A personalized recommendation framework with user trajectory analysis applied in Location-Based Social Network (LBSN)

Author(s):  
Lye Guang Xing ◽  
Ileladewa Adeoye Abiodun ◽  
Cheng Wai Khuen ◽  
Tan Teik Boon
PLoS ONE ◽  
2021 ◽  
Vol 16 (8) ◽  
pp. e0255982
Author(s):  
Amr Elsisy ◽  
Boleslaw K. Szymanski ◽  
Jasmine A. Plum ◽  
Miao Qi ◽  
Alex Pentland

Milgram empirically showed that people knowing only connections to their friends could locate any person in the U.S. in a few steps. Later research showed that social network topology enables a node aware of its full routing to find an arbitrary target in even fewer steps. Yet, the success of people in forwarding efficiently knowing only personal connections is still not fully explained. To study this problem, we emulate it on a real location-based social network, Gowalla. It provides explicit information about friends and temporal locations of each user useful for studies of human mobility. Here, we use it to conduct a massive computational experiment to establish new necessary and sufficient conditions for achieving social search efficiency. The results demonstrate that only the distribution of friendship edges and the partial knowledge of friends of friends are essential and sufficient for the efficiency of social search. Surprisingly, the efficiency of the search using the original distribution of friendship edges is not dependent on how the nodes are distributed into space. Moreover, the effect of using a limited knowledge that each node possesses about friends of its friends is strongly nonlinear. We show that gains of such use grow statistically significantly only when this knowledge is limited to a small fraction of friends of friends.


2020 ◽  
Vol 34 (10) ◽  
pp. 13971-13972
Author(s):  
Yang Qi ◽  
Farseev Aleksandr ◽  
Filchenkov Andrey

Nowadays, social networks play a crucial role in human everyday life and no longer purely associated with spare time spending. In fact, instant communication with friends and colleagues has become an essential component of our daily interaction giving a raise of multiple new social network types emergence. By participating in such networks, individuals generate a multitude of data points that describe their activities from different perspectives and, for example, can be further used for applications such as personalized recommendation or user profiling. However, the impact of the different social media networks on machine learning model performance has not been studied comprehensively yet. Particularly, the literature on modeling multi-modal data from multiple social networks is relatively sparse, which had inspired us to take a deeper dive into the topic in this preliminary study. Specifically, in this work, we will study the performance of different machine learning models when being learned on multi-modal data from different social networks. Our initial experimental results reveal that social network choice impacts the performance and the proper selection of data source is crucial.


2018 ◽  
Vol 51 (1) ◽  
pp. 1-28 ◽  
Author(s):  
Zhijun Ding ◽  
Xiaolun Li ◽  
Changjun Jiang ◽  
Mengchu Zhou

2014 ◽  
Vol 75 (15) ◽  
pp. 8895-8919 ◽  
Author(s):  
Lei Jin ◽  
Ke Zhang ◽  
Jianfeng Lu ◽  
Yu-Ru Lin

2014 ◽  
Vol 75 (20) ◽  
pp. 12521-12534 ◽  
Author(s):  
Weizhi Nie ◽  
Anan Liu ◽  
Xiaorong Zhu ◽  
Yuting Su

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