Combining fuzzy information from multiple systems (extended abstract)
Ronald Fagin · 1996
In a traditional database system, the result of a query is a set of values (those values that satisfy the query).In other data servers, such as a system with queries baaed on image content, or many text retrieval systems, the result of a query Permission to make digital{hard copies of all or part of this material for persnrral or classroom use is granted without fee provided that the copies are not made or distributed for profit or commercial advantage, the copy- right notice, the title of the publication and its date appear, and notice is given that copyright ia by permission of the ACM, Inc.To copy otherwise, to repubtish, to post on servers or to redistribute to lists, requires specific