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  1. Chapter and Conference Paper

    An Adjusted Apriori Algorithm to Itemsets Defined by Tables and an Improved Rule Generator with Three-Way Decisions

    The NIS-Apriori algorithm, which is extended from the Apriori algorithm, was proposed for rule generation from non-deterministic information systems and implemented in SQL. The realized system handles the conc...

    Zhiwen Jian, Hiroshi Sakai, Takuya Ohwa, Kao-Yi Shen, Michinori Nakata in Rough Sets (2020)

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    Chapter and Conference Paper

    NIS-Apriori Algorithm with a Target Descriptor for Handling Rules Supported by Minor Instances

    For each implication \(\tau : Condition\_part\Rightarrow Decision\_part\) defined in table data sets, we se...

    Hiroshi Sakai, Kao-Yi Shen, Michinori Nakata in Integrated Uncertainty in Knowledge Modell… (2019)

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    Chapter and Conference Paper

    Multi-graded Hybrid MRDM Model for Assisting Financial Performance Evaluation Decisions: A Preliminary Work

    This study proposes a novel multiple rule-base decision-making (MRDM) model to transform the current bipolar model into a multi-graded one based on the theoretical foundation of rough set approximations. In th...

    Kao-Yi Shen, Hiroshi Sakai, Gwo-Hshiung Tzeng in Rough Sets (2019)

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    Chapter and Conference Paper

    Stable Rules Evaluation for a Rough-Set-Based Bipolar Model: A Preliminary Study for Credit Loan Evaluation

    The modern business environment is full of uncertain and imprecise circumstances that require decision makers (DMs) to conduct informed and circumspect decisions. In this regard, rough set theory (RST) has bee...

    Kao-Yi Shen, Hiroshi Sakai, Gwo-Hshiung Tzeng in Rough Sets (2017)

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    Chapter and Conference Paper

    Knowledge Supported Refinements for Rough Granular Computing: A Case of Life Insurance Industry

    Dominance-based rough set approach (DRSA) has been adopted in solving various multiple criteria classification problems with positive outcomes; its advantage in exploring imprecise and vague patterns is especi...

    Kao-Yi Shen, Gwo-Hshiung Tzeng in Rough Sets, Fuzzy Sets, Data Mining, and G… (2015)

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    Chapter and Conference Paper

    Decision Rules-Based Probabilistic MCDM Evaluation Method – An Empirical Case from Semiconductor Industry

    Dominance-based rough set approach has been widely applied in multiple criteria classification problems, and its major advantage is the inducted decision rules that can consider multiple attributes in differen...

    Kao-Yi Shen, Gwo-Hshiung Tzeng in Rough Sets and Intelligent Systems Paradigms (2014)