Attribute Reduction in Property Oriented Concept Lattices of Formal Contexts and Formal Decision Contexts
نویسندگان
چکیده
منابع مشابه
Rule Acquisition in Formal Decision Contexts Based on Formal, Object-Oriented and Property-Oriented Concept Lattices
Rule acquisition is one of the main purposes in the analysis of formal decision contexts. Up to now, there have been several types of rules in formal decision contexts such as decision rules, decision implications, and granular rules, which can be viewed as ∧-rules since all of them have the following form: "if conditions 1,2,…, and m hold, then decisions hold." In order to enrich the existing ...
متن کاملNote on formal contexts of generalized one - sided concept lattices ∗
Generalized one-sided concept lattices represent one of the conceptual data mining methods, suitable for an analysis of object-attribute models with the different types of attributes. It allows to create FCA-based output in form of concept lattice with the same interpretation of concept hierarchy as in the case of classical FCA. The main aim of this paper is to investigate relationship between ...
متن کاملA Novel Approach to Attribute Reduction in Formal Concept Lattices
The theory of concept lattice is an efficient tool for knowledge representation and knowledge discovery. One of the key problems of knowledge discovery is attribute reduction. This paper presents a novel approach to attribute reduction in formal concept lattices. The approach employs all the extents of the meet-irreducible elements in the lattice. Each of them determines a family of attribute s...
متن کاملFormal Contexts, Formal Concept Analysis, and Galois Connections
Formal concept analysis (FCA) is built on a special type of Galois connections called polarities. We present new results in formal concept analysis and in Galois connections by presenting new Galois connection results and then applying these to formal concept analysis. We also approach FCA from the perspective of collections of formal contexts. Usually, when doing FCA, a formal context is fixed...
متن کاملOn rule acquisition in decision formal contexts
Rule acquisition is one of the main purposes in the analysis of decision formal contexts. Up to now, there have existed several types of rules (e.g., the decision rules and the granular rules) in decision formal contexts. This study firstly proposes a new algorithm with less time complexity for deriving the non-redundant decision rules from a decision formal context. Then, we invesigate decisio...
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: International Journal of Database Theory and Application
سال: 2016
ISSN: 2005-4270,2005-4270
DOI: 10.14257/ijdta.2016.9.9.04