ResearchBenchmarksOpen-ended conversation on ESConv (out-of-domain)Open-ended conversation on ESConv (out-of-domain)Follow15.62ROUGE-LMP8.402410.276212.1514.0238May 13, 2026Evaluation resultsMethodMethodLinksROUGE-LBLEU-2MPCategory=Prompt-basedCategory=Prompt-based2026.0515.623.36SoVACategory=Retrieval-basedCategory=Retrieval-based2026.05134.32RAGCategory=Retrieval-basedCategory=Retrieval-based2026.0511.463.71DirectCategory=Prompt-basedCategory=Prompt-based2026.0510.163.06ECoTCategory=Prompt-basedCategory=Prompt-based2026.059.671.85PSCategory=Prompt-basedCategory=Prompt-based2026.058.682.01