RT journal article T1 Handling incomplete information in formal concept analysis - a possibilistic approach A1 Chacón Gómez, Fernando A1 Cornejo Piñero, María Eugenia A1 Dubois, Didier A1 Medina Moreno, Jesús A1 Prade, Henri A2 Matemáticas K1 Possibility Theory K1 Formal Concept Analysis K1 Attribute Implications K1 Incomplete Information AB It is very common to find databases with missing information. Therefore, it is important todevelop formal tools. This paper focuses on the contribution of Formal Concept Analysis tothis fundamental goal. For this purpose, five forms of attribute implications are extracted fromincomplete contexts, which are analyzed from two different approaches. The first approachfollows the traditional recipe taking into account the well-known characterizations about thevalidity of attribute implications. The second approach goes further by considering possibilitytheory. Specifically, possibility and necessity measures are defined in order to establish theplausibility and certainty of relevant statements pertaining to an incomplete context. PB Springer Nature SN 1807-0302 YR 2026 FD 2026 LK http://hdl.handle.net/10498/39559 UL http://hdl.handle.net/10498/39559 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 10-may-2026