Search Results for author: Aleksandr Petiushko

Found 17 papers, 11 papers with code

Smoothed Embeddings for Certified Few-Shot Learning

1 code implementation2 Feb 2022 Mikhail Pautov, Olesya Kuznetsova, Nurislam Tursynbek, Aleksandr Petiushko, Ivan Oseledets

In this work, we extend randomized smoothing to few-shot learning models that map inputs to normalized embeddings.

Adversarial Robustness Few-Shot Learning

Many Heads but One Brain: Fusion Brain -- a Competition and a Single Multimodal Multitask Architecture

1 code implementation22 Nov 2021 Daria Bakshandaeva, Denis Dimitrov, Vladimir Arkhipkin, Alex Shonenkov, Mark Potanin, Denis Karachev, Andrey Kuznetsov, Anton Voronov, Vera Davydova, Elena Tutubalina, Aleksandr Petiushko

Supporting the current trend in the AI community, we present the AI Journey 2021 Challenge called Fusion Brain, the first competition which is targeted to make the universal architecture which could process different modalities (in this case, images, texts, and code) and solve multiple tasks for vision and language.

Handwritten Text Recognition object-detection +4

CC-Cert: A Probabilistic Approach to Certify General Robustness of Neural Networks

1 code implementation22 Sep 2021 Mikhail Pautov, Nurislam Tursynbek, Marina Munkhoeva, Nikita Muravev, Aleksandr Petiushko, Ivan Oseledets

In safety-critical machine learning applications, it is crucial to defend models against adversarial attacks -- small modifications of the input that change the predictions.

Adversarial Robustness

Certified Robustness via Randomized Smoothing over Multiplicative Parameters of Input Transformations

no code implementations28 Jun 2021 Nikita Muravev, Aleksandr Petiushko

Currently the most popular method of providing robustness certificates is randomized smoothing where an input is smoothed via some probability distribution.

Darker than Black-Box: Face Reconstruction from Similarity Queries

1 code implementation27 Jun 2021 Anton Razzhigaev, Klim Kireev, Igor Udovichenko, Aleksandr Petiushko

Several methods for inversion of face recognition models were recently presented, attempting to reconstruct a face from deep templates.

Face Recognition Face Reconstruction

MDMMT: Multidomain Multimodal Transformer for Video Retrieval

3 code implementations19 Mar 2021 Maksim Dzabraev, Maksim Kalashnikov, Stepan Komkov, Aleksandr Petiushko

We present a new state-of-the-art on the text to video retrieval task on MSRVTT and LSMDC benchmarks where our model outperforms all previous solutions by a large margin.

Ranked #25 on Video Retrieval on LSMDC (using extra training data)

Retrieval Text to Video Retrieval +1

Robustness Threats of Differential Privacy

no code implementations14 Dec 2020 Nurislam Tursynbek, Aleksandr Petiushko, Ivan Oseledets

Differential privacy (DP) is a gold-standard concept of measuring and guaranteeing privacy in data analysis.

Mutual Modality Learning for Video Action Classification

1 code implementation4 Nov 2020 Stepan Komkov, Maksim Dzabraev, Aleksandr Petiushko

In this paper, we explore the various methods to embed the ensemble power into a single model.

Ranked #47 on Action Recognition on Something-Something V2 (using extra training data)

Action Classification Action Recognition +3

Black-Box Face Recovery from Identity Features

1 code implementation27 Jul 2020 Anton Razzhigaev, Klim Kireev, Edgar Kaziakhmedov, Nurislam Tursynbek, Aleksandr Petiushko

In this work, we present a novel algorithm based on an it-erative sampling of random Gaussian blobs for black-box face recovery, given only an output feature vector of deep face recognition systems.

Face Recognition

Geometry-Inspired Top-k Adversarial Perturbations

no code implementations28 Jun 2020 Nurislam Tursynbek, Aleksandr Petiushko, Ivan Oseledets

The brittleness of deep image classifiers to small adversarial input perturbations has been extensively studied in the last several years.

On adversarial patches: real-world attack on ArcFace-100 face recognition system

no code implementations15 Oct 2019 Mikhail Pautov, Grigorii Melnikov, Edgar Kaziakhmedov, Klim Kireev, Aleksandr Petiushko

We examine security of one of the best public face recognition systems, LResNet100E-IR with ArcFace loss, and propose a simple method to attack it in the physical world.

Attribute Face Recognition

AdvHat: Real-world adversarial attack on ArcFace Face ID system

4 code implementations23 Aug 2019 Stepan Komkov, Aleksandr Petiushko

In this paper we propose a novel easily reproducible technique to attack the best public Face ID system ArcFace in different shooting conditions.

Real-World Adversarial Attack

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