Table of Contents Solution raise XGBoostError(_LIB.XGBGetLastError()) xgboost.core.DMatrix/Booster has not been initialized problem causes Solution 1. Check the object creation process 2. Check the object initialization process 3. Check random seed settings Summarize Sample code XGBoost library DMatrix object Solution raise XGBoostError(_LIB.XGBGetLastError()) xgboost.core.DMatrix/Booster has not been intialized Recently, when using the XGBoost library for machine learning […]
Tag: boost
Solving AttributeError: GradientBoostingRegressor object has no attribute staged_decision_function
Table of Contents Solving AttributeError: ‘GradientBoostingRegressor’ object has no attribute ‘staged_decision_function’ Solution 1: Upgrade the sklearn version Solution 2: Use the staged_predict function instead Resolve AttributeError: ‘GradientBoostingRegressor’ object has no attribute ‘staged_decision_function’ When using ??GradientBoostingRegressor?? for gradient boosting regression, you sometimes encounter the error ??AttributeError: ‘GradientBoostingRegressor’ object has no attribute ‘staged_decision_function’??. This error is usually […]
[Python code implementation] [XGBoost-Stress-Strain prediction] Mechanical property data of open-pore AlSi10Mg materials and open-pore AlSi10Mg-SiC composite materials with different pore diameters and strain rates
Welcome to this blog Advantages of bloggers:Blog content should be as thoughtful and logical as possible for the convenience of readers. Motto:He who travels a hundred miles is half as good as ninety. The directory of this article is as follows: Table of Contents 1 Overview 2 Operation results 3 References 4 Python code, data, […]
[OpenMP (1)] OpenMP multi-thread parallelization for shared memory parallel computing, comparison with STL and Boost multi-thread libraries
slurm multi-threading usage guide When using multi-threaded programs such as pthread and openmp, a single node and multiple cores are generally used for parallel computing. Assuming that the multi-threaded program is a program, the syntax of a generally submitted task is: Interactive: srun -c 8 program [args] Script submission: multi.sbatch #!/bin/bash #SBATCH -c 8 program […]
Tuning hyperparameters in XGBoost using genetic algorithms
Introduction Genetic algorithms as defined in Wikipedia are inspired by the process of natural selection proposed by Charles Darwin. More generally, we can use the following description to understand natural processes and how it relates to genetic algorithms. For more content and Complete code follow the public account [Little Z’s Scientific Research Daily] to get […]
[Python code implementation] [XGBoost-Stress-Strain prediction] Mechanical property data of open-pore AlSi10Mg materials and open-pore AlSi10Mg-SiC composite materials with different pore diameters and strain rates
Welcome to this blog Advantages of bloggers:Blog content should be as thoughtful and logical as possible for the convenience of readers. Motto:He who travels a hundred miles is half as good as ninety. The directory of this article is as follows: Table of Contents 1 Overview 2 Operation results 3 References 4 Python code, data, […]
PYTHON user churn data mining: establishing logistic regression, XGBOOST, random forest, decision tree, support vector machine, naive Bayes and KMEANS clustering user portraits…
Original link: http://tecdat.cn/?p=24346 In today’s brand marketing stage where products are highly homogeneous, the competition between enterprises is concentrated in the competition for customers(Click “Read the original text” at the end of the article to get the complete Tag data). “Users are God” prompts many companies to compete for as many customers as possible at […]
Solving xgboost.core.XGBoostError: b[20:58:45] C:\Users\Administrator\Desktop\xgboost\dmlc-core\s
Table of Contents Solve xgboost.core.XGBoostError: b'[20:58:45] C:\Users\Administrator\Desktop\xgboost\dmlc-core\s Cause of the problem Solution Method 1: Modify the file path Method 2: Modify xgboost source code Summarize Solve xgboost.core.XGBoostError: b'[20:58:45] C:\Users\Administrator\Desktop\xgboost\dmlc-core\s Recently, when using xgboost for machine learning, I encountered a problem: xgboost.core.XGBoostError: b'[20:58:45] C:\Users\Administrator\Desktop\xgboost\dmlc-core\ \src\io\local_filesys.cc:209: Check failed: allow_null \\ ‘ In this article, I will introduce […]
Solving TypeError: Singleton array array(data_input/xgboost/data_RentListingInquries/RentListingInqurie
Table of Contents Solving TypeError: Singleton array array(‘data_input/xgboost/data_RentListingInquries/RentListingInqurie wrong reason Solution 1. Check data dimensions 2. Check data type Summarize Sample code Detailed introduction to XGBoost principle Features application Solving TypeError: Singleton array array(‘data_input/xgboost/data_RentListingInquries/RentListingInqurie When using XGBoost for machine learning modeling, various problems are often encountered. One of the common errors is TypeError: Singleton array […]
[Python code implementation] [XGBoost-Stress-Strain prediction] Mechanical property data of open-pore AlSi10Mg materials and open-pore AlSi10Mg-SiC composite materials with different pore diameters and strain rates
Welcome to this blog Advantages of bloggers:Blog content should be as thoughtful and logical as possible for the convenience of readers. Motto:He who travels a hundred miles is half as good as ninety. The directory of this article is as follows: Table of Contents 1 Overview 2 Operation results 3 References 4 Python code, data, […]