Get Creating New Medical Ontologies for Image Annotation: A Case PDF

By Liana Stanescu, Dumitru Dan Burdescu, Marius Brezovan, Cristian Gabriel Mihai

ISBN-10: 1461419085

ISBN-13: 9781461419082

ISBN-10: 1461419093

ISBN-13: 9781461419099

Creating New clinical Ontologies for photograph Annotation makes a speciality of the matter of the scientific photographs automated annotation approach, that's solved in an unique demeanour by means of the authors. the entire steps of this technique are defined intimately with algorithms, experiments and effects. the unique algorithms proposed by means of authors are in comparison with different effective comparable algorithms.

In addition, the authors deal with the matter of constructing ontologies in an automated approach, ranging from clinical topic Headings (MESH). they've got awarded a few effective and proper annotation types and in addition the fundamentals of the annotation version utilized by the proposed approach: pass Media Relevance types. in keeping with a textual content question the approach will retrieve the pictures that include gadgets defined by means of the keywords.

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Extra info for Creating New Medical Ontologies for Image Annotation: A Case Study

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1] where zero signifies no error. The process defines a measure of error at each pixel that is tolerant to refinement as the basis of both measures. A given pixel pi is defined in relation to the segments in S1 and 2 that contain that pixel. As the segments are sets of pixels and one segment is a proper subset of the other, then the pixel lies in an area of refinement, and the local error should be zero. If there is no subset relationship, then the two regions overlap in an inconsistent manner.

Components of an image represent compact regions containing pixels with similar properties. Thus, the set V of vertices of the graph G is partitioned into disjoint sets, each subset representing a distinct visual object of the initial image. As in other graph-based approaches [17], we use the notion of segmentation of the set V. A segmentation, S, of V is a partition of V such that each component C 2 S corresponds to a connected component in a spanning subgraph GS ¼ (V, ES) of G, with ES  E. The set of edges E À ES that are eliminated connects vertices from distinct components.

2, the number of regions resulted from the application of the segmentation can be seen. 3, the GCE values calculated for each algorithm are presented. 4, the LCE values calculated for each algorithm are presented. 1. If two different segmentations arise from different perceptual organizations of the scene, then it is fair to declare the segmentations inconsistent. If, however, segmentation is simply a refinement of the other, then the error should be small, or even zero. The error measures presented in the above tables are calculated in relation with the manual segmentation which is considered true segmentation.

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Creating New Medical Ontologies for Image Annotation: A Case Study by Liana Stanescu, Dumitru Dan Burdescu, Marius Brezovan, Cristian Gabriel Mihai


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