TY - JOUR AU - Wang, Yongqing AU - Shen, Huawei AU - Liu, Shenghua AU - Cheng, Xueqi PY - 2015/02/10 Y2 - 2024/03/28 TI - Learning User-Specific Latent Influence and Susceptibility from Information Cascades JF - Proceedings of the AAAI Conference on Artificial Intelligence JA - AAAI VL - 29 IS - 1 SE - AAAI Technical Track: Applications DO - 10.1609/aaai.v29i1.9213 UR - https://ojs.aaai.org/index.php/AAAI/article/view/9213 SP - AB - <p> Predicting cascade dynamics has important implications for understanding information propagation and launching viral marketing. Previous works mainly adopt a pair-wise manner, modeling the propagation probability between pairs of users using <em>n</em><sup>2</sup> independent parameters for <em>n</em> users. Consequently, these models suffer from severe overfitting problem, especially for pairs of users without direct interactions, limiting their prediction accuracy. Here we propose to model the cascade dynamics by learning two low-dimensional user-specific vectors from observed cascades, capturing their influence and susceptibility respectively. This model requires much less parameters and thus could combat overfitting problem. Moreover, this model could naturally model context-dependent factors like cumulative effect in information propagation. Extensive experiments on synthetic dataset and a large-scale microblogging dataset demonstrate that this model outperforms the existing pair-wise models at predicting cascade dynamics, cascade size, and "who will be retweeted." </p> ER -