book

AI and ML for Coders in PyTorch

by Laurence Moroney

July 2025

Beginner to intermediate

444 pages

11h 44m

English

O'Reilly Media, Inc.

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Who Should Read This BookWhy I Wrote This BookNavigating This BookTechnology You Need to UnderstandOnline ResourcesConventions Used in This BookUsing Code ExamplesO’Reilly Online LearningHow to Contact UsAcknowledgments
What Is Machine Learning?Limitations of Traditional ProgrammingFrom Programming to LearningWhat Is PyTorch?Using PyTorchInstalling Porch in PythonUsing PyTorch in PyCharmUsing PyTorch in Google ColabGetting Started with Machine LearningSeeing What the Network LearnedSummary
How Computer Vision WorksThe Fashion MNIST DatabaseNeurons for VisionDesigning the Neural NetworkThe Complete CodeTraining the Neural NetworkExploring the Model OutputOverfittingEarly StoppingSummary
ConvolutionsPoolingImplementing Convolutional Neural NetworksExploring the Convolutional NetworkBuilding a CNN to Distinguish Between Horses and HumansThe “Horses or Humans” DatasetHandling the DataCNN Architecture for “Horses or Humans”Adding Validation to the “Horses or Humans” DatasetTesting “Horses or Humans” ImagesImage AugmentationTransfer LearningMulticlass ClassificationDropout RegularizationSummary
Getting Started with DatasetsExploring the FashionMNIST ClassGeneric Dataset ClassesImageFolderDatasetFolderFakeDataUsing Custom SplitsThe ETL Process for Managing Data in Machine LearningOptimizing the Load PhaseUsing the DataLoader ClassBatchingShufflingParallel Data LoadingCustom Data SamplingParallelizing ETL to Improve Training PerformanceSummary
Encoding Language into NumbersGetting Started with TokenizationTurning Sentences into SequencesRemoving Stopwords and Cleaning TextStripping Out HTML TagsStripping Out StopwordsStripping Out PunctuationWorking with Real Data SourcesGetting Text DatasetsGetting Text from CSV FilesGetting Text from JSON FilesSummary
Establishing Meaning from WordsA Simple Example: Positives and NegativesGoing a Little Deeper: VectorsEmbeddings in PyTorchBuilding a Sarcasm Detector by Using EmbeddingsReducing Overfitting in Language ModelsPutting It All TogetherUsing the Model to Classify a SentenceVisualizing the EmbeddingsUsing Pretrained EmbeddingsSummary
The Basis of RecurrenceExtending Recurrence for LanguageCreating a Text Classifier with RNNsStacking LSTMsUsing Pretrained Embeddings with RNNsSummary
Turning Sequences into Input SequencesCreating the ModelGenerating TextPredicting the Next WordCompounding Predictions to Generate TextExtending the DatasetImproving the Model ArchitectureEmbedding DimensionsInitializing the LSTMsVariable Learning RateImproving the DataCharacter-Based EncodingSummary

Common Attributes of Time SeriesTrendSeasonalityAutocorrelationNoiseTechniques for Predicting Time SeriesNaive Prediction to Create a BaselineMeasuring Prediction AccuracyLess Naive Predictions: Using a Moving Average for PredictionImproving the Moving-Average AnalysisSummary
Creating a Windowed DatasetCreating a Windowed Version of the Time Series DatasetCreating and Training a DNN to Fit the Sequence DataEvaluating the Results of the DNNTuning the Learning RateSummary
Convolutions for Sequence DataCoding ConvolutionsExperimenting with the Conv1D HyperparametersUsing NASA Weather DataReading GISS Data in PythonUsing RNNs for Sequence ModelingExploring a Larger DatasetUsing Other Recurrent MethodsUsing DropoutUsing Bidirectional RNNsSummary
TensorsImage DataText DataTensors Out of a ModelSummary
Introducing TorchServeSetting Up TorchServePreparing Your EnvironmentSetting Up Your config.properties FileDefining Your ModelCreating the Handler FileCreating the Model ArchiveStarting the ServerTesting InferenceGoing FurtherServing with FlaskCreating an Environment for FlaskCreating a Flask Server in PythonSummary
The Hugging Face HubUsing Hugging Face HubUsing a Model From Hugging Face HubPyTorch HubUsing PyTorch Vision ModelsNatural Language ProcessingOther ModelsSummary
Understanding TransformersEncoder ArchitecturesThe Decoder ArchitectureThe Encoder-Decoder ArchitectureThe transformers APIGetting Started with transformersCore ConceptsPipelinesTokenizersSummary
Fine-Tuning an LLMSetup and DependenciesLoading and Examining the DataInitializing the Model and TokenizerPreprocessing the DataCollating the DataDefining MetricsConfiguring TrainingInitializing the TrainerTraining and EvaluationSaving and Testing the ModelPrompt-Tuning an LLMPreparing the DataCreating the Data LoadersDefining the ModelTraining the ModelEvaluation During TrainingReporting Training MetricsSaving the Prompt EmbeddingsPerforming Inference with the ModelSummary
Getting Started with OllamaRunning Ollama as a ServerBuilding an App that Uses an Ollama LLMThe ScenarioBuilding a Python Proof-of-ConceptCreating a Web App for OllamaThe app.js FileThe Index.html FileSummary
What Is RAG?Getting Started with RAGUnderstanding SimilarityCreating the DatabasePerforming a Similarity SearchPutting It All TogetherUsing RAG Content with an LLMExtending to Hosted ModelsSummary
What Are Diffusion Models?Using Hugging Face DiffusersImage-to-Image with DiffusersInpainting with DiffusersSummary
Training a LoRA with DiffusersGetting DiffusersGetting Data for Fine-Tuning a LoRAFine-Tuning a Model with DiffusersPublishing Your ModelGenerating an Image with the Custom LoRASummary

Overview

Eager to learn AI and machine learning but unsure where to start? Laurence Moroney's hands-on, code-first guide demystifies complex AI concepts without relying on advanced mathematics. Designed for programmers, it focuses on practical applications using PyTorch, helping you build real-world models without feeling overwhelmed.

From computer vision and natural language processing (NLP) to generative AI with Hugging Face Transformers, this book equips you with the skills most in demand for AI development today. You'll also learn how to deploy your models across the web and cloud confidently.

Gain the confidence to apply AI without needing advanced math or theory expertise
Discover how to build AI models for computer vision, NLP, and sequence modeling with PyTorch
Learn generative AI techniques with Hugging Face Diffusers and Transformers