[FLINK-13239] Add unary loss functions

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Won't Do
• Component/s: Library / Machine Learning
• Labels: auto-unassigned pull-request-available
• Assignee: Unassigned
• Reporter: Xu Yang
• Created: 12/Jul/19 06:23
• Updated: 16/Oct/22 08:23
• Resolved: 16/Oct/22 08:23

Description

Add unary loss function's interface and 9 common used functions:

1. ExponentialLossFunc
2. HingeLossFunc
3. LogisticLossFunc
4. LogLossFunc
5. PerceptronLossFunc
6. ZeroOneLossFunc
7. SquareLossFunc
8. SvrLossFunc
9. HuberLossFunc

More information about loss function, please see：

• https://en.wikipedia.org/wiki/Loss_function
• https://en.wikipedia.org/wiki/Loss_functions_for_classification

Issue Links

• links to: GitHub Pull Request #9102