Concept Evolution in the NLM CHLAABSC概念的演变主体的个体发育）在NLM chlaabsc.pptVIP

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2018-06-19 发布于福建
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Concept Evolution in the NLM CHLAABSC概念的演变主体的个体发育）在NLM chlaabsc.ppt

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Concept Evolution in the NLM CHLAABSC概念的演变主体的个体发育）在NLM chlaabsc

Concept Evolution (Subject Ontogeny) in the NLM Classification Scheme: a Case Study Outline Schemes Concepts in Schemes Concept Evolution in Schemes Modified Record for Concepts Conclusion Schemes Schemes Classification schemes, controlled vocabularies (indexing languages), ontologies and taxonomies (newer versions of representations not always used as indexing languages, tho’ sharing similar structures and appearance). Schemes Dublin Core calls these encoding schemes [4] Schemes NLM Classification [1] UMLS (Unified Medical Language System) [2] Galen Common Reference Model [3] Concepts in Schemes Concepts in Schemes Schemes are made up of concepts - identified by terms and relationships between terms. The structure of classification schemes allows the user to identify the concept by both terminological access (via index or linked subject headings), or through relationships between concepts. Concept Evolution in Schemes (Subject Ontogeny) Concept Evolution in Schemes Schemes change - they go through revisions, new editions, etc. Concepts change because their relationships change - as do the terms used to identify these concepts. Concept Evolution in Schemes I have metaphorically called this subject ontogeny Based on a biological term for the development of an organism during its lifetime Not a great metaphor Concept Evolution in Schemes Evolution (cancellation here) is deployed in the NLM in order to aid collocation. However, the change splits the materials. Concept Evolution in Schemes As more of our materials are born digital and indexed using digital schemes, we can collocate through various editions - through the evolution of schemes. Further, as more of our users interact with our collections through interfaces, the move value we can add the better we will serve them. Concept Evolution in Schemes If we build structures to aid us in this, we can actually maintain and enhance the purpose of these schemes - collocation. We can also enhance displ