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Issue No. 09 - Sept. (2018 vol. 30)
ISSN: 1041-4347
pp: 1652-1671
Xin Zheng , School of Computer Science and Engineering, Nanyang Technological University, Singapore
Jialong Han , Tencent AI Lab, Shenzhen, Guangdong, China
Aixin Sun , School of Computer Science and Engineering, Nanyang Technological University, Singapore
Locations, e.g., countries, states, cities, and point-of-interests, are central to news, emergency events, and people's daily lives. Automatic identification of locations associated with or mentioned in documents has been explored for decades. As one of the most popular online social network platforms, Twitter has attracted a large number of users who send millions of tweets on daily basis. Due to the world-wide coverage of its users and real-time freshness of tweets, location prediction on Twitter has gained significant attention in recent years. Research efforts are spent on dealing with new challenges and opportunities brought by the noisy, short, and context-rich nature of tweets. In this survey, we aim at offering an overall picture of location prediction on Twitter. Specifically, we concentrate on the prediction of user home locations, tweet locations, and mentioned locations. We first define the three tasks and review the evaluation metrics. By summarizing Twitter network, tweet content, and tweet context as potential inputs, we then structurally highlight how the problems depend on these inputs. Each dependency is illustrated by a comprehensive review of the corresponding strategies adopted in state-of-the-art approaches. In addition, we also briefly review two related problems, i.e., semantic location prediction and point-of-interest recommendation. Finally, we make a conclusion of the survey and list future research directions.
Twitter, Urban areas, Noise measurement, Geology, Task analysis

X. Zheng, J. Han and A. Sun, "A Survey of Location Prediction on Twitter," in IEEE Transactions on Knowledge & Data Engineering, vol. 30, no. 9, pp. 1652-1671, 2018.
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