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Wyświetlanie 1-15 z 29
Tytuł:
Use of Stereotype Content Model in Describing Work Groups in Poland
Autorzy:
Jarosz, Piotr B.
Biela, Adam
Powiązania:
https://bibliotekanauki.pl/articles/2128613.pdf
Data publikacji:
2019-03-28
Wydawca:
Katolicki Uniwersytet Lubelski Jana Pawła II. Towarzystwo Naukowe KUL
Tematy:
Stereotype Content Model
SCM
Polish sample
prejudice
discrimination
stereotypes
Opis:
In this study, the Stereotype Content Model was used to determine if work related out-group traits represented on Competence and Warmth dimensions would be helpful in describing Polish work groups and potential interactions that may occur between them. The study was performed on a group of 98 participants. Taken that the Stereotype Content Model is based on stereotypes within intergroup function and analyzing this study results in the conclusion that by using the The SCM, it is possible to effectively describe and observe out-group interactions in the Polish work environment.
Wykorzystanie Stereotype Content Model (SCM) w opisie grup zawodowych w Polsce In this study, the Stereotype Content Model was used to determine if work related out-group traits represented on Competence and Warmth dimensions would be helpful in describing Polish work groups and potential interactions that may occur between them. The study was performed on a group of 98 participants. Taken that the Stereotype Content Model is based on stereotypes within intergroup function and analyzing this study results in the conclusion that by using the The SCM, it is possible to effectively describe and observe out-group interactions in the Polish work environment.
Źródło:
Roczniki Psychologiczne; 2009, 12, 1; 81-96
1507-7888
Pojawia się w:
Roczniki Psychologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improvement of e-commerce recommendation systems with deep hybrid collaborative filtering with content: A case study
Wykorzystanie Hybrydowych Głębokich Sieci Neuronowych jako systemów rekomendacyjnych. Studium przypadku
Autorzy:
Wójcik, Filip
Górnik, Michał
Powiązania:
https://bibliotekanauki.pl/articles/424978.pdf
Data publikacji:
2020
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
collaborative filtering
deep learning
content model
product recommendation
filtracja kolaboratywna
głębokie uczenie
model treści
rekomendacja produktów
Opis:
This paper presents a proposition to utilize flexible neural network architecture called Deep Hybrid Collaborative Filtering with Content (DHCF) as a product recommendation engine. Its main goal is to provide better shopping suggestions for customers on the e-commerce platform. The system was tested on 2018 Amazon Reviews Dataset, using repeated cross validation and compared with other approaches: collaborative filtering (CF) and deep collaborative filtering (DCF) in terms of mean squared error (MSE), mean absolute error (MAE) and mean absolute percentage error (MAPE). DCF and DHCF were proved to be significantly better than the CF. DHCF proved to be better than DCF in terms of MAE and MAPE, it also scored the best on separate test data. The significance of the differences was checked by means of a Friedman test, followed by post-hoc comparisons to control p-value. The experiment shows that DHCF can outperform other approaches considered in the study, with more robust scores.
W artykule zbadano innowacyjną architekturę sieci neuronowych zwaną Głębokim Hybrydowym Systemem Filtracji Kolaboratywnej (DHCF), mającą posłużyć jako system rekomendacji konsumenckich. Jego zadaniem jest sugerowanie produktów klientom platform e-commerce. System został przetestowany na zbiorze danych 2018 Amazon Reviews, z wykorzystaniem powtórzonej walidacji krzyżowej, i porównany z dwoma innymi podejściami: filtracją kolaboratywną (CF) oraz filtracją kolaboratywną z siecią neuronową (DCF). Do porównania wykorzystano metryki błędu średniokwadratowego (MSE), średniego błędu bezwzględnego (MAE) oraz średniego procentowego błędu bezwzględnego (MAPE). DCF i DHCF uzyskały wyniki istotnie lepsze niż CF, a dodatkowo DHCF uzyskał lepsze wyniki niż DCF pod względem MAE i MAPE. Istotność różnic sprawdzano testem Friedmana z porównaniami wielokrotnymi i kontrolą poziomu istotności. Eksperyment dowodzi, że DHCF uzyskuje lepsze i stabilniejsze wyniki niż pozostałe metody.
Źródło:
Econometrics. Ekonometria. Advances in Applied Data Analytics; 2020, 24, 3; 37-50
1507-3866
Pojawia się w:
Econometrics. Ekonometria. Advances in Applied Data Analytics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
LEARNING MODEL FOR IMPROVING THE EFFECTIVENESS OF STUDENTS’ LEARNING PERFORMANCE IN LESSONS
Autorzy:
Shayner, Anna
Shvay, Roksolyana
Rarot, Halina
Powiązania:
https://bibliotekanauki.pl/articles/628399.pdf
Data publikacji:
2020
Wydawca:
Fundacja Pro Scientia Publica
Tematy:
“parallel” learning model, content units, duration of the teaching and learning process.
Opis:
Purpose. The objective of this study is to suggest and demonstrate the feasibility of a new learning model and compare learning outcomes due to the traditional and developed learning models. Methods. The advantages of the developed model are proved in accordance with  statistical processing of the pedagogical experiment results using Statistica. The experiment involves 786 students who are aged 13-14 and study in grades 7-8. The time parameters of the duration of individual elements of the lesson in the traditional learning model are consistent with the methodological literature (Horonovska & Samsonova, 1985; Sadovyi, Vovkotrub, & Tryfonova, 2013). Results. The methodology of selecting generic content units (GCUs) from the subject content and their division into theoretical (TCUs) and experimental (ECUs) content units is elaborated. The total time of all TCUs gives the duration of the teaching process while the time of all ECUs is the duration of the knowledge process acquisition, and the time of GCUs is the duration of the learning process. The result of the GCUs presentation offers two learning models: traditional (sequential) and developed (parallel) ones. Conclusions.    The broad implication of the present research is that the developed "parallel" model allows using the time effectively for practical students’ research work at physics lessons, and enables to give better learning outcomes, use individual and group forms of learning with observance of individualization and differentiation learning principle. This model assists in building pedagogical teaching technologies for different subjects.
Źródło:
Journal of Education Culture and Society; 2020, 11, 1; 225-238
2081-1640
Pojawia się w:
Journal of Education Culture and Society
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Field validation of DNDC and SWAP models for temperature and water content of loamy and sandy loam Spodosols
Autorzy:
Balashov, E.
Buchkina, N.
Rizhiya, E.
Farkas, C.
Powiązania:
https://bibliotekanauki.pl/articles/972349.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
field validation
agroecosystem
modelling
soil water content
soil temperature
DNDC model
SWAP model
temperature
water content
loamy sand
sandy loam
Spodosol
Opis:
The objectives of the research were to: fulfil the preliminary assessment of the sensitivity of the soil, water, atmosphere, and plant and denitrification and decomposition models to variations of climate variables based on the existing soil database; validate the soil, water, atmosphere, and plant and denitrification and decomposition modelled outcomes against measured records for soil temperature and water content. The statistical analyses were conducted by the sensitivity analysis, Nash-Sutcliffe efficiency coefficients and root mean square error using measured and modelled variables during three growing seasons. Results of sensitivity analysis demonstrated that: soil temperatures predicted by the soil, water, atmosphere, and plant model showed a more reliable sensitivity to the variations of input air temperatures; soil water content predicted by the denitrification and decomposition model had a better reliability in the sensitivity to daily precipitation changes. The root mean square errors and Nash-Sutcliffe efficiency coefficients demonstrated that: the soil, water, atmosphere, and plant model had a better efficiency in predicting seasonal dynamics of soil temperatures than the denitrification and decomposition model; and among two studied models, the denitrification and decomposition model showed a better capability in predicting the seasonal dynamics of soil water content.
Źródło:
International Agrophysics; 2014, 28, 2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelling of the Svalbard fjord Hornsund
Autorzy:
Jakacki, J.
Przyborska, A.
Kosecki, S.
Sundfjord, A.
Albretsen, J.
Powiązania:
https://bibliotekanauki.pl/articles/48674.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
hydrodynamic model
regional variability
oceanographic condition
salt content
heat content
anomaly
Hornsund Region
Svalbard Fjord
Opis:
The Arctic Ocean is currently in transition towards a new, warmer state. Understanding the regional variability of oceanographic conditions is important, since they have a direct impact on local ecosystems. This work discusses the implementation of a hydrodynamic model for Hornsund, the southernmost fjord of western Svalbard. Despite its location, Hornsund has a stronger Arctic signature than other Svalbard fjords. The model was validated against available data, and the seasonal mean circulation was obtained from numerical simulations. Two main general circulation regimes have been detected in the fjord. The winter circulation represents a typical closed fjord system, while in summer the fresh water discharge from the catchment area generates a surface layer with a net flow out of Hornsund. Also described are the local hydrographic front and its seasonal variability, as well as the heat and salt content in Hornsund. The integration of salt and heat anomalies provides additional information about the salt flux into the innermost basin of the fjord - Brepollen during the summer. Extensive in situ observations have been collected in Hornsund for the last two decades but our hydrodynamic model is the first ever implemented for this area. While at the moment in situ observations better represent the state of this fjord's environment and the location of measurements, a numerical model, despite its flaws, can provide a more comprehensive image of the entire fjord's physical state. In situ observations and numerical simulations should therefore be regarded as complementary tools, with models enabling a better interpretation and understanding of experimental data.
Źródło:
Oceanologia; 2017, 59, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An incentives model based on reputation for P2P systems
Autorzy:
Asís López-Fuentes de, F.
Powiązania:
https://bibliotekanauki.pl/articles/308354.pdf
Data publikacji:
2013
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
content distribution
incentive model
reputation
peer-to-peer networks
Opis:
In this paper an incentive model to improve the collaboration in peer-to-peer networks is introduced. The proposed solution uses an incentives model associated with reputation issues as a way to improve the performance of a P2P system. The reputation of the all peers in the system is based on their donated resources and on their behavior. Supplying peers use these rules as a way to assign its outgoing bandwidth to the requesting peers during a content distribution. Each peer can build its best paths by using a best-neighbor policy within its neighborhood. A peer can use its best paths to obtain best services related to content search or download. The obtained results show that proposed scheme insulates the misbehaving peers and reduces the free-riding so that the systems performance is maximized.
Źródło:
Journal of Telecommunications and Information Technology; 2013, 4; 92-101
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geographical paths as an auxiliary didactic resource - a study proposal
Autorzy:
Markowska, Agata K.
Powiązania:
https://bibliotekanauki.pl/articles/2030289.pdf
Data publikacji:
2008-06-01
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Tematy:
didactic paths
curriculum model
program basis
teaching syllabus
teaching content
Opis:
Didactic paths play a very important part in modern education, on the primary school level as well as at universities. Beside other things, they let students compare book knowledge with the real world. Unfortunately, there are only a few geographical didactic paths, as opposed to those in history or science. The new offer for preparing methodological geographical paths begins with an analysis of documents as a curriculum model or a syllabus with chosen items to be taught which can be discussed during outdoor lessons and finally examines the area which fulfils a large number of requirements. It is possible that in this way of preparing methodological geographical paths the boring, monotonous area will give many possibilities to discuss teaching items.
Źródło:
Miscellanea Geographica. Regional Studies on Development; 2008, 13; 309-314
0867-6046
2084-6118
Pojawia się w:
Miscellanea Geographica. Regional Studies on Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Internet digital content pricing and subscribers control
Autorzy:
Mejjouali, Sobhi
Tadj, Lotfi
Powiązania:
https://bibliotekanauki.pl/articles/27315325.pdf
Data publikacji:
2023
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
maximum principle
model predictive control
optimal control
web content pricing
Opis:
We use optimal control theory to determine the optimal rate of change in the subscription fee and the optimal ratio of ad space to the total web page space for a web content provider. An optimal solution is obtained using the maximum principle approach and the model predictive control approach. Numerical experiments show that it is preferable to use the first approach when the planning horizon is short and the second approach when the planning horizon is long.
Źródło:
Operations Research and Decisions; 2023, 33, 3; 59--73
2081-8858
2391-6060
Pojawia się w:
Operations Research and Decisions
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Teacher Knowledge Application in a Childs Moral Development. The Selected Aspects
Autorzy:
Szymańska, Maria
Powiązania:
https://bibliotekanauki.pl/articles/507049.pdf
Data publikacji:
2014
Wydawca:
Akademia Ignatianum w Krakowie
Tematy:
moral development
moral imagination
moral model
reflection
reflective skills
teacher knowledge
content knowledge
pedagogical content knowledge
curriculum knowledge
Opis:
The article aimsat deepening teachers’ responsibility and raising their awareness while organizing and managing the educational process, covering the reflective skills whose quality is reflected in teachers’ moral approaches. Morality performs a significant role when it comes to conducting the educational process. That is why discussion of issues of teachers’ knowledge seems to be important. Specifying its components means that we can see teachers‘ influence on pupils’ moral development, particularly when teachers are regarded as moral models by young students. Being conscious of this fact obliges teachers to perform self-moral developmental work which is then transferred into the pedagogic and didactic fields. The components of teachers’ knowledge understood in a perspective of creative, effective, reflective and practical implementation become meaningful.
Źródło:
Journal of Preschool and Elementary School Education; 2014, 5; 43 - 58
2084-7998
Pojawia się w:
Journal of Preschool and Elementary School Education
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integrated estimation model of clean coal ash content for froth flotation based on model updating and multiple LS-SVMs
Autorzy:
Dong, Zhiyong
Wang, Ranfeng
Fan, Minqiang
Fu, Xiang
Geng, Shaowei
Powiązania:
https://bibliotekanauki.pl/articles/110152.pdf
Data publikacji:
2019
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
flotation
clean coal ash content
integrated estimation model
multiple LS-SVMs
Opis:
Clean coal ash content, a prominent product index describing coal froth flotation, is difficult to be measured online. This constraint leads to a lack of timely guidance during operation and impedes the optimal operation of the coal flotation process. To solve this problem, considering the fluctuation of working conditions, the heterogeneity of raw coal and the variation of feed coal classes, an integrated estimation model of clean coal ash content for coal flotation based on model updating and multiple least squares support vector machines (LS-SVMs) is proposed. First, a single estimation model for a single class of coal based on LS-SVM is built, and the internal parameters are optimized by gravitational search algorithm (GSA). Second, the model updating strategy is designed to solve the problem of the decline in single model accuracy. Furthermore, a multiple LS-SVMs model formed by several single models for different classes of coal is studied along with the model switching mechanism to address the problem of model mismatch. Finally, an industrial experiment and evaluation are conducted. The mean relative error between the estimated and actual values is 3.32%, and the correlation coefficient is 0.9331. The estimation accuracy and adaptability of the integrated model can meet the industrial requirements.
Źródło:
Physicochemical Problems of Mineral Processing; 2019, 55, 1; 21-37
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Generalized model of information protection process in audiovisual content distribution networks
Uogólniony model procesu ochrony informacji w sieciach dystrybucji treści audiowizualnych
Autorzy:
Rozorinov, Heorhii
Hres, Oleksandr
Rusyn, Volodymyr
Powiązania:
https://bibliotekanauki.pl/articles/2174751.pdf
Data publikacji:
2022
Wydawca:
Politechnika Lubelska. Wydawnictwo Politechniki Lubelskiej
Tematy:
security
content
communication network
model
indicator
bezpieczeństwo
treść
sieć komunikacyjna
wskaźnik
Opis:
The most important indicators of the effectiveness of content protection systems are indicators of the achieved security level, i.e. functional properties of security. These indicators are: confidentiality, integrity, availability.Each of the indicators of the functional properties of content securityis distributed according to the methods of ensuring and the degree of its achievement. A significant drawback of such indicators is that they are qualitative. This significantly narrows the scope of their use and makes it impossible to use them in mathematical expressions for optimizing the parametersof protection means, obtaining quantitative estimates of the performance quality of the protection system or its components, etc. The work offers a number of quantitative indicators, which, depending on the purpose, can be probabilistic and temporal. Calculation of such indicators makes it possible to assess the degree of ensuring the functional properties of information security or the possible degree of ensuring the functional properties of protected information.
Najważniejszymi wskaźnikami skuteczności systemów ochrony treści są wskaźniki osiągniętego poziomu bezpieczeństwa –właściwości funkcjonalne zabezpieczeń. Takimi wskaźnikami są: poufność, integralność, dostępność. Każdy zewskaźników właściwości funkcjonalnych bezpieczeństwa treści jest podzielony ze względu na metody zapewnienia i stopień ich osiągnięcia. Istotną wadą takich wskaźników jest to, że są one jakościowe. Zawęża to znacznie zakres ich stosowania i uniemożliwia wykorzystanie ich w wyrażeniach matematycznych do optymalizacji parametrów środków ochrony, uzyskania ilościowych ocen jakości działania systemu ochrony lub jego elementów itp. W pracy zaproponowano szereg wskaźników ilościowych, które w zależności od celu mogą mieć charakter probabilistyczny i czasowy. Obliczenie takich wskaźników pozwala ocenić stopień zapewnienia właściwości funkcjonalnych bezpieczeństwa informacji lub możliwy stopień zapewnienia właściwości użytkowych chronionych informacji.
Źródło:
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska; 2022, 12, 4; 21--25
2083-0157
2391-6761
Pojawia się w:
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of correlation models for the estimation of the water retention characteristics of soil
Autorzy:
Walczak, R.
Witkowska-Walczak, B.
Slawinski, C.
Powiązania:
https://bibliotekanauki.pl/articles/24572.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
correlation model
soil water content
soil
soil water potential
water retention
estimation
Źródło:
International Agrophysics; 2002, 16, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy Content Estimation of Municipal Solid Waste by Physical Composition in Al-Diwaniyah City, Iraq
Autorzy:
Janna, Hussein
Abbas, Mukhtar D.
Al-Khuzaie, Marwah M.
Al-Ansari, Nadhir
Powiązania:
https://bibliotekanauki.pl/articles/1955420.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
municipal solid waste
energy content
high heating value model
waste characterization
landfilling
Opis:
This study was undertaken to estimate the energy potential of municipal solid waste via creating a relationship between the high heating value (HHV) and the fractions of physical composition of municipal solid waste MSW (% food, % plastic, % paper, % wood, % textile) into the two scenarios, namely wet MSW (as discarded) and dry (free moisture). The created models were determined based on the results of obtained from the analysis of the components of the Al-Diwaniyah MSW and then from previous studies which involved experimental ultimate analysis (% C, % O, % H, % N, %S) of MSW, supported by the equations and models of previous studies which were used for HHV calculation. SPSS Statistical software was used to prepare the models. For each scenario, the input datasets were 60 cases, taking into account the minimization of the data and the average of HHV that result from equations. Four models were created, two models for each status where R2 was 1.00 and 0.999 for dry and wet situation, respectively. However, the equations of verification process showed that the models which depended on the dry fractions are more accurate. The produced HHV from the dry and wet MSW components in the Al-Diwaniyah City is 8655 KJ/Kg and 6440 KJ/Kg, respectively (as discarded).
Źródło:
Journal of Ecological Engineering; 2021, 22, 7; 11-19
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Statistical models for predicting aggregate stability from intrinsic soil components
Autorzy:
Bazzoffi, P.
Mbagwu, J.S.C.
Chukwu, W.I.E.
Powiązania:
https://bibliotekanauki.pl/articles/25118.pdf
Data publikacji:
1995
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
carbonate content
metallic oxide
soil property
statistical model
soil component
mineralogical property
aggregate stability
Źródło:
International Agrophysics; 1995, 09, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Practical experiences with the EASY TEST FOM moisture meter in assessing the soil water balance of a maize field
Autorzy:
Stenitzer, E.
Gassner, L.
Powiązania:
https://bibliotekanauki.pl/articles/24846.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
soil water
SIMWASER simulation model
measurement
soil
field
agricultural soil
maize
water content
water balance
Źródło:
International Agrophysics; 2004, 18, 4
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
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