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Collection Scheme (collection + scheme)

Distribution by Scientific Domains
Information Science and Computing75%

Selected Abstracts

Resource management in open Linda systems

CONCURRENCY AND COMPUTATION: PRACTICE & EXPERIENCE, Issue 13 2003
Ronaldo Menezes
Abstract Coordination systems, in particular Linda, have established themselves as important tools for the development of applications to open systems such as the Internet. This paper shows how to tackle a forgotten, but crucial problem in open coordination systems: memory management. As with any system which intends to be of wide use and because memory is a finite resource, coordination systems must address the problems of memory exhaustion. This paper first explores the orthogonality between coordination and computation in order to make it clear that the problem of memory exhaustion in coordination systems cannot be solved using garbage collection schemes implemented at the computation language,a garbage collection scheme must exist in the coordination environment as well. Following the explanation on orthogonality, the paper will focus on describing a garbage collection scheme for the Linda family of coordination systems. It is expected that the solution in Linda can be adapted to other coordination systems as long as they are based on tuple space communication. Copyright © 2003 John Wiley & Sons, Ltd. [source]

A note on the ,1 collection scheme and fragments of bounded arithmetic

MLQ- MATHEMATICAL LOGIC QUARTERLY, Issue 2 2010
Zofia Adamowicz
Abstract We show that for each n , 1, if T2n does not prove the weak pigeonhole principle for ,bn functions, then the collection scheme B ,1 is not finitely axiomatizable over T2n. The same result holds with Sn2 in place of T 2n (© 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) [source]

Resource management in open Linda systems

CONCURRENCY AND COMPUTATION: PRACTICE & EXPERIENCE, Issue 13 2003
Ronaldo Menezes
Abstract Coordination systems, in particular Linda, have established themselves as important tools for the development of applications to open systems such as the Internet. This paper shows how to tackle a forgotten, but crucial problem in open coordination systems: memory management. As with any system which intends to be of wide use and because memory is a finite resource, coordination systems must address the problems of memory exhaustion. This paper first explores the orthogonality between coordination and computation in order to make it clear that the problem of memory exhaustion in coordination systems cannot be solved using garbage collection schemes implemented at the computation language,a garbage collection scheme must exist in the coordination environment as well. Following the explanation on orthogonality, the paper will focus on describing a garbage collection scheme for the Linda family of coordination systems. It is expected that the solution in Linda can be adapted to other coordination systems as long as they are based on tuple space communication. Copyright © 2003 John Wiley & Sons, Ltd. [source]

THE FAO PRECAUTIONARY APPROACH AFTER ALMOST 10 YEARS: HAVE WE PROGRESSED TOWARDS IMPLEMENTING SIMULATION-TESTED FEEDBACK-CONTROL MANAGEMENT SYSTEMS FOR FISHERIES MANAGEMENT?

NATURAL RESOURCE MODELING, Issue 4 2006
ANDRÉ E. PUNT
ABSTRACT. It is almost ten years since the FAO Technical Consultation on the Precautionary Approach to Capture Fisheries took place in Lysekil, Sweden. One outcome from this Technical Consultation was a set of guidelines on the precautionary approach to capture fisheries and species introductions. These guidelines include the need to incorporate harvest control rules in management plans. Harvest control rules should specify what action is to be taken when specified deviations from the operational targets and constraints are observed. The specification should include minimum data requirements for the types of assessment methods to be used for decision-making. Combinations of harvest control rules, assessment methods and data collection schemes are referred to as management procedures. It is now well-recognized that using management procedures is likely to lead to improved conservation of fishery resources, and that they should be evaluated to assess whether they are likely to achieve the goals for fishery management given the types of uncertainties that are likely to frustrate this venture. In general, evaluation of management procedures has been based on simulation modeling. This paper reviews the progress that has been made in various fisheries jurisdictions in terms of implementing management procedures, and why and where it has proved difficult or even impossible to implement management procedures. [source]