A statistical approach to incomplete information in database systems
- 1 September 1982
- journal article
- Published by Association for Computing Machinery (ACM) in ACM Transactions on Database Systems
- Vol. 7 (3) , 470-488
- https://doi.org/10.1145/319732.319747
Abstract
There are numerous situations in which a database cannot provide a precise answer to some of the questions that are posed. Sources of imprecision vary and include examples such as recording errors, incompatible scaling, and obsolete data. In many such situations, considerable prior information concerning the imprecision exists and can be exploited to provide valuable information for queries to which no exact answer can be given. The objective of this paper is to provide a framework for doing so.Keywords
This publication has 2 references indexed in Scilit:
- On semantic issues connected with incomplete information databasesACM Transactions on Database Systems, 1979
- The design and implementation of INGRESACM Transactions on Database Systems, 1976