Search Results for author: Arun Venkitaraman

Found 16 papers, 1 papers with code

Knowledge-Distilled Graph Neural Networks for Personalized Epileptic Seizure Detection

no code implementations3 Apr 2023 Qinyue Zheng, Arun Venkitaraman, Simona Petravic, Pascal Frossard

We consider two cases (a) when a single student is learnt for all the patients using preselected channels; and (b) when personalized students are learnt for every individual patient, with personalized channel selection using a Gumbelsoftmax approach.

EEG Knowledge Distillation +1

A Meta-GNN approach to personalized seizure detection and classification

no code implementations1 Nov 2022 Abdellah Rahmani, Arun Venkitaraman, Pascal Frossard

In this paper, we propose a personalized seizure detection and classification framework that quickly adapts to a specific patient from limited seizure samples.

Meta-Learning Seizure Detection

Learning Models of Model Predictive Controllers using Gradient Data

no code implementations3 Feb 2021 Rebecka Winqvist, Arun Venkitaraman, Bo Wahlberg

As a proof of concept, we apply this approach to explicit MPC (eMPC), for which the feedback law is a piece-wise affine function of the state, but the number of pieces grows rapidly with the state dimension.

Experimental Design

Task-similarity Aware Meta-learning through Nonparametric Kernel Regression

no code implementations12 Jun 2020 Arun Venkitaraman, Anders Hansson, Bo Wahlberg

Our hypothesis is that the use of tasksimilarity helps meta-learning when the available tasks are limited and may contain outlier/ dissimilar tasks.

Meta-Learning regression

On Training and Evaluation of Neural Network Approaches for Model Predictive Control

no code implementations8 May 2020 Rebecka Winqvist, Arun Venkitaraman, Bo Wahlberg

The contribution of this paper is a framework for training and evaluation of Model Predictive Control (MPC) implemented using constrained neural networks.

Model Predictive Control

Predictive Analysis of COVID-19 Time-series Data from Johns Hopkins University

no code implementations7 May 2020 Alireza M. Javid, Xinyue Liang, Arun Venkitaraman, Saikat Chatterjee

We provide a predictive analysis of the spread of COVID-19, also known as SARS-CoV-2, using the dataset made publicly available online by the Johns Hopkins University.

Time Series Time Series Analysis

High-dimensional Neural Feature Design for Layer-wise Reduction of Training Cost

no code implementations29 Mar 2020 Alireza M. Javid, Arun Venkitaraman, Mikael Skoglund, Saikat Chatterjee

We show that the proposed architecture is norm-preserving and provides an invertible feature vector, and therefore, can be used to reduce the training cost of any other learning method which employs linear projection to estimate the target.

Recursive Prediction of Graph Signals with Incoming Nodes

no code implementations26 Nov 2019 Arun Venkitaraman, Saikat Chatterjee, Bo Wahlberg

Kernel and linear regression have been recently explored in the prediction of graph signals as the output, given arbitrary input signals that are agnostic to the graph.

regression

Learning sparse linear dynamic networks in a hyper-parameter free setting

no code implementations26 Nov 2019 Arun Venkitaraman, Håkan Hjalmarsson, Bo Wahlberg

We address the issue of estimating the topology and dynamics of sparse linear dynamic networks in a hyperparameter-free setting.

Kernel Regression for Graph Signal Prediction in Presence of Sparse Noise

no code implementations6 Nov 2018 Arun Venkitaraman, Pascal Frossard, Saikat Chatterjee

In presence of sparse noise we propose kernel regression for predicting output vectors which are smooth over a given graph.

regression

Gaussian Processes Over Graphs

no code implementations15 Mar 2018 Arun Venkitaraman, Saikat Chatterjee, Peter Händel

We propose Gaussian processes for signals over graphs (GPG) using the apriori knowledge that the target vectors lie over a graph.

Gaussian Processes

Multi-kernel Regression For Graph Signal Processing

no code implementations12 Mar 2018 Arun Venkitaraman, Saikat Chatterjee, Peter Händel

We develop a multi-kernel based regression method for graph signal processing where the target signal is assumed to be smooth over a graph.

regression

Extreme Learning Machine for Graph Signal Processing

no code implementations12 Mar 2018 Arun Venkitaraman, Saikat Chatterjee, Peter Händel

In this article, we improve extreme learning machines for regression tasks using a graph signal processing based regularization.

regression

R3Net: Random Weights, Rectifier Linear Units and Robustness for Artificial Neural Network

no code implementations12 Mar 2018 Arun Venkitaraman, Alireza M. Javid, Saikat Chatterjee

We consider a neural network architecture with randomized features, a sign-splitter, followed by rectified linear units (ReLU).

Learning Sparse Graphs for Prediction and Filtering of Multivariate Data Processes

no code implementations12 Dec 2017 Arun Venkitaraman, Dave Zachariah

We address the problem of prediction of multivariate data process using an underlying graph model.

A Connectedness Constraint for Learning Sparse Graphs

1 code implementation29 Aug 2017 Martin Sundin, Arun Venkitaraman, Magnus Jansson, Saikat Chatterjee

We especially show how the constraint relates to the distributed consensus problem and graph Laplacian learning.

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