1. A method, comprising: recognizing semantic concepts in a set of images and assigning semantic scores for the images to predict a gender of a user; performing gender prediction from visual content and textual content in the images to respectively generate visual-based gender predictions and textual-based gender predictions; and combining, using multimodal information fusion, the visual-based gender predictions, the textual-based gender predictions, and the semantic scores, to infer a gender of a user.