Results 31 to 40 of about 145,010 (267)

Excitation Spectrum in the Friedberg-Lee Model [PDF]

, 2001
The excitation spectrum of the nucleon with the spin 1/2 is examined by using the Friedberg-Lee model containing the constituent quark and the scalar meson. An appropriate way of quantization for the non-linear meson field is employed by taking account
Arima, M., Kowata, H.
core   +3 more sources

استخدام الشبکات العصبية والنماذج المختلطة متعددة المستويات في تقدير الطلب على التأمين بالتطبيق على الدول العربية [PDF]

Maǧallaẗ Al-Buḥūṯ Al-Mālīyyaẗ wa Al-Tiğāriyyaẗ, 2020
يعد نمو قطاع التأمين عاملاً هاماً في التنمية الاقتصادية والاجتماعية في أي دولة، وتهدف هذه الدراسة إلى التنبؤ بالطلب على التأمين في الدول العربية بناء على تحديد أهم العوامل المؤثرة فيه.
السيد الأشقر, محمد زايد, هبة الله أمين   +2 more
doaj   +1 more source

A deep learning integrated Lee-Carter model [PDF]

, 2019
In the field of mortality, the Lee–Carter based approach can be considered the milestone to forecast mortality rates among stochastic models. We could define a “Lee–Carter model family” that embraces all developments of this model, including its first ...
Levantesi, Susanna, Marino, Mario, Nigri, Andrea, Perla, Francesca, Scognamiglio, Salvatore   +4 more
core   +1 more source

Smart Exploration of Perovskite Photovoltaics: From AI Driven Discovery to Autonomous Laboratories

Advanced Energy Materials, EarlyView.
In this review, we summarize the fundamentals of AI in automated materials science, and review AI applications in perovskite solar cells. Then, we sum up recent progress in AI‐guided manufacturing optimization, and highlight AI‐driven high‐throughput and autonomous laboratories.
Wenning Chen, Zheyu Zhang, Kelvian T. Mularso, Bonghyun Jo, Hyun Suk Jung   +4 more
wiley   +1 more source

Forecasting Industrial Employment in Iran using Artifical Neural Network Method and ARIMA Model [PDF]

مدلسازی اقتصادسنجی, 2014
  Industry is one of the important and fundamental parts of economic and a ground for economic growth and development. Development and growth in industry section provide the ground for growth and development of other section such as agricultural ...
Ahmad Jafari Samimi, Zahra dehghan
doaj   +1 more source

Labeling Quality or Quantity? The Differential Impact of Geographical Indications on Export Performance in Turkish Agri‐Food Products

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT This study investigates the impact of geographical indication (GI) certification on the export performance of Turkish agri‐food products by analyzing both trade volume and unit value dynamics. Drawing on monthly data from 2000 to 2024 across 22 GI‐certified products, the research employs product‐level regressions, fixed‐effects panel models ...
Ihlas Sovbetov, Muge Burcu Ozdemir
wiley   +1 more source

Time series analysis to forecast temperature change [PDF]

, 2010
ARIMA models are often used to model the evolution in time of economic issues. We demonstrate that an ARIMA model is also valuable in the environmental field, where the evolution of climate change is causing many concerns.
Van Hecke, Tanja
core   +1 more source

Volatility analysis and forecasting of vegetable prices using an ARMA‐GARCH model: An application of the CF filter and seasonal adjustment method to Korean green onions

Agribusiness, EarlyView.
Abstract The vegetable market experiences significant price fluctuations due to the complex interplay of trend, cyclical, seasonal, and irregular factors. This study takes Korean green onions as an example and employs the Christiano–Fitzgerald filter and the CensusX‐13 seasonal adjustment methods to decompose its price into four components: trend ...
Yiyang Qiao, Byeong‐il Ahn
wiley   +1 more source

MODEL PERAMALAN NILAI TUKAR RUPIAH TERHADAP DOLLAR SINGAPURA MENGGUNAKAN METODE HYBRID ARIMA-ANN

Jurnal Lebesgue
This research aims to predict the Rupiah exchange rate against the Singapore Dollar using the hybrid ARIMA-ANN method. The hybrid model is used to increase prediction accuracy by utilizing the ARIMA model to capture linear patterns and the ANN model to ...
Sarah Fadhlia, Eko Primadi Hendri, Deasy Dwi Cahyaningtyas A   +2 more
doaj   +1 more source

Unemployment Rates Forecasts – Unobserved Component Models Versus SARIMA Models In Central And Eastern European Countries [PDF]

, 2017
In this paper we compare the accuracy of unemployment rates forecasts of eight Central and Eastern European countries. The unobserved component models and seasonal ARIMA models are used within a rolling short-term forecast experiment as an out-of-sample ...
Będowska-Sójka, Barbara
core   +2 more sources