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Marianna Apidianaki

10 accepted papers

2025

Calibrating Large Language Models with Sample Consistency

AAAI 2025technical

Accurately gauging the confidence level of Large Language Models' (LLMs) predictions is pivotal for their reliable application. However, LLMs are often uncalibrated inherently and elude conventional calibration techniques due to their proprietary nature and massive scale. In this work, we derive mod…

2025

Latent Space Interpretation for Stylistic Analysis and Explainable Authorship Attribution

COLING 2025main

Recent state-of-the-art authorship attribution methods learn authorship representations of text in a latent, uninterpretable space, which hinders their usability in real-world applications. We propose a novel approach for interpreting learned embeddings by identifying representative points in the la…

Cited by 0SourcePDFScholar
2025

StyleDistance: Stronger Content-Independent Style Embeddings with Synthetic Parallel Examples

NAACL 2025long

Style representations aim to embed texts with similar writing styles closely and texts with different styles far apart, regardless of content. However, the contrastive triplets often used for training these representations may vary in both style and content, leading to potential content leakage in t…

Cited by 2SourcePDFScholar
2025

mStyleDistance: Multilingual Style Embeddings and their Evaluation

ACL 2025finding

Style embeddings are useful for stylistic analysis and style transfer, yet they only exist for English. We introduce Multilingual StyleDistance (mStyleDistance), a method that can generate style embeddings in new languages using synthetic data and a contrastive loss. We create style embeddings in ni…

Cited by 0SourcePDFScholar
2023

Explanation-based Finetuning Makes Models More Robust to Spurious Cues

ACL 2023long

Large Language Models (LLMs) are so powerful that they sometimes learn correlations between labels and features that are irrelevant to the task, leading to poor generalization on out-of-distribution data. We propose explanation-based finetuning as a general approach to mitigate LLMs’ reliance on spu…

2023

I Spy a Metaphor: Large Language Models and Diffusion Models Co-Create Visual Metaphors

ACL 2023findings

Visual metaphors are powerful rhetorical devices used to persuade or communicate creative ideas through images. Similar to linguistic metaphors, they convey meaning implicitly through symbolism and juxtaposition of the symbols. We propose a new task of generating visual metaphors from linguistic met…

2022

Is “My Favorite New Movie” My Favorite Movie? Probing the Understanding of Recursive Noun Phrases

NAACL 2022long

Recursive noun phrases (NPs) have interesting semantic properties. For example, “my favorite new movie” is not necessarily my favorite movie, whereas “my new favorite movie” is. This is common sense to humans, yet it is unknown whether language models have such knowledge. We introduce the Recursive…

2022

Visualizing the Obvious: A Concreteness-based Ensemble Model for Noun Property Prediction

EMNLP 2022finding

Neural language models encode rich knowledge about entities and their relationships which can be extracted from their representations using probing. Common properties of nouns (e.g., red strawberries, small ant) are, however, more challenging to extract compared to other types of knowledge because t…