A tantalum oxide based memristive neuron device for anomaly detection application

Anomaly detection, a data intensive task, is very important in wide application scenarios. Memristor has shown excellent performance in data intensive tasks. However, memristor used for anomaly detection has rarely been reported. In this Letter, a tantalum oxide (TaOx) memristive neuron device has b...

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Veröffentlicht in:Applied physics letters 2024-06, Vol.124 (23)
Hauptverfasser: Wu, Zuheng, Hu, Yang, Feng, Zhe, Zou, Jianxun, Guo, Wenbin, Lu, Jian, Shi, Tuo, Tan, Su, Wang, Zeqing, Yu, Ruihan, Zhu, Yunlai, Xu, Zuyu, Dai, Yuehua
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container_issue 23
container_start_page
container_title Applied physics letters
container_volume 124
creator Wu, Zuheng
Hu, Yang
Feng, Zhe
Zou, Jianxun
Guo, Wenbin
Lu, Jian
Shi, Tuo
Tan, Su
Wang, Zeqing
Yu, Ruihan
Zhu, Yunlai
Xu, Zuyu
Dai, Yuehua
description Anomaly detection, a data intensive task, is very important in wide application scenarios. Memristor has shown excellent performance in data intensive tasks. However, memristor used for anomaly detection has rarely been reported. In this Letter, a tantalum oxide (TaOx) memristive neuron device has been developed for anomaly detection application. TaOx, a CMOS compatible material, based memristor shows reliable threshold switching characteristics, which is suitable for constructing memristive neuron. Furthermore, the output frequency of the memristive neuron is found to be proportionate to the applied stimulus intensity and at an inflection point starts to decrease, namely, thresholding effect. Based on the thresholding effect of the neuron output, the application of the memristive neuron for anomaly detection has been simulated. The results indicate that the TaOx memristive neuron with thresholding effect shows better performance (98.78%) than the neuron without threshoding effect (90.89%) for anomaly detection task. This work provided an effective idea for developing memristive anomaly detection system.
doi_str_mv 10.1063/5.0212850
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subjects Anomalies
Memristors
Tantalum
Tantalum oxides
title A tantalum oxide based memristive neuron device for anomaly detection application
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