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INFOCOM
2012
IEEE
13 years 6 months ago
Spectrum management and power allocation in MIMO cognitive networks
Cognitive radio (CR) techniques improve the spectrum utilization by exploiting temporarily-free frequency bands (i.e., in the time domain). The spectrum utilization can be boosted...
Diep N. Nguyen, Marwan Krunz
TVCG
2012
195views Hardware» more  TVCG 2012»
13 years 6 months ago
Hierarchical Streamline Bundles
—Effective three-dimensional streamline placement and visualization plays an essential role in many science and engineering disciplines. The main challenge for effective streamli...
Hongfeng Yu, Chaoli Wang, Ching-Kuang Shene, Jacqu...
VLDB
2007
ACM
114views Database» more  VLDB 2007»
16 years 4 months ago
XRPC: Interoperable and Efficient Distributed XQuery
We propose XRPC, a minimal XQuery extension that enables distributed yet efficient querying of heterogeneous XQuery data sources. XRPC enhances the existing concept of XQuery func...
Ying Zhang, Peter A. Boncz
CIKM
2009
Springer
15 years 8 months ago
Space-economical partial gram indices for exact substring matching
Exact substring matching queries on large data collections can be answered using q-gram indices, that store for each occurring q-byte pattern an (ordered) posting list with the po...
Nan Tang, Lefteris Sidirourgos, Peter A. Boncz
CIVR
2008
Springer
220views Image Analysis» more  CIVR 2008»
15 years 5 months ago
Web-based information content and its application to concept-based video retrieval
Semantic similarity between words or phrases is frequently used to find matching correlations between search queries and documents when straightforward matching of terms fails. Th...
Alexander Haubold, Apostol Natsev