Rosella Galindo Esparza


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Improving Low-resource Question Answering by Augmenting Question Information
Andong Chen | Yuan Sun | Xiaobing Zhao | Rosella Galindo Esparza | Kehai Chen | Yang Xiang | Tiejun Zhao | Min Zhang
Findings of the Association for Computational Linguistics: EMNLP 2023

In the era of large models, low-resource question-answering tasks lag, emphasizing the importance of data augmentation - a key research avenue in natural language processing. The main challenges include leveraging the large model’s internal knowledge for data augmentation, determining which QA data component - the question, passage, or answer - benefits most from augmentation, and retaining consistency in the augmented content without inducing excessive noise. To tackle these, we introduce PQQ, an innovative approach for question data augmentation consisting of Prompt Answer, Question Generation, and Question Filter. Our experiments reveal that ChatGPT underperforms on the experimental data, yet our PQQ method excels beyond existing augmentation strategies. Further, its universal applicability is validated through successful tests on high-resource QA tasks like SQUAD1.1 and TriviaQA.


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Embodied Interaction in Mental Health Consultations: Some Observations on Grounding and Repair
Jing Hui Law | Patrick Healey | Rosella Galindo Esparza
Proceedings of the 2022 CLASP Conference on (Dis)embodiment

Shared physical space is an important resource for face-to-face interaction. People use the position and orientation of their bodies—relative to each other and relative to the physical environment—to determine who is part of a conversation, to manage conversational roles (e.g. speaker, addressee, side-participant) and to help co-ordinate turn-taking. These embodied uses of shared space also extend to more fine-grained aspects of interaction, such as gestures and body movements, to support topic management, orchestration of turns and grounding. This paper explores the role of embodied resources in (mis)communication in a corpus of mental health consultations. We illustrate some of the specific ways in which clinicians and patients can exploit embodiment and the position of objects in shared space to diagnose and manage moments of misunderstanding.