Abstract: A computer-implemented method for identifying an expression for a target concept, includes: obtaining a set of texts as a target set of texts, with each text being associated with one of images relevant to a target concept. Candidate expressions for the target concept are extracted from the target set of texts. The candidate expressions are characteristic of the target set of texts. Each image relevant to one of the candidate expressions is collected by using an image search engine. A target expression for the target concept is selected from the candidate expressions based on a comparison result of the target concept and the collected images.

Abstract: A computer-implemented method for finding an asymmetric relation between a plurality of target words is disclosed. The method includes preparing a plurality of image sets, each of which includes one or more images relevant to a corresponding one of the plurality of the target words. The method also includes obtaining a plurality of object labels for each of the plurality of image sets. The method further includes computing a representation for each of the plurality of the target words using the plurality of the object labels obtained for each of the plurality of image sets. The method includes further determining whether there is an asymmetric relation between the plurality of the target words using representations computed for the plurality of the target words.

Abstract: A computer-implemented method for finding an asymmetric relation between a plurality of target words is disclosed. The method includes preparing a plurality of image sets, each of which includes one or more images relevant to a corresponding one of the plurality of the target words. The method also includes obtaining a plurality of object labels for each of the plurality of image sets. The method further includes computing a representation for each of the plurality of the target words using the plurality of the object labels obtained for each of the plurality of image sets. The method includes further determining whether there is an asymmetric relation between the plurality of the target words using representations computed for the plurality of the target words.

Abstract: A computer-implemented method for identifying an expression for a target concept, includes: obtaining a set of texts as a target set of texts, with each text being associated with one of images relevant to a target concept. Candidate expressions for the target concept are extracted from the target set of texts. The candidate expressions are characteristic of the target set of texts. Each image relevant to one of the candidate expressions is collected by using an image search engine. A target expression for the target concept is selected from the candidate expressions based on a comparison result of the target concept and the collected images.