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CreatorTitleDescriptionSubjectDate
1 Gerig, GuidoA joint framework for 4D segmentation and estimation of smooth temporal appearance changesMedical imaging studies increasingly use longitudinal images of individual subjects in order to follow-up changes due to development, degeneration, disease progression or efficacy of therapeutic intervention. Repeated image data of individuals are highly correlated, and the strong causality of infor...2014-01-01
2 Berzins, MartinA survey of high level frameworks in block-structured adaptive mesh refinement packagesOver the last decade block-structured adaptive mesh refinement (SAMR) has found increasing use in large, publicly available codes and frameworks. SAMR frameworks have evolved along different paths. Some have stayed focused on specific domain areas, others have pursued a more general functionality, p...2014-01-01
3 Bargteil, Adam WadeAnimation of deformable bodies with quadratic bézier finite elementsIn this article, we investigate the use of quadratic finite elements for graphical animation of deformable bodies.We consider both integrating quadratic elements with conventional linear elements to achieve a computationally efficient adaptive-degree simulation framework as well as wholly quadratic ...2014-01-01
4 Hansen, Charles D.Boundary aware reconstruction of scalar fieldsIn visualization, the combined role of data reconstruction and its classification plays a crucial role. In this paper we propose a novel approach that improves classification of different materials and their boundaries by combining information from the classifiers at the reconstruction stage. Our ap...2014-01-01
5 Regehr, JohnCause reduction for quick testingAbstract-In random testing, it is often desirable to produce a "quick test" - an extremely inexpensive test suite that can serve as a frequently applied regression and allow the benefits of random testing to be obtained even in very slow or oversubscribed test environments. Delta debugging is an alg...2014-01-01
6 Pascucci, ValerioConforming Morse-Smale complexesMorse-Smale (MS) complexes have been gaining popularity as a tool for feature-driven data analysis and visualization. However, the quality of their geometric embedding and the sole dependence on the input scalar field data can limit their applicability when expressing application-dependent features....2014-01-01
7 Whitaker, Ross T.Curve boxplot: Generalization of boxplot for ensembles of curvesIn simulation science, computational scientists often study the behavior of their simulations by repeated solutions with variations in parameters and/or boundary values or initial conditions. Through such simulation ensembles, one can try to understand or quantify the variability or uncertainty in a...2014-01-01
8 Bargteil, Adam WadeDeformation embedding for point-based elastoplastic simulationWe present a straightforward, easy-to-implement, point-based approach for animating elastoplastic materials. The core idea of our approach is the introduction of embedded space-the least-squares best fit of the material's rest state into three dimensions. Nearest neighbor queries in the embedded spa...2014-01-01
9 Riloff, Ellen M.Domain-specific coreference resolution with lexicalized featuresMost coreference resolvers rely heavily on string matching, syntactic properties, and semantic attributes of words, but they lack the ability to make decisions based on individual words. In this paper, we explore the benefits of lexicalized features in the setting of domain-specific coreference reso...2014-01-01
10 Bargteil, Adam WadeDynamic spritesTraditional methods for creating dynamic objects and characters from static drawings involve careful tweaking of animation curves and/or simulation parameters. Sprite sheets offer a more drawing-centric solution, but they do not encode timing information or the logic that determines how objects shou...2014-01-01
11 Gopalakrishnan, GaneshEfficient search for inputs causing high floating-point errorsTools for floating-point error estimation are fundamental to program understanding and optimization. In this paper, we focus on tools for determining the input settings to a floating point routine that maximizes its result error. Such tools can help support activities such as precision allocation, p...2014-01-01
12 Kasera, Sneha K.Energy efficient radio tomographic imagingIn this paper, our goal is to develop approaches to reduce the energy consumption in Radio Tomographic Imaging (RTI)-based methods for device free localization without giving up localization accuracy. Our key idea is to only measure those links that are near the current location of the moving object...2014-01-01
13 Kasera, Sneha K.Exploiting altruism in social networks for friend-to-friend malware detectionWe propose a novel malware detection application- SocialScan-which enables friend-to-friend (f2f) malware scanning services among social peers, with scanning resource sharing governed by levels of social altruism. We show that with f2f sharing of resources, SocialScan achieves a 65% increase in the ...2014-01-01
14 Kirby, Robert MichaelGPU-based volume visualization from high-order finite element fieldsThis paper describes a new volume rendering system for spectral/hp finite-element methods that has as its goal to be both accurate and interactive. Even though high-order finite element methods are commonly used by scientists and engineers, there are few visualization methods designed to display thi...2014-01-01
15 Bronson, Jonathan RichardLattice cleaving: a multimaterial tetrahedral meshing algorithm with guaranteesWe introduce a new algorithm for generating tetrahedral meshes that conform to physical boundaries in volumetric domains consisting of multiple materials. The proposed method allows for an arbitrary number of materials, produces high-quality tetrahedral meshes with upper and lower bounds on dihedral...2014-01-01
16 Balasubramonian, RajeevMemZip: exploring unconventional benefits from memory compressionMemory compression has been proposed and deployed in the past to grow the capacity of a memory system and reduce page fault rates. Compression also has secondary benefits: it can reduce energy and bandwidth demands. However, most prior mechanisms have been designed to focus on the capacity metric an...2014-01-01
17 Kasera, Sneha K.Monitoring breathing via signal strength in wireless networksThis paper shows experimentally that standard wireless networks which measure received signal strength (RSS) can be used to reliably detect human breathing and estimate the breathing rate, an application we call "BreathTaking". We present analysis showing that, as a first order approximation, breath...2014-01-01
18 Bargteil, Adam WadeMultiphase flow of immiscible fluids on unstructured moving meshesIn this paper, we present a method for animating multiphase flow of immiscible fluids using unstructured moving meshes. Our underlying discretization is an unstructured tetrahedral mesh, the deformable simplicial complex (DSC), that moves with the flow in a Lagrangian manner. Mesh optimization opera...2014-01-01
19 Venkatasubramanian, SureshMultiple target tracking with RF sensor networksRF sensor networks are wireless networks that can localize and track people (or targets) without needing them to carry or wear any electronic device. They use the change in the received signal strength (RSS) of the links due to the movements of people to infer their locations. In this paper, we cons...2014-01-01
20 Pascucci, ValerioMultivariate volume visualization through dynamic projectionsWe propose a multivariate volume visualization framework that tightly couples dynamic projections with a high-dimensional transfer function design for interactive volume visualization. We assume that the complex, high-dimensional data in the attribute space can be well-represented through a collecti...2014-01-01
21 Pascucci, ValerioThe natural Helmholtz-Hodge decomposition for open-boundary flow analysisThe Helmholtz-Hodge decomposition (HHD), which describes a flow as the sum of an incompressible, an irrotational, and a harmonic flow, is a fundamental tool for simulation and analysis. Unfortunately, for bounded domains, the HHD is not uniquely defined, traditionally, boundary conditions are impose...2014-01-01
22 Balasubramonian, RajeevNDC: Analyzing the impact of 3D-stacked memory+logic devices on MapReduce workloadsWhile Processing-in-Memory has been investigated for decades, it has not been embraced commercially. A number of emerging technologies have renewed interest in this topic. In particular, the emergence of 3D stacking and the imminent release of Micron's Hybrid Memory Cube device have made it more pra...2014-01-01
23 Gopalakrishnan, GaneshOvis: A framework for visual analysis of ocean forecast ensemblesWe present a novel integrated visualization system that enables interactive visual analysis of ensemble simulations of the sea surface height that is used in ocean forecasting. The position of eddies can be derived directly from the sea surface height and our visualization approach enables their int...2014-01-01
24 Berzins, MartinParallel breadth first search on GPU clustersFast, scalable, low-cost, and low-power execution of parallel graph algorithms is important for a wide variety of commercial and public sector applications. Breadth First Search (BFS) imposes an extreme burden on memory bandwidth and network communications and has been proposed as a benchmark that m...2014-01-01
25 Henderson, Thomas C.Received signal strength based bearing-only robot navigation in a sensor network fieldThis paper presents a low-complexity, novel approach to wireless sensor network (WSN) assisted autonomous mobile robot (AMR) navigation. The goal is to have an AMR navigate to a target location using only the information inherent to WSNs, i.e., topology of the WSN and received signal strength (RSS) ...2014-01-01
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