# Data Science > [!summary] What? Data Science is about knowledge discovery from big data. - Four V's of big data: Volume, Velocity, Variety, Veracity ## Modules - [[data-management|Managing Data]] - [[classification|Classification]] - [[ml|Machine Learning]] - [[knn|K Nearest Neighbors (KNN)]] - [[decision-tree|Decision Tree]] - [[bayes#Naive Bayes|Naïve Bayes]] - [[svm|Support Vector Machine (SVM)]] - [[nn|Neural Networks]] - [[model-evaluation|Model Evaluation]] - [[embedding|Vector Embeddings]] - [[clustering|Clustering]] - [[k-means|K-Means]] - [[dbscan|DBSCAN]] - [[pca|PCA]] - [[t-sne|t-SNE]] - [[inference|Statistical Inference]] - [[linear-regression|Linear Regression]] - [[logistic-regression|Logistic Regression]] - [[causality|Causality]]