreseen: the conflict between corporatization and governance; the conflict between direct and indirect limits to freedom; the trend to- wards elitarism inherent in Internet development dynamics versus democracy; the threat of network and computer domination over people, etc. Some of such threats and conflicts are discussed in the paper.
Źródło:: Journal of Telecommunications and Information Technology; 2010, 2; 5-14
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: The concept of ambient intelligence and decision support for telecommunications
Autorzy:: Wierzbicki, A.P.
Powiązania:: https://bibliotekanauki.pl/articles/309275.pdf
Data publikacji:: 2002
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: ISTAG
ambient intelligence
decision support for telecommunications
Opis:: The paper presents first the concept of AmI (ambient intelligence) and AmI scenarios of ISTAG (Information Society Technology Advisory Group of European Commission). The requirements of intelligence versus decision support are then discussed. Resulting challenges for decision support systems (DSS) in telecommunications are then outlined and conclusions presented.
Źródło:: Journal of Telecommunications and Information Technology; 2002, 3; 3-6
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 4.

Tytuł:: The problem of objective ranking: foundations, approaches and applications
Autorzy:: Wierzbicki, A. P.
Powiązania:: https://bibliotekanauki.pl/articles/308101.pdf
Data publikacji:: 2008
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: subjective ranking
objective ranking
reference point approaches
objectivity
Opis:: The paper starts with the discussion of the issue of objectivity versus subjectivity, stressing that while an absolute objectivity is not attainable, nevertheless trying to be as objective as possible constitutes a higher value, necessary for hard science and technology. Dangers and errors of the subjectivist reduction of objectivity to power and money attempted by the postmodern sociology of science are discussed. Then we turn to the problem of subjective versus objective decision analysis and ranking. It is shown that while all classical decision theory aims at a rational analysis and support of subjective decisions, there are important application cases, particularly in managerial problems, when the decision maker prefers to avoid specifying her/his preferences and needs decision analysis - e.g., ranking of decision options - that is as objective as possible. An approach to decision support that might be easily adapted for such objective ranking is the reference point methodology; its application is shown on examples. One of these examples is actually not an application of the methodology, but a real life problem that motivated the development of objective ranking. The examples illustrate that objective ranking might be important for management, including also management of telecommunication networks.
Źródło:: Journal of Telecommunications and Information Technology; 2008, 3; 15-23
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 5.

Tytuł:: Challenges before National Institute of Telecommunications after fifty years of its activity
Autorzy:: Wierzbicki, A.P.
Powiązania:: https://bibliotekanauki.pl/articles/308406.pdf
Data publikacji:: 2001
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: National Institute of Telecommunications
mission
research programme
Opis:: In the year 2001 we celebrate the fifty anniversary of the activity of National Institute of Telecommunications under its present name (in Polish: Instytut Łączności). Although we can date earlier the beginnings of the Institute, we will not present here its detailed history that is discussed in other papers. This paper presents rather the transformation of the Institute in last years, resulting from the systemic transformation of Poland. We describe: new mission of the Institute, the results of structural changes of the Institute in last five years, an outline of long-term research programme. Finally, the paper addresses the challenges before the Institute on the verge of the new millennium.
Źródło:: Journal of Telecommunications and Information Technology; 2001, 2; 3-9
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 6.

Tytuł:: Technology and change: the role of information technology in knowledge civilization
Autorzy:: Wierzbicki, A. P.
Powiązania:: https://bibliotekanauki.pl/articles/308922.pdf
Data publikacji:: 2006
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: knowledge civilization era
philosophy of technology
definition of technology
technology proper versus its system of social applications
hard sciences
relation between technology
soft social sciences and humanities
Opis:: The paper presents a reflection on the role of technology and, in particular, information technology in the era of knowledge civilization. Diverse perceptions of this era, the concepts of three civilization eras versus three waves, of a cultural platform versus an episteme of a civilization era, of a big change at the end of industrial civilization era are outlined. The first principle of cultural anthropology and the concept of cultural imperialism are recalled. The contemporary philosophy of technology is shortly reviewed. An interpretation of Die Technik und die Kehre of M. Heidegger from a technological point of view is given. It is shown that we should distinguish technology proper from the system of its socio-economic applications, and that the relation of technology proper to hard science and to socio-economic applications of technology forms two positive feedback loops; the one of socio-economic applications might be more dan- gerous in cases of social infatuation with technological possibilities or other misapplications of technology. It is shown that the technology of knowledge civilization era will differ from that of industrial era in proposing boundless number of diversified technological possibilities; thus, the Heideggerian warning against social infatuation with technological possibilities must be not only repeated, but also modified and strengthened.
Źródło:: Journal of Telecommunications and Information Technology; 2006, 4; 3-14
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 7.

Tytuł:: Telecommunications, multiple criteria analysis and knowledge theory
Autorzy:: Wierzbicki, A. P.
Powiązania:: https://bibliotekanauki.pl/articles/309016.pdf
Data publikacji:: 2005
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: decision support
intuition
knowledge creation
knowledge integration and management
tacit knowledge
ontology
epistemology
technology creation
telecommunications
Opis:: 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.
Źródło:: Journal of Telecommunications and Information Technology; 2005, 3; 3-13
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 8.

Tytuł:: Multiple Criteria Evaluation and Ranking of Social Penetration of Information Society Technologies
Autorzy:: Grzegorek, J.
Wierzbicki, A. P.
Powiązania:: https://bibliotekanauki.pl/articles/307608.pdf
Data publikacji:: 2012
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: dynamic ranking
ICT social penetration
multiple criteria ranking
objective ranking
Opis:: The paper presents a comparison of two ways of multiple criteria ranking of social penetration of information society technologies (ICT): the traditional one and the socalled objective ranking, illustrated on the example of Network Readiness Index. It is shown that objective ranking stresses a balanced development more than the traditional one. Another issue presented in this paper is the concept of dynamic ranking, a systematic presentation and prediction of the change of ranking in time. This is illustrated on the example of regions of three European countries: Finland, Italy and Poland.
Źródło:: Journal of Telecommunications and Information Technology; 2012, 4; 3-13
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 9.

Tytuł:: Objective classification of empirical probability distributions and the issue of event detection
Autorzy:: Granat, J.
Wierzbicki, A. P.
Powiązania:: https://bibliotekanauki.pl/articles/308105.pdf
Data publikacji:: 2008
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: objective classification
event detection
multicriteria analysis
Opis:: The paper concentrates on the issue of classification of empirical probability distributions (histograms), which is useful both in management situations and in event detection or event mining. While existing approaches to event detection concentrate on the use of selected moments or other characteristics of empirical probability distributions, we postulate that full empirical distribution preserves more of needed information then selected moments of this distribution, thus multiple criteria classification of distributions can be most effective in event detection.
Źródło:: Journal of Telecommunications and Information Technology; 2008, 3; 24-27
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 10.

Tytuł:: Examples of Objectiﬁed Multiple Criteria Ranking in the Selection of Infrastructural Projects
Autorzy:: Klimasara, E.
Wierzbicki, A. P.
Powiązania:: https://bibliotekanauki.pl/articles/308171.pdf
Data publikacji:: 2018
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: multiple criteria ranking
objectiﬁed multiple criteria ranking
objectiﬁed ranking method
subjective ranking
Opis:: 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.
Źródło:: Journal of Telecommunications and Information Technology; 2018, 4; 18-25
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 11.

Tytuł:: Examples of multiple criteria ranking in the design of cellular networks of mobile telecommunication
Autorzy:: Klimasara, E.
Wierzbicki, A. P.
Powiązania:: https://bibliotekanauki.pl/articles/305642.pdf
Data publikacji:: 2018
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: design of cellular networks
network evolution
variants of network designs
multiple criteria ranking of network designs
objectified ranking
Opis:: 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.
Źródło:: Computer Science; 2018, 19 (1); 99-112
1508-2806
2300-7036
Pojawia się w:: Computer Science
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 12.

Tytuł:: Application of multiple criteria evolutionary algorithms to vector optimisation, decision support and reference point approaches
Autorzy:: Szczepański, M.
Wierzbicki, A.P.
Powiązania:: https://bibliotekanauki.pl/articles/307706.pdf
Data publikacji:: 2003
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: algorytm ewolucyjny
optymalizacja wektorowa
evolutionary algorithm
vector optimisation
nadir point estimation
reference point techniques
Opis:: 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.
Źródło:: Journal of Telecommunications and Information Technology; 2003, 3; 16-33
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 13.

Tytuł:: Application of multi-criteria analysis based on individual psychological profile for recommender systems
Autorzy:: Rafalak, M.
Granat, J.
Wierzbicki, A. P.
Powiązania:: https://bibliotekanauki.pl/articles/305393.pdf
Data publikacji:: 2016
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: recommender system
multi-criteria analysis
user profiling
Opis:: 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.
Źródło:: Computer Science; 2016, 17 (4); 503-517
1508-2806
2300-7036
Pojawia się w:: Computer Science
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 14.

Tytuł:: Personalized Knowledge Mining in Large Text Sets
Autorzy:: Chudzian, C.
Granat, J.
Klimasara, E.
Sobieszek, J.
Wierzbicki, A. P.
Powiązania:: https://bibliotekanauki.pl/articles/307901.pdf
Data publikacji:: 2011
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: human centered computing
knowledge engineering
ontological engineering
personalized ontology
Opis:: The paper starts with a discussion of the concept of knowledge engineering, in particular ontological engineering. Consequently, the paper presents assumptions accepted as a basis for a group research on a radically personalized system of ontological knowledge mining, relying on the perspective of human centered computing and combining ontological concepts of the user with an ontology resulting from an automatic classification of a given set of textual data. The paper presents a pilot system PrOnto that supports research work in two aspects: searching for information interesting for a user according to her/his personalized ontological profile, and supporting research cooperation in a group of users (Virtual Research Community) according, e.g., to a comparison of such personalized ontological profiles. The paper concludes with suggestions concerning diverse applications of ontological engineering tools and future work.
Źródło:: Journal of Telecommunications and Information Technology; 2011, 3; 123-130
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 15.

Tytuł:: Permeability changes of coal cores and briquettes under tri-axial stress conditions
Przepuszczalność rdzeni oraz brykietów węglowych w trójosiowym stanie naprężenia
Autorzy:: Wierzbicki, M.
Konecny, P.
Kozusnikova, A.
Powiązania:: https://bibliotekanauki.pl/articles/219808.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: węgiel
przepuszczalność gazowa
naprężenie trójosiowe
brykiety węglowe
coal
gas permeability
tri-axial stress
coal briquettes
Opis:: The paper is dealing with the permeability of coal in triaxial state of stress. The permeability of coal, besides coal’s methane capacity, is the main parameter determining the quantity of methane inflow into underground excavations. The stress in a coal seam is one of the most important factors influencing coal permeability therefore the permeability measurements were performed in tri-axial state of stress. The hydrostatic three-axial state of stress was gradually increased from 5 MPa with steps of 5 MPa up to a maximum of 30 MPa. Nitrogen was applied as a gas medium in all experiments. The results of the permeability measurements of coal cores from the “Zofiówka” mine, Poland, and three mines from the Czech Republic are presented in this paper. As a “reference”, permeability measurements were also taken for coal briquettes prepared from coal dust with defined porosity. It was confirmed that the decreasing porosity of coal briquettes affects the decreasing permeability. The advantage of experimentation on coal briquettes is its good repeatability. From the experimental results, an empirical relation between gas permeability and confining pressure has also been identified. The empirical relation for coal briquettes is in good correspondence with published results. However, for coal cores, the character of change differs. The influence of confining pressure has a different character and the decrease in permeability is stronger due to the increasing confining pressure.
Przepuszczalność węgla, oprócz pojemności sorpcyjnej względem metanu jest głównym parametrem określającym dopływ metanu do podziemnych wyrobiskach górniczych. W warunkach naturalnych wartość przepuszczalności jest ściśle związana ze stanem naprężenia w pokładzie węgla. W pracy przedstawiono wyniki pomiarów przepuszczalności wykonanych w trójosiowym stanie naprężenia. Hydrostatyczny trójosiowy stan naprężenia stopniowo zwiększano od 5 MPa do maksymalnie 30 MPa z krokiem wynoszącym 5 MPa. Maksymalne ciśnienie hydrostatyczne odpowiada ciśnieniu hydrostatycznemu jakie występuje w górotworze nienaruszonym na głębokości około 1200 m. Pomiary przeprowadzono z zastosowaniem azotu na czterech rodzajach rdzeni węglowych. Trzy z nich pochodziły z kopalń czeskich (ČSM, Paskov, František) a czwarty z polskiej kopalni „Zofiówka“. Własności węgli i miejsca ich pobrania zestawiono w tablicy 1. Dodatkowo, dla celów porównawczych wykonano pomiary przepuszczalności na materiale „wzorcowym” jakim są brykiety węglowe. Brykiety te wykonano metodą prasowania w urządzeniu pokazanym schematycznie na rys. 2. Własności brykietów zestawiono w tablicy 2, gdzie podano ich gęstości helowe, objętościowe oraz porowatości. Zmienność przepuszczalności wywołana zmianą naprężenia hydrostatycznego może być opisana równaniem empirycznym (3). Wartości przepuszczalności początkowej (dla σ = 0) oraz współczynników B z równania 3, dla różnych porowatości brykietów zestawiono w tablicy 3. Zaletą eksperymentów na brykietach węglowych jest ich powtarzalność. Zmienności przepuszczalności wywołane obciążeniem hydrostatycznym próbek, dla brykietów węglowych oraz rdzeni pokazano na wykresach z rysunku 4. W przypadku rdzeni węglowych zmienność przepuszczalności jest znacznie większa, co wynika prawdopodobnie z występowania szczelin i spękań widocznych na rys 1. Szczeliny te, jako główne drogi transportowe dla gazu przy niskich obciążeniach ulegają zaciśnięciu i część transportu gazu przenosi się do przestrzeni porowej.
Źródło:: Archives of Mining Sciences; 2014, 59, 4; 1131-1140
0860-7001
Pojawia się w:: Archives of Mining Sciences
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "Wierzbicki, A. P." wg kryterium: Autor

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język