Results 61 to 70 of about 72,436 (339)

Spatial Autoregressive Fractionally Integrated Moving Average Model

In this paper, we introduce the concept of fractional integration for spatial autoregressive models. We show that the range of the dependence can be spatially extended or diminished by introducing a further fractional integration parameter to spatial autoregressive moving average models (SARMA).
Otto, Philipp, Sibbertsen, Philipp
openaire   +3 more sources

An Evaluation of ARFIMA (Autoregressive Fractional Integral Moving Average) Programs [PDF]

Axioms, 2017
Strong coupling between values at different times that exhibit properties of long range dependence, non-stationary, spiky signals cannot be processed by the conventional time series analysis. The autoregressive fractional integral moving average (ARFIMA) model, a fractional order signal processing technique, is the generalization of the conventional ...
Kai Liu, YangQuan Chen, Xi Zhang
openaire   +1 more source

Delayformer: Spatiotemporal Transformation for Predicting High‐Dimensional Dynamics

Advanced Science, EarlyView.
Delayformer introduces a multivariate spatiotemporal transformation (mvSTI) that converts observed variables into delay‐embedded states and cross‐learns their dynamics using a shared Vision Transformer encoder. This approach, grounded in dynamical systems theory, simultaneously predicts all variables in high‐dimensional systems, outperforming state‐of ...
Zijian Wang, Peng Tao, Luonan Chen
wiley   +1 more source

Peramalan Jumlah Mahasiswa Baru dengan Model Autoregressive Integrated Moving Average (Arima) [PDF]

, 2017
Peramalan jumlah mahasiswa baru merupakan salah satu hal yang dapat dipakai untuk bahan perencanaan proses belajar mengajar, oleh karena itu perlu dilakukan prediksi jumlah mahasiswa baru. Penelitian ini dilakukan di kampus STMIK Pradnya Paramita Malang.
As’ad, M. (Mohamad), Sophia, E. (Evy), Wibowo, S. S. (Sigit)   +2 more
core  

Transfer Function Analysis: Modelling Residential Building Costs in New Zealand by Including the Influences of House Price and Work Volume [PDF]

, 2019
An accurate cost estimate not only plays a key role in project feasibility studies but also in achieving a final successful outcome. Conventionally, estimating cost typically relies on the experience of professionals and cost data from previous projects.
Liu, Zhansheng, Mbachu, Jasper, Zhang, Huirong, Zhao, Linlin   +3 more
core   +1 more source

Utilizing Cooperative Proton–Electron Mixed Conduction Induced via Chemical Dedoping of Self‐Doped Poly(3,4‐ethylenedioxythiophene) Nanofilms for In‐Material Physical Reservoirs

Advanced Science, EarlyView.
This study demonstrates a new concept for high‐performance in‐material physical reservoirs (PRs). An intrinsic and cooperative ion–electron state, induced by chemical dedoping in self‐doped poly(3,4‐ethylenedioxythiophene) (S‐PEDOT) nanofilms, enhances the performance of in‐material PRs.
Yuya Ishizaki‐Betchaku, Motoaki Onishi, Tomoki Misaka, Mitsuo Hara, Hirokazu Yano, Hidenori Okuzaki, Jun Matsui, Tsuyoshi Hasegawa, Takuya Matsumoto, Hirofumi Tanaka, Shusaku Nagano   +10 more
wiley   +1 more source

Enhancing Sales Performance through ARIMA-Based Predictive Modeling: Insights and Applications Model

Journal of Information Systems and Informatics
Gociko Snack, a Micro, Small, and Medium Enterprise (MSME), often faces significant challenges in managing its inventory due to the unpredictable nature of market demand.
Dwi Hartanti, Hanifah Permatasari
doaj   +1 more source

Clinical and epidemiological rounds. Time series

Iatreia, 2016
Analysis of time series is a technique that implicates the study of individuals or groups observed in successive moments in time. This type of analysis allows the study of potential causal relationships between different variables that change over time ...
León-Álvarez, Alba Luz, Betancur-Gómez, Jorge Iván, Jaimes-Barragán, Fabián, Grisales-Romero, Hugo   +3 more
doaj   +1 more source

Forecasting arabica coffee yields by auto-regressive integrated moving average and machine learning approaches

AIMS Agriculture and Food, 2023
Coffee is a major industrial crop that creates high economic value in Thailand and other countries worldwide. A lack of certainty in forecasting coffee production could lead to serious operation problems for business.
Yotsaphat Kittichotsatsawat , Anuwat Boonprasope, Erwin Rauch, Nakorn Tippayawong, Korrakot Yaibuathet Tippayawong   +4 more
doaj   +1 more source

Modeling volatility in heat rate variability [PDF]

, 2016
Modeling Heart Rate Variability (HRV) data has become important for clinical applications and as a research tool. These data exhibit long memory and time-varying conditional variance (volatility).
Leite, A, Maria Eduarda Silva, Rocha, AP
core   +1 more source