Evaluating XML-Extended OLAP Queries Based on a Physical Algebra

Xuepeng Yin; Torben Bach Pedersen

Evaluating XML-Extended OLAP Queries Based on a Physical Algebra

Bidragets oversatte titel: Evaluering af XML-udvidede OLAP forespørgsler baseret på en fysisk algebra

Xuepeng Yin, Torben Bach Pedersen

Institut for Datalogi

Publikation: Bidrag til bog/antologi/rapport/konference proceeding › Konferenceartikel i proceeding › Forskning

20 Citationer (Scopus)

Abstract

In today's OLAP systems, integrating fast changing data, e.g., stock quotes, physically into a cube is complex and time-consuming.The widespread use of XML makes it very possible that this data is available in XML format on the WWW. Thus, making XML data logically federated with OLAP systems is desirable. In this paper, we extend previous work on the logical federation of OLAP and XML data sources by presenting a simplified query semantics,a physical query algebra and a robust OLAP-XML query engine.Performance experiments with a prototypical implementation suggest that the performance for OLAP-XML federations is comparable to queries on physically integrated data.

Bidragets oversatte titel	Evaluering af XML-udvidede OLAP forespørgsler baseret på en fysisk algebra
Originalsprog	Engelsk
Titel	Proceedings of the seventh International Workshop on Data Warehousing and OLAP
Forlag	Association for Computing Machinery
Publikationsdato	2004
Sider	73-82
ISBN (Trykt)	1-58113-977-2
Status	Udgivet - 2004
Begivenhed	DOLAP 2004, ACM Seventh International Workshop on Data Warehousing and OLAP - Washington DC, USA Varighed: 11 nov. 2004 → 12 nov. 2004 Konferencens nummer: 7

Konference

Konference	DOLAP 2004, ACM Seventh International Workshop on Data Warehousing and OLAP
Nummer	7
Land/Område	USA
By	Washington DC
Periode	11/11/2004 → 12/11/2004

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Citationsformater

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title = "Evaluating XML-Extended OLAP Queries Based on a Physical Algebra",

abstract = "In today's OLAP systems, integrating fast changing data, e.g., stock quotes, physically into a cube is complex and time-consuming.The widespread use of XML makes it very possible that this data is available in XML format on the WWW. Thus, making XML data logically federated with OLAP systems is desirable. In this paper, we extend previous work on the logical federation of OLAP and XML data sources by presenting a simplified query semantics,a physical query algebra and a robust OLAP-XML query engine.Performance experiments with a prototypical implementation suggest that the performance for OLAP-XML federations is comparable to queries on physically integrated data.",

keywords = "OLAP, XML, data integration, query semantics, physical algebra",

author = "Xuepeng Yin and Pedersen, {Torben Bach}",

year = "2004",

language = "English",

isbn = "1-58113-977-2",

pages = "73--82",

booktitle = "Proceedings of the seventh International Workshop on Data Warehousing and OLAP",

publisher = "Association for Computing Machinery",

address = "United States",

note = "DOLAP 2004, ACM Seventh International Workshop on Data Warehousing and OLAP ; Conference date: 11-11-2004 Through 12-11-2004",

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T1 - Evaluating XML-Extended OLAP Queries Based on a Physical Algebra

AU - Yin, Xuepeng

AU - Pedersen, Torben Bach

N1 - Conference code: 7

PY - 2004

Y1 - 2004

N2 - In today's OLAP systems, integrating fast changing data, e.g., stock quotes, physically into a cube is complex and time-consuming.The widespread use of XML makes it very possible that this data is available in XML format on the WWW. Thus, making XML data logically federated with OLAP systems is desirable. In this paper, we extend previous work on the logical federation of OLAP and XML data sources by presenting a simplified query semantics,a physical query algebra and a robust OLAP-XML query engine.Performance experiments with a prototypical implementation suggest that the performance for OLAP-XML federations is comparable to queries on physically integrated data.

AB - In today's OLAP systems, integrating fast changing data, e.g., stock quotes, physically into a cube is complex and time-consuming.The widespread use of XML makes it very possible that this data is available in XML format on the WWW. Thus, making XML data logically federated with OLAP systems is desirable. In this paper, we extend previous work on the logical federation of OLAP and XML data sources by presenting a simplified query semantics,a physical query algebra and a robust OLAP-XML query engine.Performance experiments with a prototypical implementation suggest that the performance for OLAP-XML federations is comparable to queries on physically integrated data.

KW - OLAP

KW - XML

KW - data integration

KW - query semantics

KW - physical algebra

M3 - Article in proceeding

SN - 1-58113-977-2

SP - 73

EP - 82

BT - Proceedings of the seventh International Workshop on Data Warehousing and OLAP

PB - Association for Computing Machinery

T2 - DOLAP 2004, ACM Seventh International Workshop on Data Warehousing and OLAP

Y2 - 11 November 2004 through 12 November 2004

ER -

Evaluating XML-Extended OLAP Queries Based on a Physical Algebra

Abstract

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