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by Ton Ngo, Winnie Tsang | Published October 6, 2017
Learn how to build your own data set and train a model for image classification. The models are available in TensorFlow and are run on a Kubernetes cluster. The demo code pulls data and labels from The Metropolitan Museum of Art website and Google BigQuery. The IBM Cloud Kubernetes Service provides the Kubernetes cluster. Modify the code to build different image data sets and select from a collection of public models, such as Inception, VGG, ResNet, AlexNet, and MobileNet.
Humans have an uncanny ability to process visual information. With one quick glance at a photo, we can understand what is in the scene and act accordingly. Giving computers this ability, however, has been challenging, but there is a wide range of potential use – from tagging your Facebook friends in a photo to recognizing cancer from a photo of a skin condition. Image recognition has been an active area of research and development for many years. Recent advances in deep learning have brought significant improvements to image recognition and classification, to the degree that many neural network models are now available and offer state-of-the-art performance. If your application requires recognizing characteristics of an image, you can leverage one of these models to train and deploy a neural network to serve your application.
To explain this process in practice, in this pattern, we will use deep learning to train an image classification model. Specifically, we will use data from the art collection at The Metropolitan Museum of Art and metadata from Google BigQuery. We will use the Inception model implemented in TensorFlow, and we will run the training on a Kubernetes cluster. We save the trained model and load it later to perform inference. To use the model, we provide as input a picture of a painting, and the model will return the likely culture – Italian Florentine art, for instance. You can adapt the data by choosing some other attributes to classify the art collection, such as author, time period, etc. You can choose an entirely different source of data, or a different category for classification, along with different ways to create the labels. You can also choose other models, such as VGG, ResNet, AlexNet, MobileNet, etc.
Depending on the compute resource available, you can choose the number of images to train, the number of classes to use, and more. For the purpose of showing the full working process, we will select a small set of images and a small number of classes to allow the training to complete within a reasonable amount of time. With a large data set, the training may take days or weeks.
When you have completed this pattern, you will better understand how to:
Ready to put this code pattern to use? Complete details on how to get started running and using this application are in the README.
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