Enqi Xu | Searcharxiv

arXiv2024

Using GeoGebra to discover the motion of device in a well-known physical experimental instrument -- Looking into vibration-damping devices in the scanning tunneling microscope

In this paper, we take a vibration-damping devices in the well-known physical experimental instrument--scanning tunneling microscope as the study base, and with the help of GeoGebra software, we explain in detail the principle of damping the vibration of the damper in the magnetic field to realize the vibration-damping function of the whole device and establish a clear physical picture and a correct and comprehensive knowledge. This question also shows the process of clarifying the meaning of the problem with the help of software tools.

physics.ed-ph↗

arXiv2023

Fair Causal Feature Selection

Fair feature selection for classification decision tasks has recently garnered significant attention from researchers. However, existing fair feature selection algorithms fall short of providing a full explanation of the causal relationship between features and sensitive attributes, potentially impacting the accuracy of fair feature identification. To address this issue, we propose a Fair Causal Feature Selection algorithm, called FairCFS. Specifically, FairCFS constructs a localized causal graph that identifies the Markov blankets of class and sensitive variables, to block the transmission of sensitive information for selecting fair causal features. Extensive experiments on seven public real-world datasets validate that FairCFS has comparable accuracy compared to eight state-of-the-art feature selection algorithms, while presenting more superior fairness.

cs.LG↗