Text mining device, method thereof, and program

Abstract

Language analysis meansanalyzes texts read from a text DB, and generates a sentence structure as the analysis result. Similar-structure generation adjustment meansgenerates, from an input of an input device, a determination item for determining whether or not the structures are identical every type of differences between the sentence structures. Similar-structure determination adjustment meansgenerates, from an input of the input device, a determination item for determining whether or not the difference between attribute values is ignored every type of attribute values. Similar-structure generating meansgenerates a similar structure of a partial structure forming the sentence structure obtained by language analysis meansin accordance with the determination item from the similar-structure generation adjustment means, and sets the generated similar structure as an equivalent class of the partial structure on the generation source. Frequent-similar-pattern detection meansignores the attribute value in accordance with the determination item given from the similar-structure determination adjustment means, detects the frequent pattern on the basis of a set of equivalent classes from the similar-structure generating means, and outputs the frequent pattern to an output device