Air Quality Analysis Based on Outlier Detection Algorithms
Year: 2025
Type: article
Abstract: This study employs an outlier detection algorithm based on the distance metric of the Two-Step clustering algorithm to analyze potential untrustworthy data in pollutant concentration records across the region of Beijing-Tianjin-Hebei. By calculating anomaly indices through designated formulas and evaluating variable contribution rates, abnormal data points were identified for each monitoring area. Subsequent analysis of these anomalies provides substantial evidence supporting the existence of unreliable data within the dataset.
DOI: 10.61784/ejst3083
Authors: QiZhi Zhang, Nan Jiang
Institution: Northeast Forestry University
Language: English
Subfield: Artificial Intelligence
Field: Computer Science
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W4410379082
