| Data Taxonomy (several cross-cutting categories): | |
| * Application Domains (this shouldn’t necessarily be a category rather a way to indicate the source of the data) | |
| * Climate data | |
| * SEM image data | |
| * CT scan for objects | |
| * Medical/CT/MRI scan | |
| * Simulation data | |
| * Molecular data | |
| * …. | |
| * Data Type | |
| * Structured Data | |
| * Image data (uniform rectilinear grids) | |
| * Rectilinear grids | |
| * Structured grids (curvilinear) | |
| * AMR (Adaptive Mesh Refinement)? | |
| * Unstructured Data | |
| * Unstructured grids (arbitrary cell types) | |
| * Polygonal data (surfaces, meshes) | |
| * Point clouds | |
| * Specialized Types | |
| * Hyper-tree grids | |
| * Composite/multi-block datasets | |
| * Graph/network data | |
| * Temporal Dimension | |
| * Static/Single-Timestep | |
| * Analysis of a single snapshot | |
| * Spatial patterns only | |
| * Time-Series | |
| * Multiple discrete steps | |
| * Temporal sequences | |
| * Attribute Types (how the data is represented, what information it has) | |
| * Scalar Fields (single value per point/cell) | |
| * Temperature, pressure, density | |
| * Scalars driving isosurfaces, color mapping | |
| * Vector Fields (3-component direction/magnitude) | |
| * Velocity, force, displacement | |
| * Visualized via streamlines, glyphs, and LIC | |
| * Tensor Fields (matrix at each point) | |
| * Stress, strain, diffusion tensors | |
| * Visualized via tensor glyphs, eigenvalue analysis | |
| * Multi-variate/Multi-field/Multi-modal | |
| * Multiple scalar/vector fields | |
| * High-dimensional data visualization by analyzing multiple dimensions all at once | |
| * Data Ensemble | |
| * Multiple runs, parameter sweeps, etc. | |
| Tasks Taxonomy: | |
| Top level: 1) Atomic Operation, 2) Workflow, 3) Scientific Insights | |
| 1) Atomic Operation (individual well-defined operations): | |
| * Extraction & Subsetting (Isolate regions of interest from larger datasets) | |
| * Spatial/temporal Extraction | |
| * Clipping (by plane, box, sphere, implicit function) | |
| * Region selection (by point/cell IDs, bounding box) | |
| * VOI extraction (volume of interest from structured data) | |
| * Value-Based Selection | |
| * Thresholding (scalar range filtering) | |
| * Isocontouring/isosurfacing (constant value extraction) | |
| * Connectivity filtering (connected region extraction) | |
| * Sampling | |
| * Subsampling/decimation (reduce resolution) | |
| * Probing (sampling at specific points) | |
| * Masking (regular/irregular point selection) | |
| * Geometry & Topology Transformation (Change the structure or shape of data without necessarily changing attribute values) | |
| * Geometric Modification | |
| * Translation, rotation, scaling | |
| * Deformation, warping | |
| * Point/vertex manipulation | |
| * Topological Changes | |
| * Triangulation (convert polygons to triangles), Tessellation/subdivision | |
| * Mesh refinement/coarsening | |
| * Cell type conversion | |
| * Boundary extraction (surface from volume) | |
| * Structural Operations | |
| * Merging datasets | |
| * Appending data | |
| * Splitting/partitioning | |
| * Attribute Computation & Derivation (Calculate new data attributes from existing ones) | |
| * Field Derivatives | |
| * Gradient computation | |
| * Divergence, curl, vorticity | |
| * Curvature calculation | |
| * Normal generation | |
| * Scalar Operations | |
| * Arithmetic operations on fields | |
| * Vector magnitude computation | |
| * Component extraction | |
| * Field aggregation/statistics | |
| * Advanced Computations[a] | |
| * Tensor operations (eigenvalues, eigenvectors) | |
| * Interpolation between fields | |
| * Distance computations | |
| * Time-Dependent Processing | |
| * Temporal interpolation | |
| * Particle tracing through time | |
| * Flow integration [b](streamlines, pathlines, streaklines, timelines) | |
| * Temporal statistics/aggregation | |
| * Flow map computation | |
| * Representation & Mapping (Transform data into visual representations) | |
| * Glyph-Based Representation | |
| * Oriented glyphs (arrows, cones) | |
| * Scaled glyphs (size-mapped symbols) | |
| * Tensor glyphs (ellipsoids, superquadrics) | |
| * Volume markers | |
| * Geometric Primitives | |
| * Isosurfaces | |
| * Contour lines/surfaces | |
| * Cut planes/slices | |
| * Ribbons, tubes, streamlines | |
| * Color & Texture Mapping | |
| * Scalar to color mapping | |
| * Texture coordinate generation | |
| * Opacity mapping | |
| * Volume Representations | |
| * Ray casting | |
| * Splatting | |
| * Smoothing & enhancement (Improve data quality or visual appearance) | |
| * Smoothing Operations | |
| * Surface smoothing (Laplacian, Gaussian) | |
| * Data noise reduction | |
| * Interpolation for filling gaps | |
| * Enhancement | |
| * Edge enhancement/detection | |
| * Feature extraction | |
| * Sharpening | |
| * Filtering | |
| * Outlier removal | |
| * Statistical filtering | |
| * View / Rendering Manipulation | |
| * View Changes | |
| * Rotation, zoom, move | |
| * Render Options (should be belong to transformation) | |
| * Light position | |
| * Lighting mode | |
| 2) Workflow (sequence of operations with a clear visualization/analysis goal) | |
| * Data Understanding & Exploration | |
| * Data Characterization (statistics, distributions, quality check) | |
| * Spatial Exploration (slicing, probing, overview generation) | |
| * Feature Discovery (identifying interesting structures/patterns) | |
| * Analysis & Quantification | |
| * Statistical Analysis (descriptive statistics, distributions, correlations) | |
| * Region-Based Measurement (volumes, areas, integrated quantities) | |
| * Profile & Cross-Section Analysis (1D/2D extraction from 3D) | |
| * Derived Quantity Computation (gradients, vorticity, custom fields) | |
| * Feature Extraction & Tracking | |
| * Structure Identification (vortices, shocks, boundaries, topology) | |
| * Feature Characterization (properties, classification, quantification) | |
| * Temporal Tracking (feature evolution, lifecycle, trajectories) | |
| * Comparative & Temporal Analysis | |
| * Multi-Variable Comparison (correlation, coordinated views) | |
| * Temporal Evolution / Comparison (time-series comparison) | |
| * Simulation Comparison (parameter studies, model validation) | |
| * Difference Analysis (error fields, change detection) | |
| * Flow & Transport Analysis[c] | |
| * Trajectory Computation (streamlines, pathlines, streaklines) | |
| * Lagrangian Analysis (particle tracking, residence time, FTLE) | |
| * Transport Quantification (flux, mixing, coherent structures) | |
| * Verification & Validation | |
| * Data Quality Assessment (outliers, artifacts, boundary conditions) | |
| * Code Verification (convergence, analytical comparison, consistency) | |
| * Physical Validation (experimental comparison, uncertainty quantification) | |
| * Data Processing & Optimization | |
| * Data Conditioning (cleaning, smoothing, noise reduction) | |
| * Data Reduction (decimation, sampling, compression) | |
| * Format Conversion & Restructuring (mesh generation, type conversion) | |
| * Parallel & Distributed Processing (HPC workflows, decomposition)[d] | |
| * Uncertainty Quantification & Visualization[e] | |
| * Sensitivity analysis, uncertainty characterization (estimate uncertainty) | |
| * Aggregation and summarization (visualize quantile and interval) | |
| * Communication & Dissemination | |
| * Static Visualization (publication figures, high-resolution images) | |
| * Animation Generation (temporal, spatial, parameter animations) | |
| * Interactive Applications (web/desktop viewers, dashboards) | |
| * Report Generation (automated analysis reports, summaries) | |
| 3) Scientific Insights (analysis or visualization that leads to domain-relevant insights) | |
| * Application-specific questions and insights that can be derived from analysis or visualization | |
| * The result could be: binary decisions, multiple choices, | |
| * Potentially involves different workflow steps | |
| What not to include | |
| * Excessively large dataset (multiple GB to TB level) | |
| * Interaction that ties to a specific tool/interface | |
| * Questions do not have unique and clear answers/ground truth | |
| [a]probably need better title | |
| [b]Move flow integration into its own category of Vector Operations, analogous to Scalar Operations? Streamlines are not time-dependent. Also could include LIC, and maybe FTLE. | |
| [c]There is overlap between this category and previous atomic operations on flow integration (see my earlier comment). | |
| [d]Consider large scale HPC to be out of scope, in order to make the benchmark more broadly accessible? | |
| [e]Group together with V&V? |