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政大典藏 > College of Commerce > Department of MIS > Periodical Articles > Item 140.119/72839

Please use this identifier to cite or link to this item: https://nccur.lib.nccu.edu.tw/handle/140.119/72839

Title:	Deadlock Control for Weighted Systems of Simple Sequential Processes with Resources Requirement (WS3PR)
Authors:	趙玉 Chao, Daniel Yuh
Contributors:	資管系
Keywords:	Petri nets;siphons;traps;FMS;liveness;deadlock;control
Date:	2009-11
Issue Date:	2015-01-12 15:34:24 (UTC+8)
Abstract:	Current deadlock control approaches for WS3PR (Weighted Systems of Simple Sequential Processes with Resources Requirement) suffer from incorrect liveness characterization based on the concept of deadly marked siphons (DMS). We discover that nonlive transitions may exist even though there are no DMS. That is, the net model may be weakly live or in livelock states under no DMS. It is live under a new liveness condition: all siphons must be max-controlled. We extend the liveness analysis for S 3PR(systems of simple sequential processes with resources) to WS3PR (Weighted Systems of Simple Sequential Processes with Resources Requirement). We develop a new liveness condition called max-controlled siphons to replace that of the absence of empty siphons. We propose further a deadlock control policy for WS3PR by adding control nodes and arcs similar to that for S3PR.
Relation:	Journal of Information Science and Engineering,25(6),1963-1978
Data Type:	article
Appears in Collections:	[Department of MIS] Periodical Articles

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