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arXiv · 1706.00923

Simultaneous Inference of User Representations and Trust

Shashank Gupta·Pulkit Parikh·Manish Gupta·Vasudeva Varma
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Abstract

Inferring trust relations between social media users is critical for a number of applications wherein users seek credible information. The fact that available trust relations are scarce and skewed makes trust prediction a challenging task. To the best of our knowledge, this is the first work on exploring representation learning for trust prediction. We propose an approach that uses only a small amount of binary user-user trust relations to simultaneously learn user embeddings and a model to predict trust between user pairs. We empirically demonstrate that for trust prediction, our approach outperforms classifier-based approaches which use state-of-the-art representation learning methods like DeepWalk and LINE as features. We also conduct experiments which use embeddings pre-trained with DeepWalk and LINE each as an input to our model, resulting in further performance improvement. Experiments with a dataset of $\sim$356K user pairs show that the proposed method can obtain an high F-score of 92.65%.

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Shashank Gupta, Pulkit Parikh, Manish Gupta, Vasudeva Varma. 2017-06-03. Simultaneous Inference of User Representations and Trust. https://arxiv.org/abs/1706.00923

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