Results 11 - 20 of 245,758

Parallel database systems: the future of high performance database systems

by David J. Dewitt, Jim Gray - COMMUNICATIONS OF THE ACM , 1992
"... Parallel database machine architectures have evolved from the use of exotic hardware to a software parallel dataflow architecture based on conventional shared-nothing hardware. These new designs provide impressive speedup and scaleup when processing relational database queries. This paper reviews t ..."
Abstract - Cited by 641 (13 self) - Add to MetaCart
Parallel database machine architectures have evolved from the use of exotic hardware to a software parallel dataflow architecture based on conventional shared-nothing hardware. These new designs provide impressive speedup and scaleup when processing relational database queries. This paper reviews

A Fast File System for UNIX

by Marshall Kirk Mckusick, William N. Joy, Samuel J. Leffler, Robert S. Fabry - ACM Transactions on Computer Systems , 1984
"... A reimplementation of the UNIX file system is described. The reimplementation provides substantially higher throughput rates by using more flexible allocation policies that allow better locality of reference and can be adapted to a wide range of peripheral and processor characteristics. The new file ..."
Abstract - Cited by 565 (6 self) - Add to MetaCart
A reimplementation of the UNIX file system is described. The reimplementation provides substantially higher throughput rates by using more flexible allocation policies that allow better locality of reference and can be adapted to a wide range of peripheral and processor characteristics. The new

Fine-grained Mobility in the Emerald System

by Eric Jul, Henry Levy, Norman Hutchinson, Andrew Black - ACM Transactions on Computer Systems , 1988
"... Emerald is an object-based language and system designed for the construction of distributed programs. An explicit goal of Emerald is support for object mobility; objects in Emerald can freely move within the system to take advantage of distribution and dynamically changing environments. We say that ..."
Abstract - Cited by 546 (23 self) - Add to MetaCart
Emerald is an object-based language and system designed for the construction of distributed programs. An explicit goal of Emerald is support for object mobility; objects in Emerald can freely move within the system to take advantage of distribution and dynamically changing environments. We say

The Vocabulary Problem in Human-System Communication

by G. W. Furnas, T. K. Landauer, L. M. Gomez, S. T. Dumais - COMMUNICATIONS OF THE ACM , 1987
"... In almost all computer applications, users must enter correct words for the desired objects or actions. For success without extensive training, or in first-tries for new targets, the system must recognize terms that will be chosen spontaneously. We studied spontaneous word choice for objects in five ..."
Abstract - Cited by 562 (8 self) - Add to MetaCart
In almost all computer applications, users must enter correct words for the desired objects or actions. For success without extensive training, or in first-tries for new targets, the system must recognize terms that will be chosen spontaneously. We studied spontaneous word choice for objects

New results in linear filtering and prediction theory

by R. E. Kalman, R. S. Bucy - TRANS. ASME, SER. D, J. BASIC ENG , 1961
"... A nonlinear differential equation of the Riccati type is derived for the covariance matrix of the optimal filtering error. The solution of this "variance equation " completely specifies the optimal filter for either finite or infinite smoothing intervals and stationary or nonstationary sta ..."
Abstract - Cited by 607 (0 self) - Add to MetaCart
in the theory of adaptive systems. Some aspects of this are considered briefly.

The design and implementation of an intentional naming system

by William Adjie-Winoto, Elliot Schwartz, Hari Balakrishnan, Jeremy Lilley - 17TH ACM SYMPOSIUM ON OPERATING SYSTEMS PRINCIPLES (SOSP '99) PUBLISHED AS OPERATING SYSTEMS REVIEW, 34(5):186--201, DEC. 1999 , 1999
"... This paper presents the design and implementation of the Intentional Naming System (INS), a resource discovery and service location system for dynamic and mobile networks of devices and computers. Such environments require a naming system that is (i) expressive, to describe and make requests based o ..."
Abstract - Cited by 518 (14 self) - Add to MetaCart
This paper presents the design and implementation of the Intentional Naming System (INS), a resource discovery and service location system for dynamic and mobile networks of devices and computers. Such environments require a naming system that is (i) expressive, to describe and make requests based

The Magma Algebra System I: The User Language

by Wieb Bosma , John Cannon , Catherine Playoust , 1997
"... In the first of two papers on Magma, a new system for computational algebra, we present the Magma language, outline the design principles and theoretical background, and indicate its scope and use. Particular attention is given to the constructors for structures, maps, and sets. ..."
Abstract - Cited by 1346 (7 self) - Add to MetaCart
In the first of two papers on Magma, a new system for computational algebra, we present the Magma language, outline the design principles and theoretical background, and indicate its scope and use. Particular attention is given to the constructors for structures, maps, and sets.

Classification in the KL-ONE knowledge representation system

by James G. Schmolze, Thomas A. Lipkis - COGNITIVE SCIENCE , 1985
"... KL-ONE lets one define and use a class of descriptive terms called Concepts, where each Concept denotes a set of objects A subsumption relation between Concepts is defined which is related to set inclusion by way of a semantics for Concepts. This subsumption relation defines a partial order on Conce ..."
Abstract - Cited by 673 (8 self) - Add to MetaCart
on Concepts, and KL-ONE organizes all Concepts into a taxonomy that reflects this partial order. Classification is a process that takes a new Concept and determines other Concepts that either subsume it or that it subsumes, thereby determining the location for the new Concept within a given taxonomy. We

The Ant System: Optimization by a colony of cooperating agents

by Marco Dorigo, Vittorio Maniezzo, Alberto Colorni - IEEE TRANSACTIONS ON SYSTEMS, MAN, AND CYBERNETICS-PART B , 1996
"... An analogy with the way ant colonies function has suggested the definition of a new computational paradigm, which we call Ant System. We propose it as a viable new approach to stochastic combinatorial optimization. The main characteristics of this model are positive feedback, distributed computation ..."
Abstract - Cited by 1300 (46 self) - Add to MetaCart
An analogy with the way ant colonies function has suggested the definition of a new computational paradigm, which we call Ant System. We propose it as a viable new approach to stochastic combinatorial optimization. The main characteristics of this model are positive feedback, distributed

Virtual time and global states of distributed systems.

by Friedemann Mattern - Proc. Workshop on Parallel and Distributed Algorithms, , 1989
"... Abstract A distributed system can be characterized by the fact that the global state is distributed and that a common time base does not exist. However, the notion of time is an important concept in every day life of our decentralized \ r eal world" and helps to solve problems like getting a c ..."
Abstract - Cited by 744 (5 self) - Add to MetaCart
of the global state problem. Finally, we present a new algorithm to compute a consistent global snapshot of a distributed system where messages may be r eceived out of order.
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