cTAKES 使用的 UMLS 和 SNOMED-CT 词汇表到底是什么?

What exactly are the UMLS and SNOMED-CT vocabularies used by cTAKES?

对 cTAKES 很陌生,通过 docs, curious about what exactly the UMLS and SNOMEDCT "vocabularies" are. The user installation docs don't really seem to tell and simply applying for the UMLS license and the language around UMLS Metathesaurus 并没有真正透露更多关于被访问数据的结构。例如。是在线 API 服务吗? cTAKES 下载附带的某些文件是否只能使用针对在线数据库检查的有效 UMLS 密码解锁?

关于什么是 UMLS Metathesaurus 和 SNOMEDCT 的信息可以在这里找到 (https://www.nlm.nih.gov/research/umls/knowledge_sources/metathesaurus/index.html) and here (https://www.ncbi.nlm.nih.gov/books/NBK9676/, specifically https://www.ncbi.nlm.nih.gov/books/NBK9684/):

The Metathesaurus is a very large, multi-purpose, and multi-lingual [relational?] vocabulary database that contains information about biomedical and health related concepts, their various names, and the relationships among them. Designed for use by system developers...

...The Metathesaurus contains concepts, concept names, and other attributes from more than 100 terminologies, classifications, and thesauri, some in multiple editions.

虽然我不确定cTAKES到底是如何实现它对UMLS Metathesaurus的使用的(有知道的请指教),我假设它正在访问一些API用于基于UMLS的关系数据库您需要将凭据添加到 cTAKES 下载附带的示例脚本中(请参阅 https://cwiki.apache.org/confluence/display/CTAKES/cTAKES+4.0+User+Install+Guide#cTAKES4.0UserInstallGuide-(Recommended)AddUMLSaccessrights)。

...You may select from two relational formats: the Rich Release Format (RRF), introduced in 2004, and the Original Release Format (ORF).

(我认为)这就是用于为处理文本的 UIMA 分析引擎提供动力的东西 in cTAKES

UIMA is an architecture in which basic building blocks called Analysis Engines (AEs) are composed in order to analyze a document [...] How Annotators represent and share their results is an important part of the UIMA architecture. To enable composition and reuse, UIMA defines a Common Analysis Structure (CAS) precisely for these purposes. The CAS is an object-based container that manages and stores typed objects having properties and values, https://www.ibm.com/developerworks/data/downloads/uima/#How-does-it-work