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FeatureHashing: Creates a Model Matrix via Feature Hashing with a Formula Interface
Feature hashing, also called as the hashing trick, is a method to transform features of a instance to a vector. Thus, it is a method to transform a real dataset to a matrix. Without looking up the indices in an associative array, it applies a hash function to the features and uses their hash values as indices directly. The method of feature hashing in this package was proposed in Weinberger et al. (2009) <arXiv:0902.2206>. The hashing algorithm is the murmurhash3 from the 'digest' package. Please see the README in <https://github.com/wush978/FeatureHashing> for more information.
Browse package contents
Package details |
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| Author | Wush Wu [aut, cre], Michael Benesty [aut, ctb] |
| Maintainer | Wush Wu <wush978@gmail.com> |
| License | GPL (>= 3) | file LICENSE |
| Version | 0.9.1.5 |
| URL | https://github.com/wush978/FeatureHashing |
| Package repository | View on CRAN |
| Installation |
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