Search Results for author: Shabbir Ahmed

Found 4 papers, 0 papers with code

Stochastic Identification-based Active Sensing Acousto-Ultrasound SHM Using Stationary Time Series Models

no code implementations26 Jan 2022 Shabbir Ahmed, Fotis Kopsaftopoulos

In this work, a probabilistic damage detection and identification scheme using stochastic time series models in the context of acousto-ultrasound guided wave-based SHM is proposed, and its performance is assessed experimentally.

Time Series Time Series Analysis

Time-varying Identification of Guided Wave Propagation under Varying Temperature via Non-Stationary Time Series Models

no code implementations12 Jan 2022 Shabbir Ahmed, Fotis Kopsaftopoulos

In order to circumvent this difficulty, in this paper, a novel stochastic time series-based framework was adopted to model guided wave propagation under varying temperatures.

TAR Time Series +1

Intrusion Detection and Localization for Networked Embedded Control Systems

no code implementations17 Jun 2021 Vuk Lesi, Marcio Juliato, Shabbir Ahmed, Christopher Gutierrez, Qian Wang, Manoj Sastry

In this paper we present a physics-based Intrusion Detection System (IDS) aimed at increasing the security in control systems.

Intrusion Detection

Learning to Solve Large-Scale Security-Constrained Unit Commitment Problems

no code implementations4 Feb 2019 Alinson S. Xavier, Feng Qiu, Shabbir Ahmed

Security-Constrained Unit Commitment (SCUC) is a fundamental problem in power systems and electricity markets.

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