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Konstantinos Papakostas

2 accepted papers

2023

Model Analysis & Evaluation for Ambiguous Question Answering

ACL 2023findings

Ambiguous questions are a challenge for Question Answering models, as they require answers that cover multiple interpretations of the original query. To this end, these models are required to generate long-form answers that often combine conflicting pieces of information. Although recent advances in…

2023

Probing LLMs for Joint Encoding of Linguistic Categories

EMNLP 2023long findings

Large Language Models (LLMs) exhibit impressive performance on a range of NLP tasks, due to the general-purpose linguistic knowledge acquired during pretraining. Existing model interpretability research (Tenney et al., 2019) suggests that a linguistic hierarchy emerges in the LLM layers, with lower…

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