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, 16:18, 6 August 2011
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| =====4.3.4.1. Learning===== | | =====4.3.4.1. Learning===== |
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| + | <pre> |
| + | Rules in a knowledge base, as far as their effective content goes, can be obtained by any mode of inference. For example, a rule like |
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| + | B => A, "just Before it rains, the Air is cool", |
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| + | is usually induced from a consideration of many past events, as follows. |
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| + | C => B, "in Certain events, it is just Before it rains". (Case) |
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| + | C => A, "in Certain events, the Air is cool". (Fact) |
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| + | B => A, "just Before it rains, the Air is cool". (Rule) |
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| + | However, the same proposition could also be abduced as an explanation of a singular occurrence or deduced as a conclusion of a prior theory. |
| + | </pre> |
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| =====4.3.4.2. Transfer===== | | =====4.3.4.2. Transfer===== |