TY - RPRT A1 - Zellhöfer, David T1 - On the Usability of PythiaSearch KW - Pythia Search Y1 - 2012 PB - BTU CY - Cottbus ER - TY - RPRT A1 - Zellhöfer, David T1 - An Evaluation of the Principle of Polyrepresentation in Multimodal and Content-based Image Retrieval Y1 - 2012 PB - BTU CY - Cottbus ER - TY - RPRT A1 - Zellhöfer, David T1 - An Extensible Personal Photograph Collection for Graded Relevance Assessments and USER Simulation Y1 - 2011 PB - BTU CY - Cottbus ER -