arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2009.02092cs.SI
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任意时间范围内的社交媒体流行度预测

Popularity Prediction for Social Media over Arbitrary Time Horizons

Daniel Haimovich, Dima Karamshuk, Thomas J. Leeper, Evgeniy Riabenko, Milan Vojnovic

摘要:

实时预测社交媒体内容的受欢迎程度需要在全球范围内有效运作的方法。流行度预测对于许多应用都很重要,包括检测有害病毒内容以实现及时的内容审核。预测任务是困难的,因为视图是用户兴趣、内容特征、再分享、提要排名和网络结构之间相互作用的结果。我们考虑的问题,准确地预测流行度在任何给定的预测时间,因为一个内容项的创建和任意的时间范围到未来。为了在不同的预测时间范围内实现高精度,模型必须使用静态特征(内容和用户)以及预测时间内观察到的流行度增长。我们提出了一种基于自激霍克斯点过程模型,它涉及预测的内容的流行程度在一个或多个参考视野与一个点预测的有效增长参数,反映了流行度增长的时间尺度的基础上,基于特征的方法。这导致在任意预测时间范围内进行流行度预测的高度可扩展的方法,与几个领先的基线相比,该方法在两个月内在Facebook上的公共页面内容的数据集上也实现了高度的准确性,覆盖了数十亿的内容视图和数十万个不同的内容项。该模型显示出与强基线相比具有竞争力的预测准确性,该基线由针对特定预测时间范围的单独训练的模型组成。

英文摘要:

Predicting the popularity of social media content in real time requires approaches that efficiently operate at global scale. Popularity prediction is important for many applications, including detection of harmful viral content to enable timely content moderation. The prediction task is difficult because views result from interactions between user interests, content features, resharing, feed ranking, and network structure. We consider the problem of accurately predicting popularity both at any given prediction time since a content item's creation and for arbitrary time horizons into the future. In order to achieve high accuracy for different prediction time horizons, it is essential for models to use static features (of content and user) as well as observed popularity growth up to prediction time. We propose a feature-based approach based on a self-excited Hawkes point process model, which involves prediction of the content's popularity at one or more reference horizons in tandem with a point predictor of an effective growth parameter that reflects the timescale of popularity growth. This results in a highly scalable method for popularity prediction over arbitrary prediction time horizons that also achieves a high degree of accuracy, compared to several leading baselines, on a dataset of public page content on Facebook over a two-month period, covering billions of content views and hundreds of thousands of distinct content items. The model has shown competitive prediction accuracy against a strong baseline that consists of separately trained models for specific prediction time horizons.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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