A hybrid representation-based simile component extraction

Da Ren, Pengfei Zhang, Qing Li, Xiaohui Tao, Junying Chen, Yi Cai

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

Simile, a special type of metaphor, can help people to express their ideas more clearly. Simile component extraction is to extract tenors and vehicles from sentences. This task has a realistic significance since it is useful for building cognitive knowledge base. With the development of deep neural networks, researchers begin to apply neural models to component extraction. Simile components should be in cross-domain. According to our observations, words in cross-domain always have different concepts. Thus, concept is important when identifying whether two words are simile components or not. However, existing models do not integrate concept into their models. It is difficult for these models to identify the concept of a word. What’s more, corpus about simile component extraction is limited. There are a number of rare words or unseen words, and the representations of these words are always not proper enough. Exiting models can hardly extract simile components accurately when there are low-frequency words in sentences. To solve these problems, we propose a hybrid representation-based component extraction (HRCE) model. Each word in HRCE is represented in three different levels: word level, concept level and character level. Concept representations (representations in concept level) can help HRCE to identify the words in cross-domain more accurately. Moreover, with the help of character representations (representations in character levels), HRCE can represent the meaning of a word more properly since words are consisted of characters and these characters can partly represent the meaning of words. We conduct experiments to compare the performance between HRCE and existing models. The experiment results show that HRCE significantly outperforms current models.

Original languageEnglish
Pages (from-to)14655-14665
Number of pages11
JournalNeural Computing and Applications
Volume32
Issue number18
DOIs
Publication statusPublished - 1 Sep 2020

Keywords

  • Character
  • Concept
  • Simile component

ASJC Scopus subject areas

  • Software
  • Artificial Intelligence

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