中文
相关论文

相关论文: A changepoint approach to modelling non-stationary…

200 篇论文

Continuous soil-moisture measurements provide a direct lens on subsurface hydrological processes, notably the post-rainfall "drydown" phase. Because these records consist of distinct, segment-specific behaviours whose forms and scales vary…

应用统计 · 统计学 2025-09-17 Mengyi Gong , Christopher Nemeth , Rebecca Killick , Peter Strauss , John Quinton

Detecting changes in data streams is a vital task in many applications. There is increasing interest in changepoint detection in the online setting, to enable real-time monitoring and support prompt responses and informed decision-making.…

统计方法学 · 统计学 2024-05-27 Victor K. Khamesi , Niall M. Adams , Dean A. Bodenham , Edward A. K. Cohen

Soil moisture is an important component of precision agriculture as it directly impacts the growth and quality of vegetation. Forecasting soil moisture is essential to schedule the irrigation and optimize the use of water. Physics based…

机器学习 · 计算机科学 2022-05-17 Anoushka Vyas , Sambaran Bandyopadhyay

Most climate trend studies analyze long-term trends as a proxy for climate dynamics. However, when examining seasonal data, it is unrealistic to assume that long-term trends remain consistent across all seasons. Instead, each season likely…

应用统计 · 统计学 2025-12-04 Jaechoul Lee , Mintaek Lee , Thea Sukianto

In this paper, we present a change point detection method for detecting change points in multivariate nonstationary wind speed time series. The change point method identifies changes in the covariance structure and decomposes the…

统计方法学 · 统计学 2021-05-25 Sakitha Ariyarathne , Harsha Gangammanavar , Raanju R. Sundararajan

As both a central task in Remote Sensing and a common problem in many other situations involving time series data, change point detection boasts a thorough and well-documented history of study. However, the treatment of missing data and…

应用统计 · 统计学 2015-04-01 Hunter Glanz , Xiaoman Huang , Minhui Zheng , Luis E. Carvalho

This paper describes a novel approach to change-point detection when the observed high-dimensional data may have missing elements. The performance of classical methods for change-point detection typically scales poorly with the…

机器学习 · 统计学 2015-06-11 Yao Xie , Jiaji Huang , Rebecca Willett

Soil moisture is an important variable that determines floods, vegetation health, agriculture productivity, and land surface feedbacks to the atmosphere, etc. Accurately modeling soil moisture has important implications in both weather and…

机器学习 · 计算机科学 2020-11-30 Kuai Fang , Chaopeng Shen , Daniel Kifer

Deep understanding of a field's soil moisture content is the leading indicator for predicting crop yields and making data driven decisions for irrigation and application of topical chemicals for drought resilience. Despite this importance,…

人机交互 · 计算机科学 2026-04-30 Jack Thoene , Omar Kamil , Thekra Alkadee , Nivedita Arora

Change points in real-world systems mark significant regime shifts in system dynamics, possibly triggered by exogenous or endogenous factors. These points define regimes for the time evolution of the system and are crucial for understanding…

机器学习 · 统计学 2025-09-30 Ioanna-Yvonni Tsaknaki , Fabrizio Lillo , Piero Mazzarisi

Motivated by an example from remote sensing of gas emission sources, we derive two novel change point procedures for multivariate time series where, in contrast to classical change point literature, the changes are not required to be…

统计方法学 · 统计学 2020-04-07 Idris Eckley , Claudia Kirch , Silke Weber

Improving the accuracy of soil moisture estimation is required for advancing irrigation scheduling and water conservation efforts. Central to this task are soil hydraulic parameters, which govern moisture dynamics but are rarely known…

系统与控制 · 电气工程与系统科学 2025-06-06 Bernard T. Agyeman , Erfan Orouskhani , Mohamed Naouri , Willemijn Appels , Maik Wolleben , Jinfeng Liu , Sirish L. Shah

Climate change, population growth, and water scarcity present unprecedented challenges for agriculture. This project aims to forecast soil moisture using domain knowledge and machine learning for crop management decisions that enable…

In river flow analysis and forecasting there are some key elements to consider in order to obtain reliable results. For example, seasonality is often accounted for in statistical models because climatic oscillations occurring every year…

应用统计 · 统计学 2019-06-19 Domenico Cucina , Manuel Rizzo , Eugen Ursu

Soil moisture is a quantity of interest in many application areas including agriculture and climate modeling. Existing methods are not suitable for scale applications due to large deployment costs in high-resolution sensing applications…

机器人学 · 计算机科学 2025-07-18 Nathaniel Rose , Hannah Chuang , Manuel A Andrade-Rodriguez , Rishi Parashar , Dani Or , Parikshit Maini

Different disciplines pursue the aim to develop models which characterize certain phenomena as accurately as possible. Climatology is a prime example, where the temporal evolution of the climate is modeled. In order to compare and improve…

统计方法学 · 统计学 2017-02-03 T. M. Erhardt , C. Czado , T. L. Thorarinsdottir

This paper proposes an information theory approach to estimate the number of changepoints and their locations in a climatic time series. A model is introduced that has an unknown number of changepoints and allows for series…

应用统计 · 统计学 2010-10-08 QiQi Lu , Robert Lund , Thomas C. M. Lee

Given the growing environmental challenges, accurate monitoring and prediction of changes in water bodies are essential for sustainable management and conservation. The Continuous Monitoring of Land Disturbance (COLD) algorithm provides a…

机器学习 · 计算机科学 2025-04-07 Huong Pham , Samuel Cheng , Tao Hu , Chengbin Deng

Soil moisture (SM) is a key state variable of the hydrological cycle, needed to monitor the effects of a changing climate on natural resources. Soil moisture is highly variable in space and time, presenting seasonalities, anomalies and…

大气与海洋物理 · 物理学 2020-12-10 Diego Bueso , Maria Piles , Gustau Camps-Valls

We have analyzed phenology data and protein configurations from molecular dynamics simulations with the nonlinear forecasting method proposed by May and Sugihara. Our primary focus in this work is to characterize the dynamic state of a…

‹ 上一页 1 2 3 10 下一页 ›