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Seat inventory control methods for Chinese passenger railways 被引量:3
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作者 包云 刘军 +1 位作者 马敏书 孟令云 《Journal of Central South University》 SCIE EI CAS 2014年第4期1672-1682,共11页
Railway seat inventory control strategies play a crucial role in the growth of profit and train load factor. The railway passenger seat inventory control problem in China was addressed. Chinese passenger railway opera... Railway seat inventory control strategies play a crucial role in the growth of profit and train load factor. The railway passenger seat inventory control problem in China was addressed. Chinese passenger railway operation features and seat inventory control practice were analyzed firstly. A dynamic demand forecasting method was introduced to forecast the coming demand in a ticket booking period. By clustering, passengers' historical ticket bookings were used to forecast the demand to come in a ticket booking period with least squares support vector machine. Three seat inventory control methods: non-nested booking limits, nested booking limits and bid-price control, were modeled under a single-fare class. Different seat inventory control methods were compared with the same demand based on ticket booking data of Train T15 from Beijing West to Guangzhou. The result shows that the dynamic non-nested booking limits control method performs the best, which gives railway operators evidence to adjust the remaining capacity in a ticket booking period. 展开更多
关键词 seat inventory control Chinese passenger railway revenue management booking limits bid-price
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势阱中玻色-爱因斯坦凝聚气体的势场有效性和粒子数极限判据 被引量:11
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作者 余学才 叶玉堂 程琳 《物理学报》 SCIE EI CAS CSCD 北大核心 2006年第2期551-554,共4页
基于最小动量态上的玻色-爱因斯坦凝聚(简称BEC),给出了指数吸引势场中超冷玻色原子气体的势场有效性和势阱中所装载的原子数目极限判据.此判据给出了当所装载的原子数确定时,所需要的势场强度;或势场给定时,所装载的原子数目的极限.
关键词 玻色-爱因斯坦凝聚 临界温度 最小动量态
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