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Mencius is a protocol for general state machine replication that tolerates crash failures. It has high performance in wide-area networks. However, the commit latency of Mencius is limited by the slowest replica. This paper presents Fast Mencius, a crash fault-tolerant state machine replication protocol, which enhances Mencius with Active Revoke and Multi-instance Propose. Active Revoke allows the...
This paper discusses productivity of 10 airports around Yangtze River Delta in 2007. This study differs from previous work in that both desirable and undesirable outputs (i.e., number of delays flights) are considered. A nonparametric directional output distance function, rather than the traditional Data Envelopment Analysis (DEA), was applied. For comparison purposes, a DEA model without consideration...
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