理学 学习理论 释 PAC learning PAC学习 PAC (Probably Approximately Correct)学习，中文翻译为概率近似正确学习，是计算学习理论中最重要的研究内容之一，由图灵奖得主Valiant [1]于1984年首先提出的学习框架。PAC学习给出了一种数学形式化刻画机器学习的框架，基于此框架，很多学习问题得以从理论上进一步探讨，如什么样的学习任务是可以学习的。
人工智能 机器学习 释文 probably approximately correct learning 概率近似正确学习
- viewport
- view ray
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- views of natural science
- views of nature
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- views on religion of analytical psychology
- views on religion of psychoanalysis school
- view stone
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- View Yangtze Tower in Nanjing
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- vigesimal
- vigesimal system
- Viggo Fausböll
- vigilance
- vigilance decrement phenomenon
- vigintillion
- vignetting
- vignetting coefficient
- vignetting effect
- vignetting in eyepiece