Cornerstone: Propbank Frameset Editor Guideline (Version 1.3)
Jinho D. Choi, Claire Bonial, Martha Stone Palmer · 2009
This report gives a guideline of how to use a Propbank frameset editor, Cornerstone. Propbank is a corpus where the arguments of each verb predicate are annotated with their semantic roles in relation to the predicate. Propbank annotation also requires the choice of a sense id (also known as a frameset or roleset id) for each predicate. Therefore, for each predicate in the Propbank, there exists a corresponding frameset file that shows the predicate argument structure of all senses related to the predicate. Since most Propbank annotations are based on the predicate argument structure defined in the frameset files, it is important to keep the files consistent, simple to read as well as easy to update. Up to this point, all frameset files are written in xml format, which provides a well-organized hierarchical structure, but is difficult to edit without making mistakes. Therefore, it is necessary to develop a user-friendly editor such as Cornerstone, that is specifically customized to view, create and edit frameset files. Cornerstone runs platform independently, is light enough to run as an X11 application and supports multiple languages such as Arabic, Chinese, English, Hindi and Korean.