Sifeng BI

Dr. Sifeng BI

orcid

Research Focus & Metrics

Academic Career Length

16Years (2011-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
23 September 2023 in Mechanical Systems and Signal Processing
Verified
Journal Article
Open access
SBSifeng BI
Sifeng BI
MBMichael Beer
Michael Beer
SCScott Cogan
Scott Cogan
JMJohn Mottershead
John Mottershead

1 February 2019 in Mechanical Systems and Signal Processing
Verified
Journal Article
Closed access
SBSifeng BI
Sifeng BI
MBMatteo Broggi
Matteo Broggi
MBMichael Beer
Michael Beer

1 June 2019 in Mechanical Systems and Signal Processing
Verified
Journal Article
Closed access
PWPengfei Wei
Pengfei Wei
JSJingwen Song
Jingwen Song
SBSifeng BI
Sifeng BI
MBMatteo Broggi
Matteo Broggi
MBMichael Beer
Michael Beer
ZYZhufeng Yue
Zhufeng Yue

1 July 2019 in Mechanical Systems and Signal Processing
Verified
Journal Article
Closed access
PWPengfei Wei
Pengfei Wei
JSJingwen Song
Jingwen Song
SBSifeng BI
Sifeng BI
MBMatteo Broggi
Matteo Broggi
MBMichael Beer
Michael Beer
ZYZhufeng Yue
Zhufeng Yue

1 October 2017 in AIAA Journal
Verified
Journal Article
Closed access
SBSifeng BI
Sifeng BI
SPSaurabh Prabhu
Saurabh Prabhu
SCScott Cogan
Scott Cogan
SASez Atamturktur
Sez Atamturktur
Test-analysis comparison metrics are mathematical functions that provide a quantitative measure of the agreement (or lack thereof) between numerical predictions and experimental measurements. While calibrating and validating models, the choice of a metric can significantly influence the outcome, yet the published research discussing the role of metrics, in particular, varying levels of statistical information the metrics can contain, has been limited. This paper calibrates and validates the model predictions using alternative metrics formulated based on three types of distance-based criteria: 1) Euclidian distance (i.e., the absolute geometric distance between two points), 2) Mahalanobis distance (i.e., the weighted distance that considers the correlations of two point clouds), and 3) Bhattacharyya distance (i.e., the statistical distance between two point clouds considering their probabilistic distributions). A comparative study is presented in the first case study, where the influence of various metrics, and the varying levels of statistical information they contain, on the predictions of the calibrated models is evaluated. In the second case study, an integrated application of the distance metrics is demonstrated through a cross-validation process with regard to the measurement variability.

1 August 2019 in Mechanical Systems and Signal Processing
Verified
Journal Article
Closed access
SBSifeng BI
Sifeng BI
MBMatteo Broggi
Matteo Broggi
PWPengfei Wei
Pengfei Wei
MBMichael Beer
Michael Beer