Top 5 popular data science algorithms:
Association Rule Mining
Data science is nothing but extracting and actionable knowledge from data:
Data Scienctist must know data architecture , machine learning, data analytics.
Machine Learning Algorithms(sample)
PCA Decision Trees
Association Analysis Classification
FP Growth Trees
Hidden Markov Model Logistic Regression
Supervised Learning: The categories of the data is already known
Unsupervised Learning: The learning process attempts to find appropriate category for the data.