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arXiv 0705.4485stat.MEcs.LGmath.STphysics.soc-phstat.MLstat.TH
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混合隶属随机块模型

Mixed membership stochastic blockmodels

Princeton University(普林斯顿大学);Carnegie Mellon University(卡内基梅隆大学)

Edoardo M Airoldi, David M Blei, Stephen E Fienberg, Eric P Xing

摘要:

由对对象对的关系的测量组成的观察出现在许多环境中,例如蛋白质相互作用和基因调控网络、作者-接收者电子邮件的集合以及社交网络。用概率模型分析这些数据可能会很微妙,因为许多样板模型所基于的简单交换假设不再成立。在本文中,我们描述了这样的数据的潜变量模型称为混合成员随机块模型。该模型将关系数据的块模型扩展到捕获混合成员潜在关系结构的块模型,从而提供特定于对象的低维表示。本文提出了一种快速近似后验推理的一般变分推断算法。我们探索社会和蛋白质相互作用网络的应用。

英文摘要:

Observations consisting of measurements on relationships for pairs of objects arise in many settings, such as protein interaction and gene regulatory networks, collections of author-recipient email, and social networks. Analyzing such data with probabilisic models can be delicate because the simple exchangeability assumptions underlying many boilerplate models no longer hold. In this paper, we describe a latent variable model of such data called the mixed membership stochastic blockmodel. This model extends blockmodels for relational data to ones which capture mixed membership latent relational structure, thus providing an object-specific low-dimensional representation. We develop a general variational inference algorithm for fast approximate posterior inference. We explore applications to social and protein interaction networks.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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