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Three-Way Decisions/Evidence
Method evidence record

Three-Way Decisions

Three-Way Decisions (3WD) is a decision-theoretic framework, introduced by Yiyu Yao in 2010, that partitions the universe of objects into three regions—positive (accept), negative (reject), and boundary (abstain)—using probabilistic rough set theory. Unlike binary classifiers that force every object into one of two classes, 3WD explicitly acknowledges uncertainty by allowing a third option: deferring judgment when available evidence is insufficient for a confident decision.

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Citations copied verbatim from the method’s source record. No claim-level verification is inferred from them.

Three-Way Decisions
Taxonomic method record · ml-model / soft-computing
  • Yao, Y. (2010). Three-way decisions with probabilistic rough sets. Information Sciences, 180(3), 341–353. · DOI 10.1016/j.ins.2009.09.021
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Curated claims

Claims persisted in the evidence ledger, each with its own assessment.

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Related methods

Generated from the method graph and shown as machine-suggested relations — no evidence claim is inferred.

Same method familyCase-Based Reasoningmachine-suggested · Relational suggestion, not evidence.Same method familyGranular Computingmachine-suggested · Relational suggestion, not evidence.

Evidence status

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Bibliographic sources are present. Claim-level evidence review has not been performed.

Sources

1 recorded citation, copied from the method source record.

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