were new to them, every single subject was able to use them
to their advantage after a small introduction. We found that
the requested information was found faster and more accurate
than searching without the video indexing tools whenever
the students used key-frames, lecture outline or all of
the available features (cf. Fig. 11 and Table 6). The only tool
showing a slower processing speed were the keywords. In
our understanding this is caused by the necessity to scroll
the website down from the video player to the keywords
GUI. Nevertheless, it achieved the best accuracy results as
shown in Table 6.
In the second task, we prepared three multiple choice
and a free-text question for each test video. The total score
for one video is around 12 points. We designed three methods
for the result scoring: