Feature Structure Goals in Spark

Classification & Regression
End Goal:

• Column of type Double to represent Label
• Column of type Vector (Sparse or Dense)

Recommendations
End Goal:

• Column of Users
• Column of Items
• Column of Ratings

Unsupervised Learning
End Goal:

• Column of Type Vector (Sparse or Dense)

Graph Analytics
End Goal:

• DataFrame of Vertices
• DataFrame of Edges