RT Book, Section T1 Paired Structures, Imprecision Types and Two-Level Knowledge Representation by Means of Opposites A1 Rodríguez González, Juan Tinguaro A1 Franco De Los Ríos, Camilo A. A1 Gómez González, Daniel A1 Montero De Juan, Francisco Javier A2 Krassimir T., Atanassov A2 Castillo, Oscar A2 Kacprzyk, Janusz A2 Krawczak, Maciej A2 Melin, Patricia A2 Sotirov, Sotir A2 Sotirova, Evdokia A2 Szmidt, Eulalia A2 De Tré, Guy A2 Zadrozny, Slawomir AB Opposition-based models are a current hot-topic in knowledge representation. The point of this paper is to suggest that opposition can be in fact introduced at two different levels, those of the predicates of interest being represented (as short/tall) and of the logical references (true/false) used to evaluate the verification of the former. We study this issue by means of the consideration of different paired structures at each level. We also pay attention at how different types of fuzziness may be introduced in these paired structures to model imprecision and lack of knowledge. As a consequence, we obtain a unifying framework for studying the relationships between different knowledge representation models and different kinds of uncertainty. PB Springer SN 978-3-319-26211-6 YR 2016 FD 2016 LK https://hdl.handle.net/20.500.14352/24707 UL https://hdl.handle.net/20.500.14352/24707 NO Tinguaro Rodríguez, J., Franco, C., Gómez, D., Montero, J.: Paired Structures, Imprecision Types and Two-Level Knowledge Representation by Means of Opposites. En: Atanassov, K.T., Castillo, O., Kacprzyk, J., Krawczak, M., Melin, P., Sotirov, S., Sotirova, E., Szmidt, E., De Tré, G., y Zadrożny, S. (eds.) Novel Developments in Uncertainty Representation and Processing. pp. 3-15. Springer International Publishing, Cham (2016) DS Docta Complutense RD 16 abr 2025