Title
A Novel Semisupervised Regression Method for Online Total Nitrogen Detection Using Double Structural Sparse Feature Extraction
Abstract
To solve the problem of insufficient labeled samples in online total nitrogen (TN) detection, a novel semisupervised learning (SSL) method called double regularized structure graph learning (DRSGL) was proposed, which can effectively extract useful features and support the TN detection equipment to establish accurate detection models with few labeled samples. Based on temporal and spectral informativity, a high-quality graph structure method was designed first, which utilizes the spectrum-temporal prior knowledge hidden in the spectrum and enhances the efficiency of the graph model. Then, considering the double sparsity of TN spectrum samples, a double structural sparse feature selection method ((DSFS)-F-2) was invented accordingly, which can excavate useful information from both spectral and temporal dimensions. Finally, to address the insufficient problem of labeled samples, an adaptive SSL method was constructed by combining graph learning strategy and (DSFS)-F-2 and applied to the TN rapid detection prototype, which can iteratively select important features and update graph structure of samples correspondingly. According to the experimental results based on practical application, DRSGL can effectively solve the problem brought by the insufficiency of labeled samples, which can utilize only 20% labeled samples to establish an accurate detection model satisfied national detection standard with a relative error lower than 10%.
Year
DOI
Venue
2022
10.1109/TIM.2022.3187709
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
Keywords
DocType
Volume
Feature extraction, Spectroscopy, Nitrogen, Task analysis, Supervised learning, Sparse matrices, Semisupervised learning, In suite measurement, semisupervised learning (SSL), sparse feature selection, total nitrogen (TN) detection, ultraviolet (UV) spectroscopy
Journal
71
ISSN
Citations 
PageRank 
0018-9456
0
0.34
References 
Authors
0
7
Name
Order
Citations
PageRank
Jingxuan Geng100.34
Chunhua Yang243571.63
Yonggang Li305.07
Fengxue Zhang400.34
Lijuan Lan501.69
Jie Han600.34
Can Zhou775.68