Overview of the ImageCLEF 2012 Flickr Photo Annotation and Retrieval Task
Bart Thomée, Adrian Stefan Popescu · CLEF (Online Working Notes/Labs/Workshop) · 2012
ImageCLEF's Flickr Photo Annotation and Retrieval task aims to advance the state of the art in multimedia research by providing a chal- lenging benchmark for visual concept detection, annotation and retrieval in the context of a diverse collection of Flickr photos. The benchmark con- sisted of two separate but closely connected subtasks, where the objective of the first subtask was to accurately detect a wide range of semantic con- cepts for the purpose of automatic image annotation, while the objective of second subtask was to correctly retrieve relevant images for concept- oriented queries inspired by what people actually search for on the inter- net. This paper presents an overview of the benchmark, summarizes the annotation and retrieval techniques proposed by the participating teams and evaluates their performance.