Cross-Document Event-Keyed Summarization

Autor: Walden, William, Kuchmiichuk, Pavlo, Martin, Alexander, Jin, Chihsheng, Cao, Angela, Sun, Claire, Allen, Curisia, White, Aaron Steven
Rok vydání: 2024
Předmět:
Druh dokumentu: Working Paper
Popis: Event-keyed summarization (EKS) requires generating a summary about a specific event described in a document, given the document and an event representation extracted from it. In this work, we extend EKS to the cross-document setting (CDEKS), in which summaries must synthesize information from accounts of the same event given by multiple sources. We introduce SEAMUS (Summaries of Events Across Multiple Sources), a high-quality dataset for CDEKS based on an expert reannotation of the FAMUS dataset for cross-document argument extraction. We present a suite of baselines on SEAMUS, covering both smaller, fine-tuned models, as well as zero- and few-shot prompted LLMs, along with detailed ablations, and a human evaluation study, showing SEAMUS to be a valuable benchmark for this new task.
Databáze: arXiv