Search Results for author: Barak Battash

Found 8 papers, 2 papers with code

Anomaly Detection with Variance Stabilized Density Estimation

no code implementations1 Jun 2023 Amit Rozner, Barak Battash, Henry Li, Lior Wolf, Ofir Lindenbaum

Then, we design a variance stabilized density estimation problem for maximizing the likelihood of the observed samples while minimizing the variance of the density around normal samples.

Anomaly Detection Density Estimation

Revisiting the Noise Model of Stochastic Gradient Descent

no code implementations5 Mar 2023 Barak Battash, Ofir Lindenbaum

Following the central limit theorem, SGN was initially modeled as Gaussian, and lately, it has been suggested that stochastic gradient noise is better characterized using $S\alpha S$ L\'evy distribution.

Domain-Generalizable Multiple-Domain Clustering

1 code implementation31 Jan 2023 Amit Rozner, Barak Battash, Lior Wolf, Ofir Lindenbaum

This work generalizes the problem of unsupervised domain generalization to the case in which no labeled samples are available (completely unsupervised).

Clustering Domain Generalization

Mixing between the Cross Entropy and the Expectation Loss Terms

no code implementations12 Sep 2021 Barak Battash, Lior Wolf, Tamir Hazan

The cross entropy loss is widely used due to its effectiveness and solid theoretical grounding.

Feature Whitening via Gradient Transformation for Improved Convergence

no code implementations4 Oct 2020 Shmulik Markovich-Golan, Barak Battash, Amit Bleiweiss

Compared to EVD, complexity is reduced by a factor of the input feature dimension M. We exemplify the proposed algorithms with ResNet-based networks for image classification demonstrated on the CIFAR and Imagenet datasets.

Image Classification

Mimic The Raw Domain: Accelerating Action Recognition in the Compressed Domain

no code implementations19 Nov 2019 Barak Battash, Haim Barad, Hanlin Tang, Amit Bleiweiss

In this paper we are approaching the task in a completely different way; we are looking at the data from the compressed stream as a one unit clip and propose that the residual frames can replace the original RGB frames from the raw domain.

Action Recognition Video Recognition +1

Adaptive and Iteratively Improving Recurrent Lateral Connections

1 code implementation16 Oct 2019 Barak Battash, Lior Wolf

The current leading computer vision models are typically feed forward neural models, in which the output of one computational block is passed to the next one sequentially.

Action Recognition

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