UQ-DKE's participation at MediaEval 2014 placing Task

In this paper, we describe our approach as part of the MediaEval 2014 Placing Task evaluation. We first identify tags that are most indicative of geographic location by calculating the spatial-aware weighting for all tags in the training set. These weighting are applied to a language model-based retrieval framework. To address the geo-tagging problem, we find the most similar training item and propagate its location to the test item. Base on last year’s experience, we further improve the accuracy by utilizing the geo-location correlation of images/videos uploaded by the same user