Search Results - "Guo, Hanqi"

Z-checker: A framework for assessing lossy compression of scientific data by Tao, Dingwen, Di, Sheng, Guo, Hanqi, Chen, Zizhong, Cappello, Franck

“…Because of the vast volume of data being produced by today’s scientific simulations and experiments, lossy data compressor allowing user-controlled loss of…”
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WYSIWYG (What You See is What You Get) Volume Visualization by Guo, Hanqi, Mao, Ningyu, Yuan, Xiaoru

“…In this paper, we propose a volume visualization system that accepts direct manipulation through a sketch-based What You See Is What You Get (WYSIWYG)…”
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Coupled Ensemble Flow Line Advection and Analysis by Guo, Hanqi, Yuan, Xiaoru, Huang, Jian, Zhu, Xiaomin

“…Ensemble run simulations are becoming increasingly widespread. In this work, we couple particle advection with pathline analysis to visualize and reveal the…”
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Dynamic Load Balancing Based on Constrained K-D Tree Decomposition for Parallel Particle Tracing by Jiang Zhang, Hanqi Guo, Fan Hong, Xiaoru Yuan, Peterka, Tom

“…We propose a dynamically load-balanced algorithm for parallel particle tracing, which periodically attempts to evenly redistribute particles across processes…”
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Scalable Multivariate Volume Visualization and Analysis Based on Dimension Projection and Parallel Coordinates by Guo, Hanqi, Xiao, He, Yuan, Xiaoru

“…In this paper, we present an effective and scalable system for multivariate volume data visualization and analysis with a novel transfer function interface…”
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Extracting, Tracking, and Visualizing Magnetic Flux Vortices in 3D Complex-Valued Superconductor Simulation Data by Hanqi Guo, Phillips, Carolyn L., Peterka, Tom, Karpeyev, Dmitry, Glatz, Andreas

“…We propose a method for the vortex extraction and tracking of superconducting magnetic flux vortices for both structured and unstructured mesh data. In the…”
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Exploring Time-Varying Multivariate Volume Data Using Matrix of Isosurface Similarity Maps by Jun Tao, Imre, Martin, Chaoli Wang, Chawla, Nitesh V., Hanqi Guo, Sever, Gokhan, Seung Hyun Kim

“…We present a novel visual representation and interface named the matrix of isosurface similarity maps (MISM) for effective exploration of large time-varying…”
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Advection-Based Sparse Data Management for Visualizing Unsteady Flow by Guo, Hanqi, Zhang, Jiang, Liu, Richen, Liu, Lu, Yuan, Xiaoru, Huang, Jian, Meng, Xiangfei, Pan, Jingshan

“…When computing integral curves and integral surfaces for large-scale unsteady flow fields, a major bottleneck is the widening gap between data access demands…”
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Online data analysis and reduction: An important Co-design motif for extreme-scale computers by Foster, Ian, Ainsworth, Mark, Bessac, Julie, Cappello, Franck, Choi, Jong, Di, Sheng, Di, Zichao, Gok, Ali M, Guo, Hanqi, Huck, Kevin A, Kelly, Christopher, Klasky, Scott, Kleese van Dam, Kerstin, Liang, Xin, Mehta, Kshitij, Parashar, Manish, Peterka, Tom, Pouchard, Line, Shu, Tong, Tugluk, Ozan, van Dam, Hubertus, Wan, Lipeng, Wolf, Matthew, Wozniak, Justin M, Xu, Wei, Yakushin, Igor, Yoo, Shinjae, Munson, Todd

“…A growing disparity between supercomputer computation speeds and I/O rates means that it is rapidly becoming infeasible to analyze supercomputer application…”
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CECAV-DNN: Collective Ensemble Comparison and Visualization using Deep Neural Networks by He, Wenbin, Wang, Junpeng, Guo, Hanqi, Shen, Han-Wei, Peterka, Tom

“…We propose a deep learning approach to collectively compare two or multiple ensembles, each of which is a collection of simulation outputs. The purpose of…”
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Error-Controlled Lossy Compression Optimized for High Compression Ratios of Scientific Datasets by Liang, Xin, Di, Sheng, Tao, Dingwen, Li, Sihuan, Li, Shaomeng, Guo, Hanqi, Chen, Zizhong, Cappello, Franck

“…Today's scientific simulations require a significant reduction of the data size because of extremely large volumes of data they produce and the limitation of…”
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Finite-Time Lyapunov Exponents and Lagrangian Coherent Structures in Uncertain Unsteady Flows by Hanqi Guo, Wenbin He, Peterka, Tom, Han-Wei Shen, Collis, Scott M., Helmus, Jonathan J.

“…The objective of this paper is to understand transport behavior in uncertain time-varying flow fields by redefining the finite-time Lyapunov exponent (FTLE)…”
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Scalable Multi-variate Analytics of Seismic and Satellite-based Observational Data by Xiaoru Yuan, He Xiao, Hanqi Guo, Peihong Guo, Kendall, W, Jian Huang, Yongxian Zhang

“…Over the past few years, large human populations around the world have been affected by an increase in significant seismic activities. For both conducting…”
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TripVista: Triple Perspective Visual Trajectory Analytics and its application on microscopic traffic data at a road intersection by Hanqi Guo, Zuchao Wang, Bowen Yu, Huijing Zhao, Xiaoru Yuan

“…In this paper, we present an interactive visual analytics system, Triple Perspective Visual Trajectory Analytics (TripVista), for exploring and analyzing…”
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A Prediction‐Traversal Approach for Compressing Scientific Data on Unstructured Meshes with Bounded Error by Ren, Congrong, Liang, Xin, Guo, Hanqi

“…We explore an error‐bounded lossy compression approach for reducing scientific data associated with 2D/3D unstructured meshes. While existing lossy compressors…”
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TopoSZ: Preserving Topology in Error-Bounded Lossy Compression by Yan, Lin, Liang, Xin, Guo, Hanqi, Wang, Bei

“…Existing error-bounded lossy compression techniques control the pointwise error during compression to guarantee the integrity of the decompressed data…”
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Deep transfer learning for military object recognition under small training set condition by Yang, Zhi, Yu, Wei, Liang, Pengwei, Guo, Hanqi, Xia, Likun, Zhang, Feng, Ma, Yong, Ma, Jiayi

“…Convolutional neural network is powerful for general object recognition. However, its excellent performance depends largely on huge training set. Facing task…”
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In situ magnetic flux vortex visualization in time-dependent Ginzburg-Landau superconductor simulations by Hanqi Guo, Peterka, Tom, Glatz, Andreas

“…We present an in situ visualization framework to capture comprehensive details of vortex dynamics in superconductor simulations. Vortices, which determine all…”
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Comparative visualization of vector field ensembles based on longest common subsequence by Liu, Richen, Guo, Hanqi, Zhang, Jiang, Yuan, Xiaoru

“…We propose a longest common subsequence (LCSS)-based approach to compute the distance among vector field ensembles. By measuring how many common blocks the…”
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MSz: An Efficient Parallel Algorithm for Correcting Morse-Smale Segmentations in Error-Bounded Lossy Compressors by Li, Yuxiao, Liang, Xin, Wang, Bei, Qiu, Yongfeng, Yan, Lin, Guo, Hanqi

“…This research explores a novel paradigm for preserving topological segmentations in existing error-bounded lossy compressors. Today's lossy compressors rarely…”
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