Lihua Lin

Lihua Lin


Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

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

Representative Publications

View All Publications
9 September 2020 in Complex & Intelligent Systems
Verified
Journal Article
Open access
PDF file
LLLihua Lin
Lihua Lin
CWChuzheng Wu
Chuzheng Wu
LMLi Ma
Li Ma
The shortest path problem (SPP) is an optimization problem of determining a path between specified source vertexsand destination vertextin a fuzzy network. Fuzzy logic can handle the uncertainties, associated with the information of any real life problem, where conventional mathematical models may fail to reveal proper result. In classical SPP, real numbers are used to represent the arc length of the network. However, the uncertainties related with the linguistic description of arc length in SPP are not properly represented by real number. We need to address two main matters in SPP with fuzzy arc lengths. The first matter is how to calculate the path length using fuzzy addition operation and the second matter is how to compare the two different path lengths denoted by fuzzy parameter. We use the graded mean integration technique of triangular fuzzy numbers to solve this two problems. A common heuristic algorithm to solve the SPP is the genetic algorithm. In this manuscript, we have introduced an algorithmic method based on genetic algorithm for determining the shortest path between a source vertex s and destination vertex t in a fuzzy graph with fuzzy arc lengths in SPP. A new crossover and mutation is introduced to solve this SPP. We also describe the QoS routing problem in a wireless ad hoc network.

15 July 2024 in Applied Sciences
Verified
Journal Article
Open access
PDF file
LLLihua Lin
Lihua Lin
HYHaodong Yang
Haodong Yang
QXQingchuan Xu
Qingchuan Xu
YXYanan Xue
Yanan Xue
DLDan Li
Dan Li
With the rapid development of artificial intelligence and big data technology, intelligent education systems have become a key research focus in the field of modern educational technology. This study aims to enhance the intelligence level of educational systems by accurately detecting student behavior in the classroom using deep learning techniques. We propose a method for detecting student classroom behavior based on an improved RT DETR (Real-Time Detection Transformer) object detection algorithm. By combining actual classroom observation data with AI-generated data, we create a comprehensive and diverse student behavior dataset (FSCB-dataset). This dataset not only more realistically simulates the classroom environment but also effectively addresses the scarcity of datasets and reduces the cost of dataset construction. The study introduces MobileNetV3 as a lightweight backbone network, reducing the model parameters to one-tenth of the original while maintaining nearly the same accuracy. Additionally, by incorporating learnable position encoding and dynamic upsampling techniques, the model significantly improves its ability to recognize small objects and complex scenes. Test results on the FSCB-dataset show that the improved model achieves significant improvements in real-time performance and computational efficiency. The lightweight network is also easy to deploy on mobile devices, demonstrating its practicality in resource-constrained environments.

2 June 2020 in IEEE Transactions on Industry Applications
Verified
Journal Article
Closed access
LLLihua Lin
Lihua Lin
MLMin Li
Min Li
LMLi Ma
Li Ma
MNMasooma Nazari
Masooma Nazari
SMSadegh Mahdavi
Sadegh Mahdavi
AYArda Yunianta
Arda Yunianta
Along with the many benefits, which the high penetration of wind turbine has brought to the smart grids, the issues arising due to the uncertainty effect is an inevitable phenomenon, which needs to be controlled. The high uncertainty effects can cause unstable operation and management scheduling plans, which can cause severe problems for both the operator and customers. This paper proposes a new quantization approach based on hybrid deep learning to capture the forecast error in the wind turbine output power. The proposed method is equipped with a long-short term memory (LSTM) model and recurrent neural network (RNN) to learn the most effective spatial-temporal features in wind turbine output power. Due to the high complexity of the data, a new optimization method based on a modified sine cos algorithm is proposed to help more stable training of the model. The feasibility and appropriate performance of the model is assessed through experimental analysis on two datasets in the Australia wind farms.