Huayi Li

Analyzing and Detecting Opinion Spam on a Large-scale Dataset via Temporal and Spatial Patterns

2021 · Proceedings of the International AAAI Conference on Web and Social Media

Although opinion spam (or fake review) detection has attracted significant research attention in recent years, the problem is far from solved. One key reason is that there is no large-scale ground truth labeled dataset available …

Modeling Review Spam Using Temporal Patterns and Co-bursting Behaviors

2016 · arXiv (Cornell University)

Online reviews play a crucial role in helping consumers evaluate and compare products and services. However, review hosting sites are often targeted by opinion spamming. In recent years, many such sites have put a great …

Bimodal Distribution and Co-Bursting in Review Spam Detection

2017

Online reviews play a crucial role in helping consumers evaluate and compare products and services. This critical importance of reviews also incentivizes fraudsters (or spammers) to write fake or spam reviews to secretly promote or …