Shan Li

Real world expression recognition: A highly imbalanced detection problem

2016

State-of-the-art methods have reported very high performance on facial expression detection. However, nearly all these previous work was conducted in strictly controlled environment, what's more, effects of imbalanced data have been neglected. A new database, …

Rate of convergence for data augmentation and inverse Bayes formula method in the genetic linkage model

2017

Many statistical problems can be formulated as the missing data problems. The data augmentation algorithm and the inverse Bayes formula are important tools for constructing iterative optimization or samplings via the introduction of unobserved data …

Unveiling emotion dynamics in problem-solving: a comprehensive analysis with an intelligent tutoring system using facial expressions and electrodermal activities

2024 · International Journal of Educational Technology in Higher Education

Abstract Emotions play a crucial role in the learning process, yet there is a scarcity of studies examining emotion dynamics in problem-solving with fine-grained data and advanced tools. This study addresses this gap by investigating …

Fault Localization of Distribution Network Based on Reverse-Local Learning Based Particle Swarm Optimization Algorithm

2024

With the large-scale access of distributed generation, the power flow characteristics of distribution network have been greatly changed. The conventional fault localization methods for distribution networks are no longer applicable. To deal with the problems …