I study a stochastic approach to the recently introduced fresh inflation model for super Hubble scales. The wave function of the universe for super Hubble fluctuations is obtained for this model. I find that phase space loses its coherence at the end of the fresh inflationary period. This fact should be a consequence of a) the relative evolution of both, the scale factor and the horizon, and b)...

We propose an efficient search scheme based on a self-organizing hierarchical ring structure in unstructured peer-to-peer systems. Our solution maintains a consistent super-peer ratio and makes the peers with relatively high capacities super-peers in dynamic environments. The benchmarking results show that the proposed algorithm outperforms the static algorithm that has the fixed number of rend...

Super-orthogonal and super-quasi-orthogonal space-time trellis coding is seamlessly combined with orthogonal frequency division multiplexing (OFDM) to improve the performance of broadband wireless mobile communication systems. Quadrature amplitude modulation (QAM) is used on all OFDM subchannels. The transmitter is equipped with two antennas when using super-orthogonal space-time trellis codes ...

Numerous single-image super-resolution algorithms have been proposed in the literature, but few studies address the problem of performance evaluation based on visual perception. While most super-resolution images are evaluated by fullreference metrics, the effectiveness is not clear and the required ground-truth images are not always available in practice. To address these problems, we conduct ...

Peer-to-peer network is organized on top of another network as an overlay network. Super peer network is one of the peer-to-peer networks. A super peer, in a super peer based network, is a peer that has more responsibility than other peers have and is responsible for some of the tasks of network management. Since different peers vary in terms of capabilities, selecting a super peer is a challen...

How does language experience shape pitch processing? Do speakers of tone languages, which use pitch to signal lexical contrasts (e.g., Mandarin Chinese) attend to pitch movements more closely than speakers of intonation languages (e.g., English)? Contradictory findings have been reported in the literature. In the current study, we hypothesize that listeners should be particularly attentive to a...