检索结果-内蒙古大学图书馆

Automated Ensemble Multimodal Machine Learning for Healthcare

IEEE Journal of Biomedical and Health Informatics 2025年第6期29卷 4213-4226页

作者： Imrie, Fergus Denner, Stefan Brunschwig, Lucas S. Maier-Hein, Klaus van der Schaar, Mihaela University of Oxford Department of Statistics OxfordOX1 2JD United Kingdom Division of Medical Image Computing Heidelberg69120 Germany Heidelberg University Faculty of Mathematics and Computer Science Heidelberg69117 Germany École Polytechnique Fédérale de Lausanne Lausanne1015 Switzerland Heidelberg University Hospital Pattern Analysis and Learning Group Department of Radiation Oncology Heidelberg69120 Germany Heidelberg69120 Germany University of Cambridge Department of Applied Mathematics and Theoretical Physics CambridgeCB2 1TN United Kingdom

The application of machine learning in medicine and healthcare has led to the creation of numerous diagnostic and prognostic models. However, despite their success, current approaches generally issue predictions using data from a single modality. This stands in stark contrast with clinician decision-making which employs diverse information from multiple sources. While several multimodal machine learning approaches exist, significant challenges in developing multimodal systems remain that are hindering clinical adoption. In this paper, we introduce a multimodal framework, AutoPrognosis-M, that enables the integration of structured clinical (tabular) data and medical imaging using automated machine learning. AutoPrognosis-M incorporates 17 imaging models, including convolutional neural networks and vision transformers, and three distinct multimodal fusion strategies. In an illustrative application using a multimodal skin lesion dataset, we highlight the importance of multimodal machine learning and the power of combining multiple fusion strategies using ensemble learning. We have open-sourced our framework as a tool for the community and hope it will accelerate the uptake of multimodal machine learning in healthcare and spur further innovation. © 2013 IEEE.

关键词： Adversarial machine learning

来源：评论

学校读者我要写书评

暂无评论

Effect of symmetry breaking of polarized light sea quarks on the nucleon and nuclear structure functions, and sum rules

引用

Physical Review C 2023年第3期108卷 035203-035203页

作者： Fatemeh Arbabifar Shahin Atashbar Tehrani Hamzeh Khanpour Department of Physics Education Farhangian University P.O. Box 14665-889 Tehran Iran School of Particles and Accelerators Institute for Research in Fundamental Sciences (IPM) P.O. Box 19395-5531 Tehran Iran AGH University of Science and Technology Faculty of Physics and Applied Computer Science Al. Mickiewicza 30 30-055 Krakow Poland Department of Physics University of Science and Technology of Mazandaran P.O. Box 48518-78195 Behshahr Iran

In this study, we performed calculations and analyses of the structure functions of polarized nucleons and light nuclei, specifically He3 and H3, using second-order Feynman diagrams. Our investigation focused on two main aspects: First, we examined the symmetry properties of polarized light sea quarks. Second, we conducted a detailed investigation into the impacts of symmetry breaking on the structure functions of both nucleons and nuclei. To achieve this, we utilized the existing polarized parton distribution functions (polarized PDFs) available in the literature. These PDFs were used to calculate and compare the polarized structure functions g1 and g2 of the nuclei. Additionally, we examined and analyzed the Bjorken and Efremov-Leader-Teryaev sum rules by utilizing the moments of the polarized structure functions. The Lorentz color force components, namely FEy,n and FBy,n, were determined using the twist-2, twist-3, and twist-4 matrix elements. When symmetry breaking is applied, it is observed that they have similar magnitudes but opposite signs. Our theoretical predictions for the polarized structure functions of nucleons and light nuclei, taking into account the symmetry breaking of light sea quarks, exhibit better agreement with experimental data.

关键词： Deep inelastic scattering Perturbative QCD Polarization phenomena QCD in nuclear reactions A ≤ 5

来源：评论

学校读者我要写书评

暂无评论

Energy dependence of proton-proton elastic scattering at large momentum transfer

arXiv

引用

arXiv 2023年

作者： Ferreira, Erasmo Kohara, Anderson Kendi Instituto de Física Universidade Federal do Rio de Janeiro C.P. 68528 Rio de Janeiro Rio de Janeiro21945-970 Brazil AGH University Of Science and Technology Faculty of Physics and Applied Computer Science Mickiewicza 30 Kraków30-059 Poland

The measurements of proton-proton elastic scattering for large momentum transfer at energies in the range ≈ 20 to 60 GeV show a simple behaviour of form dσ/dt ≈ const |t|−8, apparently with no energy dependence. In the present work detailed analysis of the data shows a decrease of the magnitude of the tail with the energy, still with preservation of the power |t|−8. The analysis allows the definition of a band for the energy dependence of the amplitude with central line A(√s) = 0.389 log (100)/ log √s GeV6 . The rate of decrease describes well the data at the distant energy √s = 13 TeV, with reduction of the cross section by a factor 5.71. This result gives prediction for new experiments at high energies, and opens important question for theoretical investigation. Copyright © 2023, The Authors. All rights reserved.

关键词： Elastic scattering

来源：评论

学校读者我要写书评

暂无评论

Kolmogorov-Arnold Networks for metal surface defect classification

arXiv

引用

arXiv 2025年

作者： Krzywda, Maciej Wermiński, Mariusz Lukasik, Szymon Gandomi, Amir H. AGH University of Krakow Faculty of Physics and Applied Computer Science al. A. Mickiewicza 30 Krakow30-059 Poland AGH University of Krakow Faculty of Metals Engineering and Industrial Computer Science al. A. Mickiewicza 30 Krakow30-059 Poland Systems Research Institute Polish Academy of Sciences ul. Newelska 6 Warsaw01-447 Poland Faculty of Engineering and IT University of Technology Sydney 5 Broadway UltimoNSW2007 Australia Óbuda University Bécsi út 96/B Budapest1034 Hungary NASK National Research Institute ul. Kolska 12 Warsaw01-045 Poland

This paper presents the application of Kolmogorov-Arnold Networks (KAN) in classifying metal surface defects. Specifically, steel surfaces are analyzed to detect defects such as cracks, inclusions, patches, pitted surfaces, and scratches. Drawing on the Kolmogorov-Arnold theorem, KAN provides a novel approach compared to conventional multilayer perceptrons (MLPs), facilitating more efficient function approximation by utilizing spline functions. The results show that KAN networks can achieve better accuracy than convolutional neural networks (CNNs) with fewer parameters, resulting in faster convergence and improved performance in image classification. © 2025, CC BY.

关键词： Surface defects

来源：评论

学校读者我要写书评

暂无评论

Extracellular vesicles produced in hollow fiber bioreactor as potential drug delivery systems – cell uptake tracking with label-free optical diffraction tomography

Research Square

引用

Research Square 2024年

作者： Wawrowicz, Kamil Durak-Kozica, Martyna Marzejon, Marcin Trusiak, Maciej Stępień, Ewa L. Department of Medical Physics M. Smoluchowski Institute of Physics Faculty of Physics Astronomy and Applied Computer Science Jagiellonian University Kraków Poland Center for Theranostics Jagiellonian University Kraków Poland Institute of Micromechanics and Photonics Warsaw University of Technology Warsaw Poland

Extracellular vesicles (EVs) are emerging as one of the most promising candidates for novel drug delivery systems (DDS). Unique features, like biocompatibility, encapsulation capability and functionalization for precise targeting make them an attractive candidates for biomedical applications. However, despite the numerous benefits, progress in EVs-based DDS translation from bench to clinics remains highly challenging. One of key limitations that needs to be addressed are low production yield, limited reproducibility and poor understating of their natural, in vitro/in vivo behavior. To address these challenges, we aimed to establish a bioreactor-based system for long-term, high-yield EV production and evaluate their internalization capabilities using label-free tomography. Hollow fiber system was implemented as bioreactor for production and pre-purification of extracellular vesicles in long time manner. The obtained vesicles were characterized by spectral flow cytometry, tunable resistive pulse sensing (tRPR) and transmission electron microscopy (TEM). Subsequently, in order to investigate their biological functions, EVs uptake by target cells was evaluated with label-free techniques, such as Optical Diffraction Tomography (ODT) and Fourier Ptychographic Microscopy (FPM). Bioreactor enabled to performed five week long continuous production of extracellular vesicles with high homogeneity among each collected batch. This include tetraspanins expression, and more importantly, narrow size distribution with low, ~5% differences. Reconstructed tomographic images revealed that obtained extracellular vesicles can effectively internalize into the target, pancreatic, cells and were preferentially located in perinuclear area. This first stage results are highly promising for further development such approaches for high yield EVs production and its label-free in vitro tracking. © 2024, CC BY.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Novel Bandpass and Periodic Frequency Responses in Non-Metallic Dielectric Metamaterials 12

Novel Bandpass and Periodic Frequency Responses in Non-Metal...

引用

12th International Electrical Engineering Congress, iEECON 2024

作者： Malathong, Kritthanit Konpang, Jessada Boonthum, Direk Akkaraekthalin, Prayoot Chudpooti, Nonchanutt Thitimahatthanakusol, Phatsakul Rajamangala University Of Technology Krungthep Faculty Of Engineering Department Of Electrical And Telecommunication Engineering 2 Nanglingee Rd. Sathorn Thungmahamek Bangkok10120 Thailand Rajamangala University Of Technology Krungthep Division Of Physics Faculty Of Science And Technology 2 Nanglingee Rd. Sathorn Thungmahamek Bangkok10120 Thailand Department Of Electrical And Computer Engineering Faculty Of Engineering King Mongkut's University Of Technology North Bangkok 1518 Pracharat 1 Road Bangsue Bangkok10800 Thailand King Mongkut's University Of Technology North Bangkok Faculty Of Applied Science Department Of Industrial Physics And Medical Instrumentation Bangkok10800 Thailand Rajamangala University Of Technology Isan Faculty Of Engineering And Technology Department Of Telecommunication Engineering 744 Sura Narai Rd Nai-muang Mueang Nakhon Ratchasima Nakorn Ratchasima30000 Thailand

ISBN: (纸本)9798350383591

This study explores the remarkable properties of the Box-Ball Structure (BBS) within the 1GHz to 50GHz frequency range. The BBS structure demonstrates consistent bandpass frequencies with a periodic response and maintains a uniform 2.058GHz bandwidth at S11 = -6dB. Unlike metal-based structures, where changing C and L values can lead to frequency-dependent responses, the dielectric BBS structure exhibits stability. Its dielectric properties, including epsilon, mu, and refractive index (n), remain largely unaffected by frequency variations. Furthermore, the BBS structure is found to induce capacitance (C), as per the principles of virtual circuit theory, making it suitable for band-pass filter applications. The liquid state of epoxy resin allows for versatile structural designs, such as a hollow cylinder for omnidirectional antenna signal filtration. This research introduces the BBS as a dielectric resonator with unique properties and potential applications in various industries, particularly in the mobile phone sector. © 2024 IEEE.

关键词： Capacitance

来源：评论

学校读者我要写书评

暂无评论

RELEVANCE OF MONTE CARLO SIMULATION VALIDATION ANALYSIS IN THE SCOPE OF THE DOSE-3D PROJECT

Acta Physica Polonica B, Proceedings Supplement

引用

Acta Physica Polonica B, Proceedings Supplement 2022年第4期15卷

作者： Górska, Wioleta Rachwal, Bartlomiej Szumlak, Tomasz Department of Medical Physics Maria Sklodowska-Curie National Research Institute of Oncology Kraków Branch Garncarska 11 Kraków31-115 Poland AGH University of Science and Technology Faculty of Physics and Applied Computer Science Mickiewicza 30 Kraków30-059 Poland Cracow University of Technology Faculty of Materials Science and Physics Warszawska 24 Kraków31-155 Poland

We present an analysis of the characteristics of a therapeutic photon beam simulated by the G4RT simulator which is based on the Monte Carlo method. Development of the G4RT is a part of the Dose-3D project. In order to verify the reliability of the implemented simulator, spatial dose distributions were compared with the real measurements and results from the PRIMO simulator. For the purpose of assessment, the primary photons analysis was performed. Results show the reliability of the G4RT. Therefore, the simulator can be used in further research. © 2022 Jagellonian University. All rights reserved.

关键词： Monte Carlo methods

来源：评论

学校读者我要写书评

暂无评论

Dopant ions size impact on structural properties of ordered poly(3,4-ethylenedioxythiophene) systems

Dopant ions size impact on structural properties of ordered ...

引用

作者： Şniechowski, Maciej Kozik, Tomasz A. Luzny, Wojciech Faculty of Physics and Applied Computer Science AGH University of Science and Technology Al. Mickiewicza 30 Cracow30-059 Poland

The purpose of this work was to determine whether the structures of ordered part of novel poly(3,4-ethylenedioxythiophene) PEDOT : OTf (doped with trifluoromethanesulfonate anions) and PEDOT : HSulf (doped with hydrogensulfate anions) systems could really be simply the layered structure of PEDOT : Tos (doped with tosylate anions) with the counter ion changed to the appropriate one. Insight into this problem could be provided by molecular dynamics simulations but also by swarm intelligence optimization, developed earlier for the purpose of investigating the other structures. © 2020 Industrial Chemistry Research Institute. All rights reserved.

关键词： Sulfur compounds

来源：评论

学校读者我要写书评

暂无评论

Probing collectivity in heavy-ion collisions with fluctuations of the pT spectrum

arXiv

引用

arXiv 2024年

作者： Parida, Tribhuban Samanta, Rupam Ollitrault, Jean-Yves Department of Physical Sciences Indian Institute of Science Education and Research Berhampur Govt ITI Transit Campus Odisha Berhampur760010 India AGH University of Krakow Faculty of Physics and Applied Computer Science aleja Mickiewicza 30 Cracow30-059 Poland Université Paris Saclay CNRS CEA Institut de physique théorique Gif-sur-Yvette91191 France

Event-by-event fluctuations in the initial stages of ultrarelativistic nucleus-nucleus collisions depend little on rapidity. The hydrodynamic expansion which occurs in later stages then gives rise to correlations among outgoing particles which depend weakly on their relative rapidity. Azimuthal correlations, through which anisotropic flow (vn(pT)) is defined, have been the most studied. Here we study a new observable introduced in 2020 by Schenke, Shen and Teaney and dubbed v0(pT), which quantifies the relative change in the pT spectrum induced by a fluctuation. We describe how it can be measured. Using hydrodynamic simulations, we make quantitative predictions for v0(pT) of charged and identified hadrons. We then discuss how v0(pT) relates to two phenomena which have been measured: The increase of the mean transverse momentum in ultracentral collisions, and the event-by-event fluctuations of the transverse momentum per particle [pT]. We show that v0(pT) determines the dependence of these quantities on the pT cuts implemented in the analysis. We quantitatively explain the rise of σpT observed by ATLAS as the upper pT-cut is increased from 2 to 5 GeV/c. Copyright © 2024, The Authors. All rights reserved.

关键词： Heavy ions

来源：评论

学校读者我要写书评

暂无评论

Ni-Co-Fe-Mn-Ti High Entropy Alloy Manufacturing Via Powder Bed Fusion Using Elemental Powders

SSRN

引用

SSRN 2023年

作者： Bardo, Radoslaw Dziurka, Rafal Fryzowicz, Krzysztof Cios, Grzegorz Marciszko-Wiąckowska, Marianna Gajewska, Marta Hain, Caroline Bala, Piotr AGH University of Science and Technology Faculty of Metals Engineering and Industrial Computer Science Krakow Poland Progresja Katowice Poland AGH University of Science and Technology Academic Centre for Materials and Nanotechnology Krakow Poland Institute for Applied Laser Photonics and Surface Technologies ALPS Bern University of Applied Sciences Biel/Bienne Switzerland Laboratory for Mechanics of Materials and Nanostructures Empa Swiss Federal Laboratories for Materials Science and Technology Thun Switzerland

This study aimed to fabricate Ni-Co-Fe-Mn-Ti high entropy alloys (HEA) via powder bed fusion method using elemental powders. Based on thermodynamic calculations, 3 alloys were designed with medium to high entropy (from 3 to 5 components) and printed out. Additive manufacturing (AM) was performed, while varying the laser power and exposure time (point-by-point exposure laser working mode). The obtained samples were characterised by means of macroscopic observations combined with porosity analysis, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), electron backscatter diffraction (EBSD), X-ray diffraction (XRD), as well as compression and hardness test. The varied process parameters and the content of individual alloying elements directly impacted alloy processability and sample properties. We proved that it is possible to produce HEAs (Ni-Co-Fe-Mn-Ti) with low porosity and good chemical homogeneity from elemental powders. By comparing the processes of producing 3-, 4-, and 5-component alloys, it was observed that it is not the quantity of the components but the melting temperatures of the individual elemental powders and their tendency to oxidize that condition obtaining good 3D prints. The most promising results for 5-component HEAs were obtained for 1.45 ms of laser exposure time combined with laser powers of 250 and 300 W. © 2023, The Authors. All rights reserved.

关键词： 3D printing

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：