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Unsupervised clustering techniques have been widely applied to flow simulation data to alleviate clutter and occlusion in theresulting visualization. However, there is an absence of systematic guidelines for users to evaluate (both quantitatively and visually) theappropriate clustering technique and similarity measures for streamline and pathline curves. In this work, we provide an overview of anumber of prevailing curve clustering techniques. We then perform a comprehensive experimental study to qualitatively and quantitativelycompare these clustering techniques coupled with popular similarity measures used in the flow visualization literature. Based on ourexperimental results, we derive empirical guidelines for selecting the appropriate clustering technique and similarity measure given therequirements of the visualization task. We believe our work will inform the task of generating meaningful reduced representations forlarge-scale flow data and inspire the continuous investigation of a more refined guidance on clustering technique selection.
This article was published in the following journal.
Name: IEEE transactions on visualization and computer graphics
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HIV treatment simplification is typically indicated for virologically suppressed patients with no baseline resistance-associated mutations (RAMs) or prior virologic failure (VF) to the simplification ...
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The recognition and interpretation of pulsatile subject-specific blood flow is a challenging task. Animations of various quantities - such as blood flow velocity, pressure, or wall shear stress - can ...
Turbines are essential components of jet planes and power plants. Therefore, their efficiency and service life are of central engineering interest. In the case of jet planes or thermal power plants, t...
The aim of the study is collecting clinical data on the learning curve of different surgeons using the EinsteinVision® 3D visualization system in laparoscopic radical prostatectomies.
Spirometry testing should include both expiratory and inspiratory measurements as it may influence the expiratory flow volume curve indices. The ability to inhale medication may by judged...
The primary objective of this study is to describe the relative distances between patient clinical profiles (i.e. patient clustering) in multivariate space.
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The availability of antiretroviral therapy has led to a reduction in morbidity and mortality in patients with chronic HIV infection. The treatment, however, is not free of side effects, ha...
Visualization of the heart structure and cardiac blood flow for diagnostic evaluation or to guide cardiac procedures via techniques including ENDOSCOPY (cardiac endoscopy, sometimes refered to as cardioscopy), RADIONUCLIDE IMAGING; MAGNETIC RESONANCE IMAGING; TOMOGRAPHY; or ULTRASONOGRAPHY.
A statistical means of summarizing information from a series of measurements on one individual. It is frequently used in clinical pharmacology where the AUC from serum levels can be interpreted as the total uptake of whatever has been administered. As a plot of the concentration of a drug against time, after a single dose of medicine, producing a standard shape curve, it is a means of comparing the bioavailability of the same drug made by different companies. (From Winslade, Dictionary of Clinical Research, 1992)
X-ray visualization of the chest and organs of the thoracic cavity. It is not restricted to visualization of the lungs.
The construction or arrangement of a task so that it may be done with the greatest possible efficiency.
Studies determining the effectiveness or value of processes, personnel, and equipment, or the material on conducting such studies. For drugs and devices, CLINICAL TRIALS AS TOPIC; DRUG EVALUATION; and DRUG EVALUATION, PRECLINICAL are available.