In:Profiling Autism Through Language: Lexicogrammar, neurocognition, and machine learning
Sumi Kato
[Not in series 246] 2026
► pp. 26–49
Chapter 3Development of a diagnostic AI-based assessment system using lexicogrammatical features
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Article outline
- 3.1Overview
- 3.2Rationale for a supplemental language-based diagnostic tool
- 3.3Methods
- 3.3.1Corpus as training database and selection of individuals
- 3.3.2The texts
- 3.3.3Diagnostic differentiation by machine learning
- 3.3.3.1Overview and rationale for machine learning approaches
- 3.3.3.2Input
- 3.3.3.3Output and experimental procedure
- 3.3.3.4ASD differentiation model
- 3.3.3.4.1ASD differentiation using tags
- 3.3.3.4.2Differentiation using text
- 3.3.3.4.3Differentiation using tag-and-text combinations
- 3.4Results
- 3.5Diagnostic performance and interpretive implications
- i.Medical transparency
- ii.Path to improved diagnostic accuracy
- iii.Cognitive insights
- 3.6Validity of text selection as a merit of the diagnostic model
- 3.7Limitations and future perspectives
- 3.7.1Verification process and methodological enhancements
- 3.7.2Analysis of false positives and false negatives
- 3.7.3Investigation of influences of comorbid conditions
on lexicogrammatical choices
- 3.8Chapter conclusion
