A Red totalmente conectada, often referred to as a capa densa in redes neuronales, is a foundational architecture in inteligencia artificial and aprendizaje profundo. In this type of network, every neuron in one layer is connected to every neuron in the subsequent layer. This means that the output from each neuron is a weighted sum of all the inputs from the previous layer, followed by the application of an función de activación.
This architecture allows the network to learn complex patterns and representations from the input data. The weights of these connections are adjusted during the training process using algoritmos de optimización such as gradient descent. The fully connected layer is typically found at the end of convolutional networks, where it serves to classify the features extracted by previous layers into specific categories.
One of the main characteristics of fully connected networks is their ability to model non-linear relationships, making them effective for various tasks such as image classification, speech recognition, and procesamiento de lenguaje natural. However, they can also be prone to overfitting, especially when the network is deep or when there is limited training data, as they have a large number of parameters that need to be learned.
En los últimos años, otras arquitecturas como Redes Neuronales Convolucionales (CNNs) and Recurrent Neural Networks (RNNs) have become more popular for specific tasks due to their ability to leverage local patterns and temporal sequences, respectively. Nevertheless, fully connected networks remain an essential building block in the field of machine learning and neural network design.