Context-Aware Hierarchical Merging for Long Document Summarization (2025.findings-acl)
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| Challenge: | Hierarchical merging is a technique used to summarize very long texts . it can amplify LLM hallucinations, increasing the risk of factual inaccuracies . |
| Approach: | They propose to enrich hierarchical merging with context from the source document to reduce the risk of factual inaccuracies. |
| Outcome: | The proposed methods outperform zero-shot and hierarchical merging baselines on legal and narrative datasets. |
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