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arXiv 2104.00424cs.CL
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话语的高维分布式语义空间

High-dimensional distributed semantic spaces for utterances

Gavagai;KTH Royal Institute of Technology(瑞典皇家理工学院);Redwood Center for Theoretical Neuroscience, UC Berkeley(加州大学伯克利分校红木理论神经科学中心)

Jussi Karlgren, Pentti Kanerva

摘要:

高维分布式语义空间已被证明是有用的和有效的聚合和处理视觉,听觉和词汇信息的许多任务相关的人类生成的数据。人类语言使用大量不同数量的特征、词汇和结构项以及各种类型的上下文和特定于话语的数据,它们都相互作用以表示交际信息的各个方面。这些特征中有一些是局部的,对组织谓词的论元结构很有用;另一些是在话语过程中持续存在的,对达到对内容的合理理解是必要的。本文描述了一个模型,用于高维表示的话语和文本级数据,包括功能,如结构或上下文数据,基于数学原理和行为上合理的方法来表示语言信息。该表示的实现是以前用于词汇语言项的随机索引模型的直接扩展。本文展示了如何实现的模型是能够代表广泛的语言特征在一个共同的整体框架中的固定维度,这是计算上可居住的,这是合适的符号表示之间的桥梁,如依赖分析和连续表示使用,例如在分类器或进一步的机器学习方法。这是通过对向量的操作来实现的,这些向量构成了一个强大的计算代数,并伴随着向量的关联记忆。本文提供了一个技术概述的框架和一个工作,通过实施的例子,它可以应用于各种类型的语言功能。

英文摘要:

High-dimensional distributed semantic spaces have proven useful and effective for aggregating and processing visual, auditory, and lexical information for many tasks related to human-generated data. Human language makes use of a large and varying number of features, lexical and constructional items as well as contextual and discourse-specific data of various types, which all interact to represent various aspects of communicative information. Some of these features are mostly local and useful for the organisation of e.g. argument structure of a predication; others are persistent over the course of a discourse and necessary for achieving a reasonable level of understanding of the content. This paper describes a model for high-dimensional representation for utterance and text level data including features such as constructions or contextual data, based on a mathematically principled and behaviourally plausible approach to representing linguistic information. The implementation of the representation is a straightforward extension of Random Indexing models previously used for lexical linguistic items. The paper shows how the implemented model is able to represent a broad range of linguistic features in a common integral framework of fixed dimensionality, which is computationally habitable, and which is suitable as a bridge between symbolic representations such as dependency analysis and continuous representations used e.g. in classifiers or further machine-learning approaches. This is achieved with operations on vectors that constitute a powerful computational algebra, accompanied with an associative memory for the vectors. The paper provides a technical overview of the framework and a worked through implemented example of how it can be applied to various types of linguistic features.

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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