Search Results for author: Andrei Liviu Nicolicioiu

Found 7 papers, 3 papers with code

Stylist: Style-Driven Feature Ranking for Robust Novelty Detection

1 code implementation5 Oct 2023 Stefan Smeu, Elena Burceanu, Emanuela Haller, Andrei Liviu Nicolicioiu

Similar to works in out-of-distribution generalization, we propose to use the formalization of separating into semantic or content changes, that are relevant to our task, and style changes, that are irrelevant.

Domain Generalization Novelty Detection +1

Environment-biased Feature Ranking for Novelty Detection Robustness

no code implementations21 Sep 2023 Stefan Smeu, Elena Burceanu, Emanuela Haller, Andrei Liviu Nicolicioiu

Thus, we propose a method that starts with a pretrained embedding and a multi-env setup and manages to rank the features based on their environment-focus.

Novelty Detection

Learning Diverse Features in Vision Transformers for Improved Generalization

1 code implementation30 Aug 2023 Armand Mihai Nicolicioiu, Andrei Liviu Nicolicioiu, Bogdan Alexe, Damien Teney

We observe improved out-of-distribution performance on diagnostic benchmarks (MNIST-CIFAR, Waterbirds) as a consequence of the enhanced diversity of features and the pruning of undesirable heads.

Spuriosity Didn't Kill the Classifier: Using Invariant Predictions to Harness Spurious Features

no code implementations19 Jul 2023 Cian Eastwood, Shashank Singh, Andrei Liviu Nicolicioiu, Marin Vlastelica, Julius von Kügelgen, Bernhard Schölkopf

To avoid failures on out-of-distribution data, recent works have sought to extract features that have an invariant or stable relationship with the label across domains, discarding "spurious" or unstable features whose relationship with the label changes across domains.

Env-Aware Anomaly Detection: Ignore Style Changes, Stay True to Content!

no code implementations6 Oct 2022 Stefan Smeu, Elena Burceanu, Andrei Liviu Nicolicioiu, Emanuela Haller

We introduce a formalization and benchmark for the unsupervised anomaly detection task in the distribution-shift scenario.

Unsupervised Anomaly Detection

Mining for meaning: from vision to language through multiple networks consensus

no code implementations5 Jun 2018 Iulia Duta, Andrei Liviu Nicolicioiu, Simion-Vlad Bogolin, Marius Leordeanu

Here we propose an approach to describe videos in natural language by reaching a consensus among multiple encoder-decoder networks.

Cannot find the paper you are looking for? You can Submit a new open access paper.