Results 91 to 100 of about 45,179 (311)

Price Transmission and Leadership in the Global Poultry Market: Results From Parametric and Nonparametric Approaches

Agribusiness, EarlyView.
ABSTRACT Brazil and the United States account for more than 40% of global poultry exports, with China and South Korea among their major destination markets. This study examines price transmission and market linkages between Brazil and the United States using monthly poultry export price data from January 1990 to December 2024. It also assesses which of
Khondoker Abdul Mottaleb, Shaikh M. Rahman, Syed Imran Ali Meerza   +2 more
wiley   +1 more source

Novel Discrete Chris–Jerry Distribution: Properties, Integer Autoregressive Process, and Applications

Journal of Probability and Statistics
A unique one-parameter discrete distribution, known as the Poisson Two-Sum Chris–Jerry distribution, is proposed in this study. The structural properties of the contemporary distribution, such as index of dispersion, moments, and probability-generating ...
Abdul Hamid Amidu, Abdul Ghaniyyu Abubakari, Suleman Nasiru   +2 more
doaj   +1 more source

Probability Tail for Linearly Negative Quadrant Dependent Random Variables of Partial Sums and Application to Linear Model

Journal of Innovative Applied Mathematics and Computational Sciences, 2022
In this paper, we establish a new concentration inequality and complete convergence of weighted sums for arrays of rowwise linearly negative quadrant dependent (LNQD, in short) random variables and obtain a result dealing with complete convergence of ...
Zoubeyr Kaddour, Abderrahmane Belguerna, Samir Benaissa   +2 more
doaj  

A note on the Bickel-Rosenblatt test in autoregressive time series [PDF]

In a recent paper Lee and Na (2001) introduced a test for a parametric form of the distribution of the innovations in autoregressive models, which is based on the integrated squared error of the nonparametric density estimate from the residuals and a ...
Bachmann, Dirk, Dette, Holger
core  

Large Language Model in Materials Science: Roles, Challenges, and Strategic Outlook

Advanced Intelligent Discovery, EarlyView.
Large language models (LLMs) are reshaping materials science. Acting as Oracle, Surrogate, Quant, and Arbiter, they now extract knowledge, predict properties, gauge risk, and steer decisions within a traceable loop. Overcoming data heterogeneity, hallucinations, and poor interpretability demands domain‐adapted models, cross‐modal data standards, and ...
Jinglan Zhang, Xinyi Chen, Xu Ye, Yulin Yang, Bin Ai   +4 more
wiley   +1 more source

Homogeneity Test Based Voice Activity Detection

Al-Lisaniyyat, 2014
In this paper a new approach for voice activity detection (VAD) is proposed. This technique is based on homogeneity test of two autoregressive (AR) processes; each one models a speech window and involves the measure of a defined distance.
Ouahbi Rekik, Mustapha Djeddou
doaj   +1 more source

Strict Stationarity of Generalized Autoregressive Processes

The Annals of Probability, 1992
The authors consider the multivariate stochastic difference equation \(X_{n+1}=A_{n+1}X_ n+B_{n+1}\), \(n\in\mathbb{Z}\), where \(X_ n\) and \(B_ n\) are random vectors in \(\mathbb{R}^ d\), \(d\geq 1\), \(A_ n\) is a random \(d\times d\) matrix, \(n\in\mathbb{Z}\), and \(\{(A_ n,B_ n),n\in\mathbb{Z}\}\) is a strictly stationary ergodic process ...
Bougerol, Philippe, Picard, Nico
openaire   +3 more sources

An Autonomous Large Language Model‐Agent Framework for Transparent and Local Time Series Forecasting

Advanced Intelligent Discovery, EarlyView.
Architecture of the proposed large language model (LLM)‐based agent framework for autonomous time series forecasting in thermal power generation systems. The framework operates through a vertical pipeline initiated by natural language queries from users, which are processed by the LLM Agent Core powered by Llama.cpp and a ReAct loop with persistent ...
William Gouvêa Buratto, Gabriel Villarrubia Gonzalez, Ademir Nied, Laio Oriel Seman, Anne Carolina Rodrigues Klaar, Stefano Frizzo Stefenon   +5 more
wiley   +1 more source