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Cyc的基本事实,规则和概率推论

Ground Facts, Rules and Probabilistic Inference forCyc
课程网址: http://videolectures.net/ida07_witbrock_gf/  
主讲教师: Michael Witbrock
开课单位: 沃森研究中心
开课时间: 信息不详。欢迎您在右侧留言补充。
课程语种: 英语
中文简介:
Cyc的一个方面是一个非常大的、基于逻辑的知识库,除其他外,该知识库还包括大量跨各种领域的背景知识,但不仅仅如此;Cyc项目试图通过支持对各种现实世界问题的自动推理,向一般人工智能迈进。为了支持这一目标,显然,cyc还包括能够在大的上下文知识库中推理的推理引擎,但它还包括解释和生成自然语言、获取知识和响应用户查询以及与其他软件接口的组件。将逻辑应用于一般知识的表示,/at scale/,并将其用于智能行为的产生是非常困难的;不幸的是,很明显,使用传统的逻辑可能不足以满足支持一般智能的长期目标,甚至不足以满足较短的时间内的目标。RM目标,如识别、解释和详细描述盗版事件。在这篇演讲中,我将简要地描述CYC是什么,已经是什么,以及它是如何发展的,在传统逻辑框架中,接触到一种早期的诱拐推理和分类方法,以及这种方法的一些困难,然后描述最近的,非常初步的工作训练基于基础事实和规则的马尔可夫逻辑网络。在cyc-kb的数百万个公理中。最后,我将勾画出一个系统的远景,它真正地将声音、演绎推理和概率分类、归纳、诱拐和演绎的有界不健全结合在一起。
课程简介: One aspect of Cyc is a very large, logic-based knowledge base that includes, inter-alia, large amounts of background knowledge over a wide variety of domains, but it is more than that; the Cyc project is an attempt to move towards general artificial intelligence by supporting automated reasoning about a very wide variety of real-world concerns. To support that goal, Cyc also encompasses, obviously enough, and inference engine able to reason over a large, contextual, knowledge base, but it also includes components for interpreting and producing natural language, acquiring knowledge and responding to user queries, and for interfacing with other software. Applying logic to representation of general knowledge, /at scale/, and using it in the production of intelligent behaviors has been difficult enough; unfortunately it is becoming clear that doing so using traditional logics is probably not sufficient, either for satisfying a long term goal of supporting general intelligence, or even for shorter term goals, like recognizing, interpreting, and elaborating descriptions of piracy events. In this talk, I'll briefly describe what Cyc is, and has been, and how it is growing, touch on an early approach to abductive reasoning and classification in a traditional logical framework, and some difficulties with that approach, and then describe recent, very initial work training the Markov Logic networks based on ground facts and rules within the millions of axioms of the Cyc KB. Finally I'll sketch a vision for a system that truly integrates both sound, deductive reasoning, and the bounded unsoundness of probabilistic classification, induction, abduction and deduction.
关 键 词: 知识库; 人工智能; 逻辑; 推理
课程来源: 视频讲座网
最后编审: 2019-11-03:cwx
阅读次数: 29