PMID- 38464462 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240312 IS - 2047-2501 (Print) IS - 2047-2501 (Electronic) IS - 2047-2501 (Linking) VI - 12 IP - 1 DP - 2024 Dec TI - Autism spectrum disorder detection with kNN imputer and machine learning classifiers via questionnaire mode of screening. PG - 18 LID - 10.1007/s13755-024-00277-8 [doi] LID - 18 AB - Autism spectrum disorder (ASD) is a neurodevelopmental disorder. ASD cannot be fully cured, but early-stage diagnosis followed by therapies and rehabilitation helps an autistic person to live a quality life. Clinical diagnosis of ASD symptoms via questionnaire and screening tests such as Autism Spectrum Quotient-10 (AQ-10) and Quantitative Check-list for Autism in Toddlers (Q-chat) are expensive, inaccessible, and time-consuming processes. Machine learning (ML) techniques are beneficial to predict ASD easily at the initial stage of diagnosis. The main aim of this work is to classify ASD and typical developed (TD) class data using ML classifiers. In our work, we have used different ASD data sets of all age groups (toddlers, adults, children, and adolescents) to classify ASD and TD cases. We implemented One-Hot encoding to translate categorical data into numerical data during preprocessing. We then used kNN Imputer with MinMaxScaler feature transformation to handle missing values and data normalization. ASD and TD class data is classified using Support vector machine, k-nearest-neighbor (KNN), random forest (RF), and artificial neural network classifiers. RF gives the best performance in terms of the accuracy of 100% with different training and testing data split for all four types of data sets and has no over-fitting issue. We have also examined our results with already published work, including recent methods like Deep Neural Network (DNN) and Convolution Neural Network (CNN). Even using complex architectures like DNN and CNN, our proposed methods provide the best results with low-complexity models. In contrast, existing methods have shown accuracy upto 98% with log-loss upto 15%. Our proposed methodology demonstrates the improved generalization for real-time ASD detection during clinical trials. CI - (c) The Author(s), under exclusive licence to Springer Nature Switzerland AG 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. FAU - Shrivastava, Trapti AU - Shrivastava T AUID- ORCID: 0000-0001-8455-282X AD - Department of Information Technology, Indian Institute of Information Technology, Allahabad, Prayagraj, Uttar Pradesh 211015 India. FAU - Singh, Vrijendra AU - Singh V AD - Department of Information Technology, Indian Institute of Information Technology, Allahabad, Prayagraj, Uttar Pradesh 211015 India. FAU - Agrawal, Anupam AU - Agrawal A AD - Department of Information Technology, Indian Institute of Information Technology, Allahabad, Prayagraj, Uttar Pradesh 211015 India. LA - eng PT - Journal Article DEP - 20240306 PL - England TA - Health Inf Sci Syst JT - Health information science and systems JID - 101638060 PMC - PMC10917726 OTO - NOTNLM OT - Artificial neural network OT - Autism spectrum disorder OT - K-nearest neighbor OT - Questionnaire mode of screening OT - Random forest OT - Support vector machine OT - kNN imputer COIS- Conflict of interestThe authors have no competing interests relevant to the content of this work. EDAT- 2024/03/11 06:43 MHDA- 2024/03/11 06:44 PMCR- 2025/12/01 CRDT- 2024/03/11 04:35 PHST- 2023/02/16 00:00 [received] PHST- 2024/01/17 00:00 [accepted] PHST- 2025/12/01 00:00 [pmc-release] PHST- 2024/03/11 06:44 [medline] PHST- 2024/03/11 06:43 [pubmed] PHST- 2024/03/11 04:35 [entrez] AID - 277 [pii] AID - 10.1007/s13755-024-00277-8 [doi] PST - epublish SO - Health Inf Sci Syst. 2024 Mar 6;12(1):18. doi: 10.1007/s13755-024-00277-8. eCollection 2024 Dec.