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Tytuł:
A probabilistic approach to fuzzy and crisp interval ordering
Autorzy:
Sevastjanov, P. V.
Rog, P.
Powiązania:
https://bibliotekanauki.pl/articles/1931578.pdf
Data publikacji:
2003
Wydawca:
Politechnika Gdańska
Tematy:
probabilistic approach
interval ordering
fuzzy interval ordering
Opis:
The paper presents a new method of crisp and fuzzy interval comparison (ordering). The method is based on the probabilistic approach and the representation of fuzzy numbers as ordered a-level sets. It allows all the cases of interval location and overlapping to be taken into account, including the ordering of intervals and real numbers. Additionally, the method implicitly allows the widths of intervals to be used in ordering procedures. It should be noted that the probabilistic approach was employed only to infer the set of formulas needed to estimate quantitatively the degree to which one interval is less than or equal to another interval. However, the measure of this value may be treated as probability. Some simple examples are also presented to illustrate the technique's practical efficiency.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2003, 7, 1; 147-156
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Gamma Kumaraswamy-G family of distributions: theory, inference and applications
Autorzy:
Arshad, Rana Muhammad Imran
Tahir, Muhammad Hussain
Chesneau, Christophe
Jamal, Farrukh
Powiązania:
https://bibliotekanauki.pl/articles/1059046.pdf
Data publikacji:
2020-12-04
Wydawca:
Główny Urząd Statystyczny
Tematy:
stochastic ordering
Opis:
In this paper, we introduce a new family of univariate continuous distributions called the Gamma Kumaraswamy-generated family of distributions. Most of its properties are studied in detail, including skewness, kurtosis, analytical comportments of the main functions, moments, stochastic ordering and order statistics. The next part of the paper focuses on a particular member of the family with four parameters, called the gamma Kumaraswamy exponential distribution. Among its advantages, the following should be mentioned: the corresponding probability density function can have symmetrical, left-skewed, right-skewed and reversed-J shapes, while the corresponding hazard rate function can have (nearly) constant, increasing, decreasing, upside-down bathtub, and bathtub shapes. Subsequently, the inference on the gamma Kumaraswamy exponential model is performed. The method of maximum likelihood is applied to estimate the model parameters. In order to demonstrate the importance of the new model, analyses on two practical data sets were carried out. The results proved more favourable for the studied model than for any of the other eight competitive models.
Źródło:
Statistics in Transition new series; 2020, 21, 5; 17-40
1234-7655
Pojawia się w:
Statistics in Transition new series
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On orderings induced by the Loewner partial ordering
Autorzy:
Hauke, Jan
Markiewicz, Augustyn
Powiązania:
https://bibliotekanauki.pl/articles/1340594.pdf
Data publikacji:
1994
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Tematy:
star ordering
Loewner ordering
spectral radius
matrix norm
Opis:
The partial ordering induced by the Loewner partial ordering on the convex cone comprising all matrices which multiplied by a given positive definite matrix become nonnegative definite is considered. Its relation to orderings which are induced by the Loewner partial ordering of the squares of matrices is presented. Some extensions of the latter orderings and their comparison to star orderings are given.
Źródło:
Applicationes Mathematicae; 1993-1995, 22, 2; 145-154
1233-7234
Pojawia się w:
Applicationes Mathematicae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Impact of the Methods of the Data Normalization on the Result of Linear Ordering
Wpływ formuły normalizacyjnej na wynik porządkowania liniowego
Autorzy:
Dębkowska, Katarzyna
Jarocka, Marta
Powiązania:
https://bibliotekanauki.pl/articles/904803.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
normalization
linear ordering
Opis:
In taxonomy, various methods of the data normalization are used. They can significantly affect the result of the classification. This article presents the analysis of the impact of the methods of the data normalization on the result of linear ordering. The following methods and tools are used in this research: standardization, Weber’s standardization, unitization, zero unitization with zero minimum and selected quotient transformation. A statement comparing the methods used in the study of classification is formulated. In the research data concerning innovation of European Union regions from Eurostat are used.
W taksonomicznych badaniach empirycznych spotyka się różne formuły transformacji normalizacyjnej. Często pomija się fakt, iż jej wybór może istotnie wpływać na wynik klasyfikacji. W artykule zaprezentowano rezultaty eksperymentu badawczego, którego celem była analiza wpływu różnych procedur normalizacyjnych na wynik porządkowania liniowego obiektów. W pracy wykorzystano między innymi takie formuły normalizacyjne jak: standaryzacja, standaryzacja Webera, unitaryzacja, unitaryzacja zerowa oraz wybrane przekształcenia ilorazowe. Następnie dokonano komparacji otrzymanych wyników. Procedurę badawczą oparto o dane zaczerpnięte z bazy Eurostat, które dotyczyły innowacyjności regionów Unii Europejskiej. Zjawisko innowacyjności regionów zostało scharakteryzowane poprzez szereg cech, których realizacje były dostępne na poziomie badanych jednostek terytorialnych.
Źródło:
Acta Universitatis Lodziensis. Folia Oeconomica; 2013, 286
0208-6018
2353-7663
Pojawia się w:
Acta Universitatis Lodziensis. Folia Oeconomica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Note on the core matrix partial ordering
Autorzy:
Mielniczuk, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/729954.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
core inverse
core partial ordering
generalized inverse
group inverse
left star partial ordering
minus partial ordering
Moore-Penrose inverse
right sharp partial ordering
Opis:
Complementing the work of Baksalary and Trenkler [2], we announce some results characterizing the core matrix partial ordering.
Źródło:
Discussiones Mathematicae Probability and Statistics; 2011, 31, 1-2; 71-75
1509-9423
Pojawia się w:
Discussiones Mathematicae Probability and Statistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ordering of alfa-FeCo phase in the nanocrystalline Fe83-xCoxNb3B13Cu1 (x = 6, 25 or 41.5) alloy
Autorzy:
Zbroszczyk, J.
Młyńczyk, A.
Olszewski, J.
Ciurzyńska, W.
Wysłocki, B.
Perduta, K.
Lelątko, J.
Nabiałek, M.
Powiązania:
https://bibliotekanauki.pl/articles/148219.pdf
Data publikacji:
2007
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
nanocrystalline alloys
microstructure
ordering
Mössbauer spectroscopy
Opis:
The microstructure and ordering of alfa-FeCo phase of the nanocrystalline Fe83 xCoxNb3B13Cu1 (x = 6, 25 or 41.5) alloys were investigated. We have stated that á-FeCo phase is atomically ordered in the Fe83 xCoxNb3B13Cu1 (x = 25 or 41.5) samples crystallized by the heat treatment in a furnace. However, after flash annealing (by current or laser) that phase is disordered. Moreover, we have found that Co concentration in the crystalline alfa-FeCo phase strongly depends on Co content in the as-quenched ribbons. The annealing conditions influence also the grain diameter of the crystalline phase. In the nanocrystalline alloys obtained by a flash annealing of the amorphous ribbons finer grains are present.
Źródło:
Nukleonika; 2007, 52, supl. 1; 29-32
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Some remarks on operators preserving partial orders of matrices
Autorzy:
Hauke, Jan
Powiązania:
https://bibliotekanauki.pl/articles/729966.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
star partial ordering
minus partial ordering
löwner partial ordering
sharp partial order
nonnegative definite matrix
Hermitian matrix
EP-matrix
power of a matrix
polynomial of a matrix
Opis:
Stępniak [Linear Algebra Appl. 151 (1991)] considered the problem of equivalence of the Löwner partial order of nonnegative definite matrices and the Löwner partial order of squares of those matrices. The paper was an important starting point for investigations of the problem of how an order between two matrices A and B from different sets of matrices can be preserved for the squares of the corresponding matrices A² and B², in the sense of the Löwner partial ordering, the star partial ordering, the minus partial ordering, and the sharp partial ordering. Many papers have since been published (mostly coauthored by J.K. Baksalary - to whom the present paper is dedicated) that generalize the results in two directions: by widening the class of matrices considered and by replacing the squares by arbitrary powers. In the present paper we make a résumé of some of these results and suggest some further generalizations for polynomials of the matrices considered.
Źródło:
Discussiones Mathematicae Probability and Statistics; 2008, 28, 1; 143-155
1509-9423
Pojawia się w:
Discussiones Mathematicae Probability and Statistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
O domach radykalnych
On radical houses
Autorzy:
Mielnik, A.
Powiązania:
https://bibliotekanauki.pl/articles/97103.pdf
Data publikacji:
2017
Wydawca:
Politechnika Krakowska im. Tadeusza Kościuszki. Wydział Architektury. Instytut Projektowania Architektonicznego. Zakład Architektury Mieszkaniowej i Kompozycji Architektonicznej
Tematy:
Oswald Mathias Ungers
abstrakcja
porządek
abstraction
ordering
Opis:
Inspiracją do zawartych w tekście rozważań jest twórczość Oswalda Mathiasa Ungersa, architekta, który szczególnie podkreślał potrzebę poszukiwania porządku w architekturze. Dwa projekty domów w mieście jego autorstwa to przykłady architektury podporządkowanej ścisłym zasadom geometrii. Geometrii traktowanej jako siły porządkującej rzeczywistość. Wyobrażony, abstrakcyjny świat Ungersa zmaterializowany w fizycznych budowlach jest dowodem na nieprzemijalną wartość architektury odwołującej się do rygorystycznych zasad kompozycyjnych.
The inspiration for the following considerations is the architectural and theoretical output of Oswald Mathias Ungers, an architect who specifically emphasized the need for order in architecture. Two projects for housing in the city by him have been chosen examples of architecture subjected to strict rules of geometry. Geometry is treated as the force organizing reality. This imaginary, abstract world of Ungers’ is materialized in physical structures, and can be considered as proof of long-lasting value of architecture adhering to the stringent rules of composition.
Źródło:
Pretekst; 2017, 7; 96-100
2449-5247
Pojawia się w:
Pretekst
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
SYNTHETIC RADAR MEASURES THAT FACTOR IN WEIGHTS OF FEATURES
Autorzy:
Binderman, Zbigniew
Borkowski, Boleslaw
Szczesny, Wieslaw
Powiązania:
https://bibliotekanauki.pl/articles/453225.pdf
Data publikacji:
2013
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Katedra Ekonometrii i Statystyki
Tematy:
synthetic measure
classification
ordering
weights
radar measure
Opis:
This work is a direct continuation of previous works of authors ([Binderman, Borkowski, Szczesny 2008, Binderman, Szczesny 2009]). The goal of this work is to generalize known methods of constructing measures of synthetic objects, methods that use radar charts of vectors. The methods listed in this work factor in weights assigned to features and make the values of indicators independent from the ordering of considered features. The listed methods have been applied in the analysis of regional differentiation of agriculture in Poland between 2001 and 2010.
Źródło:
Metody Ilościowe w Badaniach Ekonomicznych; 2013, 14, 1; 37-52
2082-792X
Pojawia się w:
Metody Ilościowe w Badaniach Ekonomicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of the linear ordering methods in the voivodships research in the field of social media usage in enterprises in the period 2014-2017
Autorzy:
Kaczmarczyk, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/522531.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Ekonomiczny w Katowicach
Tematy:
Integrated marketing communications
Ordering methods
Social media
Voivodships
Opis:
Aim/purpose – The aim of this paper is to analyze and compare the development of voivodships in terms of social media usag e in enterprises in the period from 2014 to 2017. The aim has been formulated because of the increasingly greater significance of social media in post-industrial enterprises. Design/methodology/approach – The two types of linear ordering methods were ap- plied, i.e., the method based on the pattern of development (Hellwig’s method) and the methods that were non-based on the pattern of development were used. Spearman’s rank correlation coefficient ρ and Kendall’s rank correlation coefficient τ were used to verify correlations between various rankings. Analysis of the dynamics, spatial visualizations, box plots and polar plots were used in relation to the aggregated measures. In conducted analyses, data from the period 2014-2017 (pr ovided by the Central Statistical Office of Poland) was used. The each year for the period from 2014 to 2017 was analyzed. Findings – In all rankings (with the use of all ty pes of applied measures and also in all analyzed years) the 1st place was taken by Masovian Voivodship. The distance between Masovian Voivodship and other voivodships was still significant during the analyzed period. The created rankings were similar in terms of statistical significance of computed correlation coefficients in all analyses. The research study results do not indicate a clear dispersion of the level of the analyzed phenomenon between eastern and western voivodships. It was also found that the highe r is ICT usage by enterprises in a voivod- ship, the more common is social media usage by them. There is a clear overall tendency of increase in the phenomenon dur ing the period from 2014 to 2017. Research implications/limitations – The main implications is that the identified differ- ences between areas can be a basis to assess the social media usage as a specific factor of business development. The research result s indicate voivodships that should employ social media more and the highest placed voivo dships as well. The results can be regard as support for the policy of digitization and building a knowledge-based economy. Originality/value/contribution – The originality of this pa per is based on: the created rankings of voivodships in terms of social media usage in enterprises in the period 2014- 2017, the comparison and assessment of voivodsh ips in this context, and the identifica- tion of change of the social media usage in individual voivodships and in Poland as a whole.
Źródło:
Journal of Economics and Management; 2018, 33; 39-62
1732-1948
Pojawia się w:
Journal of Economics and Management
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Atomic Ordering Behavior of CoTi Alloy with Addition of Transition Metals
Autorzy:
Hussain, Abid
Ziya, Amer Bashir
Atiq, Shabbar
Saleem, Muhammad
Ullah, Mahtab
Ahmad, Sajjad
Ahmad, Naseeb
Powiązania:
https://bibliotekanauki.pl/articles/2049690.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
transformation temperature
order parameter
ternary alloys
ordering energy
Opis:
The statistical-thermodynamic theory of ordering and electronic theory of ordering in the pseudo-potential approximation was used to study the influence of ternary addition of some transition metals on the atomic ordering behavior of Co0.5(Ti1-xMx)0.5 alloys with M = Fe, Pt, re, V, Cr, Mn, Ni, Cu, Zn, Zr, Ag, Hf or Au up to a concentration of 1 at.%. The partial ordering energies, order-disorder phase transformation temperatures and partial short range order parameters have been calculated for these alloys. The analysis shows that the impurity elements in Co0.5(Ti1-xMx)0.5 alloys can be divided into two main groups on the basis of lattice site occupancy i.e. M = V, Cr, Mn, Cu, Zn, Zr, Ag, Hf and Au mainly substitute for Co sublattice sites whereas M = Fe, Ni, Pt or re mainly substitute for Ti sublattice sites. Further, the order-disorder transformation temperatures were found to either increase or remain nearly unchanged by the addition of ternary impurities in the CoTi alloy depending on the absolute value of the partial ordering energies. Alloys of Ti with V, Cr, mn, Cu, Zn, Zr, Ag, Hf or Au in place of Co and alloys of Co with Fe, Ni, Pt or Re in place of Ti can be predicted for future. The results of the present analysis are in good agreement with the available experimental data on these alloys.
Źródło:
Archives of Metallurgy and Materials; 2021, 66, 2; 425-430
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Tragedy of Smart Cities in Egypt. How the Smart City is Used towards Political and Social Ordering and Exclusion
Autorzy:
Waisová, Šárka
Powiązania:
https://bibliotekanauki.pl/articles/27299355.pdf
Data publikacji:
2022
Wydawca:
NASK - National Research Institute
Tematy:
Egypt
exclusion
political ordering
social ordering
smart cities
technology
control
Egipt
wykluczenie
ład polityczny
ład społeczny
inteligentne miasta
technologia
kontrola
Opis:
Smart cities (SCs) are a new and rising phenomenon emerging across the globe. The present article focuses on the possible impact of SCs on socio-political life and structure, and the organisation of the target society. Here, SCs are critically considered as the spaces where people live, work and vote. The aim of the present article is to discuss SCs, and the digital technologies used in SCs, as a possible instrument of social and political ordering and of social exclusion. Drawing on empirical evidence from Egypt, particularly Egypt’s new capital, the article sketches out how the smart city has been used by political and military authorities to socially and politically order and engineer society as well as ef- fectively exclude certain groups, mainly political opponents. Life in the new smart capital has a Janus face. On the one hand, inhabitants of the city have access to excellent services, modern infrastructure, first-class education and health care, and high-tech digital technol- ogies which other Egyptians do not benefit from. On the other hand, these inhabitants are under permanent control and are prisoners of the system. Living segregated, with less free- dom than any other Egyptian citizens, they are excluded from natural life in the country and cannot experience any organic development of society.
Źródło:
Applied Cybersecurity & Internet Governance; 2022, 1, 1; 1-10
2956-3119
2956-4395
Pojawia się w:
Applied Cybersecurity & Internet Governance
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wielowymiarowa analiza atrakcyjności inwestycyjnej spółek sektora spożywczego notowanych na Giełdzie Papierów Wartościowych w Warszawie
Multivariate investment attractiveness analysis of food sector companies of Warsaw Stock Exchange
Autorzy:
Kijek, Arkadiusz
Powiązania:
https://bibliotekanauki.pl/articles/425056.pdf
Data publikacji:
2014
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
investment attractiveness index
linear ordering
portfolio analysis
optimization
Opis:
The article presents the results of study of investment attractiveness of food sector companies listed at the Warsaw Stock Exchange. The multivariate statistical methods are applied to evaluate the financial standing of companies. The author constructs the investment attractiveness index that is used to order companies by their economic and financial standing. Based on the values of investment attractiveness index the structure of optimal portfolios are determined according to Markowitz portfolio theory. The results of survey indicate directions of investment portfolio diversification.
Źródło:
Econometrics. Ekonometria. Advances in Applied Data Analytics; 2014, 4(46); 175-188
1507-3866
Pojawia się w:
Econometrics. Ekonometria. Advances in Applied Data Analytics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An e-ordering and e-invoicing cloud solution
Autorzy:
Gusev, Marjan
Kiroski, Kiril
Ristov, Sasko
Powiązania:
https://bibliotekanauki.pl/articles/432101.pdf
Data publikacji:
2013
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
cloud architecture
cloud computing
e-Invoicing
e-Ordering
Opis:
This paper addresses a new cloud solution for e-Ordering and e-Invoicing solution. We faced several challenges in the process of the migration of the existing web application on the cloud, such as the reorganization of the proposed non-cloud model and the definition of the software modules that can communicate in a dynamic environment. In the design process we classified two kinds of software modules: static and dynamic. The classification is based on the level of required elasticity and scalability, as well as the activity that is associated with the corresponding module (tool). To finalize the implementation of this idea, we have developed indicators to determine the required conditions for the activation of additional cloud resources or the deactivation of the involved resources. The result of this design process is a new cost-effective solution with increased availability and performance compared to the non-cloud model. We also recognized the advantages and disadvantages of such a cloud solution, and discussed the characteristics that make our approach unique.
Źródło:
Informatyka Ekonomiczna; 2013, 3(29); 51-75
1507-3858
Pojawia się w:
Informatyka Ekonomiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Objective and Subjective Evaluation of the Condition of Manufacturing Branches in Poland - a Comparative Analysis
Obiektywne i subiektywne oceny kondycji branż produkcyjnych w Polsce - analiza porównawcza
Autorzy:
Kwiatkowska-Ciotucha, Dorota
Załuska, Urszula
Hanczar, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/905265.pdf
Data publikacji:
2003
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
comparative analysis
ordering methods
composite indicators
business surveys
Opis:
The paper presents the results of the examination of the condition of manufacturing branches in Poland obtained by applying two approaches. In the first (objective) approach the values of a composite indicator have been taken as the criterion for evaluating the effectiveness of management. The composite indicator has been constructed on the basis on a vector of component variables whose source were statistical reports. In the second (subjective) approach the results of business surveys have been applied as the evaluation criterion. The resulting orderings of individual branches obtained based on both criterions have been compared. For comparing the Spearman’s coefficient of rank correlation and values of average differences of the locations have been used.
W artykule porównano wyniki badań kondycji branż produkcyjnych w Polsce uzyskane przy zastosowaniu dwóch podejść. W podejściu pierwszym (obiektywnym) jako kryterium oceny efektywności gospodarowania przyjęto wartości zmiennej syntetycznej. Zmienną syntetyczną zbudowano oparając się na wektorze zmiennych cząstkowych, których źródłem były sprawozdania statystyczne. W podejściu drugim (subiektywnym) jako kryterium oceny zastosowano wyniki testów koniunktury. Następnie porównano uporządkowania branż uzyskane na podstawie obu kryteriów oceny. Do porównań tych wykorzystano współczynnik korelacji rang Spearmana oraz wartości średnich różnic lokat.
Źródło:
Acta Universitatis Lodziensis. Folia Oeconomica; 2003, 164
0208-6018
2353-7663
Pojawia się w:
Acta Universitatis Lodziensis. Folia Oeconomica
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 114

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