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cs.CL2025
Hierarchical Retrieval with Out-Of-Vocabulary Queries: A Case Study on SNOMED CT
Jonathon Dilworth, Hui Yang, Jiaoyan Chen +2
SNOMED CT is a biomedical ontology with a hierarchical representation, modelling terminological concepts at a large scale. Knowledge retrieval in SNOMED CT is critical for its appl…
cs.AI2025
Language Models as Ontology Encoders
Hui Yang, Jiaoyan Chen, Yuan He +2
OWL (Web Ontology Language) ontologies which are able to formally represent complex knowledge and support semantic reasoning have been widely adopted across various domains such as…
cs.LG2025
RegD: Hierarchical Embeddings via Dissimilarity between Arbitrary Euclidean Regions
Hui Yang, Jiaoyan Chen
Hierarchical data is common in many domains like life sciences and e-commerce, and its embeddings often play a critical role. While hyperbolic embeddings offer a theoretically grou…