Prieto-Fernández, Natalia
Enhancing ASD detection accuracy: a combined approach of machine learning and deep learning models with natural language processing
Rubio-Martín, Sergio, García-Ordás, María Teresa, Bayón-Gutiérrez, Martín, Prieto-Fernández, Natalia, Benítez-Andrades, José Alberto
Purpose: The main aim of our study was to explore the utility of artificial intelligence (AI) in diagnosing autism spectrum disorder (ASD). The study primarily focused on using machine learning (ML) and deep learning (DL) models to detect ASD potential cases by analyzing text inputs, especially from social media platforms like Twitter. This is to overcome the ongoing challenges in ASD diagnosis, such as the requirement for specialized professionals and extensive resources. Timely identification, particularly in children, is essential to provide immediate intervention and support, thereby improving the quality of life for affected individuals. Methods: We employed natural language processing (NLP) techniques along with ML models like decision trees, extreme gradient boosting (XGB), k-nearest neighbors algorithm (KNN), and DL models such as recurrent neural networks (RNN), long short-term memory (LSTM), bidirectional long short-term memory (Bi-LSTM), bidirectional encoder representations from transformers (BERT and BERTweet).
Weighted Conformal LiDAR-Mapping for Structured SLAM
Prieto-Fernández, Natalia, Fernández-Blanco, Sergio, Fernández-Blanco, Álvaro, Benítez-Andrades, José Alberto, Carro-De-Lorenzo, Francisco, Benavides, Carmen
-- One of the main challenges in simultaneous localization and mapping (SLAM) is real -time processing. High - computational loads linked to data acquisition and processing complicate this task. This article presents an efficient feature extraction approach for mapping structured environments. The proposed methodology, weighted conformal LiDAR-mapping (WCLM), is based on the extraction of polygonal profiles and propagation of uncertainties from raw measurement data. This is achieved using conformal M bius transformation. The algorithm has been validated experimentally using 2 -D data obtained from a low -cost Light Detection and Ranging (LiDAR) range finder. The results obtained suggest that computational efficiency is significantly improved with reference to other state-of -the -art SLAM approaches.