String Identity Matching Choices
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Which representations to treat as equivalent (and which not)
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Which components in the WWW architecture to make responsible for equivalences:
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Each individual component that performs a string identity check has to take
equivalences into account (Late Normalization)
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Duplicates and ambiguities are removed as close to their source as possible
(Early Normalization)
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Which way to normalize (in the case that early normalization (2.2) is needed,
even if only in some cases)
