We present a novel method for scalable and precise certification of deep neural networks. The key technical insight behind our approach is a new abstract domain which combines floating point polyhedra with intervals and is equipped with abstract transformers specifically tailored to the domain of neural networks. Concretely, we introduce new transformers for the affine transform, the rectified linear unit (ReLU) activation, sigmoid, tanh, and maxpool functions.
We implemented our method in a system called DeepPoly and evaluated it extensively on a range of datasets, neural architectures, and specifications. Our experimental results indicate that DeepPoly is more precise than prior work while scaling to large networks. We also show how to combine DeepPoly with abstraction refinement in order to prove, for the first time, robustness of the given input (e.g., an image) to complex perturbations such as rotations.
Wed 16 Jan Times are displayed in time zone: Greenwich Mean Time : Belfast change
|15:21 - 15:43|
Uri AlonTechnion, Meital ZilbersteinTechnion, Omer LevyUniversity of Washington, USA, Eran YahavTechnionLink to publication DOI Pre-print Media Attached File Attached
|15:43 - 16:05|
Research PapersLink to publication DOI Media Attached
|16:05 - 16:27|
Zachary KincaidPrinceton University, Jason BreckUniversity of Wisconsin - Madison, John CyphertUniversity of Wisconsin - Madison, Thomas RepsUniversity of Wisconsin - Madison and GrammaTech, Inc.Link to publication DOI Media Attached File Attached