Results 121 to 130 of about 20,562 (267)

NAADF: Globally Illuminated Voxel Worlds Accelerated with Nested Axis‐Aligned Distance Fields

Computer Graphics Forum, EarlyView.
Abstract Achieving realistic rendering of 3D scenes in real time using path tracing is challenging due to the high sample count required, with ray tracing as the bottleneck. Focusing on voxels as a geometry representation offers significant opportunities for optimizations, especially for tracing the rays, but also for computing the samples.
A. Ulschmid, M. Ott, J. Macho, M. Wimmer, S. Ohrhallinger   +4 more
wiley   +1 more source

Application of Noise2Inverse and adaptation (Noise2Phase) to single‐mask x‐ray phase contrast micro‐computed tomography

Journal of Microscopy, EarlyView.
Abstract X‐ray phase contrast imaging (XPCI), when implemented in micro‐computed tomography (micro‐CT) mode, offers high‐contrast 3D imaging of weakly‐attenuating material samples. In the so‐called single‐mask edge illumination approach, a mask with periodically spaced transmitting apertures is used to split the x‐ray beam into narrow beamlets; when ...
Khushal Shah, Grammatiki Lioliou, Dai Chen, Alexander Denker, Peter Munro, Marco Endrizzi, Alberto Astolfo, Alessandro Olivo, Charlotte K. Hagen   +8 more
wiley   +1 more source

On optimisation of Paganin's method for propagation‐based X‐ray phase‐contrast imaging and tomography

Journal of Microscopy, EarlyView.
Abstract Paganin's method for image reconstruction in propagation‐based phase‐contrast X‐ray imaging and tomography has enjoyed broad acceptance in recent years, with over one thousand publications citing its use. The present paper discusses approaches to optimisation of the method with respect to simple image quality metrics, such as signal‐to‐noise ...
Timur E. Gureyev, David M. Paganin, Ashkan Pakzad, Harry M. Quiney   +3 more
wiley   +1 more source

Do robots boost productivity? A quantitative meta‐study

Journal of Economic Surveys, EarlyView.
ABSTRACT This meta‐study analyzes the productivity effects of industrial robots. More than 1800 estimates from 85 primary studies are collected. The meta‐analytic evidence suggests that robotization has so far provided, at best, a small boost to productivity. There is strong evidence of publication bias in the positive direction.
Florian Schneider
wiley   +1 more source

Reinforcement Learning for Jump‐Diffusions, With Financial Applications

Mathematical Finance, EarlyView.
ABSTRACT We study continuous‐time reinforcement learning (RL) for stochastic control in which system dynamics are governed by jump‐diffusion processes. We formulate an entropy‐regularized exploratory control problem with stochastic policies to capture the exploration–exploitation balance essential for RL.
Xuefeng Gao, Lingfei Li, Xun Yu Zhou
wiley   +1 more source

Exploring the Role of Social Supermarkets in Addressing Food Insecurity and Food Waste: A Scoping Review

Nutrition Bulletin, EarlyView.
ABSTRACT Tackling food insecurity and food waste are two interrelated and complex policy challenges. Innovations in food retail termed ‘social supermarkets’ (SSMs) could provide a solution, utilising surplus produce from mainstream food retailers, which are then traded at reduced prices.
Claire O'Malley, Callum Bradford, Jordan Duffy, Helen J. Moore, Andrea Burrows, Joe Dunne, Lisa Harris, Frances Hillier‐Brown, Matthew Cotton, Lucie Nield, Amelia A. Lake   +10 more
wiley   +1 more source

Algorithmic Governance: Experimental Evidence on Citizens' and Public Administrators' Legitimacy Perceptions of Automated Decision‐Making

Public Administration, EarlyView.
ABSTRACT This article investigates legitimacy perceptions of automated decision‐making (ADM) among public administrators and citizens. Views of public administrators, who exercise discretion over policy implementation, reflect readiness to integrate AI into decision‐making.
Jaakko Hillo, Isak Vento, Tero Erkkilä
wiley   +1 more source

A High‐Throughput Phenotyping Pipeline for Quinoa (Chenopodium quinoa) Panicles Using Image Analysis With Convolutional Neural Networks

Plant Breeding, EarlyView.
ABSTRACT Quinoa is a grain crop with excellent nutritional properties that has attracted global attention for its potential contribution to future food security in a changing climate. Despite its long history of cultivation, quinoa has been improved little by modern breeding and is a niche crop outside its native cultivation area.
Flavio Lozano‐Isla, Lydia Kienbaum, Bettina I. G. Haussmann, Karl Schmid   +3 more
wiley   +1 more source

Unconventional Fiscal Policies in Response to Inflation: The Iberian Exception in Portugal

Scottish Journal of Political Economy, EarlyView.
ABSTRACT The surge in Eurozone inflation in 2022 compelled European governments to implement unconventional fiscal policies. One initiative, the Iberian Exception, imposed a cap on the cost of natural gas used for electricity generation in Portugal and Spain.
Lourenço Cerdeira, Sofia Vale, Luís Clemente‐Casinhas   +2 more
wiley   +1 more source

Kinship and reproduction: A perspective of the Akha in Laos

The Australian Journal of Anthropology, EarlyView.
Abstract Drawing on fieldwork among the Akha people in Phongsaly District, Phongsaly Province, northern Laos, this paper examines Akha patrilineal kinship and its links to reproduction. The Akha people's reproductive decisions and behaviours are shaped by patrilineality, ancestral connections and cultural–spiritual perceptions of reproduction, which ...
Vanly Lorkuangming
wiley   +1 more source