Search Results for author: Oktay Karakuş

Found 18 papers, 5 papers with code

Bayes-xG: Player and Position Correction on Expected Goals (xG) using Bayesian Hierarchical Approach

no code implementations22 Nov 2023 Alexander Scholtes, Oktay Karakuş

The findings reveal positional effects in a basic model that includes only distance to goal and shot angle as predictors, highlighting that strikers and attacking midfielders exhibit a higher likelihood of scoring.

Position

DUBLINE: A Deep Unfolding Network for B-line Detection in Lung Ultrasound Images

no code implementations11 Nov 2023 Tianqi Yang, Nantheera Anantrasirichai, Oktay Karakuş, Marco Allinovi, Hatice Ceylan Koydemir, Alin Achim

In the context of lung ultrasound, the detection of B-lines, which are indicative of interstitial lung disease and pulmonary edema, plays a pivotal role in clinical diagnosis.

Line Detection

Robust Kalman Filters Based on the Sub-Gaussian $α$-stable Distribution

1 code implementation13 May 2023 Pengcheng Hao, Oktay Karakuş, Alin Achim

Motivated by filtering tasks under a linear system with non-Gaussian heavy-tailed noise, various robust Kalman filters (RKFs) based on different heavy-tailed distributions have been proposed.

A Machine Learning Approach for Player and Position Adjusted Expected Goals in Football (Soccer)

no code implementations19 Jan 2023 James H. Hewitt, Oktay Karakuş

The development of the model is used to adjust and gain more realistic values of expected goals than the general models show.

Binary Classification Position

Sentiment Analysis for Measuring Hope and Fear from Reddit Posts During the 2022 Russo-Ukrainian Conflict

no code implementations19 Jan 2023 Alessio Guerra, Oktay Karakuş

This paper proposes a novel lexicon-based unsupervised sentimental analysis method to measure the $``\textit{hope}"$ and $``\textit{fear}"$ for the 2022 Ukrainian-Russian Conflict.

Sentiment Analysis

A Semi-supervised Learning Approach for B-line Detection in Lung Ultrasound Images

no code implementations25 Nov 2022 Tianqi Yang, Nantheera Anantrasirichai, Oktay Karakuş, Marco Allinovi, Alin Achim

Studies have proved that the number of B-lines in lung ultrasound images has a strong statistical link to the amount of extravascular lung water, which is significant for hemodialysis treatment.

Contrastive Learning Line Detection

Predicting air quality via multimodal AI and satellite imagery

no code implementations1 Nov 2022 Andrew Rowley, Oktay Karakuş

Three pollutants, NO$_2$, O$_3$, and PM$_{10}$, are predicted successfully by AQNet and the network was found to be useful compared to a model only using satellite imagery.

On Advances, Challenges and Potentials of Remote Sensing Image Analysis in Marine Debris and Suspected Plastics Monitoring

no code implementations12 Oct 2022 Oktay Karakuş

Marine plastic pollution is an emerging environmental problem since it pollutes the ocean, air and food whilst endangering the ocean wildlife via the ingestion and entanglements.

Earth Observation

Current Advances in Computational Lung Ultrasound Imaging: A Review

no code implementations21 Mar 2021 Tianqi Yang, Oktay Karakuş, Nantheera Anantrasirichai, Alin Achim

In the field of biomedical imaging, ultrasonography has become increasingly widespread, and an important auxiliary diagnostic tool with unique advantages, such as being non-ionising and often portable.

Exploiting the Dual-Tree Complex Wavelet Transform for Ship Wake Detection in SAR Imagery

no code implementations11 Dec 2020 Wanli Ma, Alin Achim, Oktay Karakuş

In this paper, we analyse synthetic aperture radar (SAR) images of the sea surface using an inverse problem formulation whereby Radon domain information is enhanced in order to accurately detect ship wakes.

A Simulation Study to Evaluate the Performance of the Cauchy Proximal Operator in Despeckling SAR Images of the Sea Surface

no code implementations11 Dec 2020 Oktay Karakuş, Igor Rizaev, Alin Achim

The analysis of ocean surface is widely performed using synthetic aperture radar (SAR) imagery as it yields information for wide areas under challenging weather conditions, during day or night, etc.

Representation Learning via Cauchy Convolutional Sparse Coding

no code implementations8 Aug 2020 Perla Mayo, Oktay Karakuş, Robin Holmes, Alin Achim

In representation learning, Convolutional Sparse Coding (CSC) enables unsupervised learning of features by jointly optimising both an \(\ell_2\)-norm fidelity term and a sparsity enforcing penalty.

Representation Learning

A Generalized Gaussian Extension to the Rician Distribution for SAR Image Modeling

1 code implementation15 Jun 2020 Oktay Karakuş, Ercan E. Kuruoglu, Alin Achim

In this paper, we present a novel statistical model, $\textit{the generalized-Gaussian-Rician}$ (GG-Rician) distribution, for the characterization of synthetic aperture radar (SAR) images.

Detection of Line Artefacts in Lung Ultrasound Images of COVID-19 Patients via Non-Convex Regularization

1 code implementation6 May 2020 Oktay Karakuş, Nantheera Anantrasirichai, Amazigh Aguersif, Stein Silva, Adrian Basarab, Alin Achim

In this paper, we present a novel method for line artefacts quantification in lung ultrasound (LUS) images of COVID-19 patients.

On Solving SAR Imaging Inverse Problems Using Non-Convex Regularization with a Cauchy-based Penalty

1 code implementation1 May 2020 Oktay Karakuş, Alin Achim

We show that the proposed Cauchy-based penalty function leads to better image reconstruction results when compared to the reference penalty functions for all SAR imaging inverse problems in this paper.

Image Reconstruction Super-Resolution

Detection of Ship Wakes in SAR Imagery Using Cauchy Regularisation

no code implementations12 Feb 2020 Tianqi Yang, Oktay Karakuş, Alin Achim

A Bayesian method, the Moreau-Yoshida unadjusted Langevin algorithm (MYULA), which is computationally efficient and robust is used to estimate the image in the transform domain by minimizing the negative log-posterior distribution.

Ship Wake Detection in SAR Images via Sparse Regularization

1 code implementation5 Apr 2019 Oktay Karakuş, Igor Rizaev, Alin Achim

We show that the GMC achieves the best results and we subsequently study the merits of the corresponding method in comparison to two state-of-the-art approaches for ship wake detection.

Beyond trans-dimensional RJMCMC with a case study in impulsive data modeling

no code implementations9 Nov 2017 Oktay Karakuş, Ercan E. Kuruoğlu, Mustafa A. Altınkaya

This provides flexibility in using different types of candidate classes in the combined model space such as spaces of linear and nonlinear models or of various distribution families.

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