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Combining Weakly and Webly Supervised Learning for Classifying Food Images

by   Parneet Kaur, et al.
Rutgers University
SRI International

Food classification from images is a fine-grained classification problem. Manual curation of food images is cost, time and scalability prohibitive. On the other hand, web data is available freely but contains noise. In this paper, we address the problem of classifying food images with minimal data curation. We also tackle a key problems with food images from the web where they often have multiple cooccuring food types but are weakly labeled with a single label. We first demonstrate that by sequentially adding a few manually curated samples to a larger uncurated dataset from two web sources, the top-1 classification accuracy increases from 50.3 augment the deep model with Weakly Supervised learning (WSL) that results in an increase in performance to 76.2 provide insights into the performance improvements using the proposed ideas.


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