| 摘要 |
A discriminative data learning system provided comprises a learning device for updating dictionary data having a template to be used for discriminating the category of a hierarchical structure, and a discriminating device for classifying a pattern into a category with reference to the dictionary data. The learning device includes a learning data storage unit for storing the pattern and the category number of the category, to which the pattern belongs, a dictionary data storage unit for holding the template and the category number, to which the template belongs, a similarity calculating unit for calculating the similarity between the pattern and the template, an update calculating unit for calculating a first update for updating the template, on the basis of the similarity, a weighing unit for multiplying the first update by a weighing constant each determined separately for the hierarchy of the category, to determine a second update, and a dictionary updating unit for updating the template on the basis of the second update. The discriminating device includes a category determining unit for classifying the input pattern having the calculated similarity, into the same category as that of the template having a high similarity.
|
