SIGIR '94 Proceedings of the 17th annual international ACM SIGIR conference on Research and development in information retrieval
A comparison of classifiers and document representations for the routing problem
SIGIR '95 Proceedings of the 18th annual international ACM SIGIR conference on Research and development in information retrieval
BIRCH: an efficient data clustering method for very large databases
SIGMOD '96 Proceedings of the 1996 ACM SIGMOD international conference on Management of data
Hierarchical classification of Web content
SIGIR '00 Proceedings of the 23rd annual international ACM SIGIR conference on Research and development in information retrieval
Data modelling versus ontology engineering
ACM SIGMOD Record
Hierarchically Classifying Documents Using Very Few Words
ICML '97 Proceedings of the Fourteenth International Conference on Machine Learning
Hierarchical Text Classification and Evaluation
ICDM '01 Proceedings of the 2001 IEEE International Conference on Data Mining
Building Hierarchical Classifiers Using Class Proximity
VLDB '99 Proceedings of the 25th International Conference on Very Large Data Bases
Type Classification of Semi-Structured Documents
VLDB '95 Proceedings of the 21th International Conference on Very Large Data Bases
Using Taxonomy, Discriminants, and Signatures for Navigating in Text Databases
VLDB '97 Proceedings of the 23rd International Conference on Very Large Data Bases
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A lot of heterogeneous data must be organized properly to be utilized efficiently, and hierarchical classification based on semantics of data is useful approach to organize data. The semantics of data for the classification attribute is often multiple. When data (objects) are classified to more than one child class, they are duplicated in the terminal classes, that requires the elimination of the duplications when the objects of a class are produced from the terminal classes. When the objects whose semantics is the semantics of a set of classes are required, we have to check that objects are not classified to the other terminal classes. This paper shows methods for these problems, where one of the objects in the child classes is selected to represent the object in the child classes.