All issues Volume 74 (2019) Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles, 74 (2019) 49 Full HTMLVariables used in the ILP formulation of the acyclic orientation problem.
| Variable | Type | Description |
|---|---|---|
| S(o i) | Integer | Start time of operation o i |
| E(o i) | Integer | End time of operation o i |
| b ij | Binary | Orientation decision variable associated with edge 
|
| P | Integer | Length of the graph critical path |
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.
