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Despite tremendous growth in the importance and reach of the Web, users have little recourse when a Web page fails to load. Web browsers provide little feedback on such failures, typically offering only generic suggestions such as re-checking the URL or the machine's network settings. Hence, users are often unable to diagnose Web access problems, and resort to haphazardly modifying their settings...
Swarming peer-to-peer systems play an increasingly instrumental role in Internet content distribution. It is therefore important to better understand how these systems behave in practice. Recent research efforts have looked at various protocol parameters and have measured how they affect system performance and robustness. However, the importance of the strategy based on which peers establish connections...
Although the popular BitTorrent protocol strives to limit free-riding via its tit-for-tat incentives, recent research efforts have shown that it does not strictly enforce fairness. Free-riding opportunities indeed exist, mainly via optimistic unchokes, a BitTorrent mechanism that facilitates the continuous discovery of better peers to interact with. Our results in this work also show that increasing...
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