College of Engineering: Recent submissions

Now showing items 2521-2540 of 8871

    • Effects of titanium and carbon nanotubes on nano/micromechanical properties of HA/TNT/CNT nanocomposites 

      Nezhad, Erfan Zal; Qu, Xiang; Musharavati, Farayi; Jaber, Fadi; Appleford, Mark R.; ... more authors ( Elsevier , 2021 , Article)
      In this study, hydroxyapatite/titanium nanotube/carbon nanotube (HA/TNT/CNT) nanocomposites with different CNT contents were fabricated using a combination of hydrothermal and sol–gel methods. The nanocomposite powders ...

    • RELIABLE COVID-19 DETECTION USING CHEST X-RAY IMAGES 

      Degerli, Aysen; Ahishali, Mete; Kiranyaz, Serkan; Chowdhury, Muhammad E. H.; Gabbouj, Moncef ( IEEE Computer Society , 2021 , Conference)
      Coronavirus disease 2019 (COVID-19) has emerged the need for computer-aided diagnosis with automatic, accurate, and fast algorithms. Recent studies have applied Machine Learning algorithms for COVID-19 diagnosis over chest ...

    • A systematic approach to the design and characterization of a smart insole for detecting vertical ground reaction force (vGRF) in gait analysis 

      Tahir, Anas M.; Chowdhury, Muhammad E. H.; Khandakar, Amith; Al-Hamouz, Sara; Abdalla, Merna; ... more authors ( MDPI AG , 2020 , Article)
      Gait analysis is a systematic study of human locomotion, which can be utilized in various applications, such as rehabilitation, clinical diagnostics and sports activities. The various limitations such as cost, non-portability, ...

    • Predicting COVID-19 cases using bidirectional LSTM on multivariate time series 

      Said, Ahmed Ben; Erradi, Abdelkarim; Aly, Hussein Ahmed; Mohamed, Abdelmonem ( Springer Science and Business Media Deutschland GmbH , 2021 , Article)
      To assist policymakers in making adequate decisions to stop the spread of the COVID-19 pandemic, accurate forecasting of the disease propagation is of paramount importance. This paper presents a deep learning approach to ...

    • Towards model-based management of database fragmentation 

      Ali, Asim; Jia, Rui; Erradi, Abdelkarim; Abdelwahed, Sherif; Hadjidj, Rachid ( USENIX Association , 2013 , Conference)
      The performance of a database can significantly deteriorate due to the fragmentation of data/index files. Manual database defragmentation and performance optimization remain time consuming and even infeasible as it requires ...

    • Cyber LOPA: An Integrated Approach for the Design of Dependable and Secure Cyber-Physical Systems 

      Tantawy, Ashraf; Abdelwahed, Sherif; Erradi, Abdelkarim ( Institute of Electrical and Electronics Engineers Inc. , 2022 , Article)
      Safety risk assessment is an essential process to ensure a dependable cyber-physical system (CPS) design. Traditional risk assessment considers only physical failures. For modern CPSs, failures caused by cyber attacks are ...

    • Spatiotemporal Tensor Completion for Improved Urban Traffic Imputation 

      Ben Said, Ahmed; Erradi, Abdelkarim ( Institute of Electrical and Electronics Engineers Inc. , 2022 , Article)
      Effective management of urban traffic is important for any smart city initiative. Therefore, the quality of the sensory traffic data is of paramount importance. However, like any sensory data, urban traffic data are prone ...

    • Software interfaces: On the impact of interface design anomalies 

      Abdeen, Hani; Shata, Osama; Erradi, Abdelkarim ( IEEE , 2013 , Conference)
      Interfaces are recognized as an important mechanism to define contracts governing interactions between semi-independent software modules. Well-designed interfaces significantly reduce software complexity and ease maintainability ...

    • Mobile crowdsourced sensors selection for journey services 

      Ben Said, Ahmed; Erradi, Abdelkarim; Gharia Neiat, Azadeh; Bouguettaya, Athman ( Springer Verlag , 2018 , Conference)
      We propose a mobile crowdsourced sensors selection approach to improve the journey planning service especially in areas where no wireless or vehicular sensors are available. We develop a location estimation model of journey ...

    • Online cost optimization algorithms for tiered cloud storage services 

      Erradi, Abdelkarim; Mansouri, Yaser ( Elsevier , 2020 , Article)
      The new generation multi-tiered cloud storage services offer various tiers, such as hot and cool tiers, which are characterized by differentiated Quality of Service (QoS) (i.e., access latency, availability and throughput) ...

    • Towards automated hazard analysis for CPS security with application to CSTR system 

      Golabi, Arash; Erradi, Abdelkarim; Tantawy, Ashraf ( Elsevier , 2022 , Article)
      Hazard analysis to identify risks due to cyber attacks is crucial to ensure cyber-physical systems' safety and correct their behavior. This study proposes a framework to analyze cyber-physical systems (CPS) risks using ...

    • Web Application Resource Requirements Estimation Based on the Workload Latent Features 

      Erradi, Abdelkarim; Iqbal, Waheed; Mahmood, Arif; Bouguettaya, Athman ( Institute of Electrical and Electronics Engineers Inc. , 2021 , Article)
      Most cloud computing platforms offer reactive resource auto-scaling mechanisms for dealing with variable traffic patterns to deliver the desired QoS properties while keeping low provisioning costs. However, a range of ...

    • EasyCapstone: A framework for managing and assessing capstone design projects 

      Erradi, Abdelkarim ( IEEE , 2012 , Conference)
      To enhance students learning and satisfy ABET requirements, the Department of Computer Science and Engineering at Qatar University undertook over the past few years significant enhancements to the senior design project ...

    • Policy-based customisation and corrective adaptation of composite web services 

      Erradi, Abdelkarim ( Inderscience Publishers , 2011 , Article)
      Due to the typical long-running character of business processes, it is often desirable to be able to change a running process to respond to changes of business requirements and company policies. However, current process ...

    • LingoSnacks: M-Learning platform for language learning 

      Erradi, Abdelkarim; Nahia, Sajeda; Almerekhi, Hind; Al-Kailani, Lubna ( IEEE , 2012 , Conference)
      This paper reports the experience of designing and developing a multimedia m-Learning platform (named LingoSnacks) for interactive learning of Arabic spelling and vocabulary. It uses interactive game-like delivery methods ...

    • A model-based approach to self-protection in computing system 

      Chen, Qian; Abdelwahed, Sherif; Erradi, Abdelkarim ( Association for Computing Machinery, Inc , 2013 , Conference)
      This paper introduces a model-based autonomic security management (ASM) approach to estimate, detect and identify security attacks along with planning a sequence of actions to effectively protect the networked computing ...

    • An autonomic detection and protection system for denial of service attack 

      Chen, Qian; Abdelwahed, Sherif; Erradi, Abdelkarim ( ACTA Press , 2012 , Conference)
      This paper introduces a self-protection structure for computing system. The proposed structure aims to detect, classify and protect against DoS attacks. This architecture utilizes a model-based decision approach that ...

    • Applying and evaluating architectural patterns on a stock trading case study 

      Erradi, Abdelkarim ( IEEE , 2012 , Conference)
      Teaching architectural and design patterns is a difficult task and not easy to understand by the students as patterns are expressed at a higher abstraction level than programming language constructs or graphical UML ...

    • A finite context intrusion prediction model for cloud systems with a probabilistic suffix tree 

      Kholidy, Hisham A.; Yousof, Ahmed M.; Erradi, Abdelkarim; Abdelwahed, Sherif; Ali, Hisham Arafat ( Institute of Electrical and Electronics Engineers Inc. , 2014 , Conference)
      The success of the cloud computing paradigm depends on how effectively the cloud infrastructures will be able to instantiate and dynamically maintain computing platforms that meet Quality of Service (QoS) requirements. ...

    • Probabilistic qualitative preference matching in long-term IaaS composition 

      Mistry, Sajib; Bouguettaya, Athman; Dong, Hai; Erradi, Abdelkarim ( Springer Verlag , 2017 , Conference)
      We propose a qualitative similarity measure approach to select an optimal set of probabilistic Infrastructure-as-a-Service (IaaS) requests according to the provider's probabilistic preferences over a long-term period. The ...