Rupak Roy

machine learning bobrupakroy data science data analytics rupakroy big data bob data mining r studio r programming artificial intelligence database analytics rupak hadoop apache hadoop database management systems bob rupak roy sentiment analysis data roy nlp text mining regression analysis apache pig export import statistics classification apache hive apache scoop pig visual excel probability distribution pca random forest hierarchical clustering logistic regression linear regression rupak bob roy rupak roy hbase relational operators apache mapreduce bigdata visualization boxplot data visualization sql java null hypothesis hypothesis testing support vector machine principal component analysis naive bayes ensemble methods decision tree algorithms algorithms decision trees unsupervised learning clustering missing values market analysis simple moving averages exponential moving averages time series rupak kmeans association network analysis topic modeling svm natural language apache hbase mysql rdbms apache flume flume yarn hdfs geo spatial grid facet plots plot replacement pattern matching transpose transformation join full outer join merge merging tables dates pipelines open data api web html5 solutions troubleshooting csv r data types data structures chi-square multiple sample test anova two tailed tests one tailed tests 2 sample t-test t-test paired difference t-test stages t-distribution normal distribution poisson distribution binomial median skewness business model model building dimensionality reduction lstm cnn classifier deep learning neural nets types time series sequential learning marketing and advertising singularity bobrupak roy data cleaning data preparation marketing