USAS(UCREL Semantic Analysis System)致力于语义标注任务。能够对文本中的单词或短语赋予特定的语义标签,有21大类语义标注框架。通过语义标注,我们可以深入挖掘文本背后所传达的语义信息,实现对文本语义层面的理解与分析。同样也有免费版供我们使用。 图2-1 2.工作原理与CLAWS类似,USAS同样基于大量的语料进行人工标注和...
Classifying disease outbreak reports using n-grams and semantic features A novel feature of this work is the use of a general purpose semantic tagger – the USAS tagger – to generate features. We outline the application ... M Conway,S Doan,K Ai,... - 《International Journal of Medical In...
Lexicons for the Multilingual UCREL Semantic Analysis System Introduction The UCREL semantic analysis system (USAS) is a framework for undertaking the automatic semantic analysis of text. The framework has been designed and used across a number of research projects since 1990. ...