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These numbers are then used as nominal features.
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Include certain basic or nominal features, such as a minimum width of 48 inches (1200 mm), tread of 10.5 inches (275 mm), and a height of the riser or step of approximately 7-to-8 inches 175-to-200 175-to-200 175-to-200
The CheS-Mapper application distinguishes between numerical and nominal features.
Nominal features separate compounds into distinct categories (e.g. a nominal feature representing an activity could have values active, moderately-active, inactive).
This type of information represents nominal features and enables the use of simple similarity functions.
This generates 97 nominal features with a minimum frequency of 10.
The hashing step is also useful to obtain nominal features for fast comparisons.
Highlighting of nominal features assigns a distinct color to each value.
A well-known similarity metric for nominal features is the Tanimoto coefficient.
The procedures to create new synthetic instances for continuous features and nominal features are different.
Note that NB assumes nominal features, which means that numerical features must be discretized prior to running NB. k-nearest neighbor (kNN, [ 11]) classifies a new instance as the majority class of its k closest training instances in the feature space.
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