ContrastWSD: Enhancing Metaphor Detection with Word Sense Disambiguation

Keskeiset käsitteet

RoBERTa-based model ContrastWSD enhances metaphor detection by integrating Word Sense Disambiguation, outperforming other methods.

Tiivistelmä

• Introduction to metaphors and their significance in communication.
• Importance of automatic metaphor detection in NLP tasks.
• Evolution from manual feature engineering to transformer-based models.
• Utilization of WSD models to enhance metaphor detection.
• Evaluation of ContrastWSD on benchmark datasets showing superior performance.
• Comparison with baseline models like MelBERT, MsW_cos, and FrameBERT.
• Statistical significance analysis of ContrastWSD's performance improvements.
• Case studies demonstrating ContrastWSD's accurate metaphor identification compared to baselines.

Tilastot

"Our proposed model outperformed other state-of-the-art metaphor detection models."
"Our model shows a notable advantage in detecting metaphorical adverbs."
"The results indicate that the reported differences between our model and the other baseline models are statistically significant at a confidence level of 95%."

Lainaukset

"By utilizing the word senses derived from a WSD model, our model enhances the metaphor detection process."
"Our proposed method is evaluated on established benchmark datasets, and the results demonstrate significant improvements."

Tärkeimmät oivallukset

ContrastWSD

by Mohamad Elzo... klo arxiv.org 03-26-2024

https://arxiv.org/pdf/2309.03103.pdf

Syvällisempiä Kysymyksiä

How can incorporating commonsense models like COMET further enhance metaphor detection

COMET, a commonsense model for automatic knowledge graph construction, can significantly enhance metaphor detection by providing additional context and semantic information. By incorporating COMET into the ContrastWSD model, it can leverage the vast amount of common-sense knowledge to better understand the relationships between words and concepts. This enhanced understanding can help in differentiating between literal and metaphorical language more effectively. For example, COMET's ability to capture general world knowledge and infer implicit relationships can aid in identifying subtle nuances in metaphors that may not be explicitly stated in the text. Additionally, COMET's contextual embeddings can provide a broader perspective on word meanings and associations, enabling a more comprehensive analysis of metaphoric expressions.

What are the implications of ContrastWSD's ability to recognize both novel and conventional metaphors

The ability of ContrastWSD to recognize both novel and conventional metaphors has significant implications for improving metaphor detection accuracy across various datasets. By correctly identifying novel metaphors that may not have been previously encountered or documented as conventional expressions, ContrastWSD demonstrates its adaptability and robustness in capturing nuanced linguistic patterns. This capability is crucial for handling evolving language usage trends where new metaphors emerge over time. Furthermore, being able to differentiate between novel and conventional metaphors showcases the model's depth of understanding of figurative language beyond established conventions. This versatility enhances the overall performance of metaphor detection systems by ensuring they remain effective across diverse contexts.

How can ContrastWSD's approach be applied to other NLP tasks beyond metaphor detection

The approach taken by ContrastWSD in contrasting word senses from WSD models with basic definitions opens up possibilities for application beyond metaphor detection in other NLP tasks.

Sentiment Analysis: By analyzing how words are used figuratively within sentiment-laden texts, ContrastWSD could provide deeper insights into emotional tones conveyed through metaphoric language.
Text Paraphrasing: Understanding when words are used metaphorically versus literally can improve paraphrasing accuracy by preserving intended meanings during rephrasing processes.
Machine Translation: Recognizing metaphoric expressions accurately is essential for maintaining semantic fidelity during translation tasks where idiomatic phrases or cultural references play a role.
By integrating ContrastWSD's methodology into these NLP applications, it is possible to enhance their performance by considering both contextual meaning variations and fundamental definitions inherent in natural language usage.