Download Creating New Medical Ontologies for Image Annotation: A Case by Liana Stanescu, Dumitru Dan Burdescu, Marius Brezovan, PDF

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

Creating New clinical Ontologies for picture Annotation specializes in the matter of the clinical photographs automated annotation strategy, that's solved in an unique demeanour by means of the authors. the entire steps of this strategy are defined intimately with algorithms, experiments and effects. the unique algorithms proposed through authors are in comparison with different effective related algorithms.

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

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The descriptors provided by MeSH are representing the terms that should be taken into account. (d) Defining the classes and the class hierarchy—there are several possible approaches in developing a class hierarchy [11]: – A top-down development process starts with the definition of the most general concepts in the domain and subsequent specialization of the concepts. – A bottom-up development process starts with the definition of the most specific classes, the leaves of the hierarchy, with subsequent grouping of these classes into more general concepts.

16) being determined by the function GENERATEPARTITION at the j-th call. The last segmentation of the subsequence Sf j generated by GENERATEPARTITION is also the input sequence of the (j +1)-th call of GENERATEPARTITION. The first input segmentation Si1 is the final segmentation St of the color-based segmentation algorithm. The function DETERMINEWEIGHTS determines the set A of weights. Algorithm 3: Syntactic-based segmentation More formally, the jth call of the function GENERATEPARTITION, for which the output parameter “newPart” has the value “true,” is associated to the nonempty subsequence Sfj of segmentations, and it generates a sequence of graphs Gij ¼

3 The triangular grid graph constructed on the pseudogravity centers of the hexagonal grid 2. The algorithms for determining the visual objects and their contours are much faster and simpler in this case. We associate to each hexagon h from V two important attributes representing its dominant color and the coordinates of its pseudogravity center, denoted by g(h). The dominant color of a hexagon is denoted by c(h), and it represents the color of the pixel of the hexagon which has the minimum sum of color distance to the other seven pixels.

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