Search Results for author: Shahrokh Valaee

Found 21 papers, 7 papers with code

Hypertension Detection From High-Dimensional Representation of Photoplethysmogram Signals

1 code implementation31 Jul 2023 Navid Hasanzadeh, Shahrokh Valaee, Hojjat Salehinejad

Although some studies suggest a relationship between blood pressure and certain vital signals, such as Photoplethysmogram (PPG), reliable generalization of the proposed blood pressure estimation methods is not yet guaranteed.

Hypertension detection Time Series

Zero Access Points 3D Cooperative Positioning via RIS and Sidelink Communications

no code implementations15 May 2023 Mustafa Ammous, Hui Chen, Henk Wymeersch, Shahrokh Valaee

Reconfigurable intelligent surfaces (RISs) are expected to be a main component of future 6G networks, due to their capability to create a controllable wireless environment, and achieve extended coverage and improved localization accuracy.

RISs and Sidelink Communications in Smart Cities: The Key to Seamless Localization and Sensing

no code implementations9 Jan 2023 Hui Chen, Hyowon Kim, Mustafa Ammous, Gonzalo Seco-Granados, George C. Alexandropoulos, Shahrokh Valaee, Henk Wymeersch

A smart city involves, among other elements, intelligent transportation, crowd monitoring, and digital twins, each of which requires information exchange via wireless communication links and localization of connected devices and passive objects (including people).

S-Rocket: Selective Random Convolution Kernels for Time Series Classification

1 code implementation7 Mar 2022 Hojjat Salehinejad, Yang Wang, Yuanhao Yu, Tang Jin, Shahrokh Valaee

A population-based optimization algorithm evolves the population in order to find a best state vector which minimizes the number of active kernels while maximizing the accuracy of the classifier.

Combinatorial Optimization regression +3

CAIM: Cooperative Angle of Arrival Estimation using the Ising Method

no code implementations27 Apr 2021 Shiva Akbari, Shahrokh Valaee

This paper proposes a cooperative angle-of-arrival(AoA) estimation, taking advantage of co-processing channel state information (CSI) from a group of access points that receive signals of the same source.

Compressive Sensing

A Framework For Pruning Deep Neural Networks Using Energy-Based Models

no code implementations25 Feb 2021 Hojjat Salehinejad, Shahrokh Valaee

A typical deep neural network (DNN) has a large number of trainable parameters.

Pruning of Convolutional Neural Networks Using Ising Energy Model

1 code implementation10 Feb 2021 Hojjat Salehinejad, Shahrokh Valaee

Pruning is one of the major methods to compress deep neural networks.

A Framework for Neural Network Pruning Using Gibbs Distributions

1 code implementation8 Jun 2020 Alex Labach, Shahrokh Valaee

It can be used for structured or unstructured pruning and we propose a number of specific methods for each.

Network Pruning

EDropout: Energy-Based Dropout and Pruning of Deep Neural Networks

2 code implementations7 Jun 2020 Hojjat Salehinejad, Shahrokh Valaee

The energy-based model stochastically evolves the population to find states with lower energy loss.

Regularizing Neural Networks by Stochastically Training Layer Ensembles

1 code implementation21 Nov 2019 Alex Labach, Shahrokh Valaee

Dropout and similar stochastic neural network regularization methods are often interpreted as implicitly averaging over a large ensemble of models.

General Classification Image Classification

Survey of Dropout Methods for Deep Neural Networks

no code implementations25 Apr 2019 Alex Labach, Hojjat Salehinejad, Shahrokh Valaee

Dropout methods are a family of stochastic techniques used in neural network training or inference that have generated significant research interest and are widely used in practice.

Model Compression

Ising-Dropout: A Regularization Method for Training and Compression of Deep Neural Networks

no code implementations7 Feb 2019 Hojjat Salehinejad, Shahrokh Valaee

In this paper, we propose an adaptive technique to wisely drop the visible and hidden units in a deep neural network using Ising energy of the network.

General Classification

Recent Advances in Recurrent Neural Networks

no code implementations29 Dec 2017 Hojjat Salehinejad, Sharan Sankar, Joseph Barfett, Errol Colak, Shahrokh Valaee

Recurrent neural networks (RNNs) are capable of learning features and long term dependencies from sequential and time-series data.

Time Series Time Series Analysis

A Survey of Human Activity Recognition Using WiFi CSI

1 code implementation23 Aug 2017 Siamak Yousefi, Hirokazu Narui, Sankalp Dayal, Stefano Ermon, Shahrokh Valaee

This is done by extracting features from CSI data streams and using machine learning techniques to build models and classifiers.

BIG-bench Machine Learning Human Activity Recognition

Image Augmentation using Radial Transform for Training Deep Neural Networks

no code implementations14 Aug 2017 Hojjat Salehinejad, Shahrokh Valaee, Timothy Dowdell, Joseph Barfett

We propose a sampling method based on the radial transform in a polar coordinate system for image augmentation to facilitate the training of deep learning models from limited source data.

Image Augmentation

OCRAPOSE II: An OCR-based indoor positioning system using mobile phone images

no code implementations19 Apr 2017 Hamed Sadeghi, Shahrokh Valaee, Shahram Shirani

Then, it finds depth and angle-of-view of the query using the information provided by the OCR engine in order to refine the location estimate.

Depth Estimation Optical Character Recognition +1

Joint Indoor Localization and Radio Map Construction with Limited Deployment Load

no code implementations12 Oct 2013 Sameh Sorour, Yves Lostanlen, Shahrokh Valaee

In this paper, we aim to design an indoor localization scheme that can be directly employed without building a full fingerprinted radio map of the indoor environment.

Indoor Localization

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