Graphics Reference
In-Depth Information
Fig. 2 Illustration of
experiment
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Self-introductions are made to create an easy speaking atmosphere.
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After watching each emotion evoking video, which lasts several minutes, the
speech signals are recorded from the impressions.
The emotion corresponding to each utterance from the recorded speech signals is
not only self-assessed by the subjects (self-assessment) but also by ten other people
(others-assessment) after the experiment. Therefore, it is possible to evaluate the
degree of the reliability of labeling utterance emotions.
2.2 Data Information
Ninety-six people participated in the experiments, which included 53 males and 43
females ranging from their early 10s to 40s. We provided sample selections to
obtain reliable data in two steps. First, only the samples with the same label
(pleasure or displeasure) based on the self-assessment and others-assessment were
taken into consideration. Second, to maintain a balance in the sample numbers for
each label, we selected 300 utterances with higher rankings by using the others-
assessment, which consisted of 150 utterances as pleasure data and 150 utterances
as displeasure data obtained from 50 participants. Ten specialists put a label for
each utterance in the others-assessment, and the rank for each utterance was cal-
culated on the basis of the ratio of the specialists who gave the same labels that were
consistent with the label set from the self-assessment.
