Abstract
A rule in a Deterministic Information System (DIS) is often defined by an implication τ such that both support(τ) ≥ α and accuracy(τ) ≥ β hold for the threshold values α and β. In the previous work, we focused on the information incompleteness in DISs, and investigated rule generation in Non-deterministic Information Systems (NISs). We also proposed NIS-Apriori algorithm for this rule generation. In this paper, we consider DISs with missing values, which may be known as Incomplete Information Systems (IISs). A rule in a DIS is extended to either a rule in the lower system or a rule in the upper system in each DIS with missing values. NIS-Apriori algorithm is applied to generating such rules.
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Sakai, H., Nakata, M., Ślęzak, D. (2010). The Lower and the Upper Systems of Rules in Tables with Missing Values. In: Zhang, Y., Cuzzocrea, A., Ma, J., Chung, Ki., Arslan, T., Song, X. (eds) Database Theory and Application, Bio-Science and Bio-Technology. BSBT DTA 2010 2010. Communications in Computer and Information Science, vol 118. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-17622-7_14
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DOI: https://doi.org/10.1007/978-3-642-17622-7_14
Publisher Name: Springer, Berlin, Heidelberg
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