Calibrating a Metric for Similarity of Stories against Human Judgement.

The identication of similarity is crucial for reusing expe- rience, where it provides the criterion for which elements to reuse in a given context, and for creativity, where generation of artifacts that are similar to those that already existed is not considered creative. Yet sim- ilarity is dicult to compute between complex artifacts such as stories. The present paper compares the judgment on similarity between stories explained by a human judge with a similarity metric for stories based on plan renements. The need to identify the features that humans con- sider important when judging story similarity is paramount on the road to selecting appropriate metrics for the various tasks.