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IEEE Transactions on Knowledge and Data Engineering > 2011 > 23 > 8 > 1244 - 1260
IEEE Intelligent Systems > 2008 > 23 > 5 > 50 - 57
IEEE Intelligent Systems > 2006 > 21 > 6 > 11 - 20
IEEE Intelligent Systems > 2006 > 21 > 6 > 38 - 46
IEEE Intelligent Systems > 2006 > 21 > 6 > 21 - 28