Invention Grant
- Patent Title: Multi-granularity hierarchical aggregate selection based on update, storage and response constraints
- Patent Title (中): 基于更新,存储和响应约束的多粒度分层聚合选择
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Application No.: US13169514Application Date: 2011-06-27
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Publication No.: US08719295B2Publication Date: 2014-05-06
- Inventor: Yuan-Chi Chang , Lawrence Koved , Christian A. Lang , Igor Sominsky
- Applicant: Yuan-Chi Chang , Lawrence Koved , Christian A. Lang , Igor Sominsky
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Ryan, Mason & Lewis, LLP
- Agent Anne V. Dougherty
- Main IPC: G06F7/00
- IPC: G06F7/00 ; G06F17/30

Abstract:
Techniques are disclosed for multi-granularity hierarchical aggregate selection based on update, storage and response constraints. For example, for a temporal hierarchy of aggregation statistics associated with a plurality of database records, wherein the temporal hierarchy comprises two or more aggregation statistics levels and each level has a different temporal granularity associated therewith, a method comprises iteratively modifying the temporal hierarchy to at least one of: (a) minimize a storage usage cost while satisfying a temporal hierarchy update constraint and a query response time constraint; (b) reduce a temporal hierarchy update time and a query response time while satisfying a storage usage constraint; and (c) minimize a query response time for frequently applied queries that do not shift in time while satisfying the storage usage constraint, wherein the resulting temporal hierarchy that achieves at least one of (a), (b) and (c) is identified as an optimal temporal hierarchy.
Public/Granted literature
- US20120330996A1 MULTI-GRANULARITY HIERARCHICAL AGGREGATE SELECTION BASED ON UPDATE, STORAGE AND RESPONSE CONSTRAINTS Public/Granted day:2012-12-27
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