Dynamic performance optimization mechanism for parallel object-oriented database programming languages

Data mining discovers knowledge and useful information from large amounts of data stored in databases. With the increasing popularity of object-oriented database system in advanced database applications, it is significantly important to study the data mining methods for object-oriented database. This paper proposes that higher-order logic programming languages and techniques is very suitable for object-oriented data mining, and presents a framework for object-oriented data mining based on higher-order logic programming. Such a framework is inductive logic programming which adopts higher-order logic programming language Escher as knowledge representation formalism. In addition, Escher is a generalization of the attribute-value representation, thus many higher-order logic learners under this framework can be upgraded directly from corresponding propositional learners.

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An Eclectic Method for Object Oriented Database Design

10.21236/ada256439 ◽

1992 ◽

Author(s):

Douglas E. Dyer ◽

Mark A. Roth

Keyword(s):

Object Oriented ◽

Database Design ◽

Object Oriented Database

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Efficient Storage of Large Volume Spatial and Temporal Point-Data in an Object-Oriented Database

10.21236/ada406876 ◽

2002 ◽

Author(s):

David V. Oliver ◽

Roy V. Ladner ◽

Frank P. McCreedy ◽

Ruth A. Wilson

Keyword(s):

Large Volume ◽

Object Oriented ◽

Efficient Storage ◽

Point Data ◽

Object Oriented Database

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Advances in Object-Oriented Database Systems

10.1007/978-3-642-57939-4 ◽

1994 ◽

Cited By ~ 12

Keyword(s):

Object Oriented ◽

Database Systems ◽

Object Oriented Database

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Structure Sensitivity Analysis and Dynamic Performance Optimization of Marine Gearbox

Volume 10: 2017 ASME International Power Transmission and Gearing Conference ◽

10.1115/detc2017-67072 ◽

2017 ◽

Author(s):

Tengjiao Lin ◽

Daokun Xie ◽

Ziran Tan ◽

Bo Liu

Keyword(s):

Sensitivity Analysis ◽

Performance Optimization ◽

Optimization Design ◽

Dynamic Performance ◽

Structure Sensitivity ◽

Superposition Method ◽

Structure Parameters ◽

Analysis Model ◽

Vibration Acceleration ◽

Response Optimization

The aim of this paper is to investigate the influence of structure parameters on the vibration characteristics and improve the dynamic performance of marine gearbox. A finite element model was established to solve the dynamic response by using modal superposition method. Based on the theory of multi-objective optimization design, the structure sensitivity analysis model of marine gearbox was established, which takes the structure parameters of the housing as design variables. The modal and response sensitivity was obtained by using the optimal gradient method. According to the results of sensitivity analysis, a modal and response optimization model of marine gearbox was established. The objective was to avoid natural frequencies from the excitation frequencies and minimize the root mean square of vibration acceleration of the evaluating points on the surface of housing. Then the modal optimization and response optimization of gearbox were carried out by using zero-order and first-order optimization method. The results indicate that the dynamic optimization of the gearbox can be achieved. After optimization, the amplitude of vibration acceleration of the evaluating points on the housing surface has been reduced and the resonance of marine gearbox can be avoided.

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