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arXiv 1108.0294cs.AIcs.DB
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基于任务分解的Markov逻辑标度推理

Scaling Inference for Markov Logic with a Task-Decomposition Approach

University of Wisconsin-Madison(威斯康星大学麦迪逊分校)

Feng Niu, Ce Zhang, Christopher Ré, Jude Shavlik

摘要:

出于在大规模知识库建设的应用,我们研究了一个复杂的统计推理框架称为马尔可夫逻辑网络(MLNs)的问题。我们的方法,费利克斯,使用拉格朗日松弛的思想,从数学规划分解成更小的任务,同时保留联合推理性能的原始MLN的程序。其优点是,我们可以使用高度可扩展的专用算法来完成分类和共指等常见任务。我们提出了一个架构,支持拉格朗日松弛的RDBMS,我们表明,可扩展的联合推理MLNs。我们的经验验证,费利克斯是显着更具可扩展性和效率比以前的方法,MLN推理,从1.8M的文件作为TAC挑战的一部分,构建一个知识库。我们表明,费利克斯规模和实现国家的最先进的质量数字。相比之下,现有方法甚至不能缩放到小三个数量级的语料库的子集。

英文摘要:

Motivated by applications in large-scale knowledge base construction, we study the problem of scaling up a sophisticated statistical inference framework called Markov Logic Networks (MLNs). Our approach, Felix, uses the idea of Lagrangian relaxation from mathematical programming to decompose a program into smaller tasks while preserving the joint-inference property of the original MLN. The advantage is that we can use highly scalable specialized algorithms for common tasks such as classification and coreference. We propose an architecture to support Lagrangian relaxation in an RDBMS which we show enables scalable joint inference for MLNs. We empirically validate that Felix is significantly more scalable and efficient than prior approaches to MLN inference by constructing a knowledge base from 1.8M documents as part of the TAC challenge. We show that Felix scales and achieves state-of-the-art quality numbers. In contrast, prior approaches do not scale even to a subset of the corpus that is three orders of magnitude smaller.

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