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Home / Proceedings / Proceedings of the AAAI Conference on Artificial Intelligence

A Joint Model for Definition Extraction with Syntactic Connection and Semantic Consistency

February 1, 2023

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Authors

Amir Veyseh

University of Oregon


Franck Dernoncourt

Adobe Research


Dejing Dou

University of Oregon


Thien Nguyen

University of Oregon


DOI:

10.1609/aaai.v34i05.6444


Abstract:

Definition Extraction (DE) is one of the well-known topics in Information Extraction that aims to identify terms and their corresponding definitions in unstructured texts. This task can be formalized either as a sentence classification task (i.e., containing term-definition pairs or not) or a sequential labeling task (i.e., identifying the boundaries of the terms and definitions). The previous works for DE have only focused on one of the two approaches, failing to model the inter-dependencies between the two tasks. In this work, we propose a novel model for DE that simultaneously performs the two tasks in a single framework to benefit from their inter-dependencies. Our model features deep learning architectures to exploit the global structures of the input sentences as well as the semantic consistencies between the terms and the definitions, thereby improving the quality of the representation vectors for DE. Besides the joint inference between sentence classification and sequential labeling, the proposed model is fundamentally different from the prior work for DE in that the prior work has only employed the local structures of the input sentences (i.e., word-to-word relations), and not yet considered the semantic consistencies between terms and definitions. In order to implement these novel ideas, our model presents a multi-task learning framework that employs graph convolutional neural networks and predicts the dependency paths between the terms and the definitions. We also seek to enforce the consistency between the representations of the terms and definitions both globally (i.e., increasing semantic consistency between the representations of the entire sentences and the terms/definitions) and locally (i.e., promoting the similarity between the representations of the terms and the definitions). The extensive experiments on three benchmark datasets demonstrate the effectiveness of our approach.1

Topics: AAAI

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HOW TO CITE:

Amir Veyseh||Franck Dernoncourt||Dejing Dou||Thien Nguyen A Joint Model for Definition Extraction with Syntactic Connection and Semantic Consistency Proceedings of the AAAI Conference on Artificial Intelligence (2020) 9098-9105.

Amir Veyseh||Franck Dernoncourt||Dejing Dou||Thien Nguyen A Joint Model for Definition Extraction with Syntactic Connection and Semantic Consistency AAAI 2020, 9098-9105.

Amir Veyseh||Franck Dernoncourt||Dejing Dou||Thien Nguyen (2020). A Joint Model for Definition Extraction with Syntactic Connection and Semantic Consistency. Proceedings of the AAAI Conference on Artificial Intelligence, 9098-9105.

Amir Veyseh||Franck Dernoncourt||Dejing Dou||Thien Nguyen. A Joint Model for Definition Extraction with Syntactic Connection and Semantic Consistency. Proceedings of the AAAI Conference on Artificial Intelligence 2020 p.9098-9105.

Amir Veyseh||Franck Dernoncourt||Dejing Dou||Thien Nguyen. 2020. A Joint Model for Definition Extraction with Syntactic Connection and Semantic Consistency. "Proceedings of the AAAI Conference on Artificial Intelligence". 9098-9105.

Amir Veyseh||Franck Dernoncourt||Dejing Dou||Thien Nguyen. (2020) "A Joint Model for Definition Extraction with Syntactic Connection and Semantic Consistency", Proceedings of the AAAI Conference on Artificial Intelligence, p.9098-9105

Amir Veyseh||Franck Dernoncourt||Dejing Dou||Thien Nguyen, "A Joint Model for Definition Extraction with Syntactic Connection and Semantic Consistency", AAAI, p.9098-9105, 2020.

Amir Veyseh||Franck Dernoncourt||Dejing Dou||Thien Nguyen. "A Joint Model for Definition Extraction with Syntactic Connection and Semantic Consistency". Proceedings of the AAAI Conference on Artificial Intelligence, 2020, p.9098-9105.

Amir Veyseh||Franck Dernoncourt||Dejing Dou||Thien Nguyen. "A Joint Model for Definition Extraction with Syntactic Connection and Semantic Consistency". Proceedings of the AAAI Conference on Artificial Intelligence, (2020): 9098-9105.

Amir Veyseh||Franck Dernoncourt||Dejing Dou||Thien Nguyen. A Joint Model for Definition Extraction with Syntactic Connection and Semantic Consistency. AAAI[Internet]. 2020[cited 2023]; 9098-9105.


ISSN: 2374-3468


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