Unsupervised Learning of Parsimonious General-Purpose Embeddings for User and Location Modeling

Yang, Jing and Eickhoff, Carsten (2018) Unsupervised Learning of Parsimonious General-Purpose Embeddings for User and Location Modeling. ACM Transactions on Information Systems (TOIS).

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Abstract

Many social network applications depend on robust representations of spatio-temporal data. In this work, we present an embedding model based on feed-forward neural networks which transforms social media checkins into dense feature vectors encoding geographic, temporal, and functional aspects for modeling places, neighborhoods, and users. We employ the embedding model in a variety of applications including location recommendation, urban functional zone study, and crime prediction. For location recommendation, we propose a Spatio-Temporal Embedding Similarity algorithm (STES) based on the embedding model. In a range of experiments on real life data collected from Foursquare, we demonstrate our model’s effectiveness at characterizing places and people and its applicability in aforementioned problem domains. Finally, we select eightmajor cities around the globe and verify the robustness and generality of our model by porting pre-trained models from one city to another, thereby alleviating the need for costly local training

Item Type: Article
Subjects: G Geography. Anthropology. Recreation > G Geography (General)
L Education > L Education (General)
Divisions: Faculty of Industrial Engineering and Informatics > Information System
Depositing User: staff repository 2
Date Deposited: 30 Jul 2018 16:57
Last Modified: 30 Jul 2018 16:57
URI: http://repository.ittelkom-pwt.ac.id/id/eprint/1211

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