Zobrazeno 1 - 10
of 3 082
pro vyhledávání: '"change point detection"'
Autor:
Yang Du, Weihu Cheng
Publikováno v:
AIMS Mathematics, Vol 9, Iss 10, Pp 28698-28721 (2024)
In this paper, we enhanced change point detection in skew normal distribution models by integrating the EM algorithm's Q-function with the modified information criterion (MIC). The new QMIC framework improves sensitivity and accuracy in detecting cha
Externí odkaz:
https://doaj.org/article/cfeb664b83df4fc6a764bce7f078c01a
Autor:
Akinwale T. Ogunrinde, Xue Xian, Paul Adigun, Ifeoluwa S. Adawa, Dan Zhao, Zhanghong Xing, Igbekoyi J. Temitope
Publikováno v:
Big Earth Data, Pp 1-29 (2024)
This study delves into the complex relationship between teleconnection patterns and meteorological drought in Northwest China, highlighting the crucial influence of global circulation indices on regional drought dynamics. By analyzing precipitation a
Externí odkaz:
https://doaj.org/article/318d0346eae74cd88f1173f4b479cb78
Publikováno v:
Smart Learning Environments, Vol 11, Iss 1, Pp 1-19 (2024)
Abstract Expectations of big data across various fields, including education, are increasing. However, uncovering valuable insights from big data is like locating a needle in a haystack, and it is difficult for teachers to use educational big data on
Externí odkaz:
https://doaj.org/article/1c53b482b38e425c937e2ea57947de6b
Autor:
Du, Zhiyuan
Utilizing multiple biomarkers in medical research is crucial for the diagnostic accuracy of detecting diseases. An optimal method for combining these biomarkers is essential to maximize the Area Under the Receiver Operating Characteristic (ROC) Curve
Externí odkaz:
https://hdl.handle.net/10919/121207
Publikováno v:
Stats, Vol 7, Iss 2, Pp 462-480 (2024)
Change-point detection is a challenging problem that has a number of applications across various real-world domains. The primary objective of CPD is to identify specific time points where the underlying system undergoes transitions between different
Externí odkaz:
https://doaj.org/article/c5f36e9cbb954f5ab7b9c5134c852e0c
Publikováno v:
Defence Technology, Vol 35, Iss , Pp 275-288 (2024)
The task of modeling and analyzing intercepted multifunction radars (MFRs) pulse trains is vital for cognitive electronic reconnaissance. Existing methodologies predominantly rely on prior information or heavily constrained models, posing challenges
Externí odkaz:
https://doaj.org/article/3d7df61d864d4f9d96c3babf886fd4e7
Autor:
Tímea Kocsis, Rita Pongrácz, István Gábor Hatvani, Norbert Magyar, Angéla Anda, Ilona Kovács-Székely
Publikováno v:
Hungarian Geographical Bulletin, Vol 73, Iss 1, Pp 3-16 (2024)
The goal of the present paper is to investigate whether any objectively defined and statistically significant changes can be discovered in one of the longest homogenized instrumental temperature records in East-Central Europe. Thus, it is hoped that
Externí odkaz:
https://doaj.org/article/151f5da9649a45b88d80044f62f08670
Publikováno v:
IEEE Access, Vol 12, Pp 125145-125159 (2024)
Nowadays, Anomaly Detection (AD) models are incorporated into various systems, but they will become useless if they are not updated (i.e., re-trained) to keep up with changes in their external environment. When trying to automatically trigger AD mode
Externí odkaz:
https://doaj.org/article/0d3268a344c14e688e23bbd442e9992d
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 11208-11218 (2024)
This article studies the use of airborne global navigation satellite system reflectometry techniques for remote sensing applications at regional scale. The objective is to classify the reflectivity of airborne global navigation satellite system (GNSS
Externí odkaz:
https://doaj.org/article/7913dca4799e43c49ee6fefaaca7eefb
Publikováno v:
IEEE Open Journal of Control Systems, Vol 3, Pp 202-213 (2024)
This paper considers the change point detection problem under dependent samples. In particular, we provide performance guarantees for the MMD-CUSUM test under exponentially $\alpha$, $\beta$, and fast $\phi$-mixing processes, which significantly expa
Externí odkaz:
https://doaj.org/article/092aa38168eb41c0a471e140f787a5f3