Accès ouvert
2026
article
OpenAlex
Sarah M. Alhammad, Yasser Fouad, Amira A. Mahmoud, Ahmed M. Osman et autres
Abstract Accurate house price prediction is essential for real estate valuation, investment planning, and intelligent property decision-support systems. This study proposes an optimized hybrid deep learning framework that integrates a Gated Recurrent Unit and Multilayer Perceptron model with the Binary Whale Optimization …
sa, Égypte
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Accès ouvert
2026
article
OpenAlex
Amira A. Mahmoud, Sarah M. Alhammad, Yasser Fouad, Ahmed M. Osman et autres
Air quality prediction is an important environmental task that supports pollution monitoring, public health protection, and sustainable urban decision-making. This study proposes a hybrid BiGRU-MLP prediction framework enhanced using Binary Ant Colony Optimization (BACO) for feature selection and the Firefly Algorithm (FA) …
Égypte, sa
(code pays fourni par la source)
Accès ouvert
2025
article
OpenAlex
Essam H.Mohamed, Amira A. Mahmoud, Mohsen M. Saleh
This present study deals with the limestone used in Kosa Basha Fort, Abu Qir, Alexandria.The deteriorated limestone specimens were subjected to several examinations, analyses, and tests, including Polarized Light Microscope (PLM), Scanning Electron Microscope (SEM), X-ray diffraction analysis (XRD), and physical and …
lk
(code pays fourni par la source)
Accès ouvert
2025
preprint
OpenAlex
Heba M. Emara, Walid El‐Shafai, Naglaa F. Soliman, Abeer D. Algarni et autres
Égypte, sa
(code pays fourni par la source)
2023
article
OpenAlex
Walid El‐Shafai, Amira A. Mahmoud, Anas M. Ali, El‐Sayed M. El‐Rabaie et autres
sa, Égypte
(code pays fourni par la source)
Accès ouvert
2022
article
OpenAlex
Walid El‐Shafai, Amira A. Mahmoud, El‐Sayed M. El‐Rabaie, Taha E. Taha et autres
The segmentation process requires separating the image region into sub-regions of similar properties. Each sub-region has a group of pixels having the same characteristics, such as texture or intensity. This paper suggests an efficient hybrid segmentation approach for different medical image modalities …
Accès ouvert
2022
article
OpenAlex
Walid El‐Shafai, Amira A. Mahmoud, El‐Sayed M. El‐Rabaie, Taha E. Taha et autres
This paper presents a study of the segmentation of medical images. The paper provides a solid introduction to image enhancement along with image segmentation fundamentals. In the first step, the morphological operations are employed to ensure image detail protection and noise-immunity. The …
Accès ouvert
2022
article
OpenAlex
Walid El‐Shafai, Amira A. Mahmoud, Anas M. Ali, El‐Sayed M. El‐Rabaie et autres
In the literature, numerous techniques have been employed to decrease noise in medical image modalities, including X-Ray (XR), Ultrasonic (Us), Computed Tomography (CT), Magnetic Resonance Imaging (MRI), and Positron Emission Tomography (PET). These techniques are organized into two main classes: the Multiple …
Accès ouvert
2021
article
OpenAlex
Walid El‐Shafai, Amira A. Mahmoud, El‐Sayed M. El‐Rabaie, Taha E. Taha et autres
Syndrome differentiation is the core diagnosis method of Traditional Chinese Medicine (TCM). We propose a method that simulates syndrome differentiation through deductive reasoning on a knowledge graph to achieve automated diagnosis in TCM. We analyze the reasoning path patterns from symptom to …
Accès ouvert
2021
article
OpenAlex
Walid El‐Shafai, Amira A. Mahmoud, El‐Sayed M. El‐Rabaie, Taha E. Taha et autres
Coronavirus (COVID-19) infection was initially acknowledged as a global pandemic in Wuhan in China. World Health Organization (WHO) stated that the COVID-19 is an epidemic that causes a 3.4% death rate. Chest X-Ray (CXR) and Computerized Tomography (CT) screening of infected persons …
sa
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Accès ouvert
2021
article
OpenAlex
Amira A. Mahmoud, Walid El‐Shafai, Taha E. Taha, El‐Sayed M. El‐Rabaie et autres
In this paper, a study of the segmentation of medical images is presented. The paper provides a solid introduction to image enhancement along with image segmentation fundamentals. Firstly, the local spatial information of the image is enhanced with morphological operations to ensure …
Égypte
(code pays fourni par la source)
2020
article
OpenAlex
Amira A. Mahmoud, Walid El‐Shafai, Taha E. Taha, El‐Sayed M. El‐Rabaie et autres
Égypte, sa
(code pays fourni par la source)