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解释性科学模型的计算发现中的挑战

Challenges in the Computational Discovery of Explanatory Scientific Models
课程网址: http://videolectures.net/solomon_langley_ccdes/  
主讲教师: Pat Langley
开课单位: 斯坦福大学
开课时间: 2007-02-25
课程语种: 英语
中文简介:
越来越多的科学数据导致人们越来越多地使用计算发现方法来理解和解释它们。但是,大多数工作都依赖于诸如集群和分类学习之类的知识贫乏技术,这些知识生成的是描述性模型而不是解释性模型,并且它利用了AI或统计数据中开发的形式主义,因此结果很少与当前的理论或科学符号联系。在本次演讲中,我提出了一种新的计算发现方法,该方法将解释性的科学模型编码为定量过程集,模拟这些模型随时间的行为,结合背景知识来约束模型的构建,并从时序数据中可靠地引入这些模型方式。我将说明来自地球科学和微生物学的数据和模型的框架,这两个领域经常发生解释性过程说明。最后,我描述了在构建,评估和修订此类解释性科学模型的交互式软件环境方面的进展。该演讲描述了与Kevin Arrigo,Stephen Bay,Lonnie Chrisman,Dileep George,Andrew Pohorille,Javier Sanchez,Dan Shapiro和Jeff Shrager的联合工作。
课程简介: The growing amount of scientific data has led to the increased use of computational discovery methods to understand and interpret them. However, most work has relied on knowledge-lean techniques like clustering and classification learning, which produce descriptive rather than explanatory models, and it has utilized formalisms developed in AI or statistics, so that results seldom make contact with current theories or scientific notations. In this talk, I present a new approach to computational discovery that encodes explanatory scientific models as sets of quantitative processes, simulates these models' behavior over time, incorporates background knowledge to constrain model construction, and induces these models from time-series data in a robust manner. I illustrate this framework on data and models from Earth science and microbiology, two domains in which explanatory process accounts occur frequently. In closing, I describe our progress toward an interactive software environment for the construction, evaluation, and revision of such explanatory scientific models. This talk describes joint work with Kevin Arrigo, Stephen Bay, Lonnie Chrisman, Dileep George, Andrew Pohorille, Javier Sanchez, Dan Shapiro, and Jeff Shrager.
关 键 词: 科学数据; 分类学习; 交互式软件
课程来源: 视频讲座网
最后编审: 2019-09-22:cwx
阅读次数: 27