Search Results for author: Vishnu Raj

Found 9 papers, 2 papers with code

Incorporating functional summary information in Bayesian neural networks using a Dirichlet process likelihood approach

1 code implementation4 Jul 2022 Vishnu Raj, Tianyu Cui, Markus Heinonen, Pekka Marttinen

We present a simple approach to incorporate prior knowledge in BNNs based on external summary information about the predicted classification probabilities for a given dataset.

Variational Inference

Understanding Learning Dynamics of Binary Neural Networks via Information Bottleneck

no code implementations13 Jun 2020 Vishnu Raj, Nancy Nayak, Sheetal Kalyani

Compact neural networks are essential for affordable and power efficient deep learning solutions.

Deep Reinforcement Learning based Blind mmWave MIMO Beam Alignment

no code implementations25 Jan 2020 Vishnu Raj, Nancy Nayak, Sheetal Kalyani

Directional beamforming is a crucial component for realizing robust wireless communication systems using millimeter wave (mmWave) technology.

Policy Gradient Methods reinforcement-learning +1

Beyond 5G: Leveraging Cell Free TDD Massive MIMO using Cascaded Deep learning

no code implementations13 Oct 2019 Navaneet Athreya, Vishnu Raj, Sheetal Kalyani

This paper deals with the calibration of Time Division Duplexing (TDD) reciprocity in an Orthogonal Frequency Division Multiplexing (OFDM) based Cell Free Massive MIMO system where the responses of the (Radio Frequency) RF chains render the end to end channel non-reciprocal, even though the physical wireless channel is reciprocal.

Design of Communication Systems using Deep Learning: A Variational Inference Perspective

1 code implementation18 Apr 2019 Vishnu Raj, Sheetal Kalyani

However, in communication systems, the receiver has to work with noise corrupted versions of transmit symbols.

Variational Inference

A Centralized Multi-stage Non-parametric Learning Algorithm for Opportunistic Spectrum Access

no code implementations30 Apr 2018 Thulasi Tholeti, Vishnu Raj, Sheetal Kalyani

Owing to the ever-increasing demand in wireless spectrum, Cognitive Radio (CR) was introduced as a technique to attain high spectral efficiency.

An aggregating strategy for shifting experts in discrete sequence prediction

no code implementations5 Aug 2017 Vishnu Raj, Sheetal Kalyani

We study how we can adapt a predictor to a non-stationary environment with advises from multiple experts.

Spectrum Access In Cognitive Radio Using A Two Stage Reinforcement Learning Approach

no code implementations31 Jul 2017 Vishnu Raj, Irene Dias, Thulasi Tholeti, Sheetal Kalyani

Here, we propose an algorithm to not only select a channel for data transmission but also to predict how long the channel will remain unoccupied so that the time spent on channel sensing can be minimized.

reinforcement-learning Reinforcement Learning (RL)

Taming Non-stationary Bandits: A Bayesian Approach

no code implementations31 Jul 2017 Vishnu Raj, Sheetal Kalyani

We consider the multi armed bandit problem in non-stationary environments.

Thompson Sampling

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