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Mining User Models for Effective Adaptation of Context-aware Applications
Shiu Lun Tsang,Siobhan Clarke 보안공학연구지원센터 2008 International Journal of Security and Its Applicat Vol.2 No.1
Current context-aware adaptation techniques are limited in their support for user personalisation. Complex codebases, a reliance on developer modification and an inability to automatically learn from user interactions hinder their use for tailoring behaviour to individuals. To address these problems we have devised a personalised, dynamic, run-time approach to adaptation. The approach provides techniques for selecting the relevant information from a user’s behaviour history, for mining usage patterns, and for generating, prioritising, and selecting adaptation behaviour. Our evaluation study shows that the proposed mining approach is more accurate than rule-based and neural network methods when compared to actual user choices.
On the Handover Performance of a Tri-threshold Bandwidth Reservation CAC Scheme
Hoi Yan Tung,Kim Fung Tsang,Lap To Lee,Ka Lun Lam,Yu Ting Sun,Shiu Keung Ronald Kwan,Sammy Chan 한국전자통신연구원 2007 ETRI Journal Vol.29 No.1
A dynamic tri-threshold call admission control scheme has been developed. This scheme supports voice, data, and multimedia services and it complies with the universal mobile telecommunications system. The performance of the proposed scheme is evaluated under varying handover rates. The QoS performance–including channel utilization, call dropping probability, and blocking probability–is investigated. The performance of the developed scheme is found to be encouraging.