Results 61 to 70 of about 2,925,819 (300)

Accelerated Materials Discovery Through In Situ X‐ray Diffraction: Solvothermal Formation of PdxMy (M═Si, Ge, Sn, Pb) Intermetallic Nanoparticles

Advanced Materials, EarlyView.
In situ PXRD data on solvothermal reactions accelerate materials discovery while simultaneously providing fundamental insights into complex crystal formation processes. Using PdxMy (M = Si, Ge, Sn, Pb) as an example, a general formation mechanism is identified, and specific synthesis strategies for ex situ preparation of SnPd2, Sn13Pd20, and SnPd ...
Anders Bæk Borup, Bo Brummerstedt Iversen   +1 more
wiley   +1 more source

Maximum Entropy Exploration in Contextual Bandits with Neural Networks and Energy Based Models

Entropy, 2023
Contextual bandits can solve a huge range of real-world problems. However, current popular algorithms to solve them either rely on linear models or unreliable uncertainty estimation in non-linear models, which are required to deal with the exploration ...
Adam Elwood, Marco Leonardi, Ashraf Mohamed, Alessandro Rozza   +3 more
doaj   +1 more source

Layered Spin‐Crossover Metal‐Organic Frameworks for Light‐Induced Control of Two‐Dimensional Quantum Materials

Advanced Materials, EarlyView.
Spin‐crossover metal‐organic frameworks (SCO‐MOFs) provide a route to control the electronic and magnetic properties of two‐dimensional quantum materials. By integrating a layered SCO‐MOFs with graphene, CrSBr, and NbSe2 nanodevices, thermally and light induced spin transitions induce strain that reversibly modulates charge transport, magnetic memory ...
Carla Boix‐Constant, Alejandro Orellana‐Silla, José Antonio Real, Samuel Mañas‐Valero, Eugenio Coronado   +4 more
wiley   +1 more source

Bayesian mixture modelling and inference based Thompson sampling in Monte-Carlo tree search

, 2013
Monte-Carlo tree search is drawing great interest in the domain of planning under uncertainty, particularly when little or no domain knowledge is available. One of the central problems is the trade-off between exploration and exploitation.
Aijun Bai, Wu, Feng, Bai, Aijun, Chen, Xiaoping, Xiaoping Chen, Feng Wu   +5 more
core   +1 more source

ATC-FL: Adaptive Thompson Sampling for Efficient Clustering in Federated Learning

IEEE Access
Federated Learning (FL) enables collaborative model training across decentralized clients without sharing raw data. To improve scalability and address client heterogeneity, clustering-based FL methods group similar clients to train specialized models ...
Shivani Sanjay Kolekar, Jisoo Shin, David J. Richter, Kyungbaek Kim   +3 more
doaj   +1 more source

Decomposing and Optimizing Regret in Classical Multi-Armed Bandit Algorithms: ETC, UCB, and Thompson Sampling [PDF]

ITM Web of Conferences
Define and decompose the regret values of three classic algorithms, Explore-then-commit, Upper confidence bounds, and Thompson Sampling. First determine which part of the algorithm, function or equation yield the regret, then decompose the regret to find
Yao Yixuan
doaj   +1 more source

Synthesis of Ti2B2Clx MBenes in Molten Salts From Theoretical and Experimental Perspectives

Advanced Materials, EarlyView.
By integrating a theoretical framework with experiments, Ti2InB2 was selectively etched with ZnCl2 to produce a multilayer (ml) Ti2B2Clx MBene. The In atoms are completely removed, with simultaneous incorporation of chlorine surface terminations. in situ x‐ray diffraction indicates a direct biphasic transformation from Ti2InB2 to ml‐MBene, with no ...
Rodrigo M. Ronchi, Emile Defoy, Andrejs Petruhins, Justinas Palisaitis, Leiqiang Qin, Joseph Halim, Lianghao Yu, Lan Tang, Solenn Reguer, Dominique Thiaudière, Ningjun Chen, Durga Sankar Vavilapalli, David Portehault, Jonas Björk, Per O. Å. Persson, Johanna Rosen   +15 more
wiley   +1 more source

Comparison of Regret in Ucb Algorithms and Thompson Sampling Under Different Reward Distributions [PDF]

ITM Web of Conferences
The Multi-Armed Bandit (MAB) problem is a classic framework for solving the trade-off between exploration and exploitation, which is widely used in fields such as online advertising, recommendation systems, and A/B testing.
Yang Jingbo
doaj   +1 more source

Microscale Mapping of Fiber Strain and Damage in Composite Wrinkled Laminates Using Computed Tomography Assisted Wide‐Angle X‐Ray Scattering

Advanced Science, EarlyView.
This study combines full‐field tomography with diffraction mapping to quantify radial (ε002$\varepsilon _{002}$) and axial (ε100$\varepsilon _{100}$) lattice strain in wrinkled carbon‐fiber specimens for the first time. Radial microstrain gradients (−14.5 µεMPa$\varepsilon \mathrm{MPa}$−1) are found to signal damage‐prone zones ahead of failure, which ...
Hoang Minh Luong, James Trevarthen, Igor Dolbnya, Wadwan Singhapong, Nicholas Pilato, Richard Butler, Jiraphant Srisuriyachot, Alexander J. G. Lunt   +7 more
wiley   +1 more source

Multi-Armed Bandit-Based User Network Node Selection

Sensors
In the scenario of an integrated space–air–ground emergency communication network, users encounter the challenge of rapidly identifying the optimal network node amidst the uncertainty and stochastic fluctuations of network states. This study introduces a
Qinyan Gao, Zhidong Xie
doaj   +1 more source