Controlled descriptors and hierarchy used to index PubMed records.
Ask Academica for a report and name this source to scope the search to it.
MEDLINE biomedical abstracts, peer-reviewed clinical studies, and systematic reviews.
Every version uses the same training split and candidate pool. Only the ranking evidence changes.
A fixed equation adds token-to-MeSH association scores.
A small tree model learns how much each explicit feature matters.
The GBM also receives compact coordinates learned from the full MeSH graph.
A hierarchy grows exponentially. Every parent can create several children, which create more descendants.
Equal physical distance represents equal vector distance. Deep branches need increasing area and become crowded.
Available space grows toward the boundary. The disk can separate many descendants while keeping parents nearby.
