Patent ID: 11916866
Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 9:
10. A tangible, non-transitory, computer-readable media having instructions encoded thereon, such that a processor implementing the instructions, is operable to:
implement a system for unsupervised cyberbullying detection via time-informed Gaussian Mixture Model (UCD) that predicts bullying instances without labeled data, the system incorporating comment inter-arrival times of a social media session which accommodates classification of cyberbullying instances using a full commenting history,
wherein the system includes a representation learning network that learns a compact multi-modal representation of the social media session and a multi-task learning network that predicts whether or not the social media session contains bullying behaviors while modeling temporal dynamics of all social media comments, and
wherein the representation learning network models social media sessions using a hierarchical attention network (HAN) for textual features of a plurality of features and a graph auto-encoder for user and network features of the plurality of features, and the multi-modal task learning network takes the plurality of features as input to estimate a likelihood of bullying using a time-informed Gaussian Mixture Model (GMM).