Evaluation of the usefulness of spoken term detection in an electronic note-taking support system

The usefulness of a spoken term detection (STD) technique in an electronic note-taking support system is assessed through a subjective evaluation experiment. In this experiment, while listening to a lecture, subjects recorded electronic notes using the system. They answered questions related to the lecture while browsing the recorded notes. The response time required to correctly answer the questions was measured. When the subjects browsed the notes, half of them used the STD technique and half did not. The experimental results indicate that the subjects who used the STD technique answered all questions faster than those who did not use the STD technique. This indicates that the STD technique worked well in the electronic note-taking system.