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506 results on '"Szmidt, Eulalia"'

501. Various Kinds of Ordinal Sums of Fuzzy Implications

Author

Drygaś, Paweł, Król, Anna, Kacprzyk, Janusz, Series editor, Atanassov, Krassimir T., editor, Castillo, Oscar, editor, Krawczak, Maciej, editor, Melin, Patricia, editor, Sotirov, Sotir, editor, Sotirova, Evdokia, editor, Szmidt, Eulalia, editor, De Tré, Guy, editor, and Zadrożny, Sławomir, editor

Published
2016
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502. On Partially Ordered Product Spaces

Author

Jaroslav, Považan, Beloslav, Riečan, Kacprzyk, Janusz, Series editor, Atanassov, Krassimir T., editor, Castillo, Oscar, editor, Krawczak, Maciej, editor, Melin, Patricia, editor, Sotirov, Sotir, editor, Sotirova, Evdokia, editor, Szmidt, Eulalia, editor, De Tré, Guy, editor, and Zadrożny, Sławomir, editor

Published
2016
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503. Paired Structures, Imprecision Types and Two-Level Knowledge Representation by Means of Opposites

Author

Tinguaro Rodríguez, J., Franco, Camilo, Gómez, Daniel, Montero, Javier, Kacprzyk, Janusz, Series editor, Atanassov, Krassimir T., editor, Castillo, Oscar, editor, Krawczak, Maciej, editor, Melin, Patricia, editor, Sotirov, Sotir, editor, Sotirova, Evdokia, editor, Szmidt, Eulalia, editor, De Tré, Guy, editor, and Zadrożny, Sławomir, editor

Published
2016
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506. Bipolarity in the querying of temporal databases

Author

Billiet, Christophe, Pons Frías, José Enrique, Pons, Olga, De Tré, Guy, Atanassov, Krassimir, Homenda, Wladyslaw, Hryniewicz, Olgierd, Kacprzyk, Janusz, Krawczak, Maciej, Nahorski, Zbigniew, Szmidt, Eulalia, and Zadrozny, Slawomir

Subjects
Valid-time Relation, Technology and Engineering, Uncertainty, InformationSystems_DATABASEMANAGEMENT, Bipolar Querying, Temporal Databases, Ill-known Time Intervals
Abstract

A database represents part of reality by containing data representing properties of real objects or concepts. To many real-world concepts or objects, time is an essential aspect and thus it should often be (implicitly) represented by databases, making these temporal databases. However, like other data, the time-related data in such databases may also contain imperfections such as uncertainties. One of the main purposes of a database is to allow the retrieval of information or knowledge deduced from its data, which is often done by querying the database. Because users may have both positive and negative preferences, they may want to query a database in a bipolar way. Moreover, their demands may have some temporal aspects. In this paper, a novel technique is presented, to query a valid-time relation containing uncertain valid-time data in a heterogeneously bipolar way, allowing every elementary query constraint a specific temporal constraint.

Published
2013

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