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Simulation of clustering algorithms in OODBs in order to evaluate their performance

Jérôme Darmont, Ammar Attoui, Michel Gourgand
1997 Simulation Practice and Theory  
The aim of this paper is to propose a modelling methodology in order to evaluate the performances of different clustering policies.  ...  The actual performance evaluation was performed using simulation.  ...  The aim of this paper is to propose a methodology in order to compare the performance of the different clustering strategies that can be implemented in OODBs.  ... 
doi:10.1016/s0928-4869(96)00013-4 fatcat:o6zzgyto7jcerpinyeanv7pvty

VOODB: A Generic Discrete-Event Random Simulation Model to Evaluate the Performances of OODBs [article]

Jérôme Darmont
2007 arXiv   pre-print
The aim of this paper is to propose a generic discrete-event random simulation model, called VOODB, in order to evaluate the performances of OODBs in general, and the performances of optimization methods  ...  Benchmarking and simulation performance evaluations have been observed to be consistent, so it appears that simulation can be a reliable approach to evaluate the performances of OODBs.  ...  The VOODB simulation model could also be improved, in order to include more components influencing the performances of OODBs.  ... 
arXiv:0705.0450v1 fatcat:waq4qmfmyzczhgi7svs3owp74a

Performance Evaluation for Clustering Algorithms in Object-Oriented Database Systems [article]

Jérôme Darmont, Michel Gourgand
2007 arXiv   pre-print
The aim of this paper is to propose a modelling methodology in order to evaluate the performances of different clustering policies.  ...  The actual performance evaluation was performed using simulation.  ...  The aim of this paper is to propose a methodology in order to compare the performance of the different clustering strategies that can be implemented in OODBs.  ... 
arXiv:0705.0454v1 fatcat:ccjyal4jd5hjpajngd2epi2kvm

Performance evaluation for clustering algorithms in object-oriented database systems [chapter]

Jérôme Darmont, Ammar Attoui, Michel Gourgand
1995 Lecture Notes in Computer Science  
The aim of this paper is to propose a modelling methodology in order to evaluate the performances of different clustering policies.  ...  The actual performance evaluation was performed using simulation.  ...  The aim of this paper is to propose a methodology in order to compare the performance of the different clustering strategies that can be implemented in OODBs.  ... 
doi:10.1007/bfb0049117 fatcat:pbxrz25nbrdullw2r6wnsjvaxe

A comparison study of object-oriented database clustering techniques

Jérôme Darmont, Le Gruenwald
1996 Information Sciences  
It is widely acknowledged that a good object clustering is critical to the performance of OODBs.  ...  Simulation experiments we performed showed that the Cactis algorithm is better than the ORION algorithm and that the CK algorithm totally out-performs both other algorithms in terms of response time and  ...  Objects are clustered in their creation order. The algorithm trace is provided by Object base For our simulations, we used a random object base whose class hierarchy forms a DAG, as in [HE93] .  ... 
doi:10.1016/0020-0255(96)00119-3 fatcat:6gkxtjqzkraglgyk7avpkaxoyi

OCB: A generic benchmark to evaluate the performances of object-oriented database systems [chapter]

JérÔme Darmont, Bertrand Petit, Michel Schneider
1998 Lecture Notes in Computer Science  
We present in this paper a generic object-oriented benchmark (the Object Clustering Benchmark) that has been designed to evaluate the performances of clustering policies in object-oriented databases.  ...  OCB has been implemented in a real system (Texas, running on a Sun workstation), in order to test a specific clustering policy called DSTC. A few results concerning this test are presented.  ...  We also plan to integrate OCB into simulation models, in order to benefit from the advantages of simulation (platform independence, a priori modeling of nonimplemented research prototypes, low cost).  ... 
doi:10.1007/bfb0100994 fatcat:bpecrleuqrgu3jununlhmolzxy

OCB: A Generic Benchmark to Evaluate the Performances of Object-Oriented Database Systems [article]

Jérôme Darmont, Michel Schneider
2007 arXiv   pre-print
We present in this paper a generic object-oriented benchmark (the Object Clustering Benchmark) that has been designed to evaluate the performances of clustering policies in object-oriented databases.  ...  OCB has been implemented in a real system (Texas, running on a Sun workstation), in order to test a specific clustering policy called DSTC. A few results concerning this test are presented.  ...  We also plan to integrate OCB into simulation models, in order to benefit from the advantages of simulation (platform independence, a priori modeling of nonimplemented research prototypes, low cost).  ... 
arXiv:0705.0453v1 fatcat:lgplswxllrdl5o7ifmpx2scxzy

Benchmarking OODBs with a Generic Tool [article]

Jérôme Darmont
2016 arXiv   pre-print
We present in this paper a generic object-oriented benchmark (OCB: the Object Clustering Benchmark) that has been designed to evaluate the performances of Object-Oriented Data-bases (OODBs), and more specifically  ...  the performances of clustering policies within OODBs.  ...  ACKNOWLEDGEMENTS The authors would like to thank the editor and anonymous referees for their thoughtful criticisms and suggestions, through which this paper was greatly improved.  ... 
arXiv:1611.09172v1 fatcat:hom5lj25avfcfolsqdcohrduby

Benchmarking OODBs with a Generic Tool

Jerome Darmont, Michel Schnieder
2000 Journal of Database Management  
We present in this paper a generic object-oriented benchmark (OCB: the Object Clustering Benchmark) that has been designed to evaluate the performances of Object-Oriented Databases (OODBs), and more specifically  ...  the performances of clustering policies within OODBs.  ...  ACKNOWLEDGEMENTS The authors would like to thank the editor and anonymous referees for their thoughtful criticisms and suggestions, through which this paper was greatly improved.  ... 
doi:10.4018/jdm.2000070102 fatcat:ke5ivesvzbftxckuo3mpuss4wq

DOEF: A Dynamic Object Evaluation Framework [chapter]

Zhen He, Jérôme Darmont
2003 Lecture Notes in Computer Science  
To illustrate the capabilities of DOEF, we used it to compare the performances of four state of the art dynamic clustering algorithms.  ...  The results show that DOEF is indeed effective at determining the adaptability of each dynamic clustering algorithm to changes in access pattern.  ...  Its purpose is to allow performance evaluations of OODBs in general, and optimisation methods like clustering in particular. VOODB has been validated for real-world OODBs in a variety of situations.  ... 
doi:10.1007/978-3-540-45227-0_65 fatcat:alq6fssjzjbudizuoa2h3sh6pm

DOEF: A Dynamic Object Evaluation Framework [article]

Zhen He, Jérôme Darmont
2007 arXiv   pre-print
To illustrate the capabilities of DOEF, we used it to compare the performances of four state of the art dynamic clustering algorithms.  ...  The results show that DOEF is indeed effective at determining the adaptability of each dynamic clustering algorithm to changes in access pattern.  ...  Its purpose is to allow performance evaluations of OODBs in general, and optimisation methods like clustering in particular. VOODB has been validated for real-world OODBs in a variety of situations.  ... 
arXiv:0705.1454v1 fatcat:iszgbgpmb5agper3nypjc5ujqi

Evaluation of object-oriented database systems [chapter]

C. Huemer, G. Kappel, S. Rausch-Schott, W. Retschitzegger, A. Min Tjoa, S. Vieweg, R. Wagner
1995 Lecture Notes in Computer Science  
The goal of this chapter is to shed some light upon evaluating the features of OODBS.  ...  One reason is that the features of OODBS, both functional and performance, haven't been exposed to a broader audience.  ...  In this chapter we describe the functional and performance evaluation of OODBS.  ... 
doi:10.1007/3-540-60286-0_96 fatcat:wyrdzsgfkvcvxnznyxzmsaqlqy

Opportunistic prioritised clustering framework for improving OODBMS performance

Zhen He, Richard Lai, Alonso Marquez, Stephen Blackburn
2007 Journal of Systems and Software  
In object oriented database management systems, clustering has proven to be one of the most effective performance enhancement techniques.  ...  In our simulation study we found these algorithms outperformed two existing highly competitive dynamic algorithms in a variety of situations. A preliminary version of this paper was presented at  ...  We would also like to thank Jerome for creating OCB, the benchmark used to conduct the simulations presented in this paper.  ... 
doi:10.1016/j.jss.2006.04.017 fatcat:7ha4u4m4rbal5k3m52nxxch57u

Experiences building the open OODB query optimizer

José A. Blakeley, William J. McKenna, Goetz Graefe
1993 Proceedings of the 1993 ACM SIGMOD international conference on Management of data - SIGMOD '93  
Sewnd, it helps and forces the database system designer to consider all parts of the framework and to maintain a good btdance of choices when incorporating a new logical operator, execution algorithm,  ...  To the best of our knowledge, it is the first working object query optimizer to be based on a complete extensible optimization framework including logical algebra, execution algorithms, property enforcers  ...  Comparing the plans in Figure 9 and Figure 10 , three orders of magnitude in performance were gained.  ... 
doi:10.1145/170035.170080 dblp:conf/sigmod/BlakeleyMG93 fatcat:id76z3ctmjfabokmy4yijf5hbi

Experiences building the open OODB query optimizer

José A. Blakeley, William J. McKenna, Goetz Graefe
1993 SIGMOD record  
Sewnd, it helps and forces the database system designer to consider all parts of the framework and to maintain a good btdance of choices when incorporating a new logical operator, execution algorithm,  ...  To the best of our knowledge, it is the first working object query optimizer to be based on a complete extensible optimization framework including logical algebra, execution algorithms, property enforcers  ...  Comparing the plans in Figure 9 and Figure 10 , three orders of magnitude in performance were gained.  ... 
doi:10.1145/170036.170080 fatcat:fidz7fennnhi3izbm5czw33yoy
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