Distributed Feature Selection Considering Data Pricing Based on Edge Computing in Electricity Spot Markets

【Author】 Hu, Yufei; Guan, Xin; Hu, Benran; Liu, Yongnan; Chen, Hongyang; Ohtsuki, Tomoaki

【Source】IEEE INTERNET OF THINGS JOURNAL

【影响因子】10.238

【Abstract】With the rapid development of information technology, the multisource heterogeneous data containing meaningful information have been significantly generated by various edge devices in Internet of Energy, which is one of essential foundations of many knowledge discovery tasks based on edge computing. For some complicated tasks, essential features are owned by different data sellers offering data by blockchains. With limited budgets, buying features are crucial steps in knowledge discovery tasks in electricity spot markets, especially for learning-based algorithms. However, there are lack of proper data pricing mechanisms tailored to dynamic learning processes. Besides, existing methods cannot efficiently employ edge computing servers to obtain optimal policies for selecting features according to dynamic pricing with limited budgets. To overcome such drawbacks, a data pricing mechanism is proposed in this article, which consists of static and dynamic pricing parts. Based on this mechanism, given limited budgets, a feature selection (FS) algorithm considering multiple new factors is proposed, which offers near-optimal solutions for FS at different scenarios. Numeric results show the effectiveness of the proposed algorithms.

【Keywords】Pricing; Feature extraction; Blockchains; Computational modeling; Edge computing; Task analysis; Heuristic algorithms; Data pricing; deep learning; Internet of Energy

【发表时间】2023 1-Feb

【收录时间】2023-05-29

【文献类型】实验仿真

【主题类别】

区块链应用-实体经济-电力领域