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- W4313463225 abstract "Video conferencing has become the preferred way of interacting virtually. Current video conferencing applications, like Zoom, Teams or WebEx, are centralized, cloud-based platforms whose performance crucially depends on the proximity of clients to their data centers. Clients from low-income countries are particularly affected as most data centers from major cloud providers are located in economically advanced nations. Centralized conferencing applications also suffer from occasional outages and are embattled by serious privacy violation allegations. In recent years, decentralized video conferencing applications built over p2p networks and incentivized through blockchain are becoming popular. A key characteristic of these networks is their openness: anyone can host a media server on the network. The reason, however, also leads to a security problem: a server may obfuscate its true location in order to gain an unfair business advantage. We propose DecVi, a decentralized multicast tree construction protocol that adaptively discovers efficient tree structures based on an exploration-exploitation framework. DecVi is motivated by the combinatorial multi-armed bandit problem and uses a succinct learning model to compute effective actions. Despite operating in a multi-agent setting with each server having only limited knowledge of the global network and without cooperation among servers, experimentally we show DecVi achieves similar quality-of-experience compared to a centralized globally optimal algorithm while achieving higher reliability and flexibility." @default.
- W4313463225 created "2023-01-06" @default.
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- W4313463225 date "2023-01-04" @default.
- W4313463225 modified "2023-09-29" @default.
- W4313463225 title "DecVi: Adaptive Video Conferencing on Open Peer-to-Peer Networks" @default.
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- W4313463225 doi "https://doi.org/10.1145/3571306.3571432" @default.
- W4313463225 hasPublicationYear "2023" @default.
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