added exploration ideas for custom distance fn
added exploration ideas for custom distance fn
pair-code/what-if-tool,PAIR-code/what-if-tool,pair-code/what-if-tool,PAIR-code/what-if-tool,pair-code/what-if-tool,PAIR-code/what-if-tool,pair-code/what-if-tool,pair-code/what-if-tool,PAIR-code/what-if-tool,PAIR-code/what-if-tool