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Wyszukujesz frazę "forecasting method" wg kryterium: Temat


Tytuł:
Forecasting method of electric vehicle charging load based on virtual prediction parameter estimation strategy
Autorzy:
Cai, Yongxiang
Chen, Qing
Wang, Yang
Li, Wei
Ren, Jiakuan
Qu, Yangquan
Tematy:
distribution network
electrical vehicle
forecasting method
Monte Carlo simulation
Pokaż więcej
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Powiązania:
https://bibliotekanauki.pl/articles/59111803.pdf  Link otwiera się w nowym oknie
Opis:
In order to deal with the threat of the randomness of large-scale electric vehicle (EV) loads to the safe and economic operation of the distribution network effectively, a forecasting method of EV loads based upon virtual prediction parameter estimation strategy is proposed. Firstly, an in-depth analysis is conducted to thoroughly examine the applicability and target audience of various existing power user load forecasting methods. This initial phase provided a solid foundation for the introduction of the new methods. Secondly, utilizing the Monte Carlo simulation method, a charging load forecasting approach that considers both spatial and temporal distribution is developed. This method effectively captures the diversity of EV charging behaviors by leveraging virtual parameter estimation, integrating insights from historical data into future load predictions, thereby enhancing forecasting accuracy. Finally, to validate the effectiveness of this groundbreaking approach, comprehensive testing was conducted on the MATLAB R2017a simulation platform. This verification phase not only serves to demonstrate the method’s accuracy, but also underscores its practicality and reliability in real-world applications.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Classification of forecasting methods in production engineering
Autorzy:
Winkowski, Cezary
Tematy:
forecasting
forecasting method
production engineering
manufacturing company
prognozowanie
metoda prognozowania
inżynieria produkcji
zakład produkcyjny
Pokaż więcej
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Powiązania:
https://bibliotekanauki.pl/articles/125637.pdf  Link otwiera się w nowym oknie
Opis:
Business management is a continuous decision-making process. It is difficult to imagine a company that does not use forecasting techniques. Even small enterprises without relevant forecasting departments more or less consciously anticipate future events, forecasting the volume of production and setting directions for development. Today’s production companies must quickly adapt to changing customer requirements, implementing structural and technological changes and delivering projects related to the production of new products. Under the dynamically changing conditions, the functioning and effective management of modern enterprises depend on futureoriented information. This increases the validity of forecasting. This article aimed to identify forecasting methods and areas of their use in production engineering. The publications on this subject were reviewed in the Scopus database, using the time frame from January 1970 to June 2018. An original classification of research subareas was created using VOS viewer software, and then, a bibliometric map was developed to visualise the results of the word coexistence analysis. The analysis of the co-occurrence and co-classification of words made it possible to indicate research subareas of forecasting in production engineering and related emerging research areas and issues.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Metoda diagnozy w procesie starzenia budynków mieszkalnych
The method of diagnosis in the process of aging of residential buildings
Autorzy:
Nowogońska, Beata
Tematy:
budynek mieszkalny
metoda diagnostyczna
metoda prognozowania
starzenie
element budowlany
residential building
diagnostic method
forecasting method
ageing
building component
Pokaż więcej
Wydawca:
Polski Związek Inżynierów i Techników Budownictwa
Powiązania:
https://bibliotekanauki.pl/articles/160892.pdf  Link otwiera się w nowym oknie
Opis:
Perspektywiczna znajomość procesu starzenia budynku mieszkalnego jest potrzebna do zapewnienia jego odpowiedniego stanu technicznego przez cały okres użytkowania. W artykule zaproponowana jest metoda diagnozy procesu starzenia budynku – metoda PRRD (Prediction of Reliability according to Rayleigh Distribution). W metodzie tej zmiany właściwości użytkowych budynków w funkcji czasu są sposobem przewidywania uszkodzeń. Prognoza degradacji budynku powinna być pomocna w procesach reagowania na uszkodzenia starzeniowe obiektów, a stosowanie przez zarządców krzywych zagrożenia może być przydatne jako wspomaganie planowania przedsięwzięć remontowych.
Prospective knowledge of the aging process of a residential building is necessary to ensure its appropriate technical condition throughout the entire exploitation period. The article proposes a method of diagnosis of residential building aging process – using the PRRD method (Prediction of Reliability according to Rayleigh Distribution). In this method, changes in performance characteristics of buildings in the time function constitute a way of predicting defects. Forecast of degradation of the building should be helpful in the processes of reacting to aging defects of the facilities, whereas the use of threat curves by managers can be useful as a support in planning renovation undertakings.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Use of Some Forecasting Methods and SWOT Analysis in the Selected Processes of Foundry
Autorzy:
Szymszal, J.
Gajdzik, B.
Tematy:
computer aided
casting production
forecasting method
SWOT analysis
statistical method
econometric method
wspomaganie komputerowe
produkcja odlewnicza
metody prognozowania
analiza SWOT
metoda statystyczna
metoda ekonometryczna
Pokaż więcej
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:
https://bibliotekanauki.pl/articles/382538.pdf  Link otwiera się w nowym oknie
Opis:
Forecasting and analysis SWOT are helping tools in the business activity, because under conditions of dynamic changes in both closer and more distant surroundings, reliable, forward-looking information and trends analysis are playing a decisive role. At present, the ability to use available data in forecasting and other analyzes according with changes in business environment are the key managerial skills required, since both forecasting and SWOT analysis are a integral part of the management process, and the appropriate level of forecasting knowledge is increasingly appreciated. Examples of practical use of some forecasting methods in optimization of the procurement, production and distribution processes in foundries are given. The possibilities of using conventional quantitative forecasting methods based on econometric and adaptive models applying the creep trend and harmonic weights are presented. The econometric models were additionally supplemented with the presentation of error estimation methodology, quality assessment and statistical verification of the forecast. The possibility of using qualitative forecasts based on SWOT analysis was also mentioned.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The efficiency of some forecasting methods applied to annual minimum flow series
Autorzy:
Weglarczyk, S.
Tematy:
forecasting method
Holt-Winters model
water level
annual minimum water level
Vistula River
tributary
local linear regression model
river
LOESS model
Pokaż więcej
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Powiązania:
https://bibliotekanauki.pl/articles/61400.pdf  Link otwiera się w nowym oknie
Opis:
Four methods of forecasting: „no-change", LOESS, local linear regression and Holt-Winters were applied to annual minimum water levels observed at ten cross-sections of two tributaries of the Vistula river. The 1-, 2-, ..., 5-year forecasts were made for each year after some initial year, and four quality measures: bias, root mean square error, mean absolute error and maximum absolute error were calculated for each time series and lead time. The naïve model turned out to be always the worst in it bias and almost always very good, sometimes the best regarding the other measures.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dynamic forest fire risk evaluation in Poland
Autorzy:
Szczygieł, Ryszard
Kwiatkowski, Mirosław
Kołakowski, Bartłomiej
Piwnicki, Józef
Wydawca:
The Committee on Forestry Sciences and Wood Technology of the Polish Academy of Sciences and the Forest Research Institute in Sekocin Stary
Cytata wydawnicza:
Szczygieł, Ryszard & Kwiatkowski, Mirosław & Kołakowski, Bartłomiej & Piwnicki, Józef. (2020). Dynamic forest fire risk evaluation in Poland. Folia Forestalia Polonica. 62. 139-144. 10.2478/ffp-2020-0014.
Opis:
The weather conditions determine the dynamic forest fire risk. In Poland, the dynamic forest fire risk is calculated using a method elaborated at the Forest Research Institute. The forest fire risk degree (4-level scale) is calculated every day at 9:00 am and at 1:00 pm during the fire season (1.03 till 30.09) for 60 prognostic zones selected on the basis of stand and climatic conditions. 97% of all annual forest fires occur during the fire season. Surface fires are a significant part of the fires (90%) and occur in forest stands where pine is the dominant species. The purpose of the research was to prepare a new method of forecasting forest fire risk, which would enable a more precise method of evaluation of the risk of an outbreak of fire in relation to the existing and forecast meteorological conditions in forests. The results obtained during testing of this method indicate a high accuracy in forecasting fire risk and a satisfactory precision of formulae for calculating moisture content of pine litter. The assumptions of the new method included: – possibility of determining the actual risk of fire for the given area, being the average for all measurement points located on the terrain equally those in which the moisture content measurement of litter has not been performed, – possibility of forecasting the risk of forest fire for the afternoon in the morning hours of the given day, – possibility of forecasting fire risk for the following day, – forecasting moisture content of litter for the afternoon and of the given day and for the following day, – drawing up a method enabling limitation of operational costs of fire prevention system.
Dostawca treści:
Repozytorium Centrum Otwartej Nauki
Artykuł
Tytuł:
Dynamic forest fire risk evaluation in Poland
Autorzy:
Szczygieł, Ryszard
Kwiatkowski, Mirosław
Kołakowski, Bartłomiej
Piwnicki, Józef
Tematy:
forest fire risk degree
dynamic forest risk
pine litter moisture content
method of forecasting forest fire risk
Pokaż więcej
Wydawca:
Instytut Badawczy Leśnictwa
Powiązania:
https://bibliotekanauki.pl/articles/2041632.pdf  Link otwiera się w nowym oknie
Opis:
The weather conditions determine the dynamic forest fire risk. In Poland, the dynamic forest fire risk is calculated using a method elaborated at the Forest Research Institute. The forest fire risk degree (4-level scale) is calculated every day at 9:00 am and at 1:00 pm during the fire season (1.03 till 30.09) for 60 prognostic zones selected on the basis of stand and climatic conditions. 97% of all annual forest fires occur during the fire season. Surface fires are a significant part of the fires (90%) and occur in forest stands where pine is the dominant species. The purpose of the research was to prepare a new method of forecasting forest fire risk, which would enable a more precise method of evaluation of the risk of an outbreak of fire in relation to the existing and forecast meteorological conditions in forests. The results obtained during testing of this method indicate a high accuracy in forecasting fire risk and a satisfactory precision of formulae for calculating moisture content of pine litter. The assumptions of the new method included: – possibility of determining the actual risk of fire for the given area, being the average for all measurement points located on the terrain equally those in which the moisture content measurement of litter has not been performed, – possibility of forecasting the risk of forest fire for the afternoon in the morning hours of the given day, – possibility of forecasting fire risk for the following day, – forecasting moisture content of litter for the afternoon and of the given day and for the following day, – drawing up a method enabling limitation of operational costs of fire prevention system.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Forecasting currency risk of enterprise’s asset portfolio using the Monte Carlo simulation
Autorzy:
Kaczmarzyk, Jan
Tematy:
currency risk
forecasting
enterprise
Monte Carlo method
Pokaż więcej
Wydawca:
Polska Akademia Nauk. Komitet Nauk o Finansach PAN
Powiązania:
https://bibliotekanauki.pl/articles/2097019.pdf  Link otwiera się w nowym oknie
Opis:
The aim of the paper is to point out that the Monte Carlo simulation is an easy and flexible approach when it comes to forecasting risk of an asset portfolio. The case study presented in the paper illustrates the problem of forecasting risk arising from a portfolio of receivables denominated in different foreign currencies. Such a problem seems to be close to the real issue for enterprises offering products or services on several foreign markets. The changes in exchange rates are usually not normally distributed and, moreover, they are always interdependent. As shown in the paper, the Monte Carlo simulation allows for forecasting market risk under such circumstances.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Forecasting of COVID-19 incidence in Ukraine using the method of exponential smoothing
Autorzy:
Malysh, Nina
Podavalenko, Alla
Kuzmenko, Olga
Kolomiets, Svitlana
Tematy:
COVID-19
forecasting
method of exponential smoothing
Pokaż więcej
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Powiązania:
https://bibliotekanauki.pl/articles/56992766.pdf  Link otwiera się w nowym oknie
Opis:
Coronavirus infection (COVID-19) is a highly infectious disease of viral etiology. SARS-CoV-2 virus was first identified during the investigation of the outbreak of respiratory disease in Wuhan, China in December 2019. And already on March 11, 2020 COVID-19 in the world was characterized by the WHO as a pandemic. In Ukraine the situation with incidence COVID-19 remains difficult. The purpose of this study is to develop a mathematical forecasting model for COVID-19 incidence in Ukraine using an exponential smoothing method. The article analyzes reports on basic COVID-19 incidence rates from 29.02.2019 to 01.10.2021. In order to determine the forecast levels of statistical indicators that characterize the epidemic process of COVID-19 the method of exponential smoothing was used. It is expected that from 29.02.2019 to 01.10.2021 the epidemic situation of COVID-19 incidence will stabilize. The indicator of “active patients” will range from 159.04 to 353.63 per 100 thousand people. The indicator of “hospitalized patients” can reach 15.43 and “fatalities” — 1.87. The use of the method of exponential smoothing based on time series models for modeling the dynamics of COVID-19 incidence allows to develop and implement scientifically sound methods in order to prevent, quickly prepare health care institutions for hospitalization.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The energy consumption forecasting in Mongolia based on Box-Jenkins method (Arima model)
Autorzy:
Zolboo, Gansukh
Adiya, Bor
Bilguun, Enkhbayar
Tematy:
energy forecasting
energy consumption
ARIMA model
Box-Jenkins method
Pokaż więcej
Wydawca:
Instytut Polityki Energetycznej im. Ignacego Łukasiewicza
Powiązania:
https://bibliotekanauki.pl/articles/101770.pdf  Link otwiera się w nowym oknie
Opis:
The primary products of the power industry are electric energy and thermal energy. Thus, forecasting electric energy consumption is significant for short and long term energy planning. ARIMA model has adopted to forecast energy consumption because of its precise prediction for energy consumption. Our result has shown that annual average electric energy consumption will be 10,628 million kWh per year during 2019-2030 which approximately 3.3 percent growth per annum. At the moment, there is not a practice solution for the storage of electricity in Mongolia. Therefore, energy supply and demand have to be balanced in real-time for operational stability. Without an accurate forecast, the end-users may experience brownouts or even blackouts or the industry could be faced with sudden accidents due to the energy demand. For this reason, energy consumption forecasting is essential to power system stability and reliability.
Dostawca treści:
Biblioteka Nauki
Artykuł

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