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このアイテムの引用には次の識別子を使用してください:
http://hdl.handle.net/10119/8516
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| タイトル: | Performance Evaluation of Workflows Using Continuous Petri Nets with Interval Firing Speeds |
| 著者: | HIRAISHI, Kunihiko |
| キーワード: | fluidification
interval methods
workflow
performance evaluation
hybrid systems |
| 発行日: | 2008-11-01 |
| 出版者: | 電子情報通信学会 |
| 誌名: | IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences |
| 巻: | E91-A |
| 号: | 11 |
| 開始ページ: | 3219 |
| 終了ページ: | 3228 |
| DOI: | 10.1093/ietfec/e91-a.11.3219 |
| 抄録: | In this paper, we study performance evaluation of workflow-based information systems. Because of state space explosion, analysis by stochastic models, such as stochastic Petri nets and queuing models, is not suitable for workflow systems in which a large number of flow instances run concurrently. We use fluid-flow approximation technique to overcome this difficulty. In the proposed method, GSPN (Generalized Stochastic Petri Nets) models representing workflows are approximated by a class of timed continuous Petri nets, called routing timed continuous Petri nets (RTCPN). In RTCPN models, each discrete set is approximated by a continuous region on a real-valued vector space, and variance in probability distribution is replaced with a real-valued interval. Next we derive piecewise linear systems from RTCPN models, and use interval methods to compute guaranteed enclosures for state variables. As a case study, we solve an optimal resource assignment problem for a paper review process. |
| Rights: | Copyright (C)2008 IEICE. Kunihiko HIRAISHI, IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences, E91-A(11), 2008, 3219-3228. http://www.ieice.org/jpn/trans_online/ |
| URI: | http://hdl.handle.net/10119/8516 |
| 資料タイプ: | publisher |
| 出現コレクション: | b10-1. 雑誌掲載論文 (Journal Articles)
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このアイテムのファイル:
| ファイル |
記述 |
サイズ | 形式 |
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| 13773.pdf | | 372Kb | Adobe PDF | 見る/開く |
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