Being taught can be faster than asking questions
Being taught can be faster than asking questions
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接受教导比提问更快
DOI：
10.1145/225298.225315
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发表时间：
1995
期刊：
影响因子：
--
通讯作者：
Y. Yin
中科院分区：
文献类型：
--
作者：
R. Rivest;Y. Yin
WF？JIO~（' th？本文通过对两种学习模式：教师自主学习和学生自主学习的研究，探讨了两种学习模式在茶艺教学中的应用。在这两个模型中，学习者试图识别一个unkuowu概念的基础上提出的概念的例子之一，一次。学习者通过即时反馈来预测每个例子是正面还是负面，目标是最大限度地减少预测错误。在教师指导学习中，范例是由教师选择的，而在自主学习中，范例是由学习者自己选择的。粗略地说，教师指导学习代表的是教师教一个班的学习者的情景，而自我指导学习代表的是聪明的学习者提出问题并自己学习的情景。对于以往研究过的概念类，教师指导学习的错误数总是大于自我指导学习的错误数。这就提出了一个问题（）。然而，人力资源教学对所有学习者都有帮助（聪明的学习者）。假设存在线索途径函数，我们构造了教师指导学习中存在最小偏差的概念图，但在自我指导学习中，教师在学习过程中的作用是最大的。
WF ?X]JIO~(’ th? l>~wt’r of teaChillg by StUdyiIlg two uu-lille learuing models: teach er-clirecteci learninE and self-dlrectecl learning. In both models, the learner tries to identify an unkuowu concept based on examples of the concept presented one at, a time. The learner predirts wheth~r each example is positive or negative with immediate feedback, and the ol)ject,ive is to minimize the uurnl)er of predict,iou mistakes. ThP examples are selected by the teacher in teacher-dlrectecl learning and hy tlhe learner itself in self-directed learning. R,oughly, teacher-directed learning represents the scenario in which a teacher teaches a class of learners, and self-directed learning represents the scenario in which a smart learnerasks questious and learns by itself. For all previolmly studied concept classes, the rnirrimum numl)er of mistalws in teacller-ciirectf ecl learning is always larger than that, in self-directed learning. This raises an mtermting question [.)t’ whrt, hrr teaching is helpful for all learners mrlu(ling the smart learner’. Assuming the existence of clue-way functioms, we construct com cept clahses for which the miuimum nurnher of mislakes is hnear in teacher-directed learning I,ut sllI>rrlJolyllorlllal m self-directed learning, cler~lc~llst,rt~tillg the power of a helpful teacher in a Iearmng process.