Damage detection of nonlinear structures using probability density ratio estimation

2021 ◽  
Author(s):  
Yulong Zhang ◽  
John H.G. Macdonald ◽  
Song Liu ◽  
Paul W. Harper
Keyword(s):  
Damage Detection ◽  
Probability Density ◽  
Density Ratio ◽  
Nonlinear Structures ◽  
Ratio Estimation

Unsupervised Recycled FPGA Detection Based on Direct Density Ratio Estimation

2021 ◽  
Author(s):  
Yuya Isaka ◽  
Foisal Ahmed ◽  
Michihiro Shintani ◽  
Michiko Inoue
Keyword(s):  
Density Ratio ◽  
Ratio Estimation

Inlier-Based Outlier Detection via Direct Density Ratio Estimation

2008 ◽  
Author(s):  
Shohei Hido ◽  
Yuta Tsuboi ◽  
Hisashi Kashima ◽  
Masashi Sugiyama ◽  
Takafumi Kanamori
Keyword(s):  
Outlier Detection ◽  
Density Ratio ◽  
Ratio Estimation

scholarly journals Condition assessment of electro-mechanical actuators for aerospace using relative density-ratio estimation

2018 ◽  
Vol 51 (15) ◽  
pp. 957-962 ◽  
Author(s):  
M. Mazzoleni ◽  
M. Scandella ◽  
Y. Maccarana ◽  
F. Previdi ◽  
G. Pispola ◽  
...  
Keyword(s):  
Relative Density ◽  
Density Ratio ◽  
Condition Assessment ◽  
Ratio Estimation

Online Direct Density-Ratio Estimation Applied to Inlier-Based Outlier Detection

2015 ◽  
Vol 27 (9) ◽  
pp. 1899-1914
Author(s):  
Marthinus Christoffel du Plessis ◽  
Hiroaki Shiino ◽  
Masashi Sugiyama
Keyword(s):  
Outlier Detection ◽  
Density Estimation ◽  
Density Ratio ◽  
Learning Problems ◽  
Conditional Density ◽  
Ratio Estimation ◽  
Data Set ◽  
Step Procedure ◽  
Training Samples ◽  
Probability Densities

Many machine learning problems, such as nonstationarity adaptation, outlier detection, dimensionality reduction, and conditional density estimation, can be effectively solved by using the ratio of probability densities. Since the naive two-step procedure of first estimating the probability densities and then taking their ratio performs poorly, methods to directly estimate the density ratio from two sets of samples without density estimation have been extensively studied recently. However, these methods are batch algorithms that use the whole data set to estimate the density ratio, and they are inefficient in the online setup, where training samples are provided sequentially and solutions are updated incrementally without storing previous samples. In this letter, we propose two online density-ratio estimators based on the adaptive regularization of weight vectors. Through experiments on inlier-based outlier detection, we demonstrate the usefulness of the proposed methods.

A Constructive Setting for the Problem of Density Ratio Estimation

2014 ◽  
Author(s):  
Vladimir Vapnik ◽  
Igor Braga ◽  
Rauf Izmailov
Keyword(s):  
Density Ratio ◽  
Ratio Estimation

In-Vehicle Network Intrusion Detection and Explanation Using Density Ratio Estimation

2019 ◽  
Author(s):  
Daiki Tanaka ◽  
Makoto Yamada ◽  
Hisashi Kashima ◽  
Takeshi Kishikawa ◽  
Tomoyuki Haga ◽  
...  
Keyword(s):  
Intrusion Detection ◽  
Density Ratio ◽  
Network Intrusion Detection ◽  
Ratio Estimation ◽  
Network Intrusion ◽  
Vehicle Network

Regression Prediction For Geolocation Aware Through Relative Density Ratio Estimation

2019 ◽  
Author(s):  
Bo Dong ◽  
Jinghui Guo ◽  
Zhuoyi Wang ◽  
Rong Wu ◽  
Yang Gao ◽  
...  
Keyword(s):  
Relative Density ◽  
Density Ratio ◽  
Ratio Estimation

Dimensionality reduction for density ratio estimation in high-dimensional spaces

2010 ◽  
Vol 23 (1) ◽  
pp. 44-59 ◽  
Author(s):  
Masashi Sugiyama ◽  
Motoaki Kawanabe ◽  
Pui Ling Chui
Keyword(s):  
Dimensionality Reduction ◽  
Density Ratio ◽  
High Dimensional ◽  
Ratio Estimation

scholarly journals Nearest neighbor density ratio estimation for large-scale applications in astronomy

2015 ◽  
Vol 12 ◽  
pp. 67-72 ◽  
Author(s):  
J. Kremer ◽  
F. Gieseke ◽  
K. Steenstrup Pedersen ◽  
C. Igel
Keyword(s):  
Large Scale ◽  
Nearest Neighbor ◽  
Density Ratio ◽  
Ratio Estimation

scholarly journals Direct Density Ratio Estimation for Large-scale Covariate Shift Adaptation

2009 ◽  
Vol 17 ◽  
pp. 138-155 ◽  
Author(s):  
Yuta Tsuboi ◽  
Hisashi Kashima ◽  
Shohei Hido ◽  
Steffen Bickel ◽  
Masashi Sugiyama
Keyword(s):  
Large Scale ◽  
Density Ratio ◽  
Ratio Estimation
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