Title
When Smart Cities Get Smarter via Machine Learning: An In-Depth Literature Review
Abstract
The manuscript represents a comeprehensive and systematic literature review on the machine learning methods in the emerging applications of the smart cities. Application domains include the essential aspects of the smart cities including the energy, healthcare, transportation, security, and pollution. The research methodology presents a state-of-the-art taxonomy, evaluation and model performance where the ML algorithms are classified into one of the following four categories: decision trees, support vector machines, artificial neural networks, and advanced machine learning methods, i.e., hybrid methods, ensembles, and Deep Learning. The study found that the hybrid models and ensembles have better performance since they exhibit both a high accuracy and low overall cost. On the other hand, the deep learning (DL) techniques had a higher accuracy than the hybrid models and ensembles, but they demanded relatively higher computation power. Moreover, all these advanced ML methods had a slower processing speed than the single methods. Likewise, the support vector machine (SVM) and decision tree (DT) generally outperformed the artificial neural network (ANN) for accuracy and other metrics. However, since the difference was negligible, it can be concluded that using either of them is appropriate.
Year
DOI
Venue
2022
10.1109/ACCESS.2022.3181718
IEEE ACCESS
Keywords
DocType
Volume
Smart cities, Databases, Urban areas, Regression tree analysis, Medical services, Machine learning, Taxonomy, Smart city, big data, machine learning, ensemble, artificial intelligence, deep learning, data science, smart grid
Journal
10
ISSN
Citations 
PageRank 
2169-3536
0
0.34
References 
Authors
47
10