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Welcome to NORMA!
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NORMA is the UNL normalizer. It is expected to normalize knowledge bases, i.e., sets of statements expressed in the UNL KB format. Normalization, in this case, means suppression of redundancies (relations with the same source and target nodes); suppression of tautologies (relations where the source node is the same as the target node); suppression of contradictions (opposite relations between the same nodes, or the same relations between opposite nodes); generalization (replacing a node by a hyper-node, or a relation by a hyper-relation); specification (replacing a hyper-node by a node or a set of nodes, or a hyper-relation by a relation); merge (replacing two nodes by a single node); and division (replacing one node by two or more nodes). The main goal of the system is to organize and consolidate raw knowledge bases. NORMA has been developed by the Library of Alexandria.
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