Showing 3,441 - 3,460 results of 18,707 for search 'optimal different methods', query time: 0.30s Refine Results
  1. 3441

    Non-Contact Oxygen Saturation Estimation Using Deep Learning Ensemble Models and Bayesian Optimization by Andrés Escobedo-Gordillo, Jorge Brieva, Ernesto Moya-Albor

    Published 2025-07-01
    “…Additionally, parameters and hyperparameter Bayesian optimization and an ensemble technique over the dataset magnified were applied. …”
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  2. 3442

    Silicon Mode (de)Multiplexer Based on Cascaded Particle-Swarm-Optimized Counter-Tapered Couplers by Weiwei Chen, Hongxiang Li, Bohao Zhang, Pengjun Wang, Shixun Dai, Yuxiao Liu, Jun Li, Yan Li, Qiang Fu, Tingge Dai, Hui Yu, Jianyi Yang

    Published 2021-01-01
    “…By using the particle swarm optimization algorithm and finite difference time domain method, structural parameters of each counter-tapered coupler in our proposed mode (de)multiplexer are optimized so that high conversion efficiencies can be obtained and coupling lengths can be significantly shortened. …”
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  3. 3443

    Comparative Analysis of the Results of Various Methods for Pancreatic Head Resection in Chronic Pancreatitis by A. R. Propp, E. N. Degovtsov

    Published 2020-10-01
    “…The development of an optimal method for the surgical treatment of CP with damage to the pancreatic head (PH) is one of the tasks of surgical pancreatology.Aim of study To perform comparative evaluation of immediate and late results of different types of PH resection in CP.Material and methods A prospective controlled study was conducted with a comparative analysis of the results of surgical treatment of 131 patients with CP with pancreatic head enlargement. …”
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  4. 3444

    Data mining methods application in reflexive adaptation realization in e-learning systems by A. S. Bozhday, Y. I. Evseeva, A. A. Gudkov

    Published 2017-09-01
    “…Achieving this effect is important for e-learning systems, since they are quite expensive.The main results of the work include: the proposed classification of software adaptation mechanisms, taking into account the latest trends in the IT field in general and in the field of e-learning in particular; Formulation and formalization of the principle of reflexive adaptation in software systems applicable to a wide class of applied programs; The development of a universal architectural template of the software system, oriented to restructuring in the process of operation; Algorithm for self-optimization of the user interface of the software system based on methods of data mining.The development of the theoretical basis for the automatic reorganization of e-learning software will increase the flexibility of the virtual educational environment and increase the period of its exploitation. …”
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  7. 3447

    REPARATION SYSTEM GENES: POPULATION DIFFERENCES IN HEREDITARY OVARIAN AND BREAST CANCER DETERMINED BY NEXT-GENERATION SEQUENCING by O. I. Brovkina, M. G. Gordiev, R. F. Enikeev, M. O. Druzhkov, L. Kh. Shigapova, E. I. Shagimardanova, O. А. Gusev, V. V. Kosiy, D. S. Khodyrev, A. G. Kedrova, R. Sh. Khasanov, A. G. Nikitin

    Published 2017-06-01
    “…Performed NGS analysis of 139 Tatar female patients with hereditary BC and OC has identified 61 mutations in the reparation system genes, one third of which (28 %) didn’t belong to the BRCA1/BRCA2 genes.Conclusion. The NGS method allowed to identify rare mutations characterizing different ethnic groups facilitating prescription of optimal chemotherapy.…”
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  8. 3448
  9. 3449

    Optimal allocation of resources in female sex worker targeted HIV prevention interventions: model insights from Avahan in South India. by Jasmina Panovska-Griffiths, Anna Vassall, Holly J Prudden, Aurélia Lépine, Marie-Claude Boily, Sudha Chandrashekar, Kate M Mitchell, Tara S Beattie, Michel Alary, Natasha K Martin, Peter Vickerman

    Published 2014-01-01
    “…A deterministic model for HIV transmission amongst FSWs and clients projected the impact and cost of intervention strategies for different scale and intensity, and identified the optimal strategies that maximise impact for different budget levels.…”
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  10. 3450

    Multidimensional assessment of the spatiotemporal evolution, driving mechanisms, and future predictions of urban heat islands in Jinan, China by Lingye Tan, Tiong Lee Kong Robert, Yan Zhang, Siyi Huang, Ziyang Zhang

    Published 2025-04-01
    “…Key findings include: (1) a significant northward shift in the LST centroid and a 26.64% expansion in high-temperature areas, with noticeable cooling effects in the city center. (2) A nonlinear relationship between LST and socioeconomic factors, particularly GDP, where cooling effects were observed when GDP exceeded 10,000 yuan/km2. (3) Synergistic interactions, especially between topographic factors (such as the Digital Elevation Model, DEM) and land-use indices (e.g., normalized difference built-up index, NDBI; normalized difference vegetation index, NDVI), were found to significantly influence LST variations. (4) The Oscillating Sequence Grey Model (OSGM), optimized for handling oscillating data sequences, demonstrated superior predictive accuracy, projecting a 20.72% increase in extreme high-temperature zones and a 40.61% reduction in moderate-high-temperature zones by 2047. …”
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  11. 3451

    Therapeutic effect of hUC-MSCs from different transplantation routes on acute liver failure in rats by Yonghong Wang, Yonghong Wang, Bei Wu, Yachao Tao, Yachao Tao, Menglan Wang, Menglan Wang, Dongbo Wu, Dongbo Wu, Enqiang Chen, Enqiang Chen, Hong Tang, Hong Tang

    Published 2025-05-01
    “…Recent studies have indicated that stem cells can effectively treat this condition. However, the optimal route for stem cell transplantation in the treatment of ALF remains unclear. …”
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  12. 3452

    2bRAD-M reveals differences in microbial communities between Modic changes and disc herniation by Fang Yang, Jingtao Zhang, Junpu Zha, Guolei Zhang, Jia Li, Wei Du, Lin Liu, Jun Di

    Published 2025-03-01
    “…In this study, we employed 2bRAD-M (2b Restriction Site Associated DNA sequencing for Microbiome), a new sequencing technology capable of accurately characterizing bacteria, fungi, and archaea in samples with low microbial biomass at species-level resolution.MethodsWe surveyed 20 intervertebral disc (IVD) samples, including 10 IVD samples with Modic changes and 10 herniated disc samples. 2bRAD-M was performed to explore whether microbial differences existed between Modic change and herniated disc samples.ResultsIn total, 332 microbial species were identified, including 75 species shared between the two groups. …”
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  15. 3455

    Soil moisture variation and affecting factors analysis in the Zhangjiakou–Chengde district based on modified temperature vegetation dryness index by Jintao Zheng, Xiaomei Jin, Qing Li, Jie Lang, Xiulan Yin

    Published 2024-11-01
    “…Based on the Moderate Resolution Imaging Spectroradiometer (MODIS) and the Global Land Data Assimilation System (GLDAS) datasets, the spatiotemporal variation in surface soil moisture in the ZC was simulated from 2001 to 2021 using the temperature vegetation dryness index (TVDI) model. The optimal parameter geographical detector (OPGD) method was used to identify the contributions of 10 factors affecting soil moisture. …”
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  16. 3456
  17. 3457

    Underwater Network Time Synchronization Method Based on Probabilistic Graphical Models by Yujie Ouyang, Yunfeng Han, Zeyu Wang, Yifei He

    Published 2024-11-01
    “…The experimental results show that the method can complete global time synchronization within a cycle while achieving a clock difference correction accuracy higher than seconds, which significantly optimized the synchronization cycle and efficiency, and reduced the energy consumption of the acoustic communication.…”
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  18. 3458

    Design of path planning robot simulator by applying sampling based method by Heru Suwoyo, Julpri Andika, Andi Adriansyah

    Published 2025-05-01
    “…Although the existing solutions are innovative, comparison between the existing methods is still difficult due to significant differences in convergence speed, implementation complexity, and quality of the resulting paths. …”
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  20. 3460

    Adaptive Whole-Brain Dynamics Predictive Method: Relevancy to Mental Disorders by Qian-Yun Zhang, Chun-Wang Su, Qiang Luo, Celso Grebogi, Zi-Gang Huang, Junjie Jiang

    Published 2025-01-01
    “…To address this, we validated parameter fitting methods using simulated networks and synthetic models, introducing improvements such as individual-specific initialization and optimized gradient descent, which reduced individual data loss. …”
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