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chidungkt
Nguyen Chi Dung
Recently Published
Quantitative Finance: Portfolio Theory (P1)
4 days ago
Tidy Tuesday Project for Data Science
16 days ago
Administrative Map of Vietnam + Spratly and Paracel Islands
22 days ago
Reshaping Data from Wide to Long (and Vice Versa)
27 days ago
Hierarchical Clustering
about 1 month ago
Infographics Using R
about 2 months ago
Data Wrangling and Visualization with R (Course 11 - Hanoi)
2 months ago
Shapes of Histograms
3 months ago
Compare Maximum Profit between Random Forest and Logistic (tidymodels)
3 months ago
Understand ROC Curve and Search Threshold that maximizes Profit
3 months ago
Data pre-processing for Kalapa Credit Scoring Challenge
4 months ago
Should we impute missing data? (Python)
4 months ago
Effect of Hyperparameter Optimization on Profit (Python)
4 months ago
Effect of AUC on maximum profit (Python)
4 months ago
Profit Criterion for selecting Machine Learning Classifier (Python)
4 months ago
Bayesian Optimization for searching optimal Recall for XGBoost Classifier (Python)
4 months ago
Benford law as a feature engineering technique for Machine Learning Models
5 months ago
Why You Should Not Use Pie Chart
6 months ago
Misleading Charts by The Economist and Correction
6 months ago
U.S. Unemployment
6 months ago
2019 Kaggle ML & DS Survey (Part 1)
6 months ago
Crawl Data from Vietnam Job Websites
6 months ago
Recommendation System (Part 4)
6 months ago
Bar Chart Race Animation
6 months ago
Streetmap of Ho Chi Minh City
6 months ago
Ages through Time and Space
6 months ago
Recommendation System (Part 3)
7 months ago
Recommendation System (Part 2)
7 months ago
Visualize Likert Scales
7 months ago
Recommendation System (Part 1)
7 months ago
Math Score Distribution by Ha Giang
8 months ago
Download Your Favorite Textbook and Scientific Reseach Paper
8 months ago
Data Imputation: A case from Kaggle Competition (Part 1)
9 months ago
Dual y-axis with ggplot2: Safe Skies
10 months ago
SIR model for understanding Coronavirus pandemic
10 months ago
Coronavirus cases in Vietnam (Line + Bar Version)
10 months ago
Coronavirus cases in Vietnam
10 months ago
Auto ARIMA for forecasting Deaths by Coronavirus in Italy
10 months ago
Deaths by Coronavirus between China and Italy
11 months ago
Corona Virus Prevalence by Country
11 months ago
Automated Machine Learning for Credit Scoring Problem
11 months ago
Predicting Employee Churn: A Short Comparision between Xgboost and Keras Deep Learning
11 months ago
Classification Cutoff Maximizes Profit using Bayesian Optimization
11 months ago
Bayesian Optimization for Turning XGBoost Hyperparameter
11 months ago
Kalapa’s Credit Scoring Challenge - A Naive Approach with Ranking of 19
12 months ago
Pity Russia’s billionaires (complete version)
about 1 year ago
Pity Russia’s billionaires
about 1 year ago
Average annual hours worked by persons engaged, 2017
about 1 year ago
Share of Vietnam government spending on health care, 2014
about 1 year ago
Vietnam ’s fertility rate
about 1 year ago
Origin of crude oil imported to China
about 1 year ago
Matters of the heart
about 1 year ago
Global terrorism, 2000 - 2014 (Version 2)
about 1 year ago
Global terrorism, 2000 - 2014 (Version 1)
about 1 year ago
Greying of the Nobel laureates
about 1 year ago
Gender Pay Gap by Britain Banks
about 1 year ago
Gap in Life expectancy between Male and Female
about 1 year ago
Life expectancy gender gap, 2018
about 1 year ago
AUC or IV Criterion - Which Method is Better for Feature Engineering?
about 1 year ago
Predict Customer Purchase (Deployment/Application)
about 1 year ago
Predict Customer Purchase (GBM and Adjust Cutoff for Classification)
about 1 year ago
Predict Customer Purchase
over 1 year ago
Market Segmentation: K-means Clustering Algorithm
over 1 year ago
Hanoi Housing Market: Predict House Price
over 1 year ago
Average Penis and Breast Size by Country
over 1 year ago
30 Shortest Countries, 2019
over 1 year ago
Create Bar Chart with Descending Order of Proportion by Using geom_col()
over 1 year ago
Spam Detection Using Random Forest Algorithm
over 1 year ago
Share of Government Spending on Health Care: Vietnam and United States
over 1 year ago
Portfolio Theory: Estimate Beta for All Companies Listed on Ho Chi Minh Stock Exchange (HOSE)
over 1 year ago
wbstats - R Package for Collecting Data From World Bank
over 1 year ago
Quantile Regression Using R
over 1 year ago
Replicate a The Economist Style Graph (Area Chart)
over 1 year ago
Mapping Vietnam Provincial Competitiveness Index 2018
over 1 year ago
Population Structure of Vietnam: 1995 - 2018
over 1 year ago
Scraping Data from VNDIRECT Securities Corporation
over 1 year ago
Reodering for Grouped Barplot
over 1 year ago
Kaggle Data Science Survey (Median Salary by Major)
over 1 year ago
Mini Course: Collect Data for 78704 Homes for Sale in Hanoi
over 1 year ago
US Military Fatal Casualties During the Vietnam War
over 1 year ago
Using Accuracy Criterion for Credit Classification Can Cause Disaster for Banks
over 1 year ago
R for Psychologists and Marketing Research: Structural Equation Modeling (SEM)
over 1 year ago
Visualization of Classifier Performance
over 1 year ago
Population Pyramid Graph for Vietnam in 2018
over 1 year ago
Kaggle Data Science Survey (Hardware Using for Data Science Projects)
over 1 year ago
Kaggle Data Science Survey (Compensation and Degree)
over 1 year ago
Kaggle Data Science Survey (Data Wrangling May Be The Most Time-Consuming)
over 1 year ago
Kaggle Data Science Survey (Most Used ML Models)
over 1 year ago
Kaggle Data Science Survey
over 1 year ago
Effect of AUC on Sensitivity and Specificity by Machine Learning Model
over 1 year ago
Top Seven Trade Partners of Vietnam by Export Volume
over 1 year ago
IFRS 9 and CECL Credit Risk Modelling (Chapter 3, Part 1)
over 1 year ago
China is Redrawing the Map of World Science
over 1 year ago
Worst Airlines by Flight Delays/Cancellations in Vietnam
over 1 year ago
World Nuclear Power Report 2018
over 1 year ago
A Detailed Comparison Between Machine Learning and Logistic Approach to Scorecard Modelling/Credit Scoring
over 1 year ago
The Problem of Monotonic Binning when Developing Scorecard Model
over 1 year ago
IFRS 9 and CECL Credit Risk Modelling and Validation (Chapter 2)
over 1 year ago
Does Balancing Classes Improve Classifier Performance?
over 1 year ago
Never Argue with Stupid People
over 1 year ago
Age Distribution of American Boys Named Joseph
over 1 year ago
Why Milions of Vietnamese Men Must Be Staying Single in The Future?
over 1 year ago
Deep Learning for Credit Scoring in the Era of Big Data (Adapted from a research conducted by MIS, Banking Academy of Vietnam)
almost 2 years ago
China–United States Trade War: Facts and Figures
almost 2 years ago
Consequences of WOE Binning for Logistic Regression
almost 2 years ago
Perform Logistic Regression with R
almost 2 years ago
Cumulative Accuracy Profile (CAP) and Accuracy Ratio (AR) Estimation
almost 2 years ago
Does WOE Transformation Improve Logistic Regression’s Performance?
almost 2 years ago
A Naive Approach to Ranking Vietnam Universities
about 2 years ago
When You Need Explanation: Decision Tree Algorithms (CART and CHAID)
about 2 years ago
Lasso and Ridge Logistic (h2o Package)
about 2 years ago
My Secret Codes: Logistic vs Support Vector Machine (kernlab Package)
about 2 years ago
Ensemble Learning Methods: What Are They and Why Use Them?
about 2 years ago
Use Autoencoder as a Feature Engineering Technique
about 2 years ago
Training and Turning Parameters for Random Forest Using h2o Package
about 2 years ago
Detecting Financial Fraud Using Machine Learning: War Against Imbalanced Data
about 2 years ago
Measuring Model Performance in Classification Models: A Short Explanation About Confusion Matrix and Its Application
about 2 years ago
Cancer Prevalence Across All Types by Country in 2016
about 2 years ago
Problem of Low Default Portfolios (LDPs) in Credit Scoring and Modelling Scorecard
about 2 years ago
An Application of Credit Scoring: Developing Scorecard Model for A Vietnam Commercial Bank
about 2 years ago
Feature Selection for Logistic Classifier based on AIC Criterion
about 2 years ago
Missing-data Imputation and Use map() Function for Comparing among Alternatives (diabetes.csv)
about 2 years ago
Best Global Universities: An Application of Using try() Funtion
about 2 years ago
Predictions for Daily Cash Withdrawals at ATMs
about 2 years ago
Happy Vietnam Women’s Day
over 2 years ago
Forecasting Time Series: Auto ARIMA, Ensemble Method and Artificial Neural Networks
over 2 years ago
Forecasting Daily Cash Demand: Long Short Term Memory vs ARIMA Aprroach
over 2 years ago
Environment and Development
over 2 years ago
Forecasting Daily Cash Demand: A Short Comparision between Automatic Machine Learning and ARIMA Aprroach (Case 1)
over 2 years ago
One-step Ahead Prediction for Cash Withdrawals: Comparing Three Approaches to Forecasting
over 2 years ago
Cointegrated Time Series and Augmented Dickey Fuller Test
over 2 years ago
Holt-Winters’ Seasonal Methods for Forecasting Time Series
over 2 years ago
Using R Markdown for Reporting: Template 2
over 2 years ago
Using R Markdown for Reporting: Template 1
over 2 years ago
Colour Gradient and Theme (ggplot2)
over 2 years ago
geom_ribbon()
over 2 years ago
Data Visualization (GSO, Part 4)
over 2 years ago
Data Visualization (GSO, Part 3)
over 2 years ago
Data Visualization (GSO, Part 2)
over 2 years ago
Data Visualization (GSO, Part 1)
over 2 years ago
GDP Sector Composition
over 2 years ago
Nice Bar Graph from Data Visualisation with R: 100 Examples
over 2 years ago
Use Favorite Fonts in R
over 2 years ago
For Loop vs sapply() and map() function
over 2 years ago
Estimation of Regionally Disaggregated Indicators Using Small Area Estimation Method
over 2 years ago
Using Colours (viridis package)
over 2 years ago
Parameter Tuning (ntree + mtry) for Random Forest when Using caret Package
almost 3 years ago
Feture Selection / Engineering for Machine Learning Models
almost 3 years ago
A Function for Calculating Distance based on Haversine Formula
almost 3 years ago
Daily Income of Sex Workers in Hanoi and Saigon
almost 3 years ago
Location of Real Estate Projects in Hanoi
almost 3 years ago
NGO Jobs (30_03)
almost 3 years ago
Florence Nightingale’s Data On Deaths From Various Causes In The Crimean War
almost 3 years ago
A Big Project for Data Science in Banking Course (Part 2)
almost 3 years ago
Approach in Machine Learning and caret Package
almost 3 years ago
Steps for Implementing a Machine Learning Project
almost 3 years ago
A Big Project for Data Science in Banking Course (Part 1)
almost 3 years ago
R Course: Data Analytics in Banking for Bankers
almost 3 years ago
Parallel Computing for Machine Learning Algorithms
almost 3 years ago
Professors 2017
almost 3 years ago
Data Analysis Course at USTH (Section: Statistics, Part 3)
about 3 years ago
Using R for Biostatistics (USTH Course, Part 2)
about 3 years ago
VHLSS 2016 Project: Life Quality
about 3 years ago
VHLSS 2016 Project (Data Provided by NA Brother)
about 3 years ago
Loại bỏ Outliers theo Cook’s Distance hoặc nằm ngoài 2 lần độ lệch chuẩn so với mean của phần dư
about 3 years ago
Regression Line with Error Distances
about 3 years ago
Composition of world's Export in 2016
about 3 years ago
Tối đa hóa danh mục đầu tư theo lí thuyết mean-variance của Harry Markowitz áp dụng cho thị trường chứng khoán Việt Nam
about 3 years ago
Predict and Analyze Customer Churn using Survival Analysis (R Project, Week 1)
about 3 years ago
GFD Project: Geospatial Data for Khanh Hoa Province
about 3 years ago
Principal Component Analysis (Principal Component Methods in R)
over 3 years ago
Chapter 4: K-Means Clustering (Cluster Analysis in R)
over 3 years ago
Information Value and Weight of Evidence (WoE)
over 3 years ago
A Function for calculating Distance to Default based on contingent claim framework proposed by Merton (1974)
over 3 years ago
(Econometric Course at VCREME) Chapter 2: The Simple Regression Model
over 3 years ago
Machine Learning: Parallel computing in R
over 3 years ago
Adjust theme for ggplot2 (Part 1)
over 3 years ago
Style your Bar charts like the Business Insider
over 3 years ago
The Code Book: The Science of Secrecy from Ancient Egypt to Quantum Cryptography
over 3 years ago
Citation Analysis 2
over 3 years ago
Machine Learning: Ridge Regression from An Introduction to Statistical Learning, Chapter 6
over 3 years ago
Text Mining: The number of English words used for Basic Econometrics by Gujarati
over 3 years ago
Marketing Research with SPSS (Chapter 5, Part 1)
over 3 years ago
Machine Learning (Section 1): Linear Regression and Its Cousins - Ridge Regression
over 3 years ago
Cuốn Analysis of Financial Time Series và giáo trình Kinh Tê Lượng NEU
over 3 years ago
The most Popular Econometricians
over 3 years ago
Choropleth Maps (Part 1)
over 3 years ago
Churn Rate for X Company
over 3 years ago
Apply family of functions
over 3 years ago
How to vectorize a for loop in R?
over 3 years ago
Imputing Missing Data
over 3 years ago
Lập trình hàm
over 3 years ago
John Tukey and Boxplot
over 3 years ago
Getting Data in zipped Forms
over 3 years ago
NPV and IRR
over 3 years ago
Số từ sử dụng để viết Principles of Economics
over 3 years ago