Papers by Meghdut Sengupta
Investigating the Impact of Conceptual Metaphors on LLM-based NLI through Shapley Interactions (2025.findings-emnlp)
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Meghdut Sengupta, Maximilian Muschalik, Fabian Fumagalli, Barbara Hammer, Eyke Hüllermeier, Debanjan Ghosh, Henning Wachsmuth
| Challenge: | Metaphorical language is prevalent in everyday communication, often used unconsciously, as in "rising crime" incorporating conceptual metaphors improves performance on downstream tasks that implicitly require correct metaphor interpretation, such as NLI. |
| Approach: | They extend metaphorical texts in an existing NLI dataset by source and target domains and conduct an ablation study using Shapley values and interactions to assess the extent to which LLMs interpret metaphorical language correctly in NLI. |
| Outcome: | The proposed method improves performance on natural language inference tasks with metaphoric input. |
Modeling Highlighting of Metaphors in Multitask Contrastive Learning Paradigms (2023.findings-emnlp)
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| Challenge: | Existing methods to identify highlighted aspects of a metaphorical sentence are not yet available. |
| Approach: | They propose to identify the main aspect highlighted in a metaphorical sentence by using a joint learning approach and a continual learning approach. |
| Outcome: | The proposed approach improves predicting highlighted aspects and source domains compared to baselines on an existing corpus. |
Modeling the Quality of Dialogical Explanations (2024.lrec-main)
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Milad Alshomary, Felix Lange, Meisam Booshehri, Meghdut Sengupta, Philipp Cimiano, Henning Wachsmuth
| Challenge: | Existing studies have focused on the interaction of explanation moves, dialogue acts, and topics in successful dialogues with expert explainers. |
| Approach: | They construct a corpus of 399 reddit dialogues and analyze interaction flows and explainee quality using two language models that can handle long inputs. |
| Outcome: | The proposed model predicts that the interaction flows between the explainer and the explainee correlate with the quality of the explanations in terms of a successful understanding on the explain's side. |
Analyzing the Use of Metaphors in News Editorials for Political Framing (2024.naacl-long)
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| Challenge: | Existing studies on the use of metaphors in political discourses are largely unexplored. |
| Approach: | They propose to use a dataset to study the use of metaphors in political discourses . they identify single and composite metaphors and provide annotations of their source and target domains based on the corpus . |
| Outcome: | The proposed dataset consists of 300 news editorials with single and composite metaphors and annotations of the source and target domains for each metaphor. |