Build, Scale, and Deploy Deep Learning Pipelines with Ease Using Apache Spark
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The document presents a talk on building, scaling, and deploying deep learning pipelines using Apache Spark, highlighting its advantages over traditional methods. It covers topics such as the workflow of deep learning, the integration of Spark with deep learning libraries, and examples of applying pre-trained models. The presentation emphasizes the simplicity and efficiency of Spark for deep learning tasks, along with future developments in this area.
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- 3. Today • Deep Learning at scale made easy: the vision • Processing images with DL Pipelines • Building simple Deep Learning models with transfer learning • Model deployment via SQL More advanced topics will be covered during the Q&A and other meetups.
- 4. Deep Learning with ease
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- 6. Success of Deep Learning • Tremendous success for applications with complex data • AlphaGo • Image interpretation • Automatictranslation • Speech recognition
- 7. But still requires a lot of effort • Low level APIs with steep learning curve • Tedious to distribute computations • Not well integrated with other enterprise tools • No exact science around deep learning • Success requires many engineer-hours
- 8. Deep Learning in industry • Currently limited adoption • Huge potential beyond the industrial giants • How do we accelerate the road to massive availability?
- 9. A typical Deep Learning workflow • Load data (images, text, time series, …) • Interactive work • Train • Select an architecture for a neural network • Optimize the weights of the NN • Evaluateresults, potentially re-train • Apply: • Pass the data through the NN to produce new features or output
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- 12. Deep Learning Pipelines • Load data • Interactive work • Train • Evaluate model • Apply • Image loading in Spark • Deploying models in SQL • Transfer learning • Distributed tuning • Distributed prediction • Pre-trained models This talk: ✓ ✓ ✓ ✓
- 13. Image processing with DL Pipelines and Databricks
- 14. Adds support for images in Spark • ImageSchema, reader, conversion functions to/from numpy arrays • Most of the tools we’ll describe work on ImageSchema columns from sparkdl import readImages image_df = readImages(sample_img_dir)
- 15. Applying popular models • Popular pre-trained models accessible through MLlib Transformers predictor = DeepImagePredictor(inputCol="image", outputCol="predicted_labels", modelName="InceptionV3") predictions_df = predictor.transform(image_df)
- 16. Applying popular models predictor = DeepImagePredictor(inputCol="image", outputCol="predicted_labels", modelName="InceptionV3") predictions_df = predictor.transform(image_df)
- 17. Fast model training via transfer learning
- 18. Example: Identify the James Bond cars
- 19. DEMO
- 25. SoftMax GIANT PANDA 0.9 RED PANDA 0.05 RACCOON 0.01 … Classifier Transfer Learning DeepImageFeaturizer
- 26. MLlib primer • MLlib: the machine learning library included with Spark • Transformer • Transforms the data: takes a Spark dataframe and appends a new column • Estimator • Produces a model (fit) • Pipeline: sequence of transformers and estimators
- 27. Transfer Learning as a Pipeline MLlib Pipeline Image Loading Preprocessing Logistic Regression DeepImageFeaturizer
- 28. DEMO
- 29. Sharing and exporting Deep Learning models
- 30. Classifier Deep Learning Model Model Export and Sharing
- 31. Shipping predictors in SQL Take a trained model / Pipeline, register a SQL UDF usable by anyone in the organization In Spark SQL: registerKerasUDF(”my_object_recognition_function", keras_model_file="/mymodels/007model.h5") select image, my_object_recognition_function(image) as objects from traffic_imgs
- 32. DEMO
- 33. Conclusion
- 34. Deep Learning without Deep Pockets • Simple API for Deep Learning, integrated with MLlib • Scales common tasks with transformers and estimators • Embeds Deep Learning models in MLlib and SparkSQL • Early release of Deep Learning Pipelines https://github.com/databricks/spark-deep-learning
- 35. Deep Learning Pipelines - future In progress • Hyper-parameter tuning for Keras models • Official image support in Spark • Scala API (Potential) future work • Text models • Support for more backends, e.g. MXNet, PyTorch, BigDL
- 36. Resources Blog posts & webinars — http://databricks.com/blog • Deep Learning Pipelines • GPU acceleration in Databricks • BigDL on Databricks • Deep Learning and Apache Spark Docs for Deep Learning on Databricks — http://docs.databricks.com • Getting started • Deep Learning Pipelines Example • Spark integration
- 39. Thank You! Questions? Happy Sparking & Deep Learning!