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ICDE
2002
IEEE
204views Database» more  ICDE 2002»
14 years 11 months ago
Approximating a Data Stream for Querying and Estimation: Algorithms and Performance Evaluation
Obtaining fast and good quality approximations to data distributions is a problem of central interest to database management. A variety of popular database applications including,...
Sudipto Guha, Nick Koudas
STOC
2003
ACM
171views Algorithms» more  STOC 2003»
14 years 10 months ago
Primal-dual meets local search: approximating MST's with nonuniform degree bounds
We present a new bicriteria approximation algorithm for the degree-bounded minimum-cost spanning tree problem: Given an undirected graph with nonnegative edge weights and degree b...
Jochen Könemann, R. Ravi
HPDC
2006
IEEE
14 years 4 months ago
Path Grammar Guided Trace Compression and Trace Approximation
Trace-driven simulation is an important technique used in the evaluation of computer architecture innovations. However using it for studying parallel computers and applications is...
Xiaofeng Gao, Allan Snavely, Larry Carter
ICCBR
2009
Springer
14 years 4 months ago
Quality Enhancement Based on Reinforcement Learning and Feature Weighting for a Critiquing-Based Recommender
Personalizing the product recommendation task is a major focus of research in the area of conversational recommender systems. Conversational case-based recommender systems help use...
Maria Salamó, Sergio Escalera, Petia Radeva
ICC
2007
IEEE
14 years 4 months ago
New UWB Receiver Designs Based on a Gaussian-Laplacian Noise-Plus-MAI Model
—Two novel receiver structures which surpass the performance of the conventional matched filter receiver are proposed for ultra-wide bandwidth multiple access communications. Th...
Norman C. Beaulieu, Somasundaram Niranjayan