Air Quality Station Simulation via LSTM and Attention-Based Modelling
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Computer Science > Machine Learning
Title:Air Quality Station Simulation via LSTM and Attention-Based Modelling
Abstract:Poor air quality in urban areas is driven by a complex chain of processes and presents a significant public health concern. To better understand and control the mechanisms that determine air quality, cities deploy networks of measurement stations, and launch initiatives for collecting denser data about the concentration of pollutants in the atmosphere. Extracting insights from the stations relies on their reliable and uninterrupted operation. However, hardware is susceptible to faults and black- outs that may result in data unavailability, which affects the overall quality of analyses. In this paper, we present a deep-learning model, called SATADL, which can infer complex relations and output multiple-hour-ahead air-quality forecasts. The goal of the model is to simulate the mea- surements of an unresponsive station until its operation is restored. The architecture of the model, which allows it to extract information from different aspects of the data, is described in detail and a careful examination of all of its components is provided. We demonstrate the performance of SATADL on four sets of air quality stations from around the world, by using it to simulate the concentration of PM10 for periods of hypothetical failures of one of the measurement stations, lasting for as long as 48 hours. A selection of baseline and published deep learning models were trained and used as a benchmark. The results show that SATADL per- forms better across different prediction windows, for both coefficient of determination and root mean squared error, demonstrating its suitability as a virtual proxy station.
| Comments: | Preprint prepared as an extension to the conference article at this https URL, which describes some features of the proposed model. The preprint includes more tests and better concept explanations |
| Subjects: | Machine Learning (cs.LG) |
| Cite as: | arXiv:2608.11839 [cs.LG] |
| (or arXiv:2608.11839v1 [cs.LG] for this version) | |
| https://doi.org/10.48550/arXiv.2608.11839
arXiv-issued DOI via DataCite (pending registration)
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