Abstract
Boolean Contact Algebras (BCAs) are an appropriate algebraic approach to mereotopological structures. They are Boolean algebras equipped with a binary contact relation C indicating whether two regions are considered to be in contact or not. It has been shown that BCAs with some additional properties are equivalent to the well-known Region Connection Calculus (RCC) of Randell et al. In this paper we show that the contact relation of a BCA gives rise to at least 35 atomic relationships between regions in any model of RCC. In addition, we provide a composition table of the corresponding relation algebra up to 31 atoms. This improves previous results that distinguished only 25 atomic relationships.
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Ghosh, M., Winter, M. (2014). Refinements of the RCC25 Composition Table. In: Höfner, P., Jipsen, P., Kahl, W., Müller, M.E. (eds) Relational and Algebraic Methods in Computer Science. RAMICS 2014. Lecture Notes in Computer Science, vol 8428. Springer, Cham. https://doi.org/10.1007/978-3-319-06251-8_23
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DOI: https://doi.org/10.1007/978-3-319-06251-8_23
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