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Francesco Periti

6 accepted papers

2025

Definition Generation for Word Meaning Modeling: Monolingual, Multilingual, and Cross-Lingual Perspectives

EMNLP 2025

The task of Definition Generation has recently gained attention as an interpretable approach to modeling word meaning. Thus far, most research has been conducted in English, with limited work and resources for other languages. In this work, we expand Definition Generation beyond English to a suite o

Cited by 0SourcePDFScholar
2025

Explaining novel senses using definition generation with open language models

EMNLP 2025

We apply definition generators based on open-weights large language models to the task of creating explanations of novel senses, taking target word usages as an input. To this end, we employ the datasets from the AXOLOTL’24 shared task on explainable semantic change modeling, which features Finnish,

2024

A Systematic Comparison of Contextualized Word Embeddings for Lexical Semantic Change

NAACL 2024long

Contextualized embeddings are the preferred tool for modeling Lexical Semantic Change (LSC). Current evaluations typically focus on a specific task known as Graded Change Detection (GCD). However, performance comparison across work are often misleading due to their reliance on diverse settings. In t…

2024

Analyzing Semantic Change through Lexical Replacements

ACL 2024long

Modern language models are capable of contextualizing words based on their surrounding context. However, this capability is often compromised due to semantic change that leads to words being used in new, unexpected contexts not encountered during pre-training. In this paper, we model semantic change…

2024

Automatically Generated Definitions and their utility for Modeling Word Meaning

EMNLP 2024main

Modeling lexical semantics is a challenging task, often suffering from interpretability pitfalls. In this paper, we delve into the generation of dictionary-like sense definitions and explore their utility for modeling word meaning. We fine-tuned two Llama models and include an existing T5-based mode…

Cited by 2SourcePDFScholar
2024

TRoTR: A Framework for Evaluating the Re-contextualization of Text Reuse

EMNLP 2024main

Current approaches for detecting text reuse do not focus on recontextualization, i.e., how the new context(s) of a reused text differs from its original context(s). In this paper, we propose a novel framework called TRoTR that relies on the notion of topic relatedness for evaluating the diachronic c…