A survey of distributed data aggregation algorithms
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This document is a survey of distributed data aggregation algorithms, highlighting their importance in determining global properties for decentralized applications. It reviews various approaches, categorizes them into a taxonomy, and provides guidelines for selecting appropriate techniques based on their characteristics. The survey aims to simplify the process of understanding and utilizing different aggregation methods.
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A survey of distributed data aggregation algorithms
- 1. A Survey of Distributed Data Aggregation Algorithms Abstract: Distributed data aggregation is an important task, allowing the decentralized determination of meaningful global properties, which can then be used to direct the execution of other applications. The resulting values are derived by the distributed computation of functions like Count, Sum, and Average. Some application examples deal with the determination of the network size, total storage capacity, average load, majorities and many others. In the last decade, many different approaches have been proposed, with different trade-offs in terms of accuracy, reliability, message and time complexity. Due to the considerable amount and variety of aggregation algorithms, it can be difficult and time consuming to determine which techniques will be more appropriate to use in specific settings, justifying the existence of a survey to aid in this task. This work reviews the state of the art on distributed data aggregation algorithms, providing three main contributions. First, it formally defines the concept of aggregation, characterizing the different types of aggregation functions. Second, it succinctly describes the main aggregation techniques, organizing them in a taxonomy. Finally, it provides some guidelines toward the selection and use of the most relevant techniques, summarizing their principal characteristics.