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SIGMOD
2007
ACM
192views Database» more  SIGMOD 2007»
16 years 5 months ago
Benchmarking declarative approximate selection predicates
Declarative data quality has been an active research topic. The fundamental principle behind a declarative approach to data quality is the use of declarative statements to realize...
Amit Chandel, Oktie Hassanzadeh, Nick Koudas, Moha...
MOBIHOC
2008
ACM
16 years 4 months ago
An approximation algorithm for conflict-aware broadcast scheduling in wireless ad hoc networks
Broadcast scheduling is a fundamental problem in wireless ad hoc networks. The objective of a broadcast schedule is to deliver a message from a given source to all other nodes in ...
Reza Mahjourian, Feng Chen, Ravi Tiwari, My T. Tha...
SIGIR
2009
ACM
15 years 11 months ago
Approximating true relevance distribution from a mixture model based on irrelevance data
Pseudo relevance feedback (PRF), which has been widely applied in IR, aims to derive a distribution from the top n pseudo relevant documents D. However, these documents are often ...
Peng Zhang, Yuexian Hou, Dawei Song
INFOCOM
2007
IEEE
15 years 11 months ago
A Constant Approximation Algorithm for Interference Aware Broadcast in Wireless Networks
— Broadcast protocols play a vital role in multihop wireless networks. Due to the broadcast nature of radio signals, a node’s interference range can be larger than its transmis...
Zhenming Chen, Chunming Qiao, Jinhui Xu, Taekkyeun...
GLOBECOM
2006
IEEE
15 years 11 months ago
Efficient Approximations for Call Admission Control Performance Evaluations in Multi-Service Networks
—Several dynamic call admission control (CAC) schemes for cellular networks have been proposed in the literature to reserve resources adaptively to provide the desired quality of...
Emre A. Yavuz, Victor C. M. Leung