Abstract
Most information we encounter on a daily basis is flooded with imprecision and uncertainty. For example, we might say that Peter is tall without having a precise definition of tallness. Peter might be 2.00m high and is, therefore, considered tall. On the other hand, there might be Jon, measuring 1.60m, which we probably do not consider to be tall. It is not clear whether Charles with a height of 1.80m is tall or not. Most likely we would say that Charles is somewhat tall, meaning that ’tall’ better describes Charles than it does Jon, but not as good as it describes Peter. To handle such kind of information, Zadeh [24] introduced the concept of fuzzy sets.
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Winter, M. (2011). Relation Algebraic Approaches to Fuzzy Relations. In: de Swart, H. (eds) Relational and Algebraic Methods in Computer Science. RAMICS 2011. Lecture Notes in Computer Science, vol 6663. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-21070-9_7
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