A probabilistic relational data model

A probabilistic relational data model

It is often desirable to represent in a database entities whose properties cannot be deterministically classified. We develop a new data model that includes probabilities associated with the values of the attributes. The notion of missing probabilities is introduced for partially specified probabili...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Barbara, Daniel, Garcia-Molina, Hector, Porter, Daryl
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Applied sciences
Computer science
control theory
systems
Deterministic Attribute
Deterministic Relation
Exact sciences and technology
Incomplete Information
Information systems. Data bases
Memory organisation. Data processing
Probability Distribution Function
Relational Database
Software
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:It is often desirable to represent in a database entities whose properties cannot be deterministically classified. We develop a new data model that includes probabilities associated with the values of the attributes. The notion of missing probabilities is introduced for partially specified probability distributions. This new model offers a richer descriptive language allowing the database to reflect more accurately the uncertain real world. Probabilistic analogs to the basic relational operators are defined and their correctness is studied.
ISSN:0302-9743
1611-3349
DOI:10.1007/BFb0022164