Yao Yao

data analysis machine learning predictive analysis data cleaning api python hidden markov model audio separation comparison: clustering repeating estimating the initial mean number of views for vi sas big data sql+mysql java programming databases r programming language database systems block cipher digital payments consortium cyber attack disintermediation internet of things (iot) data structures cyber security encryption verification and validation transactional analysis data mining distributed computing data security cryptography quorum bitcoin cloud computing graphx dataframes scala java r sql mapreduce databricks spark data science msds smu alumni talks oct 2019 +q&a lessons after working as a data scientist for 1 ye interview offer job search smu data science msds recommendations yelp's review filtering algorithm paper yelp's review filtering algorithm poster yelp's review filtering algorithm powerpoint scatterplot analysis removal of outliers exploration correlation of continuous variables and log error categorical and continuous feature importance adding new data features train and adjust parameters for kmeans spectral clustering interactive heatmap deployment continuous variable correlation heatmap attribute visualization and agglomerative clustering while evaluating metr two dimensional linear discriminant analysis feature ranking with recursive feature elimination feature importance advantages and model comparisons optimization of naive bayes (gaussian) optimization of random forest optimization of k nearest neighbors (kd tree) training and testing splits classification and regression prediction models density graph interpretation of support vectors logistic regression feature importance accuracy of results and efficiency optimizing support vector machine classifier optimizing logistic regression model performance stochastic gradient descent classifier employee satisfaction stepwise regression cross validation employee turnover logistic regression linear discriminant analysis quantitative descriptive analysis principal component analysis classification data reduction pca lumosity explanatory variables multiple linear regression sales prediction blockchains bitcoin mining public/private keys hyperledger ethereum blockchain distribution wins chess