Disclose this label clustering device and method library on associated label. The label cluster device population of content including identical content to one of that related label given, it is from two each associated labels to (relevant label to) each each mapping of extract, its connective marker figure component (relevant label figure component), label in mapping process, from frequency abstraction component (decimation in frequency module) associated label, weight matrix, with one weight matrix of generation based on associated label to the frequency of electricity generation module (weight matrix generation module), with for by extract with pair the weight matrix of frequency of appearance of the identical label of associated those of the unique tag extraction of a threshold frequency or more include a label cluster module, it is used to generate a label cluster (cluster label) (label cluster module). Particularly, associated label mapping module extracts correlation tag pairing to be considered indicating a label of label, indicates that synonymous label, short bonmal show a different pronunciation of the identical foreign words for label having the same respectively. Search results improvement based on label is that through the invention, it improves the performance of navigation information using the semantic relation of label.
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