Extending relational algebra to handle bipolarity.
SAC'10: The 2010 ACM Symposium on Applied Computing Sierre Switzerland March, 2010(2010)
摘要
This paper presents an extension of relational algebra suited to the handling of bipolar concepts. The type of queries considered involves two parts: a first one which expresses a (possibly flexible) constraint, and a second one that corresponds to a (possibly flexible) wish. The framework considered is that of bipolar fuzzy relations where each tuple is associated with a pair of degrees in the unit interval.
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