Results 91 to 100 of about 106,398 (294)

Historical Gradient Boosting Machine

EPiC Series in Computing, 2018
We introduce the Historical Gradient Boosting Machine with the objective of improving the convergence speed of gradient boosting. Our approach is analyzed from the perspective of numerical optimization in function space and considers gradients in previous steps, which have rarely been appreciated by traditional methods.
Zeyu Feng, Chang Xu 0002, Dacheng Tao
openaire   +2 more sources

Engineering MnNiPx Cathode via Dual Role of Mn: Simultaneous Enhancement of Activity and Intermittent Operation Durability

Advanced Functional Materials, EarlyView.
Engineering MnNiPx cathodes through the dual role of Mn simultaneously improves hydrogen evolution reaction activity and intermittent‐operation durability. Mn preferentially oxidizes to protect Ni–P sites from irreversible oxidation, while metallic Mn incorporation enhances the HER kinetics of Ni–P active layer.
Ik‐Sun Kim, Jungwoo Choi, Sechan Lee, Jung Eun Park, Changsoo Lee, Jongsu Seo, Ji Hee Kwon, Gisu Doo, Hyeonjung Park, Dongju Lee, Won‐Chul Cho, Changhee Kim, Nosang Vincent Myung, Sang Soo Han, Byeong‐Seon An, MinJoong Kim, Hyun‐Seok Cho   +16 more
wiley   +1 more source

Coupling Anodic Activity and Stability at Ni‐Based Non‐Oxide Catalysts via Coordinating Alcohol Oxidation and Oxygen Evolution

Advanced Functional Materials, EarlyView.
A cooperative and competitive interrelationship between alcohol oxidation (AOR) and water oxidation (OER) was observed on a typical anode catalyst of Ni2P. In situ Raman spectroscopy and electrochemical analyses revealed a specific complementary mechanism between them, in which OER and AOR critically contribute to the activity and stability of anodic ...
Yong Yan, Xinyu Liu, Yuguo Zhao, Hanwen Jian, Huan Zhou, Riyi Zhang, Dong Wang, Peter Schaaf, Lihua Wang, Guangsheng Guo, Xiayan Wang   +10 more
wiley   +1 more source

Comparing Gradient Boosting and Neural Networks in Predicting Age Based on Coronal Pulp Height from Panoramic Radiographs – A Retrospective Radiographic Study

Journal of Indian Academy of Oral Medicine and Radiology
Background: Age estimation is the process of establishing an individual’s age using biological indicators. It is extremely important in many domains, including forensic science, anthropology, and legal medicine.
Kishorwara Ramamoorthy, Devika S. Pillai, Pradeep Kumar Yadalam, Prasanthi Sitaraman   +3 more
doaj   +1 more source

Bio‐Inspired Synthesis of Macroporous Single Crystal Particles as Scattering Agents

Advanced Functional Materials, EarlyView.
A general strategy is presented that delivers unique, single‐crystal microparticles that combine submicron macroporosity and uniform particle shapes. A bioinspired approach is used to occlude three distinct types of additives – polystyrene microspheres, polymer vesicles and amino acids – within calcite single crystals, and subsequent thermal annealing ...
Stephanie E. Foster, Gianni Jacucci, Ouassef Nahi, Thomas Kress, Zabeada Aslam, Stuart Micklethwaite, Alexander N. Kulak, Rik Drummond‐Brydson, Melinda J. Duer, Yi‐Yeoun Kim, Silvia Vignolini, Fiona C. Meldrum   +11 more
wiley   +1 more source

Forecasting Enterprises Bankruptcy by Extreme Gradient Boosting

, 2020
Мокеев Владимир Викторович, д.т.н., старший научный сотрудник, профессор кафедры информационных технологии в экономике, Южно-Уральского государственный университет (национальный исследовательский университет) (Челябинск, Российская Федерация) Войтецкий ...
Войтецкий, Р.В., Мокеев, В.В., Mokeyev, V.V., Voitetckiy, R.V.   +3 more
core   +1 more source

Introducing Gradient Boosting as a universal gap filling tool for meteorological time series

Meteorologische Zeitschrift, 2018
In this article, Gradient Boosting (gb) is introduced as an easily adaptable machine learning method to fill gaps caused by missing or erroneous data in meteorological time series.
Philipp Körner, Rico Kronenberg, Sandra Genzel, Christian Bernhofer   +3 more
doaj   +1 more source

Submicron Metasurface Reconfigured Multiband Smart Windows

Advanced Functional Materials, EarlyView.
This work presents a submicron metasurface reconfigured multiband thermochromic smart window. By integrating subwavelength nanostructures into a Fabry−Perot resonator configuration, it mitigates conventional trade‐offs to simultaneously deliver high luminous transmittance and robust solar heating and radiative cooling modulation capabilities ...
Guanya Wang, Shancheng Wang, Bin Li, Xinyi Tian, Rong Liu, Jian Chen, Zhendong Dai, Shouqin Tian, Yi Long   +8 more
wiley   +1 more source

Polymer‐Redox Interactions Enhance Ferro/Ferricyanide Thermogalvanic Cells

Advanced Functional Materials, EarlyView.
Polyelectrolyte could modify the hydration structure of the redox couple in solution and improve the output performance of thermogalvanic cells, providing new fundamental insight into how electrostatic interactions can be exploited to tailor thermoelectric properties.
Pedro Santos Candiotto de Oliveira, Ziyauddin Khan, Swathi Suneesh, Sarbani Ghosh, Zia Ullah Khan, Reverant Crispin, Dan Zhao   +6 more
wiley   +1 more source

Boosting approach to brine viscosity estimation: Binary system development

Chemical Thermodynamics and Thermal Analysis
Accurate prediction of brine viscosity is essential for the design and optimisation of desalination, hydrometallurgical, and energy-storage systems. In this work, machine-learning-based regression models were developed to predict the viscosity of binary ...
Vinita Sangwan, Rashmi Bhardwaj, Andrés Soto-Bubert, Roberto Acevedo   +3 more
doaj   +1 more source