Linear Models

In this study, our primary aim is to assess and compare the efficacy of Support Vector Machines (SVM) employing various kernel functions: linear (LIN), polynomial (POL), Radial Basis Function (RBF), and sigmoid (SIG) in predicting the compressive strength of concrete.

14p viengfa 28-10-2024 2 2   Download

In this study, we propose a NOMA communication model combined with linear array antennas for the purpose of enhancing physical layer security. We introduce a model of 4 nodes: transmitter node S, receiver node D1, receiver node D2, eavesdropping node E.

10p viling 11-10-2024 1 1   Download

This study presents the application of six single algorithm-based models of artificial intelligence, such as artificial neural network (ANN), support vector machine (SVM), classification and regression trees (CART), linear regression (LR), general linear model (GENLIN), and automatic Chisquared interaction detection (CHAID) to predict the residual flexural capacity of corroded RC structures.

12p vibecca 01-10-2024 1 1   Download

In this study, one analytical procedure was established for simultaneous determination based on UV-Vis spectrometry coupled with several multivariate linear regress solved by Python – an open language programme to quantify three antibiotics, including TET, PGP, and CEX, in laboratoryprepared synthetic and pharmaceutical mixtures. This study also provided a universally analytical procedure for determining the three antibiotics in their pharmaceutical forms without the need for optimization for each analyte.

5p viyoko 01-10-2024 4 0   Download

In this paper, the effects of wind velocity according to height above the ground on the rain-wind induced vibration (RWIV) of stay cables are investigated. RWIV of the cable is modeled using the linear theory of cable vibration and the central difference algorithm.

14p vifilm 24-09-2024 3 1   Download

A big question in the numerical approaches for the mechanical behavior of the textile-reinforced concrete (TRC) composite under tensile loading is how to model the cracking of the cementitious matrix. This paper presents numerical results of 3-D modeling of TRC composite in which the non-linear behavior model was used by considering the cracking for the cementitious matrix.

12p vifilm 24-09-2024 1 1   Download

Mechanical behaviour of bituminous mixtures is characterized by the great thermal sensitivity and the large viscous effects. This paper focuses on the linear viscoelastic (LVE) behaviour of bituminous mixtures that is considered for pavement design.

10p vifilm 24-09-2024 1 1   Download

In this paper, therefore, given experimental data STCC columns, the authors used four useful AI models to estimate the axial strength in the STCC columns. Particularly, artificial neural networks (ANNs), support vector regression (SVR), linear regression (LR), and M5P were applied in this study.

14p vifilm 24-09-2024 2 1   Download

This article presents the modeling and the nonlinear dynamic analysis of base-isolated frame structures using linear theory (with non-classical damping matrix) and nonlinear theory (with 6-parameter Bouc-Wen bearing model). The computations are done with the aid from Julia scientific language.

8p viyoko 24-09-2024 4 1   Download

In this paper, with data from 71 countries in the period of 1986-2015, we employed GMM model and found that institutional quality plays a fundamental role in supporting support economic growth in the long run, in addition to traditional economic factors such as capital, labor, TFP, etc.. However, institutional quality only promotes economic growth when reaching a certain threshold. Hence, below this threshold, the improvement of institutional quality has a negative impact on economic growth.

12p toduongg 24-08-2024 4 1   Download

The study provides empirical evidence from a sample of 438 employees working in small and medium-sized enterprises in Vietnam through assessing the appropriateness of the measurement model and testing the linear structural model PLS- SEM. Research results show that the components of the green transformation leadership style have a positive influence on green human resource management.

15p toduongg 24-08-2024 6 1   Download

This modeling is performed on an experimental data set of complexes, where the metal ions of these complexes include transition ion metals and lanthanide ion metals. We use these models to develop a series of new thiosemicarbazone and their complexes; simultaneously, the complexes are worked out the stability constants from the novel models.

9p dianmotminh02 03-05-2024 7 2   Download

Lecture "Applied data science: Linear regression (review)" includes content: the regression model formulation, understanding the regression results, potential problems in regression model,... We invite you to consult!

20p kimphuong1144 04-12-2023 8 3   Download

Bài giảng "Các phương pháp định lượng 2: Mô hình Xác suất" trình bày các nội dung chính sau đây: khái niệm biến phụ thuộc không bị giới hạn và bị giới hạn (Limited Dependent Variables); một số mô hình sử dụng biến phụ thuộc bị giới hạn; tên gọi mô hình sử dụng biến phụ thuộc có giới hạn; mô hình xác suất tuyến tính - Linear Probability Model;... Mời các bạn cùng tham khảo nội dung chi tiết!

36p kimphuong1144 04-12-2023 9 3   Download

An improved six-node triangular finite element based on a twice-interpolation strategy (TIS) for accurately modeling singular stress fields near crack tips of two-dimensional (2D) cracks in solids is presented. In contrast to the traditional approaches, the approximation functions constructed based on the TIS involve both nodal values and averaged nodal gradients.

9p vidoctorstrange 06-05-2023 7 3   Download

The aim of this thesis is to ensure that accurate calibration factors are provided to radiotherapy clinics when moving to the new linac-based primary standard calibrations. Specifically, this thesis quantifies the error introduced when using a calibration factor from the ARPANSA Elekta linac on a Varian high energy platform beam at 6 MV.

102p runthenight05 01-03-2023 7 3   Download

In the course of current research the procedure of obtaining of the piecewise linear vibration systems time and frequency responses have been developed. The method is partly analytical and partly numerical and is based on combining of linear solutions of different sections in a cycle of motion. In a row with the method of obtaining of the exact steady state time and frequency response, also it is provided sensitivity analysis of the vibration isolator.

86p runthenight07 01-03-2023 10 3   Download

This study focuses on electrospinning with linear spinnerets to overcome the drawbacks of existing electrospinning methods. The aim of this study is thus to design and realise the linear spinnerets that hold the advantages in generating multiple polymer jet with a low applied voltage and easy controlling.

138p runthenight04 02-02-2023 5 2   Download

Initial public offerings (IPOs) underpricing is a widely researched area in finance literature. Yet, empirical evidence demonstrating and theoretical models explaining differences in underpricing across countries have remained an enigma in academia for a long time. This thesis consists of three independently interconnected essays that explain differences in underpricing observed across the Group of Twenty (G20) IPO markets.

365p runthenight04 02-02-2023 7 2   Download

This study develops an online unmanned UAV path-planning strategy for autonomous search and localisation of RF emitter. The UAV is equipped with Receiver Signal Strength (RSS) sensors to localise stationary radio frequency (RF) emitter. A high-fidelity non-linear measurement model of RF propagation in an urban environment is adopted for this purpose. The measurement model of the likelihood function is considered a Gaussian mixture.

105p runthenight04 02-02-2023 5 2   Download