Attribute reduction in interval-valued information systems based on information entropies
نویسندگان
چکیده
منابع مشابه
Attribute Reduction in Interval and Set-Valued Decision Information Systems
In many practical situation, some of the attribute values for an object may be interval and set-valued. This paper introduces the interval and set-valued information systems and decision systems. According to the semantic relation of attribute values, interval and set-valued information systems can be classified into two categories: disjunctive (Type 1) and conjunctive (Type 2) systems. In this...
متن کاملAttribute reduction in tolerance information systems based on evidence theory
Attribute reduction is one of the most important problems in rough set theory. This paper deals with attribute reduction in tolerance information systems based on Dempster-shafter theory of evidence. The concepts of plausibility consistent set and belief consistent set are introduced in tolerance information systems. Furthermore, relative plausibility reduction and belief reduction are discusse...
متن کاملAttribute Reduction in Incomplete Information Systems
Through changing the equivalence relation of objects to reflexive and symmetric binary relation in the incomplete information system, a cumulative variable precision rough set model is proposed. The basic properties of β lower and β upper cumulative approximation operators are investigated. β upper, and β lower distribution consistent set are explored for defining β upper, and β lower distribut...
متن کاملKnowledge Reduction in Lattice-Valued Information Systems with Interval-Valued Intuitionistic Fuzzy Decision
In this paper, associated with dominance relation, lattice theory and intuitionistic fuzzy sets theory, the lattice-valued information systems with interval-valued intuitionistic fuzzy decision are proposed and some of its properties are investigated carefully. And, an approach to knowledge reduction based on discernibility matrix in consistent latticevalued information systems with interval-va...
متن کاملDominance-based rough set theory over interval-valued information systems
This paper proposes a new generalization of classical real-valued information systems, that is, interval-valued information systems. By defining an interval-valued dominance relation on a condition attribute, a rough set model and attribute reduction are established over interval-valued information systems. Moreover, several interesting properties are investigated by constructive approach. Furt...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Frontiers of Information Technology & Electronic Engineering
سال: 2016
ISSN: 2095-9184,2095-9230
DOI: 10.1631/fitee.1500447