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About this paper

Jan Trienes, Sebastian Joseph, Jörg Schlötterer, Christin Seifert, Kyle Lo, Wei Xu, Byron C. Wallace, Junyi Jessy Li

This research introduces INFOLOSSQA, a framework for characterizing and recovering information loss in text simplification through reader-focused Question-Answer pairs. The work provides a linguist-curated dataset of 1,000 QA pairs derived from simplified medical abstracts, and evaluates automatic methods, finding that while LLMs generate accurate answers, consistently identifying human-perceived information loss remains challenging.

Key insights

  • Oversimplification, where information becomes vague or imprecise, is more prevalent (74.1%) than complete deletion (25.9%) in medical text simplification.
  • Human information needs regarding lost details are subjective, with low inter-annotator agreement on precise evidence spans, confirming varied perceptions of what constitutes salient missing information.
  • While LLMs are adept at question generation and answer accuracy, their primary challenge is reliably detecting and precisely characterizing information loss from a human perspective, particularly distinguishing subtle oversimplifications and recalling all human-identified instances.

Summary by alphaXiv.

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