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CEC
2007
IEEE
14 years 4 months ago
On the analysis of average time complexity of estimation of distribution algorithms
— Estimation of Distribution Algorithm (EDA) is a well-known stochastic optimization technique. The average time complexity is a crucial criterion that measures the performance o...
Tianshi Chen, Ke Tang, Guoliang Chen, Xin Yao
GLOBECOM
2006
IEEE
14 years 4 months ago
Low-Complexity Adaptive High-Resolution Channel Prediction for OFDM Systems
Abstract— We propose a low-complexity adaptive highresolution channel prediction algorithm for pilot symbol assisted orthogonal frequency division multiplexing (OFDM) systems. Th...
Ian C. Wong, Brian L. Evans
SIGIR
2006
ACM
14 years 4 months ago
Answering complex questions with random walk models
We present a novel framework for answering complex questions that relies on question decomposition. Complex questions are decomposed by a procedure that operates on a Markov chain...
Sanda M. Harabagiu, V. Finley Lacatusu, Andrew Hic...
IAT
2005
IEEE
14 years 3 months ago
Coordinating Non Cooperative Planning Agents: Complexity Results
Whenever independent, non-cooperative actors jointly have to solve a complex task, they need to coordinate their efforts. Typical examples of such task coordination problems are s...
Adriaan ter Mors, Cees Witteveen
VLDB
2001
ACM
92views Database» more  VLDB 2001»
14 years 2 months ago
Fast Evaluation Techniques for Complex Similarity Queries
Complex similarity queries, i.e., multi-feature multi-object queries, are needed to express the information need of a user against a large multimedia repository. Even if a user in...
Klemens Böhm, Michael Mlivoncic, Hans-Jö...