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Çağatay Demiralp

Researcher at IBM

Publications -  69
Citations -  5996

Çağatay Demiralp is an academic researcher from IBM. The author has contributed to research in topics: Visualization & Data visualization. The author has an hindex of 22, co-authored 66 publications receiving 4466 citations. Previous affiliations of Çağatay Demiralp include Stanford University & Massachusetts Institute of Technology.

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Journal ArticleDOI

The Multimodal Brain Tumor Image Segmentation Benchmark (BRATS)

Bjoern H. Menze, +67 more
TL;DR: The Multimodal Brain Tumor Image Segmentation Benchmark (BRATS) as mentioned in this paper was organized in conjunction with the MICCAI 2012 and 2013 conferences, and twenty state-of-the-art tumor segmentation algorithms were applied to a set of 65 multi-contrast MR scans of low and high grade glioma patients.
Book ChapterDOI

Decision forests for tissue-specific segmentation of high-grade gliomas in multi-channel MR.

TL;DR: The discriminative approach is based on decision forests using context-aware spatial features, and integrates a generative model of tissue appearance, by using the probabilities obtained by tissue-specific Gaussian mixture models as additional input for the forest.
Journal ArticleDOI

Visualizing diffusion tensor MR images using streamtubes and streamsurfaces

TL;DR: Expert feedback from doctors studying changes in white-matter structures after gamma-knife capsulotomy and preoperative planning for brain tumor surgery shows that streamtubes correlate well with major neural structures, the 2D section and geometric landmarks are important in understanding the visualization, and the stereo and interactivity from the virtual environment aid inUnderstanding the complex geometric models.
Proceedings ArticleDOI

Sherlock: A Deep Learning Approach to Semantic Data Type Detection

TL;DR: Sherlock is introduced, a multi-input deep neural network for detecting semantic types that achieves a support-weighted F$_1 score of $0.89, exceeding that of machine learning baselines, dictionary and regular expression benchmarks, and the consensus of crowdsourced annotations.
Journal ArticleDOI

Learning Perceptual Kernels for Visualization Design.

TL;DR: This work introduces perceptual kernels: distance matrices derived from aggregate perceptual judgments, which represent perceptual differences between and within visual variables in a reusable form that is directly applicable to visualization evaluation and automated design.