Deep Learning Methods for Extracting Metaphorical Names of Flowers and Plants

Mitkov, Ruslan and Haddad Haddad, Amal and Premasiri, Damith and Ranasinghe, Tharindu (2023) Deep Learning Methods for Extracting Metaphorical Names of Flowers and Plants. Procesamiento del Lenguaje Natural, 71. (In Press)

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Abstract

The domain of Botany is rich with metaphoical terms. Those terms play an important role in the description and identification of flowers and plants. However, the identification of such terms in discourse is an arduous task. This leads in some cases to committing errors during translation processes and lexicographic tasks. The process is even more challenging when it comes to machine translation, both in the cases of single-word terms and multi-word terms. One of the recent concerns of Natural Language Processing (NLP) applications and Machine Translation (MT) technologies is the automatic identification of metaphor-based words in discourse through Deep Learning (DL). In this study, we seek to fill this gap through the use of thirteen popular transformer based models, as well as ChatGPT, and we show that discriminative models perform better than GPT-3.5 model with our best performer reporting 92.2349% F1 score in metaphoric flower and plant names identification task.