Now showing items 21-30 of 63
Optimizing complex queries based on similarities of subqueries
(Springer-Verlag, 2005-09)
As database technology is applied to more and more application domains, user queries are becoming increasingly complex (e.g. involving a large number of joins and a complex query structure). Query optimizers in existing ...
CAS-DSM: A Compiler Assisted Software Distributed Shared Memory
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 2004-04)
Traditional software Distributed Shared Memory (DSM) systems rely on the virtual memory management mechanisms to detect accesses to shared memory locations and maintain their consistency. The resulting involvement of the ...
An Incomplete Cholesky Factorization for Dense Symmetric Positive Definite Matrices
(Kluwer Academic Publishers; Swets & Zeitlinger ; Springer Science+Business Media, 2000-09)
In this paper, we study the use of an incomplete Cholesky factorization (ICF) as a preconditioner for solving dense symmetric positive definite linear systems. This method is suitable for situations where matrices cannot ...
CTP: A New Constraint-Based Formalism for Conditional, Temporal Planning
(Kluwer Academic Publishers; Springer Science+Business Media, 2003-10)
Temporal constraints pose a challenge for conditional planning, because it is necessary for a conditional planner to determine whether a candidate plan will satisfy the specified temporal constraints. This can be difficult, ...
Automatic Thematic Extractor
(Kluwer Academic Publishers; Springer Science+Business Media, 2003-07)
We have created a system that identifies musical “keywords” or themes. The system searches for all patterns composed of melodic (intervallic for our purposes) repetition in a piece. This process generally uncovers a large ...
Rational Communication in Multi-Agent Environments
(Kluwer Academic Publishers; Springer Science+Business Media, 2001-09)
We address the issue of rational communicative behavior among autonomous self-interested agents that have to make decisions as to what to communicate, to whom, and how. Following decision theory, we postulate that a rational ...
Analyzing scenery images by monotonic tree
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 2003-04)
Content-based image retrieval (CBIR) has been an active research area in the last ten years, and a variety of techniques have been developed. However, retrieving images on the basis of low-level features has proven ...
Quantum Computing with Trapped Ion Hyperfine Qubits
(Kluwer Academic Publishers-Plenum Publishers; Springer Science + Business Media, Inc., 2004-10)
We discuss the basic aspects of quantum information processing with trapped ions, including the principles of ion trapping, preparation and detection of hyperfine qubits, single-qubit operations and multi-qubit entanglement ...
Generalizations of the Hamming Associative Memory
(Kluwer Academic Publishers; Springer Science+Business Media, 2001-04)
This Letter reviews four models of associative memory which generalize the operation of the Hamming associative memory: the grounded Hamming memory, the cellular Hamming memory, the decoupled Hamming memory, and the two-level ...