{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,19]],"date-time":"2026-05-19T15:05:41Z","timestamp":1779203141397,"version":"3.51.4"},"publisher-location":"Stroudsburg, PA, USA","reference-count":0,"publisher":"Association for Computational Linguistics","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025]]},"DOI":"10.18653\/v1\/2025.acl-long.761","type":"proceedings-article","created":{"date-parts":[[2025,8,4]],"date-time":"2025-08-04T09:54:03Z","timestamp":1754301243000},"page":"15629-15644","source":"Crossref","is-referenced-by-count":1,"title":["IRT-Router: Effective and Interpretable Multi-LLM Routing via Item Response Theory"],"prefix":"10.18653","author":[{"given":"Wei","family":"Song","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhenya","family":"Huang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cheng","family":"Cheng","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Weibo","family":"Gao","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bihan","family":"Xu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"GuanHao","family":"Zhao","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fei","family":"Wang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Runze","family":"Wu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1643","event":{"name":"Proceedings of the 63rd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)","location":"Vienna, Austria","start":{"date-parts":[[2025,7]]},"end":{"date-parts":[[2025,7]]}},"container-title":["Proceedings of the 63rd Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)"],"original-title":[],"deposited":{"date-parts":[[2025,8,4]],"date-time":"2025-08-04T09:56:46Z","timestamp":1754301406000},"score":1,"resource":{"primary":{"URL":"https:\/\/aclanthology.org\/2025.acl-long.761"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025]]},"references-count":0,"URL":"https:\/\/doi.org\/10.18653\/v1\/2025.acl-long.761","relation":{},"subject":[],"published":{"date-parts":[[2025]]}}}