Now showing items 21-40 of 77

    • Fast and Scalable Solvers for the Fluid Pressure Equations with Separating Solid Boundary Conditions 

      Lai, Junyu; Chen, Yangang; Gu, Yu; Batty, Christopher; Wan, Justin W.L. (Wiley, 2020-05)
      In this paper, we propose and evaluate fast, scalable approaches for solving the linear complementarity problems (LCP) arising from the fluid pressure equations with separating solid boundary conditions. Specifically, we ...
    • A fast variational framework for accurate solid-fluid coupling 

      Batty, Christopher; Bertails, Florence; Bridson, Robert (Association for Computing Machinery, 2007-07)
      Physical simulation has emerged as a compelling animation technique, yet current approaches to coupling simulations of fluids and solids with irregular boundary geometry are inefficient or cannot handle some relevant ...
    • FrictionalMonolith: A Monolithic Optimization-based Approach for Granular Flow with Contact-Aware Rigid-Body Coupling 

      Takahashi, Tetsuya; Batty, Christopher (Association for Computing Machinery, 2021)
      We propose FrictionalMonolith, a monolithic pressure-friction-contact solver for more accurately, robustly, and efficiently simulating two-way interactions of rigid bodies with continuum granular materials or inviscid ...
    • Geo-Phisher: The Design and Evaluation of Information Visualizations about Internet Phishing Trends 

      Zhang-Kennedy, Leah; Fares, Elias; Chiasson, Sonia; Biddle, Robert (IEEE, 2016-06)
      We designed an information visualization about phishing trends and phishing prevention for the general public to examine the effects of interactivity on information finding, user perceptions and security behaviour intentions, ...
    • Hierarchical RLE level set: A compact and versatile deformable surface representation 

      Houston, Ben; Nielsen, Michael B.; Batty, Christopher; Nilsson, Ola; Museth, Ken (Association for Computing Machinery, 2006-01)
      This article introduces the Hierarchical Run-Length Encoded (H-RLE) Level Set data structure. This novel data structure combines the best features of the DT-Grid (of Nielsen and Museth [2004]) and the RLE Sparse Level Set ...
    • How many crowdsourced workers should a requester hire? 

      Carvalho, Arthur; Dimitrov, Stanko; Larson, Kate (Springer, 2016-01)
      Recent years have seen an increased interest in crowdsourcing as a way of obtaining information from a potentially large group of workers at a reduced cost. The crowdsourcing process, as we consider in this paper, is as ...
    • Impact of sex and pathophysiology on optimal drug choice in hypertensive rats: Quantitative insights for precision medicine 

      Ahmed, Sameed; Sullivan, Jennifer C.; Layton, Anita T. (Elsevier, 2021-04)
      Less than half of all hypertensive patients receiving treatment are successful in normalizing their blood pressure. Despite the complexity and heterogeneity of hypertension, the current antihypertensive guidelines are not ...
    • In Search Of Most Complex Regular Languages 

      Brzozowski, Janusz (World Scientific Publishing, 2013-09-01)
      Sequences (L-n vertical bar n >= k), called streams, of regular languages L-n are considered, where k is some small positive integer, n is the state complexity of L-n, and the languages in a stream differ only in the ...
    • Incentivizing evaluation with peer prediction and limited access to ground truth 

      Gao, Xi Alice; Wright, James R.; Leyton-Brown, Kevin (Elsevier, 2019-10)
      In many settings, an effective way of evaluating objects of interest is to collect evaluations from dispersed individuals and to aggregate these evaluations together. Some examples are categorizing online content and ...
    • Internet of Drones 

      Gharibi, Mirmojtaba; Boutaba, Raouf; Waslander, Steven L. (Institute of Electrical and Electronics Engineers (IEEE): OAJ, 2016-03-02)
      The Internet of Drones (IoD) is a layered network control architecture designed mainly for coordinating the access of unmanned aerial vehicles to controlled airspace, and providing navigation services between locations ...
    • Mandoline: robust cut-cell generation for arbitrary triangle meshes 

      Tao, Michael; Batty, Christopher; Fiume, Eugene; Levin, David I.W. (ACM, 2019-11)
      Although geometry arising "in the wild" most often comes in the form of a surface representation, a plethora of geometrical and physical applications require the construction of volumetric embeddings either of the geometry ...
    • Matching fluid simulation elements to surface geometry and topology 

      Brochu, Tyson; Batty, Christopher; Bridson, Robert (Association for Computing Machinery, 2010-07)
      We introduce an Eulerian liquid simulation framework based on the Voronoi diagram of a potentially unorganized collection of pressure samples. Constructing the simulation mesh in this way allows us to place samples anywhere ...
    • Merlynne: Motivating Peer-to-Peer Cognitive Behavioral Therapy with a Serious Game 

      Chan, Tina; Gauthier, Robert; Suarez, Ally; Sia, Nicholas F.; Wallace, James R (ACM, 2021-09)
      Human-Computer Interaction researchers have explored how online communities can be leveraged for peer support, but general disinterest and a lack of engagement have emerged as substantial barriers to their use in practice. ...
    • Monolith: a monolithic pressure-viscosity-contact solver for strong two-way rigid-rigid rigid-fluid coupling 

      Takahashi, Tetsuya; Batty, Christopher (Association for Computing Machinery, 2020-11)
      We propose Monolith, a monolithic pressure-viscosity-contact solver for more accurately, robustly, and efficiently simulating non-trivial two-way interactions of rigid bodies with inviscid, viscous, or non-Newtonian liquids. ...
    • Most Complex Regular Ideal Languages 

      Liu, Bo Yang Victor; Davies, Sylvie; Brzozowski, Janusz (Discrete Mathematics and Theoretical Computer Science, 2016-10-17)
      A right ideal (left ideal, two-sided ideal) is a non-empty language $L$ over an alphabet $\Sigma$ such that $L=L\Sigma^*$ ($L=\Sigma^*L$, $L=\Sigma^*L\Sigma^*$). Let $k=3$ for right ideals, 4 for left ideals and 5 for ...
    • A multi-scale model for coupling strands with shear-dependent liquid 

      Fei, Yun (Raymond); Batty, Christopher; Grinspun, Eitan; Zheng, Changxi (ACM, 2019-11)
      We propose a framework for simulating the complex dynamics of strands interacting with compressible, shear-dependent liquids, such as oil paint, mud, cream, melted chocolate, and pasta sauce. Our framework contains three ...
    • A multi-scale model for simulating liquid-fabric interactions 

      Fei, Yun (Raymond); Batty, Christopher; Grinspun, Eitan; Zheng, Changxi (ACM, 2018-07)
      We propose a method for simulating the complex dynamics of partially and fully saturated woven and knit fabrics interacting with liquid, including the effects of buoyancy, nonlinear drag, pore (capillary) pressure, dripping, ...
    • A Multi-scale Model for Simulating Liquid-hair Interactions 

      Fei, Yun (Raymond); Maia, Henrique Teles; Batty, Christopher; Zheng, Changxi; Grinspun, Eitan (Association for Computing Machinery, 2017-07-20)
      The diverse interactions between hair and liquid are complex and span multiple length scales, yet are central to the appearance of humans and animals in many situations. We therefore propose a novel multi-component simulation ...
    • Multimaterial Mesh-Based Surface Tracking 

      Da, Fang; Batty, Christopher; Grinspun, Eitan (Association for Computing Machinery, 2014-07-01)
      We present a triangle mesh-based technique for tracking the evolution of three-dimensional multimaterial interfaces undergoing complex deformations. It is the first non-manifold triangle mesh tracking method to simultaneously ...
    • Nature vs. Stress: Investigating the Use of Biophilia in Non-Violent Exploration Games to Reduce Stress 

      Reetz, Adrian; Valtchanov, Deltcho; Barnett-Cowan, Michael; Hancock, Mark; Wallace, James R (ACM, 2021)
      Games hold the potential to help many address health-related issues such as chronic stress. We investigated the use of biophilia, an affective response to nature grounded in the psychology literature, as indirect physiological ...

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