OriginalData:
1. OSSCooperation: DeveloperID, Data Time,FileID,ProjectID,Added lines of code,Deleted lines of code
2. OSSEmail: SenderID,ReceiverID,Data Time, ProjectID

We use algorithms to preprocess the data (please read our paper), and then focus on 14 proejcts (in original data there are totally 31 projects)

IDs:
PJID: ProjectID, after preprocessing the data
ID*: DeveloperID in the project *, after preprocessing the data
mapping: you can find the project names there (each ProjectID corresponds to a Project Name)

Project*: (* is the ProjectID)
UserID: DeveloperID in this project
*_ActiveTime (* is the UserID): work or talk (1 is work, 2 is talk), The number of second from 1999.11.01 00:00:00
*_WT (* is the UserID): work-talk sequence 