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系统生物学元数据

Metadata For Systems Biology
课程网址: http://videolectures.net/mlsb09_juty_mfsb/  
主讲教师: Nick Juty
开课单位: 欧洲生物信息学研究所
开课时间: 2009-10-05
课程语种: 英语
中文简介:
现代计算和理论工具可以轻松应用于建模,这导致生物学中计算模型的大小和复杂性呈指数增长。与此同时,加速的进展速度也凸显了当前建模方法的局限性。其中一个局限是模型的语义和定性行为系统化程度不够程度,并且正式表达足以支持软件系统的明确解释。因此,需要人为干预来解释和连接模型的数学结构与其含义(语义)的信息。通常,这些关键信息通常通过自由文本描述或非标准注释进行传达;然而,当前的建模工具不能轻易地解释自由文本描述。我们将描述三种努力来标准化动力学模型的缺失语义的编码。总体方法涉及将模型元素连接到共同的外部信息源,这些信息源可以随着现有知识的扩展和改进而扩展。这些外部资源是经过精心管理的公共,免费,共识本体:系统生物学本体论(SBO),动力学模拟算法本体论(KiSAO)和动力学描述术语(TeDDy)。它们共同提供了一种注释模型的方法,该模型具有稳定的多年生标识符,参考机器可读的规定术语,定义建模过程三个方面的语义1)模型与其描述的生物学之间的关系,2)过程用于模拟模型并获得预期结果,以及3)结果本身。
课程简介: The ease with which modern computational and theoretical tools can be applied to modeling has led to an exponential increase in the size and complexity of computational models in biology. At the same time, the accelerating pace of progress also highlights limitations in current approaches to modeling. One of these limitations is the insufficient degree to which the semantics and qualitative behaviour of models are systematised and expressed formally enough to support unambiguous interpretation by software systems. As a result, human intervention is required to interpret and connect a model's mathematical structures with information about the its meaning (semantics). Often, this critical information is usually communicated through free-text descriptions or non-standard annotations; however, free-text descriptions cannot easily be interpreted by current modeling tools. We will describe three efforts to standardize the encoding of missing semantics for kinetic models. The overall approach involves connecting model elements to common, external sources of information that can be extended as existing knowledge is expanded and refined. These external sources are carefully managed public, free, consensus ontologies: the Systems Biology Ontology (SBO), the Kinetic Simulation Algorithm Ontology (KiSAO), and the Terminology for the Description of Dynamics (TeDDy). Together they provide a means for annotating a model with stable and perennial identifiers which reference machine readable regulated terms defining the semantics of the three facets of the modeling process 1) the relationship between the model and the biology it aims to describe, 2) the process used to simulate the model and obtain expected results, and 3) the results themselves.
关 键 词: 现代计算; 理论工具; 指数增长
课程来源: 视频讲座网
最后编审: 2019-07-02:cwx
阅读次数: 39