40 plus Techniques Used by Data Scientists

Linear Regression
Logistic Regression
Jackknife Regression
Density Estimation
Confidence Interval
Test of Hypotheses
Pattern Recognition
Clustering - (aka Unsupervised Learning)
Supervised Learning
Time Series
Decision Trees
Random Numbers
Monte-Carlo Simulation
Bayesian Statistics
Naive Bayes
Principal Component Analysis - (PCA)
Ensembles
Neural Networks
Support Vector Machine - (SVM)
Nearest Neighbors - (k-NN)
Feature Selection - (aka Variable Reduction)
Indexation / Cataloguing
(Geo-) Spatial Modeling
Recommendation Engine
Search Engine
Attribution Modeling
Collaborative Filtering
Rule System
Linkage Analysis
Association Rules
Scoring Engine
Segmentation
Predictive Modeling
Graphs
Deep Learning
Game Theory
Imputation
Survival Analysis
Arbitrage
Lift Modeling
Yield Optimization
Cross-Validation
Model Fitting
Relevancy Algorithm
Experimental Design