A5035133272- Computational Geometry and Mesh Generation
- Vehicle Routing Optimization Methods
- Optimization and Packing Problems
- Advanced Surface Polishing Techniques
- COVID-19 epidemiological studies
- Global Health Care Issues
- Climate Change and Health Impacts
- Health disparities and outcomes
- Health Systems, Economic Evaluations, Quality of Life
- Advanced machining processes and optimization
- Optimization and Search Problems
- Metal and Thin Film Mechanics
- Insurance, Mortality, Demography, Risk Management
- Copper Interconnects and Reliability
- Biosensors and Analytical Detection
- Advanced biosensing and bioanalysis techniques
- Graph Labeling and Dimension Problems
- Advanced Graph Theory Research
- SARS-CoV-2 detection and testing
- Robotic Path Planning Algorithms
- VLSI and FPGA Design Techniques
- Graph theory and applications
- demographic modeling and climate adaptation
- Metal Forming Simulation Techniques
- Smart Parking Systems Research
Ceres Nanosciences
2024
The University of Melbourne
2016-2022
University of Otago
2021
University of Newcastle Australia
2016
Boise State University
2007-2009
<h3>Importance</h3> Countries have varied enormously in how they responded to the COVID-19 pandemic, ranging from elimination strategies (eg, Australia, New Zealand, Taiwan) tight suppression (not aiming for but rather keep infection rates low [eg, South Korea]) loose Europe, United States) virtually unmitigated Brazil, India). Weighing best option, based on health and economic consequences due lockdowns, is necessary. <h3>Objective</h3> To determine optimal policy response, using a net...
Given a graph G with edge lengths, the minimum bottleneck spanning tree (MBST) problem is to find where length of longest in minimum. It well‐known fact that every (MST) tree. In this article, we introduce δ ‐MBST problem, which finding an MBST such vertex has degree at most . We show optimal solutions similarly defined ‐MST are not necessarily ‐MBST, and establish NP‐complete for any when lengths Euclidean distances between points plane, NP‐hard = 2 3, tractable give dual approximation...
Abstract Importance Determining the best policy on social restrictions and lockdowns for COVID-19 pandemic is challenging. Objective To determine optimal response ranging from aggressive moderate elimination, tight suppression (aiming 1 to 5 cases per million day) loose (5 25 day). Design Two simulation models in series: an agent-based model estimate daily SARS-CoV-2 infection rates time four stages of restrictions; a proportional multistate lifetable long-run health impacts (health adjusted...
Die-stacking schema using through-wafer interconnects require vias to be filled with electroplated Cu, resulting in thick copper films and requiring an aggressive first-step chemical mechanical planarization (CMP). This work investigates the effects of microstructure on CMP films, which are not presently well understood. Bulk local removal rates investigated for several different microstructures. Surface orientation maps created, orientations individual grains correlated topographical data...
Given a set of points in the Euclidean plane, [Formula: see text]-minimum spanning tree ([Formula: text]-MST) problem is finding with maximum degree no more than text] for such sum total length its edges minimum. Similarly, bottleneck text]-MBST) problem, degree-bounded plane that longest edge When text], these two problems may yield disjoint sets optimal solutions same points. In this paper, we perform computational experiments to compare accuracies variety heuristic and approximation...
Background: Countries can decide between one of three COVID-19 control strategies: 1) elimination (e.g., some island countries); 2) suppression, to low infection rates; 3) or mitigation, as per pandemic influenza strategies with ensuing herd immunity. This paper quantifies the health (direct impact, and indirect through unemployment onto self-harm road traffic crash) cost (health system societal) consequences for these across Australia, New Zealand (NZ) Sweden. Methods: We used proportional...
For a simple graph [Formula: see text] and for pair of vertices text], we say that vertex resolves if the shortest path from to is different length than text]. A set resolving every in there exists The minimum weight problem find weighted such minimum, where In this paper, explore possible solutions grid graphs We give complete characterization whose cardinalities are 2 or 3, show maximum cardinality solution has property given landmark set, only need investigate whether not all pairs share...
Simulation models can be used to quantify the projected health impact of interventions. Quantifying heterogeneity in these impacts, for example by socioeconomic status, is important understand impacts on inequalities. We aim disaggregate one type Markov macro-simulation model, proportional multistate lifetable, ensuring that under business-as-usual (BAU) sum deaths across disaggregated strata each time step returns same as initial non-disaggregated model. then demonstrate application...
Abstract Wastewater testing has emerged as an effective tool for monitoring levels of SARS-CoV-2 infection in sewered communities. As July 2024, PCR-based methods continue to be the most widely used wastewater surveillance (1–3). Data from is usually available public health authorities near real time, typically within 5 7 days after waste enters sewer (4,5). Unfortunately, while these can accurately detect and quantify SARS-CoV-2, they are not differentiate between multitude variants,...
Given a set of points in the Euclidean plane, \textit{$\delta$-minimum spanning tree} ($\delta$-MST) problem is finding tree with maximum degree no more than $\delta$ for such sum total length its edges minimum. Similarly, bottleneck ($\delta$-MBST) problem, degree-bounded plane that longest edge When $\delta \leq 4$, these two problems may yield disjoint sets optimal solutions same points. In this paper, we perform computational experiments to compare accuracies variety heuristic and...
The geometric $\delta$-minimum spanning tree problem ($\delta$-MST) is the of finding a minimum for set points in normed vector space, such that no vertex has degree which exceeds $\delta$, and sum lengths edges minimum. similarly defined bottleneck ($\delta$-MBST), bounded length longest edge For point sets lie Euclidean plane, both these problems have been shown to be NP-hard certain specific values $\delta$. In this paper, we investigate $\delta$-MBST $3$-dimensional space rectilinear...
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Abstract BackgroundSimulation models can be used to quantify the projected health impact of interventions. Quantifying heterogeneity in these impacts, for example by socioeconomic status, is important understand impacts on inequalities.We aim disaggregate one type Markov macro-simulation model, proportional multistate lifetable, ensuring that under business-as-usual (BAU) sum deaths across disaggregated strata each time step returns same as initial non-disaggregated model. We then...
Abstract Background Simulation models can be used to quantify the projected health impact of interventions. Quantifying heterogeneity in these impacts, for example by socioeconomic status, is important understand impacts on inequalities. We aim disaggregate one type Markov macro-simulation model, proportional multistate lifetable, ensuring that under business-as-usual (BAU) sum deaths across disaggregated strata each time step returns same as initial non-disaggregated model. then demonstrate...