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3601
The good, the better and the challenging: Insights into predicting high-growth firms using machine learning
Published 2024-12-01“…Our findings indicate that XGBoost achieves the highest performance, followed by Random Forest and Logistic Regression, demonstrating their effectiveness in distinguishing between high-growth and non-high-growth firms. …”
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3602
A Novel Coherence Reduction Method in Compressed Sensing for DOA Estimation
Published 2013-01-01“…A novel method named as coherent column replacement method is proposed to reduce the coherence of a partially deterministic sensing matrix, which is comprised of highly coherent columns and random Gaussian columns. The proposed method is to replace the highly coherent columns with random Gaussian columns to obtain a new sensing matrix. …”
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3603
Machine Learning Methods for Forecasting Intermittent Tin Ore Production
Published 2024-10-01“…This study's findings show that a serial combination of the Random Forest classification method and CatBoost forecasting can produce accurate tin ore production forecasts for the selected CSD (RMSE = 0.271, MAE = 0.179, MAE = 0.730, F1-score = 0,80). …”
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3604
Survival machine learning methods for mortality prediction after heart transplantation in the contemporary era.
Published 2025-01-01“…In the post-policy cohort, Random Survival Forests and Cox Gradient Boost had the highest performances with C-indices of 0.628 and 0.627. …”
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3605
Correspondence: Can Menstrual Cycle Length Predict Cardiovascular Risk in Healthy Indian Females?
Published 2025-01-01“…There are two main varieties: probability sampling and non probability sampling. Convenient non random sampling was incorrectly referred to as simple random sampling in the article. …”
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3606
Modeling the Traveler’s Route Choice Behavior under Unexpected Accidents
Published 2023-01-01“…The bounded rationality characteristics of travelers, such as the time perception difference coefficient, psychological threshold effect coefficient, and scale effect, are introduced into the generalized random regret minimization (GRRM) model. An improved generalized random regret minimization (IGRRM) model is constructed based on travelers’ route choice behavior under unexpected accidents. …”
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3607
“Pharmacological” analysis of atrial fibrillation maintenance mechanism: reentry, wavelets, or focal?
Published 2025-01-01“…Improvement in AF-org caused by anti-AF agents before AF cardioversion is coherent with simultaneous multiple random reentries and wavelets. However, simultaneous multiple reentries are unlikely to occur regularly (most of the contemporary AF mapping studies report either a single reentry at a time or no reentry at all), and the ability of random wavelets to maintain AF is speculative. …”
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3608
Sufficient statistics for the Pareto distribution parameter
Published 2021-06-01“…For the product of the sample elements considered as a random variable the distribution function and probability density are found; mathematical expectation, higher moments, and differential entropy are calculated. …”
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3609
Optimal investment game for two regulated players with regime switching
Published 2024-12-01“…We provided a numerical method using a Markov chain approximation scheme and presented several numerical examples to illustrate the impact of regime switching and random time solvency on optimal policies.…”
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3610
The influence of social media applications on learning English as a second language
Published 2025-01-01“…Four teachers were asked to provide random grades of their students to check how they are affected. …”
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3611
A Novel Approach for Detecting DGA-Based Botnets in DNS Queries Using Machine Learning Techniques
Published 2021-01-01“…The performance of the proposed model has been evaluated using different classifiers of machine learning algorithms such as decision tree, support vector machine, random forest, and logistic regression. Experimental results show that the random forest algorithm can be used effectively in botnet detection and has the best botnet detection accuracy.…”
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3612
The Effect of Resampling Techniques on Model Performance Classification of Maternal Health Risks
Published 2024-08-01“…The results showed that the SMOTE-ENN and ADASYN-ENN methods significantly improved the model's performance in predicting maternal disease. Random Forest and Decision Tree algorithms showed the best results in terms of accuracy and consistency. …”
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3613
The Profit Rate-Interest Rate Nexus: Evidence from Machine Learning Algorithms
Published 2023-02-01“…Second, the study uses random forest, bagging, and boosting algorithms as methodological tools and benefits from the apparent advantages these algorithms have empirically.…”
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3614
Failure Mechanism and Factor of Safety for Spatially Variable Undrained Soil Slope
Published 2019-01-01“…The undrained shear strength of cohesive soil slope is modeled by a one-dimensional random field in the vertical direction. The FS and FM for a specific realization of random field are determined by SRT embedded in FEM- and FDM-based software (e.g., Phase2 6.0 and FLAC) and LEM, respectively. …”
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3615
Mesoscopic Numerical Computation of Compressive Strength and Damage Mechanism of Rubber Concrete
Published 2015-01-01“…This paper presents the results of a study, based on the Walraven equation of the production of a mesoscopic random aggregate structure containing various rubber contents and aggregate sizes. …”
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3616
PROBABILITY DISTRIBUTION OF SINGLE-LAYER CYLINDRICAL VESSEL BURST PRESSURE
Published 2020-01-01“…Research results indicated that:( 1) Based on the engineering practice of Chinese standard,the application range of the formula can be divided into the 3 groups according to the design pressure which are no exceeding 35 MPa,between35 MPa and 100 MPa,and no more than 100 MPa,respectively;( 2) According to the relationship between design pressure and burst pressure,the actual burst pressure of the formula application range sample was no more than 105. 5 MPa,between 91. 0 MPa and 329. 6 MPa,and no more than 329. 6 MPa,respectively;( 3) When the significance was 0. 05,the ratio of the samples measured burst pressure and mid-diameter formula and Tresca formula calculated values is 6 random variables with the normal distribution.( 4) When the 2-sides confidence was 98%,the distribution parameters value range of 6 random variables were obtained respectively.…”
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3617
Fatigue Strength Analysis of Cracked Wind Turbine Planetary Gear Train Under Variable Load Excitation
Published 2022-05-01“…The external excitation caused by random wind load can greatly affect the fatigue life of the wind power transmission system. …”
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3618
A Multilayer Feed Forward Small-World Neural Network Controller and Its Application on Electrohydraulic Actuation System
Published 2013-01-01“…In this paper, a new neural network model is constructed with a structure topology between the regular and random connection modes based on complex network, which simulates the brain neural network as far as possible, to design a better neural network controller. …”
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3619
Prediction of Disease Stage by Machine Learning Classification Methods for Covid-19 Patients
Published 2024-12-01“…The random forest model with 9 variables was the best performing model. …”
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3620
Applied Comparison of Meta-analysis Techniques
Published 2013-02-01“…Basic meta-analysis models are fixed-effects, random-effects, and meta-regression.…”
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