Density based Methods
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In this paper, the authors present a method to solve these problems. Wherein, the motion of targets is represented in the mixed coordinate system 3D base on combining PHD (Probability Hypothesis Density) and JPDA (Joint Probability Data Association). This method can track multiple targets in the most general case, that is to change the target number, system model and measurement model which is non-linear as the noise is non-Gaussian.
9p viambani 18-06-2024 3 1 Download
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This study focuses on examining the effect of the π bridge on the properties of the molecule. The structural parameters of the molecular geometry were optimized, the HOMO and LUMO energies were calculated and analyzed in detail. In addition, the absorption wavelength, excitation energy, vibration intensity and electron transfer were calculated through the time-dependent density functional theory (TD-DFT) method.
6p dianmotminh02 03-05-2024 4 2 Download
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Assessing ship collision risks considering human factors presents persistent challenges due to the multivariate uncertainties faced by seafarers. Therefore, this study proposes a fuzzy-logic-based method to model ship collision risks in an area considering human factors.
10p viohoyo 25-04-2024 6 2 Download
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Ebook "Statistical pattern recognition" includes content: Introduction to statistical pattern recognition, density estimation – parametric, density estimation – nonparametric, linear discriminant analysis, nonlinear discriminant analysis – kernel methods, nonlinear discriminant analysis – projection methods, tree-based methods, performance, feature selection and extraction, clustering, additional topics,... and other contents.
515p haojiubujain07 20-09-2023 3 2 Download
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Grain boundary strengthening is a method of strengthening materials by changing their average crystalize (grain) size, exhibiting the basic relationship between yield stress and the grain size of the materials. This methodology is based on the observation of grain boundaries that are insurmountable borders for dislocations and the number of dislocations located within a grain.
15p viberkshire 09-08-2023 8 3 Download
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In this work, we theoretically investigate phase transitions, electronic structures and thermodynamic properties of Mg2X (X ¼ Ge, Si and Sn) under high pressures. To reach this goal, the total energy has been calculated by using the full-potential linearized augmented plane wave (FP-LAPW) method with generalized gradient approximation (GGA), local density approximation (LDA) and EngeleVosko approximation (EV-GGA), which are based on the exchange-correlation energy optimization.
10p viberbers 09-08-2023 6 3 Download
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This study proposed a novel clustering method that employs density peak-based fuzzy c-means (DP-FCM) and forensic-based investigation (FBI) algorithms. The proposed method (denoted as DP-FBI-FCM) aims to provide an effective clustering technique that can exploit the global optimal solution for custom segmentation problems.
6p viwarmachine 01-07-2023 5 2 Download
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Major advances in genotyping technology have generated high-density maps of single nucleotide polymorphism (SNP) markers that provide an unprecedented opportunity to identify genes underlying complex traits. Several family-based statistical methods showing robust population stratification have been developed to test the association between multiple markers and disease-susceptibility genes.
6p vinarcissa 21-03-2023 2 1 Download
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Density Functional based Tight-binding method with dispersion corrections and Molecular Dynamics (MD) simulations were performed to study the carbon dioxide (CO2) adsorption process on a metal-organic framework (IRMOF-1). The adsorption centers, adsorption energy, adsorption capacity, diffusion coefficient, and the effect of temperature on the adsorption process have been thoroughly examined and elucidated.
11p vidudley 20-02-2023 5 2 Download
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The GAW20 group formed on the theme of methods for association analyses of repeated measures comprised 4sets of investigators. The provided “real” data set included genotypes obtained from a human wholegenome association study based on longitudinal measurements of triglycerides (TGs) and high-density lipoprotein in addition to methylation levels before and after administration of fenofibrate.
5p vihagrid 30-01-2023 4 3 Download
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In this work, we present the acidity of BAS and silanols in zeolites depending on their configurations in zeolite nanoparticles. The acidity was evaluated based on the deprotonation energy (DPE) calculated by the density functional method and compared to experimental spectra.
8p vironald 15-12-2022 9 2 Download
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In this study, masonry infills are considered a building envelope with loadbearing function. A finite element procedure for the effective properties of microcracked viscoelastic masonry based on homogenization technique is provided to take into account the influence of crack density and time.
15p vimclaren 20-10-2022 5 2 Download
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Lecture Data mining: Lesson 12. The main topics covered in this chapter include: cluster analysis; hierarchical methods; density-based methods; grid-based methods; model-based clustering methods; outlier analysis;... Please refer to the content of document.
49p tieuvulinhhoa 22-09-2022 11 4 Download
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Lecture Data mining: Lesson 11. The main topics covered in this chapter include: cluster analysis; types of data in cluster analysis; a categorization of major clustering methods; partitioning methods; hierarchical methods; density-based methods; grid-based methods;... Please refer to the content of document.
44p tieuvulinhhoa 22-09-2022 9 3 Download
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Part 2 of book "Introduction to machine learning" provide with knowledge about: optimization; unconstrained smooth convex minimization; online learning and boosting; conditional densities; kernels and function spaces; linear models;...
136p britaikridanik 05-07-2022 32 4 Download
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This paper proposes a node location identification in WSN based on a combined Ant Lion Optimizer (ALO) with a typical model of localization. The fitness function is modeled mathematically based on estimating distances of the WSN nodes. The updating solutions of the population are figured out for position correcting to improve the node positioning accuracy. The effects of parameters like node density and communicating range is verified in the experiments to evaluate the performance of the proposed method in terms of concerning average localization error and success ratio.
11p linyanjun_2408 21-04-2022 11 3 Download
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The experimental data were compared with the theoretical results obtained by the quantum chemical calculations of the DFT/B3LYP method with LANL2DZ basis set. A detailed interpretation of the FT-IR spectra of the studied compounds was performed based on the total energy distribution. In order to investigate the electronic structures and the UV-Vis spectrum of complex 5, time-dependent density functional theory calculation was taken into account.
45p tudichquannguyet 29-11-2021 9 2 Download
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Phenyl-4,4-di(3,6-dibutoxyphthalonitrile) (3) was synthesized by the reaction of 1,4-phenylenebisboronic acid (1) and 4-bromo-3,6-dibutoxyphthalonitrile (2), using Suzuki cross-coupling reaction. The newly synthesized compound (3) was characterized by FT-IR, MALDI-MS, ESI-MS, 1 H-NMR, 13C-NMR, and 13C-DEPT-135-NMR.
11p tudichquannguyet 29-11-2021 6 1 Download
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Scalable, highly stable supercapacitor electrodes were developed from the mixture of a tea factory waste based activated carbon (AC) and a low-cost electrochemical exfoliated graphene (EEG). The hybrid electrodes showed notably enhanced stability at high current densities. The AC sample was prepared by chemical method and exposed to a further heat treatment to enhance electrochemical performance. Graphene used in the preparation of hybrid electrodes was obtained by direct electrochemical exfoliation of graphite in an aqueous solution.
15p tudichquannguyet 29-11-2021 10 1 Download
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The results showed that AGC stocks were significantly lower than SOC, normally ranging from 9.9 to 29.55 tons ha-1 . Using the Walkley-Black method, the total SOC was estimated at the range of 81.76 to 323.83 tons ha-1 (with an average of 161.47±15.85 tons ha-1 ), which indicated a strong relationship between tree density and SOC. In addition, using the IDW interpolation method, this study estimated that the total CO2 absorbed by mangrove forests was 1,631,834 tons in Bang La and Dai Hop.
20p spiritedaway36 25-11-2021 13 1 Download