Search Results for author: Jurijs Nazarovs

Found 8 papers, 1 papers with code

Variational Sampling of Temporal Trajectories

no code implementations18 Mar 2024 Jurijs Nazarovs, Zhichun Huang, Xingjian Zhen, Sourav Pal, Rudrasis Chakraborty, Vikas Singh

In this work, we introduce a mechanism to learn the distribution of trajectories by parameterizing the transition function $f$ explicitly as an element in a function space.

Out-of-Distribution Detection

Using Intermediate Forward Iterates for Intermediate Generator Optimization

no code implementations5 Feb 2023 Harsh Mishra, Jurijs Nazarovs, Manmohan Dogra, Sathya N. Ravi

In score-based models, a generative task is formulated using a parametric model (such as a neural network) to directly learn the gradient of such high dimensional distributions, instead of the density functions themselves, as is done traditionally.

Denoising

Radial Spike and Slab Bayesian Neural Networks for Sparse Data in Ransomware Attacks

no code implementations29 May 2022 Jurijs Nazarovs, Jack W. Stokes, Melissa Turcotte, Justin Carroll, Itai Grady

While traditional deep learning models have been able to achieve state-of-the-art results in a wide variety of domains, Bayesian Neural Networks, which are a class of probabilistic models, are better suited to the issues of the ransomware data.

Variational Inference

Image2Gif: Generating Continuous Realistic Animations with Warping NODEs

1 code implementation9 May 2022 Jurijs Nazarovs, Zhichun Huang

Generating smooth animations from a limited number of sequential observations has a number of applications in vision.

Generative Adversarial Network Video Frame Interpolation

Graph Reparameterizations for Enabling 1000+ Monte Carlo Iterations in Bayesian Deep Neural Networks

no code implementations19 Feb 2022 Jurijs Nazarovs, Ronak R. Mehta, Vishnu Suresh Lokhande, Vikas Singh

This is directly related to the structure of the computation graph, which can grow linearly as a function of the number of MC samples needed.

Mixed Effects Neural ODE: A Variational Approximation for Analyzing the Dynamics of Panel Data

no code implementations18 Feb 2022 Jurijs Nazarovs, Rudrasis Chakraborty, Songwong Tasneeyapant, Sathya N. Ravi, Vikas Singh

Panel data involving longitudinal measurements of the same set of participants taken over multiple time points is common in studies to understand childhood development and disease modeling.

Ordinal-Quadruplet: Retrieval of Missing Classes in Ordinal Time Series

no code implementations24 Jan 2022 Jurijs Nazarovs, Cristian Lumezanu, Qianying Ren, Yuncong Chen, Takehiko Mizoguchi, Dongjin Song, Haifeng Chen

In this paper, we propose an ordered time series classification framework that is robust against missing classes in the training data, i. e., during testing we can prescribe classes that are missing during training.

Missing Labels Retrieval +3

Understanding Uncertainty Maps in Vision With Statistical Testing

no code implementations CVPR 2022 Jurijs Nazarovs, Zhichun Huang, Songwong Tasneeyapant, Rudrasis Chakraborty, Vikas Singh

Quantitative descriptions of confidence intervals and uncertainties of the predictions of a model are needed in many applications in vision and machine learning.

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