1 code implementation • 29 Nov 2023 • Jay C. Rothenberger, Dimitrios I. Diochnos
We show that in the common case when independent views are not available we can construct such views inexpensively using pre-trained models.
Fine-Grained Image Classification Semi-Supervised Image Classification
no code implementations • 13 Jun 2019 • Dimitrios I. Diochnos, Saeed Mahloujifar, Mohammad Mahmoody
In this work, we initiate a formal study of probably approximately correct (PAC) learning under evasion attacks, where the adversary's goal is to \emph{misclassify} the adversarially perturbed sample point $\widetilde{x}$, i. e., $h(\widetilde{x})\neq c(\widetilde{x})$, where $c$ is the ground truth concept and $h$ is the learned hypothesis.
no code implementations • NeurIPS 2018 • Dimitrios I. Diochnos, Saeed Mahloujifar, Mohammad Mahmoody
We study both "inherent" bounds that apply to any problem and any classifier for such a problem as well as bounds that apply to specific problems and specific hypothesis classes.
no code implementations • 9 Sep 2018 • Saeed Mahloujifar, Dimitrios I. Diochnos, Mohammad Mahmoody
We show that if the metric probability space of the test instance is concentrated, any classifier with some initial constant error is inherently vulnerable to adversarial perturbations.
no code implementations • 10 Nov 2017 • Saeed Mahloujifar, Dimitrios I. Diochnos, Mohammad Mahmoody
They obtained $p$-tampering attacks that increase the error probability in the so called targeted poisoning model in which the adversary's goal is to increase the loss of the trained hypothesis over a particular test example.
no code implementations • 22 Apr 2013 • Dimitrios I. Diochnos
Part III investigates non-overlapping, as well as overlapping communities that are found in ConceptNet 4.