Omar Darwish
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View article: The Atacama Cosmology Telescope: DR6 power spectra, likelihoods and ΛCDM parameters
The Atacama Cosmology Telescope: DR6 power spectra, likelihoods and ΛCDM parameters Open
We present power spectra of the cosmic microwave background (CMB) anisotropy in temperature and polarization, measured from the Data Release 6 maps made from Atacama Cosmology Telescope (ACT) data. These cover 19,000 deg 2 of sky in bands …
View article: LinguTimeX a Framework for Multilingual CTC Detection Using Explainable AI and Natural Language Processing
LinguTimeX a Framework for Multilingual CTC Detection Using Explainable AI and Natural Language Processing Open
View article: Density reconstruction from biased tracers: Testing the equivalence principle through consistency relations
Density reconstruction from biased tracers: Testing the equivalence principle through consistency relations Open
Consistency relations of large-scale structure offer a unique and powerful test of the weak equivalence principle (EP) on cosmological scales. If the EP is violated, different tracers will undergo different accelerations in response to a u…
View article: Near Real-Time Dust Aerosol Detection with 3D Convolutional Neural Networks on MODIS Data
Near Real-Time Dust Aerosol Detection with 3D Convolutional Neural Networks on MODIS Data Open
Dust storms harm health and reduce visibility; quick detection from satellites is needed. We present a near real-time system that flags dust at the pixel level using multi-band images from NASA's Terra and Aqua (MODIS). A 3D convolutional …
View article: Leveraging Explainable AI for LLM Text Attribution: Differentiating Human-Written and Multiple LLM-Generated Text
Leveraging Explainable AI for LLM Text Attribution: Differentiating Human-Written and Multiple LLM-Generated Text Open
The development of generative AI Large Language Models (LLMs) raised the alarm regarding the identification of content produced by generative AI vs. humans. In one case, issues arise when students heavily rely on such tools in a manner tha…
View article: Enhanced Detection of Intrusion Detection System in Cloud Networks Using Time-Aware and Deep Learning Techniques
Enhanced Detection of Intrusion Detection System in Cloud Networks Using Time-Aware and Deep Learning Techniques Open
This study introduces an enhanced Intrusion Detection System (IDS) framework for Denial-of-Service (DoS) attacks, utilizing network traffic inter-arrival time (IAT) analysis. By examining the timing between packets and other statistical fe…
View article: Hardware and Software Methods for Secure Obfuscation and Deobfuscation: An In-Depth Analysis
Hardware and Software Methods for Secure Obfuscation and Deobfuscation: An In-Depth Analysis Open
The swift evolution of information technology and growing connectivity in critical applications have elevated cybersecurity, protecting and certifying software and designs against rising cyber threats. For example, software and hardware ha…
View article: Improvement of image quality of diffusion-weighted imaging (DWI) with deep learning reconstruction of the pancreas: comparison with respiratory-gated conventional DWI
Improvement of image quality of diffusion-weighted imaging (DWI) with deep learning reconstruction of the pancreas: comparison with respiratory-gated conventional DWI Open
View article: The Atacama Cosmology Telescope: DR6 Constraints on Extended Cosmological Models
The Atacama Cosmology Telescope: DR6 Constraints on Extended Cosmological Models Open
We use new cosmic microwave background (CMB) primary temperature and polarization anisotropy measurements from the Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) to test foundational assumptions of the standard cosmological model a…
View article: The Atacama Cosmology Telescope: DR6 Power Spectra, Likelihoods and $Λ$CDM Parameters
The Atacama Cosmology Telescope: DR6 Power Spectra, Likelihoods and $Λ$CDM Parameters Open
We present power spectra of the cosmic microwave background (CMB) anisotropy in temperature and polarization, measured from the Data Release 6 maps made from Atacama Cosmology Telescope (ACT) data. These cover 19,000 deg$^2$ of sky in band…
View article: Leveraging Explainable AI for LLM Text Attribution: Differentiating Human-Written and Multiple LLMs-Generated Text
Leveraging Explainable AI for LLM Text Attribution: Differentiating Human-Written and Multiple LLMs-Generated Text Open
The development of Generative AI Large Language Models (LLMs) raised the alarm regarding identifying content produced through generative AI or humans. In one case, issues arise when students heavily rely on such tools in a manner that can …
View article: Detecting AI-Generated Text in Educational Content: Leveraging Machine Learning and Explainable AI for Academic Integrity
Detecting AI-Generated Text in Educational Content: Leveraging Machine Learning and Explainable AI for Academic Integrity Open
This study seeks to enhance academic integrity by providing tools to detect AI-generated content in student work using advanced technologies. The findings promote transparency and accountability, helping educators maintain ethical standard…
View article: Enhancing diffusion-weighted prostate MRI through self-supervised denoising and evaluation
Enhancing diffusion-weighted prostate MRI through self-supervised denoising and evaluation Open
View article: Robust Robot Motion Retargeting: Rig Unification and Application to Diverse Robots
Robust Robot Motion Retargeting: Rig Unification and Application to Diverse Robots Open
Humanoid robots are increasingly being developed for seamless interaction with humans in various domains. However, generating expressive and feasible motions for these robots remains a significant challenge due to their complex kinematic s…
View article: The Atacama Cosmology Telescope: DR6 Gravitational Lensing and SDSS BOSS cross-correlation measurement and constraints on gravity with the $E_G$ statistic
The Atacama Cosmology Telescope: DR6 Gravitational Lensing and SDSS BOSS cross-correlation measurement and constraints on gravity with the $E_G$ statistic Open
We derive new constraints on the $E_G$ statistic as a test of gravity, combining the CMB lensing map estimated from Data Release 6 (DR6) of the Atacama Cosmology Telescope with SDSS BOSS CMASS and LOWZ galaxy data. We develop an analysis p…
View article: LinguTimeX: Explainable AI of Natural Language Detection in Leakage Information with Covert Timing Channels
LinguTimeX: Explainable AI of Natural Language Detection in Leakage Information with Covert Timing Channels Open
CCovert timing channels (CTC) enable surreptitious information leakage through manipulated data transmission timing, posing a severe cybersecurity risk. This research introduces a framework, called LinguTimeX, which utilizes explainable ar…
View article: The Atacama Cosmology Telescope: Mitigating the Impact of Extragalactic Foregrounds for the DR6 Cosmic Microwave Background Lensing Analysis
The Atacama Cosmology Telescope: Mitigating the Impact of Extragalactic Foregrounds for the DR6 Cosmic Microwave Background Lensing Analysis Open
We investigate the impact and mitigation of extragalactic foregrounds for the cosmic microwave background (CMB) lensing power spectrum analysis of Atacama Cosmology Telescope (ACT) data release 6 (DR6) data. Two independent microwave sky s…
View article: BioChainReward: A Secure and Incentivised Blockchain Framework for Biomedical Data Sharing
BioChainReward: A Secure and Incentivised Blockchain Framework for Biomedical Data Sharing Open
In the era of digital healthcare, biomedical data sharing is of paramount importance for the advancement of research and personalised healthcare. However, sharing such data while preserving user privacy and ensuring data security poses sig…
View article: The Atacama Cosmology Telescope: Cosmology from cross-correlations of unWISE galaxies and ACT DR6 CMB lensing
The Atacama Cosmology Telescope: Cosmology from cross-correlations of unWISE galaxies and ACT DR6 CMB lensing Open
We present tomographic measurements of structure growth using cross-correlations of Atacama Cosmology Telescope (ACT) DR6 and Planck CMB lensing maps with the unWISE Blue and Green galaxy samples, which span the redshift ranges $0.2 \lesss…
View article: Probing early structure and model-independent neutrino mass with high-redshift CMB lensing mass maps
Probing early structure and model-independent neutrino mass with high-redshift CMB lensing mass maps Open
CMB lensing maps probe the mass distribution in projection out to high redshifts, but significant sensitivity to low-redshift structure remains. In this paper we discuss a method to remove the low-redshift contributions from CMB lensing ma…
View article: The Atacama Cosmology Telescope: Mitigating the impact of extragalactic foregrounds for the DR6 CMB lensing analysis
The Atacama Cosmology Telescope: Mitigating the impact of extragalactic foregrounds for the DR6 CMB lensing analysis Open
We investigate the impact and mitigation of extragalactic foregrounds for the CMB lensing power spectrum analysis of Atacama Cosmology Telescope (ACT) data release 6 (DR6) data. Two independent microwave sky simulations are used to test a …
View article: A Notional Understanding of the Relationship between Code Readability and Software Complexity
A Notional Understanding of the Relationship between Code Readability and Software Complexity Open
Code readability and software complexity are considered essential components of software quality. They significantly impact software metrics, such as reusability and maintenance. The maintainability process consumes a high percentage of th…
View article: Comparative Analysis Study for Air Quality Prediction in Smart Cities Using Regression Techniques
Comparative Analysis Study for Air Quality Prediction in Smart Cities Using Regression Techniques Open
In smart cities, air pollution has detrimental impacts on human physical health and the quality of living environment. Therefore, correctly predicting air quality plays an important effective action plan to mitigate air pollution and creat…
View article: ICT students' perceptions towards ChatGPT: An experimental reflective lab analysis
ICT students' perceptions towards ChatGPT: An experimental reflective lab analysis Open
This study explores the use of the Generative artificial intelligence (GenAI) tool ChatGPT in higher education. Amidst the potential benefits and the risk of misuse, this research investigates the tool's role as a classroom aid and its imp…
View article: Table of Contents
Table of Contents Open
View article: Information-Centric IoT-Based Smart Farming with Dynamic Data燨ptimization
Information-Centric IoT-Based Smart Farming with Dynamic Data燨ptimization Open
Smart farming has become a strategic approach of sustainable agriculture management and monitoring with the infrastructure to exploit modern technologies, including big data, the cloud, and the Internet of Things (IoT). Many researchers tr…
View article: Enhanced convolutional neural network for non-small cell lung cancer classification
Enhanced convolutional neural network for non-small cell lung cancer classification Open
Lung cancer is a common type of cancer that causes death if not detected early enough. Doctors use computed tomography (CT) images to diagnose lung cancer. The accuracy of the diagnosis relies highly on the doctor's expertise. Recently, cl…
View article: Survey on authentication and security protocols and schemes over 5G networks
Survey on authentication and security protocols and schemes over 5G networks Open
The emergence of fifth generation networks opens the doors for Internet of Things environment to spread widely. The number of connected devices to fifth generation networks is expected to increase to more than 1.7 billion users by 2025. Ea…
View article: A survey of uncover misleading and cyberbullying on social media for public health
A survey of uncover misleading and cyberbullying on social media for public health Open
View article: Probing early structure and model-independent neutrino mass with high-redshift CMB lensing mass maps
Probing early structure and model-independent neutrino mass with high-redshift CMB lensing mass maps Open
CMB lensing maps probe the mass distribution in projection out to high redshifts, but significant sensitivity to low-redshift structure remains. In this paper we discuss a method to remove the low-redshift contributions from CMB lensing ma…