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Rule Induction Considering Implication Relations Between Conclusions
Inuiguchi, Masahiro,Inoue, Masanori,Kusunoki, Yoshifumi Korean Institute of Industrial Engineers 2011 Industrial Engineeering & Management Systems Vol.10 No.1
In rough set literatures, methods for inducing minimal rules from a given decision table have been proposed. When the decision attribute is ordinal, inducing rules about upward and downward unions of decision classes is advantageous in the simplicity of obtained rules. However, because of independent applications of the rule induction method, inclusion relations among upward/downward unions in conclusion parts are not inherited to the condition parts of obtained rules. This non-inheritance may debase the quality of obtained rules. To ensure that inclusion relations among conclusions are inherited to conditions, we propose two rule induction approaches. The performances of the proposed approaches considering the inclusion relations between conclusions are examined by numerical experiments.
Rule Induction Considering Implication Relations Between Conclusions
Masahiro Inuiguchi,Masanori Inoue,Yoshifumi Kusunoki 대한산업공학회 2011 Industrial Engineeering & Management Systems Vol.10 No.1
In rough set literatures, methods for inducing minimal rules from a given decision table have been proposed. When the decision attribute is ordinal, inducing rules about upward and downward unions of decision classes is advantageous in the simplicity of obtained rules. However, because of independent applications of the rule induction method, inclusion relations among upward/downward unions in conclusion parts are not inherited to the condition parts of obtained rules. This non-inheritance may debase the quality of obtained rules. To ensure that inclusion relations among conclusions are inherited to conditions, we propose two rule induction approaches. The performances of the proposed approaches considering the inclusion relations between conclusions are examined by numerical experiments.
Yukihiko Matsumura,Soichi Hirota,Shuhei Inoue,Takahito Inoue,Yoshifumi Kawai,Yasutaka Wada,Takashi Noguchi 한국화학공학회 2016 Korean Journal of Chemical Engineering Vol.33 No.4
Supercritical water gasification (SCWG) has attracted attention as a technology for utilizing wet biomass. We used a fluidized bed of alumina particles to prevent blockage of a SCWG reactor. A glucose solution was heated in the reactor with and without fluidized alumina particles. In the absence of alumina particles, char particles formed homogeneously in the reactor, but the use of a fluidized bed resulted in accumulation of char particles at the reactor’s exit rather than inside the reactor. Therefore, the fluidized bed was effective at preventing blockage of the reactor. However, the alumina particles did not remove deposits from the reactor’s walls. Instead, the fluidized bed caused larger char particles to form, preventing their adhesion to the reactor’s wall.