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CIKM
2008
Springer
13 years 9 months ago
The query-flow graph: model and applications
Query logs record the queries and the actions of the users of search engines, and as such they contain valuable information about the interests, the preferences, and the behavior ...
Paolo Boldi, Francesco Bonchi, Carlos Castillo, De...
BIOSYSTEMS
2007
107views more  BIOSYSTEMS 2007»
13 years 7 months ago
Calcium signalling in astrocytes and modulation of neural activity
Up to few years ago astrocytes have been considered as passive elements of brain, providing structural and metabolic support to the neurons, but playing little role in information...
Angelo Di Garbo, Michele Barbi, Santi Chillemi, Su...
CORR
2010
Springer
170views Education» more  CORR 2010»
13 years 7 months ago
Sidelobe Control in Collaborative Beamforming via Node Selection
Collaborative beamforming (CB) is a power efficient method for data communications in wireless sensor networks (WSNs) which aims at increasing the transmission range in the network...
Mohammed F. A. Ahmed, Sergiy A. Vorobyov
CORR
2008
Springer
147views Education» more  CORR 2008»
13 years 7 months ago
Impact of CSI on Distributed Space-Time Coding in Wireless Relay Networks
We consider a two-hop wireless network where a transmitter communicates with a receiver via M relays with an amplify-and-forward (AF) protocol. Recent works have shown that sophis...
Mari Kobayashi, Xavier Mestre
CORR
2008
Springer
131views Education» more  CORR 2008»
13 years 7 months ago
Jamming in Fixed-Rate Wireless Systems with Power Constraints - Part I: Fast Fading Channels
This is the first part of a two-part paper that studies the problem of jamming in a fixed-rate transmission system with fading, under the general assumption that the jammer has no...
George T. Amariucai, Shuangqing Wei