Database querying in the presence of suspect values

Publication Type:
Conference Proceeding
Communications in Computer and Information Science, 2015, 539 pp. 44 - 51
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© Springer International Publishing Switzerland 2015. In this paper, we consider the situation where a database may contain suspect values, i.e. precise values whose validity is not certain. We propose a database model based on the notion of possibilistic certainty to deal with such values. The operators of relational algebra are extended in this framework. A very interesting aspect is that queries have the same data complexity as in a classical database context.
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