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Aprendizaje Profundo con PyTorch Paso a Paso - Volumen I: Fundamentos

Una Guía para Principiantes

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About the Book

¿Estás buscando un libro con el que puedas aprender sobre aprendizaje profundo y PyTorch sin tener que pasar horas descifrando texto y código críptico? ¿Un libro técnico que sea también legible y entretenido?

¡Aquí lo tienes!

En primer lugar, este libro presenta un enfoque fácil de seguir, estructurado, incremental y de primeros principios para aprender PyTorch.

En segundo lugar, este es un libro bastante informal: está escrito como si tú, el lector, estuviera teniendo una conversación con Daniel, el autor. La idea es que puedas entender bien el tema, por lo que se evita la notación matemática sofisticada tanto como sea posible y se explica todo en lenguaje llano.

En este primer volumen de la serie, conocerás los fundamentos de PyTorch: autograd, clases, datos, cargadores de datos, etc. Desarrollarás, paso a paso, no solo los modelos en sí, sino también tu comprensión sobre ellos.

Cuando termines este libro, tendrás una comprensión completa de los conceptos y herramientas necesarias para comenzar a desarrollar y entrenar tus propios modelos usando PyTorch.

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Author

About the Authors

Daniel Voigt Godoy

Daniel has been teaching machine learning and distributed computing technologies at Data Science Retreat, the longest-running Berlin-based bootcamp, for more than three years, helping more than 150 students advance their careers.

He writes regularly for Towards Data Science. His blog post "Understanding PyTorch with an example: a step-by-step tutorial" reached more than 220,000 views since it was published.

The positive feedback from the readers resulted in an invitation to speak at the Open Data Science Conference (ODSC) Europe in 2019. It also motivated him to write the book "Deep Learning with PyTorch Step-by-Step", which covers a broader range of topics.

Daniel is also the main contributor of two python packages: HandySpark and DeepReplay.

His professional background includes 20 years of experience working for companies in several industries: banking, government, fintech, retail and mobility.

Leanpub Podcast

Episode 221

An Interview with Daniel Voigt Godoy

Jesús Martínez-Blanco

Jesús has a PhD in Physics from Universidad Autónoma de Madrid. As a scientist, he worked in several laboratories in the field of nanotechnology.

Following his passion for data modelling and automation, he turned into a data scientist at the end of 2015, working in industries like online marketing and mobility.

He is currently Principal Data Scientist at FlixBus, Europe’s largest long-distance bus provider. He is also teacher and mentor at Data Science Retreat, where he teaches courses on Interactive Data Visualisation using web technologies.

Contents

Table of Contents

  • Prefacio
  • Acerca de los Autores
  • Preguntas Frecuentes
    • ¿Por qué PyTorch?
    • ¿Por qué Este Libro?
    • ¿Quién Debería Leer Este Libro?
    • ¿Qué Necesito Saber?
    • Cómo Leer Este Libro
    • ¿Qué es lo Siguiente?
  • Guía de Configuración
    • Repositorio Oficial
    • Entornos de Programación
      • Google Colab
      • Binder
      • Instalación Local
    • Seguimos
  • Capítulo 0: Visualizando el Descenso de Gradiente
    • Visualizando el Descenso de Gradiente
    • Modelo
    • Generación de Datos
    • Paso 0 - Inicialización aleatoria
    • Paso 1 - Calcular las Predicciones del Modelo
    • Paso 2 - Calcular la Pérdida (Loss)
    • Paso 3 - Calcular los Gradientes
    • Paso 4 - Actualizar los Parámetros
    • Paso 5 - ¡Aclarar y repetir!
  • Capítulo 1: Un Problema Sencillo de Regresión
    • Un Problema Sencillo de Regresión
    • Generación de datos
    • Regresión Lineal en Numpy
    • PyTorch
    • Autograd
    • Grafo Computacional Dinámico
    • Optimizador
    • Pérdida (Loss)
    • Modelo
  • Capítulo 2: Repensar el Bucle de Entrenamiento
    • Repensar el Bucle de Entrenamiento
    • Conjunto de Datos (Dataset)
    • Cargador de Datos (DataLoader)
    • Evaluación
    • TensorBoard
    • Guardar y Cargar Modelos
  • Capítulo 2.1: Vayamos con Clase
    • Vyamos con Clase
      • La Clase
      • El Constructor
      • Entrenamiento de Modelos
      • Guardar y Cargar Modelos
      • Métodos de Visualización
      • El Código Completo
    • Todos los Pasos, con Clase
      • Entrenamiento del Modelo
      • Haciendo Predicciones
      • Checkpointing
      • Retomando el Entrenamiento
  • Capítulo 3: Un Problema Sencillo de Clasificación
    • Un Problema Sencillo de Clasificación
    • Generación de Datos
    • Preparación de Datos
    • Modelo
    • Pérdida (Loss)
      • BCELoss
      • BCEWithLogitsLoss
      • Conjunto de Datos Desequilibrado
    • Configuración del Modelo
    • Entrenamiento de Modelos
    • Frontera de Decisión
    • Umbral de Clasificación
      • Matriz de Confusión
      • Métricas
      • Equilibrios y Curvas

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