With the objective of helping diagnose some pathologies in recently born babies, we present the experiments and results obtained in the classification of infant cry using a variety of single classifiers, and ensembles from the combination of them. Three kinds of cry were classified: normal, hypoacoustic (deaf), and asphyxia. The feature vectors were formed by the extraction of Mel Frequency Cepstral Coefficients (MFCC). The vectors were then processed and reduced through the application of five statistics operations, namely: minimum, maximum, average, standard deviation and variance. LDA, a data reduction technique is implemented with the purpose of comparing the results of our proposed method. Four supervised machine learning methods including Support Vector Machines, Neural Networks, J48, Random Forest and Naive Bayes are used. The ensembles tested were combinations of these under different approaches like Majority Vote, Staking, Bagging and Boosting.

Purpose: To determine the impact of age at the time of bilateral congenital cataract (BCC) surgery, regarding changes in cognitive, language and motor development, considering the results of visual function. Methods: This is an ambispective descriptive longitudinal study of the evolution of visual acuity and development, using Teller Acuity Cards, Retinoscopy, and the Bayley Scales of Infant and Toddler Development, Third edition. Eight patients with BCC were included to establish the general conditions of onset with longitudinal follow-up after surgery. Patients were divided into two groups, considering the age of treatment (early treatment < 6 months; late treatment > 6 months). We used non-parametric statistics with trend tests in the two groups, using a significance level of p < 0.05. A description of visual development was made through a qualitative analysis. Results: Refractive errors decreased progressively, with a statistically significant difference between both groups (p < 0.01). The cognitive area showed improved outcomes with a significant difference (p = 0.012) in the early treatment group. Conclusions: Late surgical treatment led to severe disturbances in the organization of visual function, as well as in observable behaviors of the motor, cognitive, and language areas, limiting a comprehensive and adequate development of children. It is necessary to implement strategies that include visual rehabilitation and early intervention for developmental disturbances.

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Determinar el impacto de la edad de cirugía en la catarata congénita bilateral (CCB) sobre los cambios en el desarrollo cognitivo, motor y del lenguaje, considerando los resultados de la función visual. Método: Se trata de un estudio descriptivo, longitudinal y ambispectivo de la evolución de la agudeza visual y del desarrollo, que utilizó las cartillas de agudeza visual de Teller, retinoscopia y la Escala de Desarrollo Infantil Bayley III. Fueron incluidos ocho pacientes con CCB para establecer las condiciones generales de inicio, con un seguimiento longitudinal después de la cirugía. Los pacientes fueron divididos en dos grupos según la edad de tratamiento (tratamiento temprano < 6 meses y tratamiento tardío > 6 meses). Se utilizó estadística no paramétrica mediante la prueba de tendencia a través de grupos ordenados utilizando un nivel de significancia de p < 0.05. A través de un análisis cualitativo se realizó una descripción del desarrollo visual. Resultados: El error refractivo disminuyó de manera progresiva y mostró una diferencia estadísticamente significativa entre ambos grupos (p < 0.01). El área cognitiva mostró mejores resultados en el grupo de tratamiento temprano (p = 0.012). Conclusión: El retraso en el tratamiento quirúrgico conduce a graves alteraciones en la organización de la función visual, así como en los comportamientos observables en el área motora, cognitiva y del lenguaje, lo que limita el desarrollo integral y adecuado en el individuo. Es necesaria la implementación de estrategias que incluyan la rehabilitación visual y la intervención temprana de alteraciones del desarrollo.