E. Bertino, B. Catania and L. Chiesa: "Definition and Analysis of Index Organizations for Object-oriented Database Systems", Information Systems, Vol.23, No.2, pp.65-108, 1998. Home/Search Document Details and Download
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Signature-based Structures for Objects with Set-valued.. - Tousidou, Bozanis.. (2002) (Correct)
....of Cyprus, Nicosia 1678, Cyprus. 0306 4379 02 see front matter r 2002 Published by Else ierSrv. q Ltd. PII:S 0306 4379(01)00047 3 During the last few years, several indices have been proposed in order to support the manipulation of object oriented and object relational data models. In [1 5] the presented structures manage to cope with path expressions, which are fundamental in object oriented databases, but none of them has dealt with data that contain set valued attributes. Consequently, these structures cannot readily deal with the above kind of queries. Due to this need, the use ....
E. Bertino, B. Catania, L. Chiesa, Definition and analysis of index organizations for object-oriented database systems, Inf.
Designing an Object-Relational Data Warehousing.. - Eder, Frank.. (2000) (Correct)
....are of arbitrary complex structure and behavior. Firstly, the optimization of object oriented queries may be performed by means of inverse methods [6] materialized methods [1, 9, 11] Secondly, different kinds of index structures, defined on complex attributes and methods have to be applied [2], and are still under the development. Next, data are processed in parallel. Special attention is being paid to object oriented views that are important mechanisms assuring logical data independence, providing mechanism for data hiding and security, simplification of a database schema, and ....
Bertino E., Catania B., Chiesa L.: Definition and Analysis of Index Organizations for Object-Oriented Database Systems. Information Systems, Vol.23, No.2, pp. 65-108,
Definition And Analysis Of Index Organizations For.. - Bertino, Catania, Chiesa (1998) (3 citations) Self-citation (Bertino Catania Chiesa) (Correct)
....of the path index, firstly defined in [6] is proposed to deal with multi valued attributes and instances with null attribute values. Then, an analytical cost model for the extended version of the path index is presented. The cost model is finally used, together with the cost models presented in [2], to compare the various index costs, with respect to storage, retrieval, delete and insert operations. The results show that traditional techniques have better performance with respect to storage, delete and insert costs, whereas integrated techniques have lowest costs for retrieval. Copyright c ....
....with null values, multi valued attributes. 3. The development of an analytical cost model for the extended version of the path index, which is one of the main original contributions of this paper. The cost model of the nested inherited index can be found in [4] whereas the extended version [2] of this paper includes all the complete cost models for all the indexing techniques. 4. An extensive comparison of the above four techniques under the above mentioned cost model. The remainder of this paper is organized as follows. Section 2 introduces some preliminary definitions and notions. ....
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E. Bertino, B. Catania, and L. Chiesa. Definition and Analysis of Index Organization for Object-Oriented Database Systems. Technical Report 162-96, University of Milano, Italy, 1996.
R-Trees Have Grown Everywhere - Manolopoulos, Nanopoulos.. (Correct)
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E. Bertino, B. Catania and L. Chiesa: "Definition and Analysis of Index Organizations for Object-oriented Database Systems", Information Systems, Vol.23, No.2, pp.65-108, 1998.
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