Matthew S. Simpson, Md. Mahmudur Rahman, Srinivas Phadnis, Emilia Apostolova, Dina Demner-Fushman, Sameer K. Antani, George R. Thoma: Text and Content-based Approaches to Image Modality Classification and Retrieval for the ImageCLEF 2011 Medical Retrieval Track. CLEF (Notebook Papers/Labs/Workshop) 2011