Publications

You can also find my articles on my Google Scholar profile.

Conference Papers

RODEO: Robust Outlier Detection via Exposing Adaptive Out-of-Distribution Samples

ICML, 2024

In this work, we designed a novel method to detect outliers in adversarial settings. We were able to achieve state-of-the-art results on various tasks of outlier detection by generating adaptive outliers and expose them while training the anomaly detector adversarially.

Authors: Hossein Mirzaei, Mohammad Jafari, Hamid Reza Dehbashi, Ali Ansari, Sepehr Ghobadi, Masoud Hadi, Arshia Soltani Moakhar, Mohammad Azizmalayeri, Mahdieh Soleymani Baghshah, Mohammad Hossein Rohban

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Scanning Trojaned Models Using Out-of-Distribution Samples

NeurIPS, 2024

In this work, we designed a trojan scanning method which is robust in various aspects, including trojan attack type, label mapping, and adversarial robustness of the classifier. We further propose a version of our work which requires no access samples from the model’s training distribution.

Authors: Hossein Mirzaei, Ali Ansari*, Bahar Dibaei Nia*, Mojtaba Nafez, Moein Madadi, Sepehr Rezaee, Zeinab Sadat Taghavi, Arad Maleki, Kian Shamsaie, Mahdi Hajialilue, Jafar Habibi, Mohammad Sabokrou, Mohammad Hossein Rohban

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A Contrastive Teacher-Student Framework for Novelty Detection under Style Shifts

Submitted to ICLR, 2025

In this work, we designed a novelty detection method which is robust to style shifts in the data distribution. By distinguishing between core features and style features and using a teacher-student scheme, we were able to achieve state-of-the-art results on various dataset pairs.

Authors: Hossein Mirzaei, Mojtaba Nafez, Moein Madadi, Arad Maleki, Mahdi Hajialilue, Zeinab Sadat Taghavi, Sepehr Rezaee, Ali Ansari, Bahar Dibaei Nia, Kian Shamsaie, Mohammadreza Salehi, Jafar Habibi, Mackenzie W Mathis, Mahdieh Soleymani Baghshah, Mohammad Sabokrou, Mohammad Hossein Rohban