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首页> 外文期刊>The Journal of Artificial Intelligence Research >Integrative Semantic Dependency Parsing via Efficient Large-scale Feature Selection
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Integrative Semantic Dependency Parsing via Efficient Large-scale Feature Selection

机译:通过有效的大规模特征选择集成语义相关性解析

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摘要

Semantic parsing, i.e., the automatic derivation of meaning representation such as an instantiated predicate-argument structure for a sentence, plays a critical role in deep processing of natural language. Unlike all other top systems of semantic dependency parsing that have to rely on a pipeline framework to chain up a series of submodels each specialized for a specific subtask, the one presented in this article integrates everything into one model, in hopes of achieving desirable integrity and practicality for real applications while maintaining a competitive performance. This integrative approach tackles semantic parsing as a word pair classification problem using a maximum entropy classifier. We leverage adaptive pruning of argument candidates and large-scale feature selection engineering to allow the largest feature space ever in use so far in this field, it achieves a state-of-the-art performance on the evaluation data set for CoNLL-2008 shared task, on top of all but one top pipeline system, confirming its feasibility and effectiveness.
机译:语义解析,即诸如句子的实例化谓词-自变量结构之类的含义表示的自动派生,在自然语言的深度处理中起着至关重要的作用。与其他所有依赖于管道框架来链接一系列子模型的顶级语义依赖分析系统不同,每个子模型专门用于特定的子任务,本文介绍的系统将所有内容集成到一个模型中,以期实现所需的完整性和完整性。实际应用的实用性,同时保持竞争优势。这种集成方法使用最大熵分类器将语义解析作为单词对分类问题解决。我们利用对参数候选者的自适应修剪和大规模特征选择工程来允许该领域迄今使用的最大特征空间,它在CoNLL-2008共享的评估数据集上实现了最先进的性能除了一个最重要的管道系统之外,最重要的任务就是确认其可行性和有效性。

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