Publication

Electricity Theft Detection Using Dynamic Graph Construction and Graph Attention Network

Abstract

The integrations of advanced metering infrastructure and smart meters make it possible to detect electricity thieves by analyzing electricity consumption readings. However, the detection accuracies of traditional models are limited due to their difficulty in capturing the periodicity and latent features from electricity consumption readings. To solve this problem, a graph attention network (GAT)-based model is proposed to improve the detection accuracy from a fresh viewpoint on graph domains. First, a new strategy is presented to transform raw one-dimensional electricity consumption readings into dynamic graphs, which represent the features and periodicity through feature matrices and correlation matrices, respectively. Then, a GAT is migrated from traditional graph inferences into electricity theft detection, in which necessary adjustments are made on structures to capture periodicity and latent features from dynamic graphs. Case studies show that the proposed model outperforms popular baselines for a wide range of training ratios and fraudulent ratios.

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Related concepts (25)
Smart meter
A smart meter is an electronic device that records information—such as consumption of electric energy, voltage levels, current, and power factor—and communicates the information to the consumer and electricity suppliers. Such an advanced metering infrastructure (AMI) differs from automatic meter reading (AMR) in that it enables two-way communication between the meter and the supplier. The term smart meter often refers to an electricity meter, but it also may mean a device measuring natural gas, water or district heating consumption.
Electricity meter
An electricity meter, electric meter, electrical meter, energy meter, or kilowatt-hour meter is a device that measures the amount of electric energy consumed by a residence, a business, or an electrically powered device. Electric meter or energy meter measures the total power consumed over a time interval. Electric utilities use electric meters installed at customers' premises for billing and monitoring purposes. They are typically calibrated in billing units, the most common one being the kilowatt hour (kWh).
Graph coloring
In graph theory, graph coloring is a special case of graph labeling; it is an assignment of labels traditionally called "colors" to elements of a graph subject to certain constraints. In its simplest form, it is a way of coloring the vertices of a graph such that no two adjacent vertices are of the same color; this is called a vertex coloring. Similarly, an edge coloring assigns a color to each edge so that no two adjacent edges are of the same color, and a face coloring of a planar graph assigns a color to each face or region so that no two faces that share a boundary have the same color.
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