L1 norm based multiplication-free cosine similarity measures for big data analysis
International Workshop on Computational Intelligence for Multimedia Understanding, IWCIM 2014
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The cosine similarity measure is widely used in big data analysis to compare vectors. In this article a new set of vector similarity measures are proposed. New vector similarity measures are based on a multiplication-free operator which requires only additions and sign operations. A vector 'product' using the multiplication-free operator is also defined. The new vector product induces the ℓ1-norm. As a result, new cosine measure-like similarity measures are normalized by the ℓ1-norms of the vectors. They can be computed using the MapReduce framework. Simulation examples are presented. © 2014 IEEE.
Cosine similarity measures
Published Version (Please cite this version)http://dx.doi.org/10.1109/IWCIM.2014.7008798
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