TRACE: A New Benchmark for Accountable Tourism Recommendations

Researchers have introduced TRACE (Tourism Recommendation with Accountable Citation Evidence), a new benchmark for conversational recommender systems in tourism. Unlike existing CRS benchmarks that rely solely on Recall@k scores, TRACE evaluates multi-turn recommendations with verifiable evidence from review spans and handles rejection recovery. The system recommends points of interest based on multi-aspect preferences such as cuisine, price, atmosphere, and walking distance, providing citations from prior visitors to justify suggestions. This addresses the evaluation gap for trustworthy, verifiable, and adaptive tourism recommendations. The work is detailed in arXiv preprint 2605.07677.