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<BODY>
This package contains a bunch of approximate string comparators, plus code for
performing controlled experiments with this.
<P>
A {@link com.wcohen.ss.api.StringDistance} is the basic class
for computing distances. The score() function of this class outputs a
distance measure between its two arguments. The other methods are
there for efficiency, so that preprocessing steps (like tokenization)
can be amortized over multiple comparisons with the same string.
<P>
The way that preprocessing steps are saved is by creating a {@link
com.wcohen.ss.api.StringWrapper} object which contains the
preprocessed string, plus whatever else needs to be cached. To do
this, extend default implementation of StringWrapper.
<P>
Almost everything in this package implements StringDistance. The only
(public) exceptions are StringWrapper; PrintfFormat, pilfered from Sun
to make the explanations easier; {@link
com.wcohen.ss.CharMatchScore}, which is a character-based
distance metric; and {@link com.wcohen.ss.MemoMatrix}, a
utility for defining edit-distance-based methods.
</BODY>
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