AMIA2014 Workflow Poster (Tuesday) Check it with Chex: A Validation Tool for Iterative NLP Development

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5:00 Tuesday

“Chex is a web-based application that can be configured for instance level or classification and extraction NLP system output. NLP system annotations and any associated features are displayed in a user-defined context window from the document. In cases where more context is needed, a single click will pop up the full document text with the annotation information. The interface can be customized by the administrator. In order to simplify management of annotations tasks, Chex is integrated with Business Process Management 2.0 for defining validation workflows, and utilizes a common database schema for reading and writing annotations. Chex uses the open source product Activiti (http://activiti.org/) for its workflow implementation, allowing for flexibility in how processes are defined and used, and following existing process definition standards”

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