分子挖掘(Molecule mining)为使用分子数据挖掘。由于分子可由分子图表示,这与图形挖掘结构化数据挖掘密切相关。主要问题是如何在区分数据实例时表示分子。其中一种方法是化学相似性度量,这在化学资讯学领域具有悠久的传统。

计算化学相似性的典型方法是使用化学指纹,但这会导致丢失有关分子拓扑的基础资讯。挖掘分子图直接避免了这个问题。反向QSAR问题也适用于矢量映射问题。

编码(分子i,分子j\neq i)

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核心方法

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最大值共同图形方法(Maximum Common Graph methods)

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  • MCS-HSCS[9] (单MCS最高得分普通子结构(HSCS)排名策略)
  • 小分子子图检测器(SMSD)[10]-是一个基于Java的软件库,用于计算小分子之间的最大共同子图(MCS)。这将有助于我们找到两个分子之间的相似性/距离。 MCS也用于通过击打分子来筛选药物化合物,其分享共同的子图(子结构)。[11]

编码(分子i)

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分子查询方法

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基于神经网络特殊架构的方法

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参见

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参考文献

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进一步阅读

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  • Schölkopf, B., K. Tsuda and J. P. Vert: Kernel Methods in Computational Biology, MIT Press, Cambridge, MA, 2004.
  • R.O. Duda, P.E. Hart, D.G. Stork, Pattern Classification, John Wiley & Sons, 2001. ISBN 0-471-05669-3
  • Gusfield, D., Algorithms on Strings, Trees, and Sequences: Computer Science and Computational Biology, Cambridge University Press, 1997ISBN 0-521-58519-8
  • R. Todeschini, V. Consonni, Handbook of Molecular Descriptors, Wiley-VCH, 2000. ISBN 3-527-29913-0

参见

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外部链接

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