Precision Health and Medicine by Unknown

Author:Unknown
Language: eng
Format: epub
ISBN: 9783030244095
Publisher: Springer International Publishing

Score name

RMSE

STER

0.6643

CONV

0.7446

DGES

0.4769

EGES

0.8672

Communication (total)

1.5586

EYE

0.6775

EXPO

0.6239

EMO

0.6241

RESP

0.8250

QSOV

0.5321

QSR

0.4133

ARSC

0.8093

Interaction (total)

2.4002

Total

3.5296

RMSEs are 0.66 (STER), 0.74 (CONV), 0.48 (DGES), 0.87 (EGES), 0.62 (EXPO), 0.62 (EMO), 0.83 (RESP), 0.53 (QSOV), 0.41 (QSR) and 0.81 (ARSC) which scores range from 0 to 2. Regarding EYE, which score is either 0 or 2, its RMSE is 0.68. Our system’s errors are almost around these human experts’ thresholds. Regarding the three total scores, RMSEs are 1.56 [Communication (total)], 2.40 [Interaction (total)] and 3.53 (Total). As these are summations of individual scores, the human expert error is required to be within 2.0, 4.0, and 6.0, respectively. Our system’s errors are all below these human experts’ allowance thresholds for these total scores.

An ADOS test consists of several parts. Clinical psychologists have to observe a couple of points for each part to perform their evaluations. For example, in the “puzzle toy assembly” part at the beginning of the ADOS test, they observe how the eye contact and the vocalization are expressed when subjects request puzzle pieces, as clinical psychologists give puzzle pieces to subjects little by little.

Clinical psychologists are required to evaluate the final ADOS scores by checking throughout all of the ADOS parts. However, our result shows that the ADOS scores can be predicted even from an individual part only.

Correlation Coefficient Between ADOS Scores and Features

We also calculated correlation coefficients between the ADOS scores and the feature values in order to find effectiveness for each feature. Table 5 shows the correlation coefficients between the ADOS scores and the features values, where the top two positive and negative correlations are shown. The first remarkable feature is demonstrative vocabulary. The demonstrative vocabulary or demonstrative vocabulary/s appear among the top two of the four ADOS scores in Table 5. Since a negative correlation strongly appeared, subjects have less ASD severity when they use various types of demonstrative vocabulary such as “this ( )”, “that ( )”, “here ( )”, and “there ( )”. This strong correlation is not for the number of demonstrative occurrences but for the number of demonstrative vocabularies. Therefore, the severity is lower if the subject tells their thinking to the clinical psychologist in an appropriate way, using demonstratives properly but not just frequently.Table 5The result of the correlation coefficient between the ADOS scores and all of the features quantity, “/s” means the appearance number divided by interview time length

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