POI recommendation by incorporating trust-distrust relationship in LBSN
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POI recommendation by incorporating trust-distrust relationship in LBSN
Journal on CommunicationsVol. 39, Issue 7, Pages: 157-165(2018)
作者机构:
黑龙江大学计算机科学与技术学院,黑龙江 哈尔滨 150080
作者简介:
基金信息:
The National Science Foundation for Young Scholars of China(61100048);The National Natural Science Foundation of China(61370222);The National Natural Science Foundation of China(F2016034)
Jinghua ZHU, Qian MING. POI recommendation by incorporating trust-distrust relationship in LBSN[J]. Journal on Communications, 2018, 39(7): 157-165.
DOI:
Jinghua ZHU, Qian MING. POI recommendation by incorporating trust-distrust relationship in LBSN[J]. Journal on Communications, 2018, 39(7): 157-165. DOI: 10.11959/j.issn.1000-436x.2018117.
POI recommendation by incorporating trust-distrust relationship in LBSN
location-based social network)重要的个性化服务,广泛用于热门景点推荐和旅游线路规划等。传统的基于协同过滤的推荐算法根据用户相似性和位置相似性进行推荐,未考虑推荐用户与目标用户间的信任关系,而信任关系有助于提高推荐系统的准确性、顽健性和用户满意度。首先分析了信任与不信任关系的传播特征,然后给出了信任度的表示和计算方法,最后提出了融合用户相似性、地理位置相似性和信任关系的混合推荐模型。实验结果表明,与传统协同过滤推荐方法相比,融合信任关系的混合推荐方法显著提高了推荐结果的准确性和用户满意度。
Abstract
POI (point of interest) recommendation is an important personalized service in the LBSN (location-based social network) which has wide applications such as popular sights recommendation and travel routes planning.Most existing collaborative filter algorithms make recommendation according to user similarity and location similarity
they don’t consider the trust relationship between users.And trust relationship is helpful to improve recommendation accuracy
robustness and user satisfaction.Firstly
the propagation property of trust and distrust relationship was analyzed.Then
the measurement and computation method of trust were given.Finally
a hybrid recommendation system which combined user similarity
geographical location similarity and trust relationship was proposed.The experiments results show that the hybrid recommendation is obviously superior to the traditional collaborative filtering in terms of results accuracy and user satisfaction.
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references
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