National Research Council Canada

Compositional neurosymbolic representations enable efficient active exploration

Abstract Autonomous systems that learn and explore over long horizons face a problem. Standard methods scale poorly in the number of observations, n , precluding sustained operation on bounded hardware. We show that compositional, high-dimensional vector representations inspired...

Proper Orthogonal Decomposition-based Model-Order Reduction for Smoothed Particle Hydrodynamics Simulation—Mass-Spring-Damper System

Model Order Reduction (MOR) based on Proper Orthogonal Decomposition (POD) and Smooth Particle Hydrodynamics (SPH) has proven effective in various applications. Most MOR methods utilizing POD are implemented within a pure Eulerian framework, while significantly less attention has...

An openBIM–openGIS framework for route-aware embodied-carbon assessment in public building procurement

Urban construction supply chains contribute substantially to greenhouse-gas emissions and logistical inefficiencies, partly due to fragmented digital workflows between Building Information Modelling (BIM) and Geographic Information Systems (GIS). This study introduces an openBIM–...

Growth efficiencies of essential fatty acids vary with dietary concentration in Atlantic Pollock (Pollachius virens)

The essential fatty acids (EFA) eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are required for the maintenance of good health in humans. In the marine environment, they are primarily synthesized by phytoplankton and their production is predicted to decrease with warm...