Representation of uncertain knowledge in probabilistic OLAP model

被引：0

作者：

Kiewra, Maciej ^{[1
]}

机构：

[1] Wroclaw Univ Technol, Inst Informat Sci & Engn, PL-50370 Wroclaw, Poland

来源：

KNOWLEDGE-BASED INTELLIGENT INFORMATION AND ENGINEERING SYSTEMS, PT 2, PROCEEDINGS | 2008年 / 5178卷

关键词：

data warehouse; OLAP; knowledge management; uncertainty; probabilistic databases; multidimensional model;

D O I：

暂无

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

The probabilistic OLAP model has been presented in this paper. It permits uncertain knowledge to be represented in data warehouse systems. There are two types of uncertainty that can be expressed in this model: imprecise facts and uncertain facts. The former are facts that have occurred but their characteristics are not certain. The latter are facts whose occurrences are uncertain. Typical OLAP algebra operators (set operators, restriction, projection etc.) are included in this model.

引用

页码：89 / 96

页数：8

共 9 条

[1] OLAP over uncertain and imprecise data [J].

Burdick, Doug ;

Deshpande, Prasad M. ;

Jayram, T. S. ;

Ramakrishnan, Raghu ;

Vaithyanathan, Shivakumar .

VLDB JOURNAL, 2007, 16 (01) :123-144

[2]

Codd E. F., 1993, PROVIDING OLAP USER

[3] The cube data model: a conceptual model and algebra for on-line analytical processing in data warehouses [J].

Datta, A ;

Thomas, H .

DECISION SUPPORT SYSTEMS, 1999, 27 (03) :289-301

[4]

Delgado M, 2004, IEEE INT CONF FUZZY, P1331

[5] A probabilistic relational model and algebra [J].

Dey, D ;

Sarkar, S .

ACM TRANSACTIONS ON DATABASE SYSTEMS, 1996, 21 (03) :339-369

[6] A probabilistic multidimensional data model and algebra for OLAP in decision support systems [J].

Moole, BR .

IEEE SOUTHEASTCON 2003, PROCEEDINGS: BRIDGING THE DIGITAL DIVIDE, 2003, :18-30

[7]

PEDERSEN TB, 1999, 11 INT C SCI STAT DA, P90

[8]

PITTARELLI M, 2006, IEEE T KNOWL DATA EN, V6, P293

[9]

TIMKO I, 2005, PROBABILITY DISTRIBU

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