The Toronto-Dominion Bank

Zhaoyue Cheng

Maksims Volkovs

Juan Felipe Perez Vallejo

Saba Zuberi

Jianing Sun

A recommendation system generates recommendations for user-item pairs based on embeddings in hyperbolic space. Each user and item may be associated with a local hyperbolic embedding representing the user or item in hyperbolic space. The hyperbolic embedding may be modified by neighborhood information. Because the hyperbolic space may have no closed form for combining neighbor information, the local embedding may be converted to a tangent space for neighborhood aggregation information and converted back to hyperbolic space for a neighborhood-aware embedding to be used in the recommendation score.

Growing community of inventors

TORONTO, Canada

Zhaoyue Cheng