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Qatar Foundation Annual Research Forum Volume 2011 Issue 1
- Conference date: 20-22 Nov 2011
- Location: Qatar National Convention Center (QNCC), Doha, Qatar
- Volume number: 2011
- Published: 20 November 2011
181 - 200 of 281 results
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Characterizing Scientific Applications on Virtualized Cloud Platforms
More LessAbstract In general, scientific applications require different types of computing resources based on the application's behavior and needs. For example, page indexing in an Arabic search engine requires sufficient network bandwidth to process millions of web pages while seismic modeling is CPU and graphics intensive for real-time fluid analysis and 3D visualization. As a potential solution, cloud computing, with its elastic, on Read More
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Human-Robot Interaction in an Arabic Social and Cultural Setting
Authors: Imran Fanaswala, Maxim Makatchev, Brett Browning, Reid Simmons and Majd SakrAbstract We have permanently deployed Hala; the world first's English and Arabic Robot Receptionist for 500+ days in an uncontrolled multi-cultural/multi-lingual environment within Carnegie Mellon Qatar. Hala serves as a research testbed for studying the influence of socio-cultural norms and the nature of interactions during human-robot interaction within a multicultural, yet primarily ethnic Arab, setting. Hala, as a Read More
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Overcoming Machine Tools Blindness by a Dedicated Computer Vision System
Authors: Hussien J Zughaer and Ghassan Al-KindiAbstract Although Computerized Numerical Controlled (CNC) machines are currently regarded as the heart of machining workshops they are still suffering from machine blindness, hence, they cannot automatically judge the performance of applied machining parameters or monitor tool wear. Therefore, parts produced on these machines may not be as precise as expected. In this research an innovative system is developed an Read More
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EEG - Mental Task Discrimination by Digital Signal Processing
More LessAbstract Recent advances in computer hardware and signal processing have made possible the use of EEG signals or “brain waves” for communication between humans and computers. Locked-in patients have now a way to communicate with the outside world, but even with the last modern techniques, such systems still suffer communication rates on the order of 2-3 tasks/minute. In addition, existing systems are not Read More
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Joint Hierarchical Modulation and Network Coding for Two Way Relay Network
Authors: Rizwan Ahmad, Mazen O. Hasna and Adnan Abu-DayyaAbstract Cooperative communications has gained a lot of attention in the research community recently. This was possible due to the fact that the broadcast nature of wireless networks, which was earlier considered a drawback, can now be used to provide spatial diversity to increase throughput, reduce energy consumption and provide network resilience. The main drawback of cooperative communication is that it re Read More
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Repairing Access Control Configurations via Answer Set Programming
Authors: Khaled Mohammed Khan and Jinwei HuAbstract Although various access control models have been proposed, access control configurations are error prone. There is no assurance of the correctness of access control configurations. When we find errors in an access control configuration, we take immediate actions to repair the configuration. The repairing is difficult, largely because arbitrary changes to the configuration may result in no less threat than errors do Read More
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A Security Profile-based Assurance Framework for Service Software
More LessAbstract A service software is a self-contained, modular application deployed over standard computing platforms, and readily accessible by users within or across organizational boundaries using Internet. For businesses to open up their applications for the interaction with other service software, a fundamental requirement is that there has to be sufficient choices for security provisions allowing service consumers to sele Read More
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Hierarchical Clustering for Keyphrase Extraction from Arabic Documents Based on Word Context
Authors: Rehab Duwairi, Fadila Berzou and Souad MecheterAbstract Keyphrase extraction is a process by which the set of words or phrases that best describe a document is specified. The phrases could be extracted from the document words itself, or they could be external and specified from an ontology for a given domain. Extracting keyphrases from documents is critical for many applications such as information retrieval, document summarization or clustering. Many keyphrase Read More
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On the Design of Learning Games and Puzzles for Children with Intellectual Disability
Authors: Aws Yousif Fida El-Din and Jihad Mohamed AljaamAbstract The objective of this paper is to present the edutainment learning games that we are developing for Qatari children with moderate intellectual disability. These games will help them to learn effectively in funny and enjoyable ways. We use multimedia technology merged with intelligent algorithms to guide the children in play. As the number of children with intellectual disability is increasing, an early interventio Read More
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Minimal Generators Based Algorithm for Text Features Extraction: A More Efficient and Large Scale Approach
Authors: Samir Elloumi, Fethi Fejani, Sadok Ben Yahia and Ali JaouaAbstract In the recent years, several mathematical concepts were successfully explored in computer science domain, as basis for finding original solutions for complex problems related to knowledge engineering, data mining, information retrieval, etc. Thus, Relational Algebra (RA) and Formal Concept Analysis (FCA) may be considered as useful mathematical foundations that unified data and knowledge in information retrieval Read More
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Preserving Privacy from Unsafe Data Correlation
Authors: Bechara Al Bouna, Christopher Clifton and Qutaibah MalluhiAbstract With the emergence of cloud computing, providing safe data outsourcing has become an active topic. Several regulations have been issued to foresee that individual and corporate information would be kept private in a cloud computing environment. To guarantee that these regulations are fully maintained, the research community proposed new privacy constraints such as k-anonymity, l-diversity and t-close Read More
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News Alerts Trigger System to Support Business Owners
Authors: Jihad Mohamad Aljaam, Khaled Sohil Alsaeed and Ali Mohamad JaouaAbstract The exponential growth of financial news coming from different sources makes getting effective benefit from them very hard. Business decision makers who reply to these news, are unable to follow them accurately in real time. They need always to be alerted immediately for any potential financial events that may affect their businesses whenever they occur. Many important news can simply be embedded into tho Read More
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Assistive Technology for People with Hearing and Speaking Disabilities
Abstract The community with Hearing or Speaking Disabilities represents a significant component of the society that needs to be well integrated in order to foster great advancements through leveraging all contributions of every member in the society. When those people cannot read lips they usually need interpreters to help them communicate with people who do not know sign language, and they also need an interpreter whe Read More
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Using Cognitive Dimensions Framework to Evaluate Constraint Diagrams
Authors: Noora Fetais and Peter ChengAbstract The Cognitive Dimensions of Notations are a heuristic framework created by Thomas Green for analysing the usability of notational systems. Microsoft used this framework as a vocabulary for evaluating the usability of their C# and .NET development tools. In this research we used this framework to compare the evaluation of the Constraint Diagrams and the evaluation of the Natural Language by running a us Read More
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IT System for Improving Capability and Motivation of Workers: An Applied Study with Reference to Qatar
Authors: Hussein Alsalemi and Pam MayhewAbstract Information Systems (IS) is a discipline that has its roots in the field of organizational development. Information Technology (IT) is a primary tool that has been used by IS to support the aim of developing organisations. However, IT has focused on supporting two main areas in organisations to help them become better at achieving their goals.These two areas are: operational and strategic. Little research has be Read More
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Utilization of Mixtures as Working Fluids in Organic Rankine Cycle
Authors: Mirko Stijepovic, Patrick Linke, Hania Albatrni, Rym Kanes, Umaira Nisa, Huda Hamza, Ishrath Shiraz and Sally El MeragawiAbstract Over the past several years ORC processes have become very promising for power production from low grade heat sources: solar, biomass, geothermal and waste heat. The key challenge in the design process is the selection of an appropriate working fluid. A large number of authors used pure components as working fluid, and assess ORC performance. ORC systems that use single working fluid component ha Read More
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Application of Nanotechnology in Hybrid Solar Cells
Authors: Narendra Kumar Agnihotra and S SakthivelAbstract Plastic/organic /polymer photovoltaic solar cells are fourth generation cells however the efficiency, thermal stability and cost of fourth generation solar cells are still not sufficient to replace conventional solar cells. Hybrid solar cells have been one of the alternate technologies to harness solar power into electrical power to overcome the high cost of conventional solar cells. This review paper has focused on the co Read More
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Optimized Energy Efficient Content Distribution Over Wireless Networks with Mobile-to-Mobile Cooperation
Authors: Elias Yaacoub, Fethi Filali and Adnan Abu-DayyaAbstract Major challenges towards the development of next generation 4G wireless networks include fulfilling the foreseeable increase in power demand of future mobile terminals (MTs) in addition to meeting the high throughput and low latency requirements of emerging multimedia services. Studies show that the high-energy consumption of battery operated MTs will be one of the main limiting factors for future wirel Read More
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Design of Novel Gas-to-Liquid Reactor Technology Utilizing Fundamental and Applied Research Approaches
Authors: Nimir Elbashir, Aswani Mogalicherla and Elfatih ElmalikAbstract This research work is in line with the State of Qatar's aspiration on becoming the “gas capital of the world”, as it focuses on developing cost effective Gas-to- Liquid (GTL) technologies via Fischer-Tropsch synthesis (FTS). The objective of our present research activities is developing a novel approach to the FTS reactor design through controlling the thermo-physical characteristics of the reaction media by the introducti Read More
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Hierarchical Cellular Structures with Tailorable Proparties
Authors: Abdel Magid Hamouda, Amin Ajdari, Babak Haghpanah Jahromi and Ashkan VaziriAbstract Hierarchical structures are found in many natural and man-made materials [1]. This structural hierarchy play an important role in determining the overall mechanical behavior of the structure. It has been suggested that increasing the hierarchical level of a structure will result in a better performing structure [2]. Besides, honeycombs are well known structures for lightweight and high strength applications [3]. In t Read More
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