{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,25]],"date-time":"2026-03-25T19:19:53Z","timestamp":1774466393630,"version":"3.50.1"},"reference-count":63,"publisher":"MIT Press","license":[{"start":{"date-parts":[[2025,7,2]],"date-time":"2025-07-02T00:00:00Z","timestamp":1751414400000},"content-version":"vor","delay-in-days":182,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["direct.mit.edu"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2025,6,27]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Low-resource taxonomy completion aims to automatically insert new concepts into the existing taxonomy, in which only a few in-domain training samples are available. Recent studies have achieved considerable progress by incorporating prior knowledge from pre-trained language models (PLMs). However, these studies tend to overly rely on such knowledge and neglect the shareable knowledge across different taxonomies. In this paper, we propose TaxoPro, a plug-in LoRA-based cross-domain method, that captures shareable knowledge from the high- resource taxonomy to improve PLM-based low-resource taxonomy completion techniques. To prevent negative interference between domain-specific and domain-shared knowledge, TaxoPro decomposes cross- domain knowledge into domain-shared and domain-specific components, storing them using low-rank matrices (LoRA). Additionally, TaxoPro employs two auxiliary losses to regulate the flow of shareable knowledge. Experimental results demonstrate that TaxoPro improves PLM-based techniques, achieving state-of-the-art performance in completing low-resource taxonomies. Code is available at https:\/\/github.com\/cyclexu\/TaxoPro.<\/jats:p>","DOI":"10.1162\/tacl_a_00755","type":"journal-article","created":{"date-parts":[[2025,7,2]],"date-time":"2025-07-02T20:07:03Z","timestamp":1751486823000},"page":"557-576","update-policy":"https:\/\/doi.org\/10.1162\/mitpressjournals.corrections.policy","source":"Crossref","is-referenced-by-count":1,"title":["TaxoPro: A Plug-In LoRA-based Cross-Domain Method for Low-Resource Taxonomy Completion"],"prefix":"10.1162","volume":"13","author":[{"given":"Hongyuan","family":"Xu","sequence":"first","affiliation":[{"name":"TMCC & TBI Center, College of Computer Science, Nankai University, Tianjin, China. xuhongyuan@dbis.nankai.edu.cn"}]},{"given":"Yuhang","family":"Niu","sequence":"additional","affiliation":[{"name":"TMCC & TBI Center, College of Computer Science, Nankai University, Tianjin, China. niuyuhang@dbis.nankai.edu.cn"}]},{"given":"Ciyi","family":"Liu","sequence":"additional","affiliation":[{"name":"TMCC & TBI 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