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LED: Latent Variable-based Estimation of Density [article]

Omri Ben-Dov, Pravir Singh Gupta, Victoria Fernandez Abrevaya, Michael J. Black, Partha Ghosh
2022 arXiv   pre-print
provide exact density estimation, at the expense of sample quality and compactness of the latent space.  ...  Additionally, we construct a flow-based generator that can compute exact probabilities for generated samples, while allowing low-dimensional latent variables as input.  ...  Architecture LED consists of a generator and a discriminator. The discriminator in our case plays the role of a density estimator.  ... 
arXiv:2206.11563v1 fatcat:w7v4wlollrglpo5fyquflimpl4

The M-LED platform: advancing electricity demand assessment for communities living in energy poverty

Giacomo Falchetta, Nicolò Stevanato, Magda Moner-Girona, Davide Mazzoni, Emanuela Colombo, Manfred Hafner
2021 Environmental Research Letters  
Here we introduce M-LED, a Multi-sectoral Latent Electricity Demand geospatial data processing platform to estimate electricity demand in communities that live in energy poverty.  ...  Globally about 800 million people live without electricity at home, over two thirds of which are in sub-Saharan Africa.  ...  Figure 3 shows the geographical distribution of yearly sectoral latent electricity demand density (MWh yr −1 km −2 ).  ... 
doi:10.1088/1748-9326/ac0cab fatcat:rc355xbmrjhwpmznmiffqltqnq

How a school holiday led to persistent COVID-19 outbreaks in Europe

Björn Thor Arnarson
2021 Scientific Reports  
This suggests that following a large outbreak, there is a strong element of underlying (latent) regional persistence of Covid-19.  ...  Using data from 650 European regions in 14 countries, I first show that winter school holidays in late February/early March 2020 (weeks 8, 9 and 10) led to large regional outbreaks of Covid-19 in the spring  ... inclusion of these variables controls for the cross-region demographics and importantly variation in population density in terms of number of inhabitants, typology  ... 
doi:10.1038/s41598-021-03927-z pmid:34937860 pmcid:PMC8695576 fatcat:4mw6xvma3vbb7ef36ndxnlgrea

Where Can Tourism-Led Growth and Economy-Driven Tourism Growth Occur?

Vera Shanshan Lin, Yang Yang, Gang Li
2018 Journal of Travel Research  
The empirical results reveal that 10 out of 29 regions experienced tourism-led growth (TLG) during 1978 to 2013, whereas nine regions experienced economy-driven tourism growth (EDTG).  ...  this study, we investigate the causal relationships between international tourism growth and regional economic expansion in China, and more importantly, disclose the factors determining the occurrence of  ...  Acknowledgments The first author would like to acknowledge the financial support of the National Natural Science Foundation of China (Grant No.: 71503231).  ... 
doi:10.1177/0047287518773919 fatcat:2qupyrncozhivi34pginhocb5a

Energy savings in greenhouses by transition from high-pressure sodium to LED lighting

David Katzin, Leo F.M. Marcelis, Simon van Mourik
2021 Applied Energy  
This study presents a first analysis of the energy demands for greenhouses transitioning from high-pressure sodium (HPS) to LED lighting, providing a quantification of the total energy savings achieved  ...  Since energy for lighting and heating is often derived from different origins, the benefits of a transition to LEDs depend on the environmental and financial costs of the available energy sources.  ...  Funding sources Funding for this study was provided as part of the "LED it be 50%" Perspectief program number 14217, supported by the Netherlands Organization for Scientific Research Domain Applied and  ... 
doi:10.1016/j.apenergy.2020.116019 fatcat:2fw6gp3mzngdxgwebtd2xolxs4

Climate warming over the past half century has led to thermal degradation of permafrost on the Qinghai–Tibet Plateau

Youhua Ran, Xin Li, Guodong Cheng
2018 The Cryosphere  
remote-sensing-based estimates of mean annual land surface temperatures (MASTs), leaf area index (LAI) and fractional snow cover values, and decadal mean MAAT date from 152 weather stations with a geographically  ...  Results show that the climate warming has led to a thermal degradation of permafrost in the past half century.  ...  This study was jointly supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No.  ... 
doi:10.5194/tc-12-595-2018 fatcat:wliqh5runnc6lbqm34w235oiiy

Breast cancer follow-up: a radiographer-led service

D Vaile, P Barrett-Lee
2004 Breast Cancer Research  
Cell-based screens have revealed that inhibitors of nuclear export and inhibitors of transcription (one of which is in clinical trial) can also activate the p53 response therapeutically.  ...  The pharmaceutical regulation of the p53 pathway offers great hope for improved treatment of human cancer.  ...  that accidents occur due to both human failures and latent conditions.  ... 
doi:10.1186/bcr875 fatcat:rjgbthcjjfccjl3m5ll3dztcoe

GreenLight – An open source model for greenhouses with supplemental lighting: Evaluation of heat requirements under LED and HPS lamps

David Katzin, Simon van Mourik, Frank Kempkes, Eldert J. van Henten
2020 Biosystems Engineering  
-the light-emitting diodes (LEDs).  ...  Energy use LEDs Crop models Open source Greenhouse models are important tools for the analysis and design of greenhouse systems and for offering decision support to growers.  ...  Estimation of lamp specific parameters Estimation of the 15 parameters used to describe the toplights (see Section 2.1.2 above) was done as follows: the parameters q LampMax and A Lamp were based on direct  ... 
doi:10.1016/j.biosystemseng.2020.03.010 fatcat:xqfgp6aylvao5ncpgyzgy6m4du

Pregnant Women's Fear of Childbirth in Midwife- and Obstetrician-Led Care in Belgium and the Netherlands: Test of the Medicalization Hypothesis

Wendy Christiaens, Sarah Van De Velde, Piet Bracke
2011 Women & health  
Multiple regression analysis showed no country differences, except that Belgian women in midwife-led care were more fearful of medical interventions and hospital care than the Dutch.  ...  Fear of childbirth has gained importance in the context of increasing medicalization of childbirth.  ...  The third latent variable "fear of pain and injuries" underlied fear of blood loss, fear of painful contractions, and fear of tearing.  ... 
doi:10.1080/03630242.2011.560999 pmid:21547859 fatcat:64n7jhyevfafli5pbnz4uojeaa


2020 Lëd i Sneg  
Using an independent estimate of frontal ablation for 2016−2017 of −1,93±0,12 Gt a −1 (−0,31±0,12 m w.e. a −1 ), we get an estimate of the climatic mass balance not significantly different from zero, at  ...  Making an observationally-based assumption on accumulation rate, we estimate the current total ablation from the ice cap, and its partitioning between frontal ablation, dominated by calving (~54%) and  ...  study has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No 727890 and from Agencia Estatal de Investig ación under grant CTM201784441R of  ... 
doi:10.31857/s2076673420010021 fatcat:ytfgmxobgjelnhmyypsrc7agfm

An Examination of Rural and Female-Led Firms: A Resource Approach

Marcos Segantini, Lori A. Dickes
2021 Journal of Small Business Strategy  
The inclu- Figures 1 and 2 presents the survival curve estimates for sion of rural and female dummy variables did not change women-led nascent ventures in metro and rural  ...  estimates, the survival curves of women- ventures: the odds of stopping operations of nascent rural led firms that received external funding in metro areas are ventures are 1.25 compared  ... 
doi:10.53703/001c.29472 fatcat:pi3oijeiczgzjildlecjmpd42m

Development of an inexpensive handheld LED-based Sun photometer for the GLOBE program

David R. Brooks, Forrest M. Mims
2001 Journal of Geophysical Research  
ABSTRACT: Comparing individual components of a total climate impact is traditionally done in terms of radiative forcing.  ...  III, 2000: A comparison of exhaust condensation trail forecast algorithms at low relative humidity.  ...  Further support was given from the UK Department of Trade and Industry (DTI) and the UK Department for Transport (DfT).  ... 
doi:10.1029/2000jd900545 fatcat:hxanqptaxzh7zhwcn2evea5l6a

How parties led by a woman redefine their positions: Empirical evidence for women's green, alternative, and libertarian agenda

Corinna Kroeber
2021 European Journal of Political Research  
The empirical evidence, based on data for 19 developed democracies around the world between 1995 and 2018, reveals that parties led by a woman tend to emphasise green, alternative and libertarian issues  ...  This article investigates how the sex of party heads impacts party positions and uncovers that parties led by a woman modify their stances on sociocultural but not economic debates.  ...  this item is not part of the same latent concept in the country.  ... 
doi:10.1111/1475-6765.12449 fatcat:sdmeg3un7nhvro2thvqi2mwbfa

Simple Process-Led Algorithms for Simulating Habitats (SPLASH v.1.0): Robust Indices of Radiation, Evapotranspiration and Plant-Available Moisture

Tyler W. Davis, I. Colin Prentice, Benjamin D. Stocker, Rhys J. Whitely, Han Wang, Bradley J. Evans, Angela V. Gallego-Sala, Martin T. Sykes, Wolfgang Cramer
2016 Geoscientific Model Development Discussions  
flux density, evapotranspiration (potential, equilibrium and actual), condensation, soil moisture, and runoff, based on analysis of their relationship to fundamental climatic drivers.  ...  Here we present a consolidated set of Simple Process-Led Algorithms for Simulating Habitats (SPLASH) allowing robust approximations of key quantities at ecologically relevant time scales.  ...  The Janus supercomputer is a joint effort of the University of Colorado Boulder, the University of Colorado Denver, and the National Center for Atmospheric Research.  ... 
doi:10.5194/gmd-2016-49 fatcat:uolkyn4t2fbupblw3gvr5r2u3a

Simple process-led algorithms for simulating habitats (SPLASH v.1.0): robust indices of radiation, evapotranspiration and plant-available moisture

Tyler W. Davis, I. Colin Prentice, Benjamin D. Stocker, Rebecca T. Thomas, Rhys J. Whitley, Han Wang, Bradley J. Evans, Angela V. Gallego-Sala, Martin T. Sykes, Wolfgang Cramer
2017 Geoscientific Model Development  
flux density, evapotranspiration (potential, equilibrium, and actual), condensation, soil moisture, and runoff, based on analysis of their relationship to fundamental climatic drivers.  ...  Here we present a consolidated set of simple process-led algorithms for simulating habitats (SPLASH) allowing robust approximations of key quantities at ecologically relevant timescales.  ...  The Janus supercomputer is a joint effort of the University of Colorado Boulder, the University of Colorado Denver, and the National Center for Atmospheric Research.  ... 
doi:10.5194/gmd-10-689-2017 fatcat:gcdr6mwdi5fujndihbmmxa6l6m
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