1. A text mining device that uses, as analysis target data, data composed of a set of records including an attribute value and text data, the text mining device comprising: an analysis perspective candidate generation unit that extracts an attribute value from the analysis target data and generates an analysis perspective candidate using the extracted attribute value; and a characteristic degree calculation unit that compares text data in a record including the attribute value extracted as the analysis perspective candidate with text data in a record set that includes at least a record other than the record including the attribute value in the analysis target data, and calculates a characteristic degree indicating a relationship between the analysis perspective candidate and the analysis target data based on a result of the comparison.