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arXiv 2103.00030eess.SP
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电力负荷需求曲线聚类框架的验证

Validating Clustering Frameworks for Electric Load Demand Profiles

Mayank Jain, Tarek AlSkaif, Soumyabrata Dev

摘要:

智能电表的大规模部署使得能够收集足够和高分辨率的居民用电需求数据。这些配置文件的聚类分析是重要的,以进一步分析和评论的电力消费模式。尽管多年来在文献中提出了许多聚类技术,但人们经常注意到不同的技术最适合不同的数据集。为了确定最合适的技术,通常使用标准的聚类有效性指标。这些指标主要关注聚类结果的内在特征。此外,不同的指数往往会给出相互矛盾的建议,这些建议只能通过关于数据集和/或预期聚类结构的统计学来澄清-在实际情况中很少有这种信息。本文提出了一种新的方案来验证和比较聚类结果客观。此外,该方案考虑了聚类算法之前的所有步骤,包括预处理和降维步骤,以提供完整框架的建议。因此,所提出的策略,以提供更好的,公正的,和统一的建议相比,标准的聚类有效性指数。

英文摘要:

Large-scale deployment of smart meters has made it possible to collect sufficient and high-resolution data of residential electric demand profiles. Clustering analysis of these profiles is important to further analyze and comment on electricity consumption patterns. Although many clustering techniques have been proposed in the literature over the years, it is often noticed that different techniques fit best for different datasets. To identify the most suitable technique, standard clustering validity indices are often used. These indices focus primarily on the intrinsic characteristics of the clustering results. Moreover, different indices often give conflicting recommendations which can only be clarified with heuristics about the dataset and/or the expected cluster structures -- information that is rarely available in practical situations. This paper presents a novel scheme to validate and compare the clustering results objectively. Additionally, the proposed scheme considers all the steps prior to the clustering algorithm, including the pre-processing and dimensionality reduction steps, in order to provide recommendations over the complete framework. Accordingly, the proposed strategy is shown to provide better, unbiased, and uniform recommendations as compared to the standard Clustering Validity Indices.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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