Over the last few years, convolutional neural networks (CNN) have risen in popularity, especially in computer vision. Anirudh Koul explains how to bring the power of deep learning to memory- and power-constrained devices like smartphones and drones.
Many mobile applications running on smartphones and wearable devices would potentially benefit from the accuracy of deep learning techniques. Also, local execution allows data to stay on the mobile device, hence avoiding latency issues of data transmission to the cloud and also alleviating privacy concerns. However, CNNs, by nature, are computationally expensive and memory intensive, making them challenging to deploy on a mobile device. Anirudh explores various strategies to circumvent these obstacles and build mobile-friendly shallow CNN architectures to significantly reduce the memory footprint, making CNNs easier to store on a smartphone. By comparing a family of model compression techniques to prune the network size for live image processing, you can build a CNN version optimized for inference on mobile devices. Anirudh also covers practical strategies to preprocess your data in a manner that makes the models more efficient in the real world.
Anirudh showcases these techniques using a real-world project, as well as tips and tricks, to demonstrate how to get started developing your own deep learning application suitable for deployment on storage- and power-constrained mobile devices. Similar techniques can also be applied to make deep neural nets more efficient when deploying in a regular cloud-based production environment, reducing the number of GPUs required and optimizing on cost.
Anirudh Koul is a data scientist at Microsoft. Anirudh brings a decade of applied research experience on petabyte-scale social media datasets, including Facebook, Twitter, Yahoo Answers, Quora, Foursquare, and Bing. He has worked on a variety of machine-learning, natural language processing, and information retrieval-related projects at Yahoo, Microsoft, and Carnegie Mellon University. Adept at rapidly prototyping ideas, Anirudh has won over two dozen innovation, programming, and 24-hour hackathons organized by companies including Facebook, Google, Microsoft, IBM, and Yahoo. He was also the keynote speaker at the 2014 SMX conference in Munich, where he spoke about trends in applying machine learning on big data.
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