Versatile querying facilities for a dynamic object clustering model

Fung, Chi-Wai; Li, Qing

doi:10.1007/bfb0020522

Cited by 3 publications

(1 citation statement)

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“…To support general definitions and manipulations of clusters and their associated features (such as roles), higher-level language (preferably declarative) facilities are desired to be incorporated into the system. Such high level language facilities are particularly useful and important to those advanced applications requiring advanced yet efficient query capabilities [Fung95b]. This paper presents the versatile modeling features of CCM, along with the associated high-level query language facilities devised for supporting general definition and access of clusters (and roles).…”

Section: Introductionmentioning

confidence: 99%

Advanced Conceptual Clustering and Associated Querying Facilities in Object-Oriented Databases

Fung

1999

Int. J. Soft. Eng. Knowl. Eng.

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Conventional object-oriented database (OODB) systems follow a class-based approach to model real world entities and their relationships, which imposes several difficulties when more advanced "dynamic functions" are needed by the applications. One of such dynamic functions is conceptual clustering — the ability to dynamically group a set of existing objects together as a higher-level abstract object (called a "cluster"). The conceptual clustering model (CCM) that we have defined is an extension to current object-oriented models, which facilitates the modeling of dynamic, evolving, and/or ad hoc object clusters through a well-devised clustering mechanism that incorporates "roles". This paper presents the advanced features of CCM, along with its associated query language facilities devised for supporting general definition and access of clusters (and roles). An experimental prototype of the CCM has been constructed on top of a persistent object storage manager, running on a Sun4 workstation.

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Section: Introductionmentioning

confidence: 99%