| 邮件系统中的兴趣漂移混合模型 |
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| 引用本文： | 布红艳,王国胤,董振兴.邮件系统中的兴趣漂移混合模型[J].计算机工程与设计,2011,32(12):4026-4029. |
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| 作者姓名： | 布红艳 王国胤 董振兴 |
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| 作者单位： | 重庆邮电大学计算机科学与技术研究所,重庆,400065 |
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| 基金项目： | 国家自然科学基金项目，重庆市杰出青年基金项目(2008BA2041).重庆邮电大学青年教师基金项目 |
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| 摘 要： | 针对如何在邮件系统中进行用户兴趣模型更新的问题,提出了一种兴趣漂移方法。根据用户长期兴趣和短期兴趣的不同特点,对短期兴趣模型采用时间窗口方法,对长期兴趣模型采用遗忘函数方法进行模型更新。实验结果表明,短期兴趣模型能很好地预测用户近期的兴趣,长期兴趣模型对较长时间段内用户兴趣的预测更稳定。采用混合模型能更好地描述用户兴趣。
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| 关 键 词： | 邮件系统 兴趣漂移 时间窗口 遗忘函数 混合模型 |
Hybrid interest drifting model of E-mail systems |
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| BU Hong-yan,WANG Guo-yin,DONG Zhen-xing.Hybrid interest drifting model of E-mail systems[J].Computer Engineering and Design,2011,32(12):4026-4029. |
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| Authors: | BU Hong-yan WANG Guo-yin DONG Zhen-xing |
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| Affiliation: | BU Hong-yan,WANG Guo-yin,DONG Zhen-xing(Institute of Computer Science and Technology,Chongqing University of Posts and Telecommunications,Chongqing 400065,China) |
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| Abstract: | Aiming at the problem of how to update users' interest models in the E-mail system,this paper provides a method of interest drifting.According to the difference between the long-term interest and the short-term interest,the time window algorithm is used in the short-term interest model,and the forgetting function algorithm is used in the long-term interest model.The experiment results demon-strate that the short-term interest model can well predict the user's recent interests.And the long-term interest mode... |
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| Keywords: | E-mail system interest drifting time window forgetting function hybrid model |
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