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Dubai, United Arab Emirates

The University of Wollongong in Dubai , abbreviated as UOWD, is a private university located in Dubai, United Arab Emirates. The University is one of the UAE’s oldest and most prestigious universities. The Campus has approximately 4000 students from almost a hundred countries.The University of Wollongong in Dubai marked the University's 20th Founding Anniversary in 2013. Wikipedia.

Zareh Bidoki A.M.,University of Yazd | Ghodsnia P.,University of Waterloo | Yazdani N.,University of Tehran | Oroumchian F.,University of Wollongong in Dubai
Information Processing and Management

Due to the proliferation and abundance of information on the web, ranking algorithms play an important role in web search. Currently, there are some ranking algorithms based on content and connectivity such as BM25 and PageRank. Unfortunately, these algorithms have low precision and are not always satisfying for users. In this paper, we propose an adaptive method, called A3CRank, based on the content, connectivity, and click-through data triple. Our method tries to aggregate ranking algorithms such as BM25, PageRank, and TF-IDF. We have used reinforcement learning to incorporate user behavior and find a measure of user satisfaction for each ranking algorithm. Furthermore, OWA, an aggregation operator is used for merging the results of the various ranking algorithms. A3CRank adapts itself with user needs and makes use of user clicks to aggregate the results of ranking algorithms. A3CRank is designed to overcome some of the shortcomings of existing ranking algorithms by combining them together and producing an overall better ranking criterion. Experimental results indicate that A3CRank outperforms other combinational ranking algorithms such as Ranking SVM in terms of P@n and NDCG metrics. We have used 130 queries on University of California at Berkeley's web to train and evaluate our method. © 2009 Elsevier Ltd. All rights reserved. Source

Al Tahan A.M.,American University of Beirut | Watfa M.K.,University of Wollongong in Dubai
Wireless Communications and Mobile Computing

As large-scale sensor networks become more feasible, properties such as stateless nature and low maintenance overhead make position-based routing increasingly more attractive. Motivated by the fact that sensor networks would probably be deployed in a three-dimensional space, we present a novel 3D geographical routing (3DGR) algorithm that makes use of the position information to route packets from sources to destinations with high path quality and reliability. The locality and high scalability of this algorithm make it suitable for wireless sensor networks. It provides high adaptability to changes in topology and recovery of link failures which increases its reliability. We also incorporate battery-aware energy efficient schemes to increase the overall lifetime of the network. To reduce latency, a method of keeping a small record of recent paths is used. We also show that location errors will still result in good performance of our algorithm while the same assumptions might yield bad performance or even complete failures in other popular geographical routing algorithms. We evaluate the 3DGR protocol using simulation. Compared to other geographic routing algorithms, we find that 3DGR exhibits noticeably longer network lifetime, smaller path stretch, smaller end-to-end delay, and better packet delivery ratio. Copyright © 2010 John Wiley & Sons, Ltd. Source

Sarabdeen J.,University of Wollongong in Dubai | De-Miguel-Molina M.,Polytechnic University of Valencia
WSEAS Transactions on Computers

The open nature of the social network sites facilitates many opportunities for children but also makes them vulnerable for abuses from various parties. Obscenity, hate speech, and indecent contents that are not suitable for children are very common in the social network sites. The Malaysian, Spanish and Australian government regulate these contents as they regulate the contents in other traditional mass media. For the purpose of regulatory compliance most social networks do not allow children under 13-14 to access their services. However, the technology that controls this restriction can easily be evaded and the service providers are still uncertain how to label contents appropriate to child access. Both Governments and corporations agree that control is insufficient and so companies embark on self-regulation of themselves through Codes of Conduct. The objective of this paper is to compare how far the regulation and self-regulation protect children in social networks sites and what need to be done to improve the effectiveness of regulation. The paper compares social networks in Malaysia, Spain and Australia to find strengths and opportunities that could enrich regulation of social networks in those countries. Source

Khalifa M.,Al Ghurair University | Cheng S.N.,Uniplan Hong Kong Ltd. | Shen K.N.,University of Wollongong in Dubai
Journal of Computer Information Systems

This study was driven by three underlying motivations. One of them is the gap between high penetration rate of mobile phone and relatively low adoption rate of m-commerce. The second is to reconcile the inconsistent findings in prior IT adoption research regarding the consistency of the relationship between attitude and intention. Finally, we hope to provide the theoretical underpinning for various interventions to promote m-commerce adoption. In this study, we extended the theory of planned behavior (TPB) by integrating confidence as a moderator for the relationship between attitude and intention. Furthermore, trial, communication and observation are identified as the sources for confidence with m-commerce and their effects are mediated through exposure. The research model was empirically tested and supported. Both theoretical and practical implications are discussed. Source

Sundarakani B.,University of Wollongong in Dubai | De Souza R.,National University of Singapore | Goh M.,National University of Singapore | Goh M.,University of South Australia | And 2 more authors.
International Journal of Production Economics

Environmental consciousness has become critical in the design and operation of globally integrated supply chain networks. This research examines the carbon footprint across supply chains and thus contributes to the knowledge and practice of green supply chain management. The analytical model uses the long-range Lagrangian and the Eulerian transport methods. Analytical and finite difference methods are used to approximate the three-dimensional infinite footprint model. A simplified numerical example validates and illustrates the proposed approach. The results show that carbon emissions across stages in a supply chain can constitute a significant threat that warrants careful attention in the design phase of supply chains. © 2010 Elsevier B.V.All rights reserved. Source

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