They also sayah sex sponsors should reconsider the usual financial and time constraints placed on investigators conducting HIV-prevention trials. 他們還說，研究資助者應該重新考慮對從事艾滋病臨床研究的科學家的常規財務和時間約束。
The definition of time constraint was put forward considering the impact of the length of the time's compartmentalization and the self-learning function of the system was realized. 由於行為軌跡中時間段劃分跨度對推薦源數據實用價值存在影響，故提出了時間約束定義，同時完成了該演算法中自動學習功能的實現。
