Flexible Databases Supporting Imprecision and UncertaintyGloria Bordogna, Giuseppe Psaila A more intuitive, easy and powerful representation, access, and retrieval of information is nowadays a necessary feature of information systems that have become a common instrument for a wide class of users in di?erent areas and for the most diversi?ed tasks. The management of imprecision and uncertainty in databases has become an important research area, which has known an impressive growth. This is testi?ed the increasing number of special sessions in international conferences and workshops devoted to this theme. Generally, this topic matured and developed independently within both the traditional database community and the community of researchers on fuzzy sets, and only very recently some joint initiatives have been undertaken. Since the Workshop titled “Supporting Imprecision and Uncertainty in Flexible DataBases” we organized within the DEXA Conference in Zaragoza on August 2004, our intent is to bring together a wide community of - searchers in the ?eld of databases, Information Retrieval, Spatial Information Systems, knowledge representation and multimedia, to share experiences and methods concerning the management of uncertainty and imprecision in da- bases. This volume collects a selected number of contributions of well known pioneerresearcheswho,atvariouslevels,proposedmodelsandtheapplication ofmethodstorepresentandmanageuncertaintyandimprecisionindatabases. Many approaches have been proposed in the literature on the modelling of uncertainty and imprecision in databases. To o?er a panoramic view of the methods proposed so far to students, researchers and insightful practitioners, we included in the volume survey chapters on classic topics such as ?exible querying in databases, and database models to represent imperfect data. |
Contents
Department of Computer Science | 41 |
VacuityOriented Generalized YesNo Queries Addressed | 55 |
On the Applicability of Extended Possibilistic Truth Values | 74 |
Guy de Tré Rita de Caluwe 75 | 91 |
Modeling Fuzzy Information in the EER and Nested | 123 |
Querying Contradictory Databases by Taking into Account | 148 |
Database Integrations in Distributed Enterprise Information | 169 |
Integrating Data Doubtfully | 193 |
An Overview of Imperfection Representation | 219 |
A Synopsis based Approach for XML Fast Approximate | 241 |
Maximum Entropy Inference for Geographical | 269 |
Storage and Manipulation of Vague Spatial Objects Using | 292 |
Arta Dilo Pieter Bos Pawalai Kraipeerapun and Rolf A deBy 293 | 323 |
Other editions - View all
Flexible Databases Supporting Imprecision and Uncertainty Gloria Bordogna,Giuseppe Psaila No preview available - 2006 |
Flexible Databases Supporting Imprecision and Uncertainty Gloria Bordogna,Giuseppe Psaila No preview available - 2009 |
Flexible Databases Supporting Imprecision and Uncertainty Gloria Bordogna,Giuseppe Psaila No preview available - 2014 |
Common terms and phrases
aggregation algebra answer applications approach associated assume attribute belongs boundary called chapter classes completely computed condition consider consists constraints containing corresponding crisp data model database model defined Definition denoted depending described document domain domain calculus elements engine entities equal equivalent evaluation example exist expressed extended fact flexible flight formal formula function fuzzy relational fuzzy set given imperfection important imprecise integration International interpretation knowledge language layer linguistic logic matching means measures membership nested nodes objects operator person possibilistic possibility distribution possible preference presentation probabilistic probability proposed proposition query reasoning region relational databases relationships represent representation respectively result satisfied schema selection semantics shows similar simple situation spatial specific stored structure synopsis Systems Table theory triangle tuples uncertainty vague values
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