Inverted files versus signature files for text indexing
ACM Transactions on Database Systems (TODS)
Efficient phrase querying with an auxiliary index
SIGIR '02 Proceedings of the 25th annual international ACM SIGIR conference on Research and development in information retrieval
Introduction to Modern Information Retrieval
Introduction to Modern Information Retrieval
Data Cube: A Relational Aggregation Operator Generalizing Group-By, Cross-Tab, and Sub-Totals
Data Mining and Knowledge Discovery
Document Similarity Using a Phrase Indexing Graph Model
Knowledge and Information Systems
Text Cube: Computing IR Measures for Multidimensional Text Database Analysis
ICDM '08 Proceedings of the 2008 Eighth IEEE International Conference on Data Mining
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A Cube Index Model on multidimensional text database and effective study of Online Analytical Processing (OLAP) over such data had been experimented and found to provide good results. We had proposed a cube index model for unstructured text database derived from the text index structures. There are three kinds of hierarchies on it. They are term hierarchy and dimensional hierarchy. This paper proposes the document hierarchy. Two new operations scroll up and scroll down are discussed exclusively for the cube index. The implementation, OLAP execution and query processing on the index are studied. The performance study gives a good guarantee of the model to be used on unstructured text database.