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Katerina Papantoniou

2 papers indexed

arxivcs.CLcs.AI2026-07-23

slang.gr as a Large-Scale Crowdsourced Resource for Non-Standard Greek

Panagiotis Papadakos, Katerina Papantoniou, Dimitris Plexousakis

Slang is a central component of everyday language, reflecting linguistic creativity, social identity, and cultural change, yet its dy- namic and non-standard nature makes it difficult to model computationally. We present the first large-scale computational study of slang.gr, a cr…

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arxivcs.CLcs.AI2026-07-23

A Comparative Evaluation of Embeddings and LLMs in a Greek Book Publisher Setting - The CUP Dataset

Katerina Papantoniou, Panagiotis Papadakos, Theodore Patkos, Dimitris Garefalakis, Nikos Vardakis, Dimitris Plexousakis

We present CUP, a Greek book retrieval benchmark consisting of 868 catalog records and 104 expert-annotated queries with graded relevance judgments. We evaluate sparse (BM25), dense (sentence-transformers), hybrid, and LLM-assisted retrieval methods in this book-search setting. M…

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