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Edge technology aims to bring cloud resources (specifically, the computation, storage, and network) to the closed proximity of the edge devices, i.e., smart devices where the data are produced and consumed. Embedding computing and application in edge devices lead to emerging of two new concepts in edge technology: edge computing and edge analytics. Edge analytics uses some techniques or algorithms to analyse the data generated by the edge devices. With the emerging of edge analytics, the edge devices have become a complete set. Currently, edge analytics is unable to provide full support to the analytic techniques. The edge devices cannot execute advanced and sophisticated analytic algorithms following various constraints such as limited power supply, small memory size, limited resources, etc. This article aims to provide a detailed discussion on edge analytics. The key contributions of the paper are as follows-a clear explanation to distinguish between the three concepts of edge technology: edge devices, edge computing, and edge analytics, along with their issues. In addition, the article discusses the implementation of edge analytics to solve many problems and applications in various areas such as retail, agriculture, industry, and healthcare. Moreover, the research papers of the state-of-the-art edge analytics are rigorously reviewed in this article to explore the existing issues, emerging challenges, research opportunities and their directions, and applications.
Nayak et al. (Thu,) studied this question.