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Felix Xiaozhu Lin


Publications by Felix Xiaozhu Lin (bibliography)

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Wang, Zhen, Lin, Felix Xiaozhu, Zhong, Lin and Chishtie, Mansoor (2012): How far can client-only solutions go for mobile browser speed?. In: Proceedings of the 2012 International Conference on the World Wide Web 2012. pp. 31-40. http://dx.doi.org/10.1145/2187836.2187842

Mobile browser is known to be slow because of the bottleneck in resource loading. Client-only solutions to improve resource loading are attractive because they are immediately deployable, scalable, and secure. We present the first publicly known treatment of client-only solutions to understand how much they can improve mobile browser speed without infrastructure support. Leveraging an unprecedented set of web usage data collected from 24 iPhone users continuously over one year, we examine the three fundamental, orthogonal approaches a client-only solution can take: caching, prefetching, and speculative loading. Speculative loading, as is firstly proposed and studied in this work, predicts and speculatively loads the subresources needed to open a webpage once its URL is given. We show that while caching and prefetching are highly limited for mobile browsing, speculative loading can be significantly more effective. Empirically, we show that client-only solutions can improve the browser speed by about 1.4 second on average for websites visited by the 24 iPhone users. We also report the design, realization, and evaluation of speculative loading in a WebKit-based browser called Tempo. On average, Tempo can reduce browser delay by 1 second (~20%).

© All rights reserved Wang et al. and/or ACM Press

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Lin, Felix Xiaozhu, Ashbrook, Daniel and White, Sean (2011): RhythmLink: securely pairing I/O-constrained devices by tapping. In: Proceedings of the 2011 ACM Symposium on User Interface Software and Technology 2011. pp. 263-272. http://dx.doi.org/10.1145/2047196.2047231

We present RhythmLink, a system that improves the wireless pairing user experience. Users can link devices such as phones and headsets together by tapping a known rhythm on each device. In contrast to current solutions, RhythmLink does not require user interaction with the host device during the pairing process; and it only requires binary input on the peripheral, making it appropriate for small devices with minimal physical affordances. We describe the challenges in enabling this user experience and our solution, an algorithm that allows two devices to compare imprecisely-entered tap sequences while maintaining the secrecy of those sequences. We also discuss our prototype implementation of RhythmLink and review the results of initial user tests.

© All rights reserved Lin et al. and/or ACM Press

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