Coffee maturity classification using convolutional neural networks and transfer learning

This work presents a framework for coffee maturity classification from multispectral image data based on Convolutional Neural Networks (CNNs). The system leverages the use of multispectral image acquisition systems that generate large amounts of data, by taking advantage of the ability of CNNs to extract meaningful patterns from very high-dimensional data. We validated the use of five different popular CNN architectures on the classification of cherry coffee fruits according to their ripening stage. The different models were trained on a training dataset balanced in different ways, which resulted in a top accuracy higher than 98% when applied to the classification of 600 coffee fruits in 5 different stages of ripening. This work has the potential of providing the farmer with a high-quality, optimized, accurate and viable method for classifying coffee fruits. In order to foster future research in this area, the data used in this work, which was acquired with a custom-developed multispectral image acquisition system, have been released

Cov-caldas: A new COVID-19 chest X-Ray dataset from state of Caldas-Colombia

The emergence of COVID-19 as a global pandemic forced researchers worldwide in various disciplines to investigate and propose efficient strategies and/or technologies to prevent COVID-19 from further spreading. One of the main challenges to be overcome is the fast and efficient detection of COVID-19 using deep learning approaches and medical images such as Chest Computed Tomography (CT) and Chest X-ray images. In order to contribute to this challenge, a new dataset was collected in collaboration with “S.E.S Hospital Universitario de Caldas” (https://hospitaldecaldas.com/) from Colombia and organized following the Medical Imaging Data Structure (MIDS) format. The dataset contains 7,307 chest X-ray images divided into 3,077 and 4,230 COVID-19 positive and negative images. Images were subjected to a selection and anonymization process to allow the scientific community to use them freely. Finally, different convolutional neural networks were used to perform technical validation. This dataset contributes to the scientific community by tackling significant limitations regarding data quality and availability for the detection of COVID-19. © 2022, The Author(s)

Cervical cancer classification using convolutional neural networks, transfer learning and data augmentation

El cáncer cervical se forma en las células que revisten el cuello uterino y la parte inferior del útero. Debido a razones de costo y baja oferta de servicios destinados a la detección de este tipo de cáncer, muchas mujeres no tienen acceso a un diagnóstico pronto y preciso, ocasionando un inicio tardío del tratamiento. Para dar solución a este problema se implementó una metodología que clasifica de manera automática el tipo de cáncer cervical, entre leve (Tipo 1 y 2) y agresivo (Tipo 3), utilizando técnicas de procesamiento digital de imágenes y aprendizaje profundo. Se trabajó en la construcción de un modelo computacional con base en redes neuronales convolucionales, transferencia de aprendizaje y aumento de datos, obteniendo precisiones de clasificación de hasta 97,35% sobre los datos de validación, asegurando la confiabilidad de los resultados. Con este trabajo se demostró que el diseño propuesto puede ser usado como un complemento para mejorar la eficiencia de las herramientas del diagnóstico asistido del cáncer.Cervical cancer is formed in the cells that line the cervix and the lower part of uterus. Due to the cost and low reasons and low supply of services for the detection of this type of cancer many women do not have access to an early an accurate diagnosis. With the purpose of solving this issue ir was created a certain method that helps us to automatically classify the different types of cervical cancer, such as mild type 1 and 2, and aggressive (type 3), using digital image processing techniques and deep learning. We have a built a computational model based on convolutional neural networks, transfer learning and data increase, which help us obtain a classification accuracy up to 97.35% on the validation data, thus, we can ensure the reliability of the results. With this work it was demonstrated that the proposed design can be used as a complement to improve the tools of the assisted diagnosis of cancer

Clasificación de cáncer cervical usando redes neuronales convolucionales, transferencia de aprendizaje y aumento de datos

El cáncer cervical se forma en las células que revisten el cuello uterino y la parte inferior del útero. Debido a razones de costo y baja oferta de servicios destinados a la detección de este tipo de cáncer, muchas mujeres no tienen acceso a un diagnóstico pronto y preciso, ocasionando un inicio tardío del tratamiento. Para dar solución a este problema se implementó una metodología que clasifica de manera automática el tipo de cáncer cervical, entre leve (Tipo 1 y 2) y agresivo (Tipo 3), utilizando técnicas de procesamiento digital de imágenes y aprendizaje profundo. Se trabajó en la construcción de un modelo computacional con base en redes neuronales convolucionales, transferencia de aprendizaje y aumento de datos, obteniendo precisiones de clasificación de hasta 97,35% sobre los datos de validación, asegurando la confiabilidad de los resultados. Con este trabajo se demostró que el diseño propuesto puede ser usado como un complemento para mejorar la eficiencia de las herramientas del diagnóstico asistido del cáncer

Enhancing Intrusion Detection in IoT Communications Through ML Model Generalization With a New Dataset (IDSAI)

Uno de los campos en los que la Inteligencia Artificial (IA) debe seguir innovando es la seguridad informática. La integración de las Redes Inalámbricas de Sensores (WSN) con el Internet de las Cosas (IoT) crea ecosistemas de superficies atractivas para las intrusiones de seguridad, siendo vulnerables a ataques múltiples y simultáneos. Esta investigación evalúa el rendimiento de técnicas ML supervisadas para la detección de intrusiones basadas en capturas de tráfico de red. Este trabajo presenta un nuevo conjunto de datos equilibrado (IDSAI) con intrusiones generadas en entornos de ataque en un escenario real. Este nuevo conjunto de datos se ha proporcionado con el fin de contrastar la generalización del modelo a partir de diferentes conjuntos de datos. Los resultados muestran que para la detección de intrusos, los mejores algoritmos supervisados son XGBoost, Gradient Boosting, Decision Tree, Random Forest, y Extra Trees, que pueden generar predicciones cuando se entrenan y predicen con diez intrusiones específicas (como ARP spoofing, ICMP echo request Flood, TCP Null, y otras), tanto de forma binaria (intrusión y no intrusión) con hasta un 94% de precisión, como de forma multiclase (diez intrusiones diferentes y no intrusión) con hasta un 92% de precisión. Por el contrario, se alcanza hasta un 90% de precisión para la predicción en el conjunto de datos Bot-IoT utilizando modelos entrenados con el conjunto de datos IDSAI.One of the fields where Artificial Intelligence (AI) must continue to innovate is computer security. The integration of Wireless Sensor Networks (WSN) with the Internet of Things (IoT) creates ecosystems of attractive surfaces for security intrusions, being vulnerable to multiple and simultaneous attacks. This research evaluates the performance of supervised ML techniques for detecting intrusions based on network traffic captures. This work presents a new balanced dataset (IDSAI) with intrusions generated in attack environments in a real scenario. This new dataset has been provided in order to contrast model generalization from different datasets. The results show that for the detection of intruders, the best supervised algorithms are XGBoost, Gradient Boosting, Decision Tree, Random Forest, and Extra Trees, which can generate predictions when trained and predicted with ten specific intrusions (such as ARP spoofing, ICMP echo request Flood, TCP Null, and others), both of binary form (intrusion and non-intrusion) with up to 94% of accuracy, as multiclass form (ten different intrusions and non-intrusion) with up to 92% of accuracy. In contrast, up to 90% of accuracy is achieved for prediction on the Bot-IoT dataset using models trained with the IDSAI dataset.https://scienti.minciencias.gov.co/cvlac/visualizador/generarCurriculoCv.do?cod_rh=0000476030https://orcid.org/[email protected]://scholar.google.com/citations?hl=es&user=9gw2ob4AAAAJhttps://scholar.google.com/citations?hl=es&user=oaXMbzYAAAAJhttps://scholar.google.com/citations?hl=es&user=XihGBWoAAAAJhttps://scholar.google.com/citations?hl=es&user=LmynKr0AAAA

A comparative study of CNN-capsule-net, CNN-transformer encoder, and Traditional machine learning algorithms to classify epileptic seizure

Abstract Introduction Epilepsy is a disease characterized by an excessive discharge in neurons generally provoked without any external stimulus, known as convulsions. About 2 million people are diagnosed each year in the world. This process is carried out by a neurological doctor using an electroencephalogram (EEG), which is lengthy. Method To optimize these processes and make them more efficient, we have resorted to innovative artificial intelligence methods essential in classifying EEG signals. For this, comparing traditional models, such as machine learning or deep learning, with cutting-edge models, in this case, using Capsule-Net architectures and Transformer Encoder, has a crucial role in finding the most accurate model and helping the doctor to have a faster diagnosis. Result In this paper, a comparison was made between different models for binary and multiclass classification of the epileptic seizure detection database, achieving a binary accuracy of 99.92% with the Capsule-Net model and a multiclass accuracy with the Transformer Encoder model of 87.30%. Conclusion Artificial intelligence is essential in diagnosing pathology. The comparison between models is helpful as it helps to discard those that are not efficient. State-of-the-art models overshadow conventional models, but data processing also plays an essential role in evaluating the higher accuracy of the models

Coffee maturity classification using convolutional neural networks and transfer learning

This work presents a framework for coffee maturity classification from multispectral image data based on Convolutional Neural Networks (CNNs). The system leverages the use of multispectral image acquisition systems that generate large amounts of data, by taking advantage of the ability of CNNs to extract meaningful patterns from very high-dimensional data. We validated the use of five different popular CNN architectures on the classification of cherry coffee fruits according to their ripening stage. The different models were trained on a training dataset balanced in different ways, which resulted in a top accuracy higher than 98% when applied to the classification of 600 coffee fruits in 5 different stages of ripening. This work has the potential of providing the farmer with a high-quality, optimized, accurate and viable method for classifying coffee fruits. In order to foster future research in this area, the data used in this work, which was acquired with a custom-developed multispectral image acquisition system, have been release

Coffee maturity classification using convolutional neural networks and transfer learning

This work presents a framework for coffee maturity classification from multispectral image data based on Convolutional Neural Networks (CNNs). The system leverages the use of multispectral image acquisition systems that generate large amounts of data, by taking advantage of the ability of CNNs to extract meaningful patterns from very high-dimensional data. We validated the use of five different popular CNN architectures on the classification of cherry coffee fruits according to their ripening stage. The different models were trained on a training dataset balanced in different ways, which resulted in a top accuracy higher than 98% when applied to the classification of 600 coffee fruits in 5 different stages of ripening. This work has the potential of providing the farmer with a high-quality, optimized, accurate and viable method for classifying coffee fruits. In order to foster future research in this area, the data used in this work, which was acquired with a custom-developed multispectral image acquisition system, have been release

NEGATIVE - MIDS

Negative images in MIDS format

POSITIVE - Tables

Tables describing the distributions of each of the positive images. They contain information such as subject, session, file path, partition (train, dev, test), and image projection (frontal, lateral)