@INPROCEEDINGS{BoracchiICICIP2013, 
author={Alippi, C. and Boracchi, G. and Puig, V. and Roveri, M.}, 
booktitle={Intelligent Control and Information Processing (ICICIP), 2013 Fourth International Conference on}, 
title={An ensemble approach to estimate the fault-time instant}, 
year={2013}, 
pages={836-841}, 
abstract={Since systems are prone to faults, fault detection and isolation are essential activities to be considered in safety-critical applications. In this direction, the availability of a sound estimate of the time instant the fault occurred is a precious information that a diagnosis system can fruitfully exploit, e.g., to identify information consistent with the faulty state. Unfortunately, any fault-detection system introduces a structural delay that, typically, increases in correspondence of subtle faults (e.g., those characterized by a small magnitude) with a consequence that the fault-occurrence time is overestimated. In this paper we propose an ensemble approach to estimate the time instant a fault occurred. We focus on systems that can be described as ARMA models and faults inducing an abrupt change in the model coefficients.}, 
doi={10.1109/ICICIP.2013.6568188},}