標題: | Technical note - On optimization approach for multidisk vertical allocation problems |
作者: | Tsai, JF Li, HL 資訊管理與財務金融系 註:原資管所+財金所 Department of Information Management and Finance |
關鍵字: | data allocation;linearization;global optimization |
公開日期: | 16-九月-2005 |
摘要: | Multidisk vertical allocation (MDVA) problems intend to find an allocation of relations to disks such that the expected query cost is minimized. Recently, Chang [European Journal of Operational Research 143 (2002) 210] modified Rotem et al.'s [IEEE Transactions on Knowledge and Data Engineering 5 (1993) 882] method for solving an MDVA problem using a smaller number of binary variables. Chang's method however is unable to treat MDVA problems with possible replication of relations. This paper proposes another method to solve MDVA problems, which is more effective than Rotem et al.'s and is able to treat replication problems insolvable by Chang's method. (c) 2004 Elsevier B.V. All rights reserved. |
URI: | http://dx.doi.org/10.1016/j.ejor.2004.03.010 http://hdl.handle.net/11536/13264 |
ISSN: | 0377-2217 |
DOI: | 10.1016/j.ejor.2004.03.010 |
期刊: | EUROPEAN JOURNAL OF OPERATIONAL RESEARCH |
Volume: | 165 |
Issue: | 3 |
起始頁: | 835 |
結束頁: | 842 |
顯示於類別: | 期刊論文 |