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Summary of Efficient Approximation Of Earth Mover’s Distance Based on Nearest Neighbor Search, by Guangyu Meng et al.


by Guangyu Meng, Ruyu Zhou, Liu Liu, Peixian Liang, Fang Liu, Danny Chen, Michael Niemier, X.Sharon Hu

First submitted to arxiv on: 14 Jan 2024

Categories

  • Main: Computer Vision and Pattern Recognition (cs.CV)
  • Secondary: Artificial Intelligence (cs.AI)

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GrooveSquid.com Paper Summaries

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Summary difficulty Written by Summary
High Paper authors High Difficulty Summary
Read the original abstract here
Medium GrooveSquid.com (original content) Medium Difficulty Summary
The paper presents a novel approach called NNS-EMD that efficiently approximates Earth Mover’s Distance (EMD), a crucial similarity measure in computer vision and other domains. The traditional EMD calculation is computationally and memory-intensive, hindering its scalability for large-scale problems. Existing approximate EMD algorithms trade accuracy for speed or require manual parameter tuning. NNS-EMD leverages Nearest Neighbor Search to reduce computational costs while maintaining high accuracy. This approach also enables parallel processing and vectorization on GPU, further accelerating the calculation. The authors compare NNS-EMD with exact EMD and state-of-the-art approximate methods on image classification and retrieval tasks, demonstrating superior accuracy, speedup, and memory efficiency.
Low GrooveSquid.com (original content) Low Difficulty Summary
This paper solves a problem in computer vision where a tool called Earth Mover’s Distance (EMD) is used to compare images. The traditional way of calculating EMD is slow and uses too much memory, making it hard to use for large datasets. The authors create a new method called NNS-EMD that quickly calculates EMD while keeping the accuracy high. This approach also lets computers work together in parallel, which helps even more. The paper compares this new method with others on image classification and retrieval tasks, showing that it’s faster and more efficient.

Keywords

» Artificial intelligence  » Image classification  » Nearest neighbor  » Vectorization