Work In Progress: Safety and Robustness Verification of Autoencoder-Based Regression Models using the NNV Tool

• URL: http://arxiv.org/abs/2207.06759v1
• Date: Thu, 14 Jul 2022 09:10:30 GMT
• Title: Work In Progress: Safety and Robustness Verification of Autoencoder-Based Regression Models using the NNV Tool
• Authors: Neelanjana Pal (Department of Electrical and Computer Engineering Vanderbilt University, USA), Taylor T Johnson (Department of Electrical and Computer Engineering Vanderbilt University, USA)
• Abstract summary: This work introduces robustness verification for autoencoder-based regression neural network (NN) models. We introduce two definitions of robustness evaluation metrics for autoencoder-based regression models. As per the authors' understanding, this work in progress paper is the first to show possible reachability analysis of autoencoder-based NNs.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: This work in progress paper introduces robustness verification for autoencoder-based regression neural network (NN) models, following state-of-the-art approaches for robustness verification of image classification NNs. Despite the ongoing progress in developing verification methods for safety and robustness in various deep neural networks (DNNs), robustness checking of autoencoder models has not yet been considered. We explore this open space of research and check ways to bridge the gap between existing DNN verification methods by extending existing robustness analysis methods for such autoencoder networks. While classification models using autoencoders work more or less similar to image classification NNs, the functionality of regression models is distinctly different. We introduce two definitions of robustness evaluation metrics for autoencoder-based regression models, specifically the percentage robustness and un-robustness grade. We also modified the existing Imagestar approach, adjusting the variables to take care of the specific input types for regression networks. The approach is implemented as an extension of NNV, then applied and evaluated on a dataset, with a case study experiment shown using the same dataset. As per the authors' understanding, this work in progress paper is the first to show possible reachability analysis of autoencoder-based NNs.

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