Search Results for author: Prudhvi Gurram

Found 9 papers, 2 papers with code

Decentralized Langevin Dynamics for Bayesian Learning

no code implementations NeurIPS 2020 Anjaly Parayil, He Bai, Jemin George, Prudhvi Gurram

Motivated by decentralized approaches to machine learning, we propose a collaborative Bayesian learning algorithm taking the form of decentralized Langevin dynamics in a non-convex setting.

BIG-bench Machine Learning

A Decentralized Approach to Bayesian Learning

1 code implementation14 Jul 2020 Anjaly Parayil, He Bai, Jemin George, Prudhvi Gurram

Motivated by decentralized approaches to machine learning, we propose a collaborative Bayesian learning algorithm taking the form of decentralized Langevin dynamics in a non-convex setting.

BIG-bench Machine Learning

Explaining Motion Relevance for Activity Recognition in Video Deep Learning Models

no code implementations31 Mar 2020 Liam Hiley, Alun Preece, Yulia Hicks, Supriyo Chakraborty, Prudhvi Gurram, Richard Tomsett

Our results show that the selective relevance method can not only provide insight on the role played by motion in the model's decision -- in effect, revealing and quantifying the model's spatial bias -- but the method also simplifies the resulting explanations for human consumption.

Activity Recognition

Sanity Checks for Saliency Metrics

no code implementations29 Nov 2019 Richard Tomsett, Dan Harborne, Supriyo Chakraborty, Prudhvi Gurram, Alun Preece

Despite a proliferation of such methods, little effort has been made to quantify how good these saliency maps are at capturing the true relevance of the pixels to the classifier output (i. e. their "fidelity").

Wasserstein Distance Based Domain Adaptation for Object Detection

no code implementations18 Sep 2019 Pengcheng Xu, Prudhvi Gurram, Gene Whipps, Rama Chellappa

Prior approaches utilize adversarial training based on cross entropy between the source and target domain distributions to learn a shared feature mapping that minimizes the domain gap.

Object object-detection +2

Distributed Deep Learning with Event-Triggered Communication

no code implementations8 Sep 2019 Jemin George, Prudhvi Gurram

We develop a Distributed Event-Triggered Stochastic GRAdient Descent (DETSGRAD) algorithm for solving non-convex optimization problems typically encountered in distributed deep learning.

Distributed Stochastic Gradient Method for Non-Convex Problems with Applications in Supervised Learning

1 code implementation19 Aug 2019 Jemin George, Tao Yang, He Bai, Prudhvi Gurram

Numerical results also show that the proposed distributed algorithm allows the individual agents to recognize the digits even though the training data corresponding to all the digits is not locally available to each agent.

Optimization and Control Systems and Control Systems and Control

Human Action Attribute Learning From Video Data Using Low-Rank Representations

no code implementations23 Dec 2016 Tong Wu, Prudhvi Gurram, Raghuveer M. Rao, Waheed U. Bajwa

Representation of human actions as a sequence of human body movements or action attributes enables the development of models for human activity recognition and summarization.

Action Recognition Attribute +3

Optimal Sparse Kernel Learning for Hyperspectral Anomaly Detection

no code implementations8 Jun 2015 Zhimin Peng, Prudhvi Gurram, Heesung Kwon, Wotao Yin

In this paper, a novel framework of sparse kernel learning for Support Vector Data Description (SVDD) based anomaly detection is presented.

Anomaly Detection feature selection

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