Given the task definition and input, reply with output. In this task, you will be presented with a context from an academic paper and a question separated with a
. You have to answer the question based on the context.

To evaluate the performance of our approach, we used a subset of the SNIPS BIBREF12 dataset, which is readily available in RASA nlu format. We use accuracy of intent and entity recognition as our task and metric.
Question: How are their changes evaluated?
The changes are evaluated based on accuracy of intent and entity recognition on SNIPS dataset