Reset filters

Search publications


Search by keyword
List by department / centre / faculty

No publications found.

 

Asymmetric autocatalytic reactions and their stationary distribution

Author(s): Gallinger C; Popovic L;

We consider a general class of autocatalytic reactions, which has been shown to display stochastic switching behaviour (discreteness-induced transitions (DITs)) in some parameter regimes. This behaviour was shown to occur either when the overall species count is low or when the rate of inflow and outflow of species is relatively much smaller than the rate ...

Article GUID: 39679357


Brain tumor detection based on a novel and high-quality prediction of the tumor pixel distributions

Author(s): Sun Y; Wang C;

The work presented in this paper is in the area of brain tumor detection. We propose a fast detection system with 3D MRI scans of Flair modality. It performs 2 functions, predicting the gray level distribution and location distribution of the pixels in the tumor regions and generating tumor masks with pixel-wise precision. To facilitate 3D data analysis a ...

Article GUID: 38493601


The infimum values of two probability functions for the Gamma distribution

Author(s): Sun P; Hu ZC; Sun W;

Let a, ß be positive real numbers and let Xα ,β be a Gamma random variable with shape parameter a and scale parameter ß. We study infimum values of the function (α ,β )↦ P{Xα ,β ≤ κ E[Xα ,β ]} for any fixed κ >0 and the function (α ,β )↦ P{|Xα ,β -E[Xα ,β ]| ...

Article GUID: 38261930


Unsupervised Mixture Models on the Edge for Smart Energy Consumption Segmentation with Feature Saliency

Author(s): Al-Bazzaz H; Azam M; Amayri M; Bouguila N;

Smart meter datasets have recently transitioned from monthly intervals to one-second granularity, yielding invaluable insights for diverse metering functions. Clustering analysis, a fundamental data mining technique, is extensively applied to discern unique energy consumption patterns. However, the advent of high-resolution smart meter data brings forth f ...

Article GUID: 37837127


The evolution of plasticity at geographic range edges

Author(s): Usui T; Lerner D; Eckert I; Angert AL; Garroway CJ; Hargreaves A; Lancaster LT; Lessard JP; Riva F; Schmidt C; van der Burg K; Marshall KE;

Phenotypic plasticity enables rapid responses to environmental change, and could facilitate range shifts in response to climate change. What drives the evolution of plasticity at range edges, and the capacity of range-edge individuals to be plastic, remain unclear. Here, we propose that accuratel ...

Article GUID: 37183152


Tide-induced infiltration and resuspension of microplastics in shorelines: Insights from tidal tank experiments

Author(s): Feng Q; Chen Z; An C; Yang X; Wang Z;

In the present study, the infiltration and resuspension of microplastics (MPs) in a slope substrate under the influence of repeated tidal forces were investigated using a tidal tank. In the scenario in which MPs were placed on the top of the slope, increasing numbers of particles were observed on the water surface with the increase in tidal cycles. More p ...

Article GUID: 37084574


Identifying climate change refugia for South American biodiversity

Author(s): Sales LP; Pires MM;

Refugia-based conservation strategies offer long-term effectiveness and minimize uncertainty on strategies for climate change adaptation. Here, we use distribution modelling to identify climate change refugia for 617 terrestrial mammals and quantify the role of protected areas in safeguarding these zones across South America. Moist tropical forests locate ...

Article GUID: 36919472


Human Activity Recognition with an HMM-Based Generative Model

Author(s): Manouchehri N; Bouguila N;

Human activity recognition (HAR) has become an interesting topic in healthcare. This application is important in various domains, such as health monitoring, supporting elders, and disease diagnosis. Considering the increasing improvements in smart devices, large amounts of data are generated in our daily lives. In this work, we propose unsupervised, scale ...

Article GUID: 36772428


Species compositions mediate biomass conservation: the case of lake fish communities

Author(s): Arranz I; Fournier B; Lester NP; Shuter BJ; Peres-Neto PR;

Environmental and geographical factors are known to influence the number, distribution and combination of species that coexist within ecological communities. This, in turn, should influence ecosystem functions such as biomass conservation, or the ability of a community to sustain biomass from small to large organisms. We tested this hypothesis by assessin ...

Article GUID: 34905222


Bayesian Learning of Shifted-Scaled Dirichlet Mixture Models and Its Application to Early COVID-19 Detection in Chest X-ray Images

Author(s): Bourouis S; Alharbi A; Bouguila N;

Early diagnosis and assessment of fatal diseases and acute infections on chest X-ray (CXR) imaging may have important therapeutic implications and reduce mortality. In fact, many respiratory diseases have a serious impact on the health and lives of people. However, certain types of infections may include high variations in terms of contrast, size and shap ...

Article GUID: 34460578


Formation of oil-particle aggregates: Impacts of mixing energy and duration

Author(s): Ji W; Boufadel M; Zhao L; Robinson B; King T; An C; Zhang BH; Lee K;

Spilled oil slicks are likely to break into droplets offshore due to wave energy. The fate and transport of such droplets are affected by suspended particles in local marine environment, through forming oil particle aggregates (OPAs). OPA formation is affected by various factors, including the mixing energy and duration. To evaluate these two factors, lab ...

Article GUID: 34252767


-   Page 1 / 2   >