title: Comparing fusion techniques for the ImageCLEF 2013 medical case retrieval task.
abstract: Retrieval systems can supply similar cases with a proven diagnosis to a new example case under observation to help clinicians during their work. The ImageCLEFmed evaluation campaign proposes a framework where research groups can compare case-based retrieval approaches. This paper focuses on the case-based task and adds results of the compound figure separation and modality classification tasks. Several fusion approaches are compared to identify the approaches best adapted to the heterogeneous data of the task. Fusion of visual and textual features is analyzed, demonstrating that the selection of the fusion strategy can improve the best performance on the case-based retrieval task.
authors.affiliation: University of Applied Sciences Western Switzerland (HES-SO), Sierre, Switzerland. Electronic address: alba.garcia@hevs.ch.
authors.forename: Alba
authors.initials: A
authors.lastname: G Seco de Herrera
authors.affiliation: University of Applied Sciences Western Switzerland (HES-SO), Sierre, Switzerland. Electronic address: roger.schaer@hevs.ch.
authors.forename: Roger
authors.initials: R
authors.lastname: Schaer
authors.affiliation: University of Applied Sciences Western Switzerland (HES-SO), Sierre, Switzerland. Electronic address: dimitrios.markonis@hevs.ch.
authors.forename: Dimitrios
authors.initials: D
authors.lastname: Markonis
authors.affiliation: University of Applied Sciences Western Switzerland (HES-SO), Sierre, Switzerland. Electronic address: henning.mueller@hevs.ch.
authors.forename: Henning
authors.initials: H
authors.lastname: Müller
mesh_terms: D000465:Algorithms; D001185:Artificial Intelligence; D004282:Documentation / Q000379:methods; D016247:Information Storage and Retrieval / Q000379:methods*; D064847:Multimodal Imaging / Q000379:methods*; D009323:Natural Language Processing; D010363:Pattern Recognition, Automated / Q000379:methods; D011873:Radiology Information Systems / Q000458:organization & administration*; D013382:Subtraction Technique; D009626:Terminology as Topic; D014584:User-Computer Interface; D018875:Vocabulary, Controlled
keywords: ImageCLEF; MedGIFT; Medical case-based retrieval; Multimodal fusion; Visual reranking