International Journal of Man-Machine Studies
On the reduction of knowledge representation systems
6th Internation Workshop Vol. 1 on Expert Systems & Their Applications
Communicating between information systems
Information Sciences: an International Journal
Some Invariant Properties of Fuzzy Information Systems under Homomorphism
RSKT '09 Proceedings of the 4th International Conference on Rough Sets and Knowledge Technology
Homomorphisms between relation information systems
RSKT'07 Proceedings of the 2nd international conference on Rough sets and knowledge technology
Granulation as a privacy protection mechanism
Transactions on rough sets VII
Some improved results on communication between information systems
Information Sciences: an International Journal
Covering rough sets based on neighborhoods: An approach without using neighborhoods
International Journal of Approximate Reasoning
Data compression with homomorphism in covering information systems
International Journal of Approximate Reasoning
Arrow decision logic for relational information systems
Transactions on Rough Sets V
Communication between information systems with covering based rough sets
Information Sciences: an International Journal
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New concepts of knowledge representation systems, like object and attribute factors, connectedness relations, and seven kinds of homomorphisms of knowledge representation systems are introduced. Some properties of these homomorphisms, related to factors and connectedness, are shown. The theory presented here may be used to aggregate sets of objects, attributes, and descriptors of the original system in order to produce a simpler system, which preserves the description function of the original system. In some applications, the new system is sufficient representation of the original one.