
handle: 10576/30632
Approximate Nearest Neighbor (ANN) search has become a popular approach for performing fast and efficient retrieval on very large-scale datasets in recent years, as the size and dimension of data grow continuously. In this paper, we propose a novel vector quantization method for ANN search which enables faster and more accurate retrieval on publicly available datasets. We define vector quantization as a multiple affine subspace learning problem and explore the quantization centroids on multiple affine subspaces. We propose an iterative approach to minimize the quantization error in order to create a novel quantization scheme, which outperforms the state-of-the-art algorithms. The computational cost of our method is also comparable to that of the competing methods.
Approximate nearest neighbors (ANN), Quantization schemes, Clustering algorithms, Iterative methods, Computational costs, Vectors, Quantization errors, Sub-Space Clustering, Vector quantization, large-scale retrieval, Nearest neighbor search, Binary codes, Large-scale datasets, State-of-the-art algorithms
Approximate nearest neighbors (ANN), Quantization schemes, Clustering algorithms, Iterative methods, Computational costs, Vectors, Quantization errors, Sub-Space Clustering, Vector quantization, large-scale retrieval, Nearest neighbor search, Binary codes, Large-scale datasets, State-of-the-art algorithms
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