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- Tsau Young Lin, Albert Sutojo, Jean-David Hsu
- Sixth IEEE International Conference on Data…
- 2006

The collection of the concepts that are discussed in a document set can be represented by a geometric structure, called simplical complex, of combinatorial topology. A simplex is a high-frequency keyword set that co-occurs closely which, we believe, carries a concept in the document set. The collection of all these simplexes that forms the simplical complex… (More)

- Albert Sutojo
- 2007 IEEE International Conference on Granular…
- 2007

The collection of concepts in a document set can be represented by a geometric structure called simplicial complex of combinatorial topology where each keyword is represented as a vertex and the relation between keywords as simplex. A simplex which consists of more than one keyword is a high-frequency keywordset. These keywords occur close to each other… (More)

- Albert Sutojo
- 2007 IEEE International Conference on Granular…
- 2007

The collection of concepts in a document set can be represented by a geometric structure called simplicial complex of combinatorial topology where each keyword is represented as a vertex and the relation between keywords as simplex. A simplex which consists of more than one keyword is a high-frequency keywordset. These keywords occur close to each other… (More)

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