| 一种基于用户情境的QoS预测方法 |
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| 引用本文： | 李蓉,杨莉萍,杨艳.一种基于用户情境的QoS预测方法[J].计算机时代,2020(5):54-58. |
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| 作者姓名： | 李蓉 杨莉萍 杨艳 |
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| 作者单位： | 华中师范大学计算机学院,湖北 武汉 430079;华中农业大学信息学院 |
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| 摘 要： | 完整的QoS信息有利于更准确的服务推荐,但是现实中往往很难得到。文章提出了一种基于用户情境的QoS预测方法,对于老用户,根据他们原来的QoS选择,考虑QoS类型区别和时间衰减情况,预测新的QoS取值;对于新用户,按照用户分类信息,根据同类用户的服务选择情况,预测他们的QoS取值。实验证明,该方法有助于提高服务推荐的性能。
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| 关 键 词： | QOS WEB服务 服务推荐 用户情境 |
A QoS prediction method based on user context |
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| Li Rong,Yang Liping,Yang Yan.A QoS prediction method based on user context[J].Computer Era,2020(5):54-58. |
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| Authors: | Li Rong Yang Liping Yang Yan |
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| Affiliation: | (Computer Science Department,Central China Normal University,Wuhan,Hubei 430079,China;School of information,Huazhong Agricultural University) |
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| Abstract: | Complete QoS information is conducive to more accurate service recommendation, but it is often difficult to get in reality. In this paper, a QoS prediction method based on user context is proposed. For the old user, new QoS value is predicted according to their original QoS selection, taking the difference of QoS types and time attenuation into the consideration;for new users, the QoS is predicted according to the user classification information and the service selection of similar users. Experiments show that this method can improve the performance of service recommendation. |
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| Keywords: | QoS Web service service recommendation user context |
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