מושגי ליבה
Meta4XNLI is a parallel corpus in Spanish and English that provides metaphor annotations for both detection at the token level and interpretation through Natural Language Inference.
תקציר
Meta4XNLI is a novel parallel dataset that addresses the lack of multilingual resources for metaphor processing. It combines existing NLI datasets (XNLI and esXNLI) and enriches them with metaphor annotations in Spanish and English.
The key highlights of the dataset are:
- Parallel data with metaphorical annotations at both the token level for detection and the premise-hypothesis pair level for interpretation.
- Enables cross-lingual analysis of metaphor by providing translations in both directions (EN->ES, ES->EN).
- Contains natural language sentences from multiple domains, rather than synthetically generated examples.
- Provides a sufficient number of instances to support comprehensive evaluation of metaphor processing capabilities in language models.
The authors developed the annotations following the MIPVU guidelines for metaphor identification. For detection, they first automatically labeled the data using pre-trained models and then manually reviewed the predictions. For interpretation, they manually annotated premise-hypothesis pairs where understanding the literal meaning of metaphors is crucial to determine the inference relationship.
The resulting dataset contains 13,320 sentences, with 14% of them having at least one metaphorical expression in Spanish and 20.5% in English. For the interpretation task, 12% of the premise-hypothesis pairs require understanding the literal meaning of metaphors to infer the relationship between them.
This resource aims to facilitate research on multilingual and cross-lingual metaphor processing, enabling the exploration of metaphor transferability between languages and the impact of translation on the development of annotated datasets.
סטטיסטיקה
There are 1,155 metaphorical tokens in the Spanish premises and 1,139 in the hypotheses.
1,873 out of the 13,320 sentences (14%) in the Spanish dataset contain at least one metaphorical expression.
There are 3,330 metaphorical tokens in the English dataset, with 2,736 out of 13,320 sentences (20.5%) containing at least one metaphorical expression.
12% of the premise-hypothesis pairs in the dataset require understanding the literal meaning of metaphors to determine the inference relationship.
ציטוטים
"Metaphors, although occasionally unperceived, are ubiquitous in our everyday language. Thus, it is crucial for Language Models to be able to grasp the underlying meaning of this kind of figurative language."
"Meta4XNLI is a compilation of XNLI (Conneau et al. 2018) and esXNLI (Artetxe, Labaka, and Agirre 2020). We decided to exploit these resources since we evaluate metaphor interpretation through NLI and these datasets were originally developed for this task."