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U.S. Department of Energy
Office of Scientific and Technical Information

Information retrieval system utilizing wavelet transform

Patent ·
OSTI ID:873019
A method for automatically partitioning an unstructured electronically formatted natural language document into its sub-topic structure. Specifically, the document is converted to an electronic signal and a wavelet transform is then performed on the signal. The resultant signal may then be used to graphically display and interact with the sub-topic structure of the document.
Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA
DOE Contract Number:
AC06-76RL01830;
Assignee:
Battelle Memorial Institute (Richland, WA)
Patent Number(s):
US 6070133
OSTI ID:
873019
Country of Publication:
United States
Language:
English