Results 61 to 70 of about 7,382 (224)

ARFIMA Modelling for Tectonic Earthquakes in The Maluku Region

open access: yes, 2021
Maluku Province is one of the regions in Indonesia with a very active and very prone earthquake intensity because it is a meeting place for 3 (three) plates, namely the Eurasian, Pacific and Australian plates.
F. K. Lembang   +2 more
semanticscholar   +1 more source

Fractional Gaussian Noise: Spectral Density and Estimation Methods

open access: yesJournal of Time Series Analysis, Volume 46, Issue 6, Page 1146-1174, November 2025.
The fractional Brownian motion (fBm) process, governed by a fractional parameter H∈(0,1)$$ H\in \left(0,1\right) $$, is a continuous‐time Gaussian process with its increment being the fractional Gaussian noise (fGn). This article first provides a computationally feasible expression for the spectral density of fGn.
Shuping Shi, Jun Yu, Chen Zhang
wiley   +1 more source

Kredi Temerrüt Takası Primlerinin Oynaklığında Uzun Hafıza ve Etkin Piyasa Hipotezi - Fraktal Piyasa Hipotezi Sınaması: Türkiye Örneği

open access: yesGaziantep Üniversitesi Sosyal Bilimler Dergisi, 2021
Bu çalışmada, Türkiye’nin 2010 – 2020 dönemine ait ülke Kredi Temerrüt Takası Primlerinin finansal zaman serisi olarak özellikleri araştırılmış, parametrik ve yarı parametrik ön testler uygulanmıştır.
Mustafa Çevik, Süleyman Serdar Karaca
doaj   +1 more source

Long Memory Time-series Model (ARFIMA) Based Modelling of Jute Prices in the Samsi Market of Malda District, West Bengal

open access: yesJournal of Scientific Research and Reports
The objective of this paper is modeling and forecasting the weekly jute prices of Samsi market in the Malda district of West Bengal in the presence of long memory process.
Chowa Ram Sahu   +2 more
semanticscholar   +1 more source

S&P 500 microstructure noise components: empirical inferences from futures and ETF prices

open access: yesJournal of Time Series Analysis, Volume 46, Issue 6, Page 1032-1063, November 2025.
By studying the differences between futures prices and exchange‐traded fund prices for the S&P 500 index, original results are obtained about the distribution and persistence of the microstructure noise component created by positive bid‐ask spreads and discrete price scales.
Stephen J. Taylor
wiley   +1 more source

Optimal spectral bandwidth for long memory [PDF]

open access: yes, 1993
For long range dependent time series with a spectral singularity at frequency zero, a theory for optimal bandwidth choice in non-parametric analysis ofthe singularity was developed by Robinson (1991b).
Delgado, Miguel A., Robinson, Peter M.
core   +10 more sources

Applying (ARFIMA) Model for Forecast the Saudi Stock Market Prices

open access: yesInternational Journal for Scientific Research
The interest in the topic of time series forecasting has increased during the recent years and thus appeared specific modern methods, for example Autoregressive Fractional Integrated Moving Average model (ARFIMA), or what is called long memory model ...
Khalid Genawi, Rugia Elbashir
semanticscholar   +1 more source

Local powers of least‐squares‐based test for panel fractional Ornstein–Uhlenbeck process

open access: yesJournal of Time Series Analysis, Volume 46, Issue 5, Page 997-1023, September 2025.
In recent years, significant advancements have been made in the field of identifying financial asset price bubbles, particularly through the development of time‐series unit‐root tests featuring fractionally integrated errors and panel unit‐root tests.
Katsuto Tanaka, Weilin Xiao, Jun Yu
wiley   +1 more source

INTERNATIONAL TOURISTS’ EXPENDITURES IN THAILAND: A MODELLING OF THE ARFIMA-FIGARCH APPROACH [PDF]

open access: yesAnnals of the University of Petrosani: Economics, 2010
Forecasting is an essential analytical tool for tourism policy andplanning. This paper focuses on forecasting methods based on ARFIMA(p,d,q)-FIGARCH(p,d,q).
KANCHANA CHOKETHAWORN   +5 more
doaj  

نمذجة وتحليل أسعار الموز في مدينة الموصل باستخدام نموذج ARFIMA "دراسة تنبؤيه للسوق [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية
تناولت هذه الدراسة استخدام نماذج ARFIMA للتنبؤ بأسعار الموز المستورد في مدينه الموصل وذلك بالاعتماد على البيانات التي تم الحصول عليها من مديريه زراعه نينوى للفترة من سنه 2018 لغايه 2023 حيث استخدم في البحث عده طرق لتقدير الذاكرة الطويلة وتحديد قيمه معلمه
{حاب طلال, عمر سالم
doaj   +1 more source

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