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In this paper, we introduce Smart Source, a crowd sourcing based mobile Question & Answer (Q&A) system that aims to provide mobile information seekers with timely, trustworthy and accurate answers while ensuring that information providers are not inappropriately burdened. We tackle this challenge by taking advantage of both static and dynamic context and semantics from mobile users...
In this paper, we explore the problem of supporting efficient access to social media contents on social network sites for mobile devices without requiring mobile users to be online all the time. We propose and implement a broker/proxy based architecture that stages data at a broker/proxy, and selectively downloads to the mobile device only those contents that have a high likelihood of being viewed...
Estimating communication latency is challenging in dynamic settings, e.g mobile applications where the source and/or destination of the communication can move arbitrarily. In this paper, we explore a many-to-one communication pattern, called convergecast, where mobile sensors report their sensed values to one or more servers (data sinks) in a periodic or queried manner. Such “convergecast” communication...
Considering the instability of link quality, a new routing algorithm for WMN, namely ASA, based on Ant Colony Optimization algorithm(ACO) and simulated annealing algorithm(SA) was presented. This algorithm not only combined the adaptation, robustness and distributed, decentralized merit of ACO but also used SA to remedy the weakness of ant algorithm and increase the convergence rate of ACO. Simulation...
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