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Data Science (Text mining (natural language processing (NLP), sentiment…
Data Science
Text mining
natural language processing (NLP)
sentiment analysis
opinion mining
web scrapping
data visualization
dashboard:Tableau
R: ggplot2
Python: Matplotlib+Seaborn
data processing
collection
data cleaning
filtering
missing values
split of train and test
supervised learning
Classification
KNN
tree-method
decision tree
random forest
boosting
bagging
SVM
Naive Bayes
Logistics regression
ensemble method
AdaBoost
XgBoost
lightGBM
random forest
Regression
multiple linear regression
regularization
lasso regression
ridge regression
GBDT
unsupervised learning
Clustering
K-mean
hierarchical
PCA
Database: SQL
tools: Python(Pandas, Numpy, Scikit-learn, NLTK, etc.), R, SPSS, Excel