3.1 简介 定义：概念学习是指从有关某个布尔函数的输入输出训练 样例中推断出该布尔函数。 3.2 概念学习任务

定义1(扩张矩阵)：已知e += 及反例矩阵NE. 对每一 j∈N, 用“死元素”*对 在NE中第j列的所有出现做代换，这 样得出的矩阵叫做正例e +在反例NE背景下的扩张矩阵。记为 EM(e+ |NE), 或简记为EM(e+ )

①事件e的各个选择符被放入PS(partial star)中,将ps中的元素按 照各种标准排序 ②在ps中保留最优的m个选择符. ③对ps中的选择符进行完备性和一致性检查,从ps中取出完备一致的描述放入 SOLUTION表中,若 SOLUTION表的大小大于参数

1. 基本概念： 定义1 （例子）. 设E=D1×D2 ×… ×Dn 是n维有穷向量空间， 其中 Dj是有穷离散符号集。E中的元素e=(V1 ,V2 , …,Vn)简 记为叫做例子。其中Vj∈Dj

Determine a star for each seed against the other seed events By appropriately modifying and selecting complexes from stars, construct a disjoint cover of E that optimizes the criterion LEF Is the termination Criterion satisfied?

一. 人工智能、专家系统、机器学习 1. 人工智能 分四个阶段：第一阶段：智力难题的求解（修道士过河） 第二阶段：自然语言理解，景物分析等 第三阶段：专家系统（推理） 人工智能走向实用

Determine a star for each seed against the other seed events By appropriately modifying and selecting complexes from stars, construct a disjoint cover of E that optimizes the criterion LEF Is the termination Criterion satisfied?

Goal Concept: A concept definition describing the concept to be learned. (It is assumed that this concept definition fails to satisfy the Operationality Criterion. Training Example: An example of the goal concept Domain Theory: A set of rules and facts to be used in explaining how the training example is an example of the goal concept

Goal Concept: A concept definition describing the concept to be learned. (It is assumed that this concept definition fails to satisfy the Operationality Criterion.) Training Example: An example of the goal concept. Domain Theory: A set of rules and facts to be used in explaining how the training example is an example of the goal concept

一. 示例学习的优化问题 (1) 最优覆盖问题(MCV)—生成具有最少数目公式的覆盖； (2) 最简公式问题(MCOMP)—生成具有最少数目选择子及属性值的公式，或极大复合；