International Journal of Man-Machine Studies
Variable precision rough set model
Journal of Computer and System Sciences
Advances in the Dempster-Shafer theory of evidence
Tolerance approximation spaces
Fundamenta Informaticae - Special issue: rough sets
An inquiry into anatomy of conflicts
Information Sciences: an International Journal
Rough set methods and applications
Rough Sets: Theoretical Aspects of Reasoning about Data
Rough Sets: Theoretical Aspects of Reasoning about Data
A comparative study of some generalized rough approximations
Fundamenta Informaticae
RSFDGrC '99 Proceedings of the 7th International Workshop on New Directions in Rough Sets, Data Mining, and Granular-Soft Computing
Satisfiability of Formulas from the Standpoint of Object Classification: The RST Approach
Fundamenta Informaticae - Concurrency Specification and Programming (CS&P)
Unit operations in approximation spaces
RSCTC'10 Proceedings of the 7th international conference on Rough sets and current trends in computing
Gauges, pregauges and completions: some theoretical aspects of near and rough set approaches to data
RSKT'11 Proceedings of the 6th international conference on Rough sets and knowledge technology
Nearness approximation space based on axiomatic fuzzy sets
International Journal of Approximate Reasoning
Satisfiability judgement under incomplete information
Transactions on Rough Sets XI
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In this article, we aim at extension of similarity-based approximation spaces to the case, where both similarity and dissimilarity of objects are taken into account. Apart from the wellknown notions of lower rough approximation, upper rough approximation, and variable-precision positive regions of concepts, adapted to our case, the notions of exterior, possibly negative region, and ignorance region of concepts are introduced and investigated.