Multilingual and Domain-Agnostic Tip-of-the-Tongue Query Generation for Simulated Evaluation

• URL: http://arxiv.org/abs/2604.21096v1
• Date: Wed, 22 Apr 2026 21:34:01 GMT
• Title: Multilingual and Domain-Agnostic Tip-of-the-Tongue Query Generation for Simulated Evaluation
• Abstract summary: We construct multilingual Tip-of-the-Tongue test collections for Chinese, Japanese, Korean, and English.<n>This work provides the first large-scale multilingual ToT benchmark and offers practical guidance for constructing realistic ToT datasets beyond English.
• Score: 45.8965377080842
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Tip-of-the-Tongue (ToT) retrieval benchmarks have largely focused on English, limiting their applicability to multilingual information access. In this work, we construct multilingual ToT test collections for Chinese, Japanese, Korean, and English, using an LLM-based query simulation framework. We systematically study how prompt language and source document language affect the fidelity of simulated ToT queries, validating synthetic queries through system rank correlation against real user queries. Our results show that effective ToT simulation requires language-aware design choices: non-English language sources are generally important, while English Wikipedia can be beneficial when non-English sources provide insufficient information for query generation. Based on these findings, we release four ToT test collections with 5,000 queries per language across multiple domains. This work provides the first large-scale multilingual ToT benchmark and offers practical guidance for constructing realistic ToT datasets beyond English.

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