Facebook, Inc.

Adam Kal Lerer

Robert D Fergus

Antoine Bordes

Timothee Lacroix

Adam Joshua Fisch

Ronan Alexandre Riochet

To generate an embedding model for entities in an online system, a first set of partitions is generated. Each partition of the first set of partitions includes a subset of entities of the online system. Each partition of at least a subset of partitions of the first set of partitions is assigned to embedding workers. Each of the embedding worker determines embedding vectors for each entity in the partition assigned to the embedding worker. A second set of partitions is generated. Each partition of at least a subset of partitions of the second set of partitions are assigned to embedding workers. Each embedding worker retrieves embedding vectors for the entities in the partition assigned to embedding worker, and determines updated embedding vectors for each of the entities based on the retrieved embedding vectors and information about interaction between the entities.

Embeddings with multiple relationships

To differentiate physical and non-physical events, a discrimination system based on unsupervised machining learning is used to predict a plausibility of objects' behaviors between a starting and ending time point. The discrimination system receives a set of initial, or 'starting' content frames, each depicting a state of objects at a starting time point and an arrangement or 'behavior' of those objects at the starting time. To train the discrimination system, the first model uses the starting content frame to generate a subsequent content frame, while the second model generates a subsequent content frame without using the starting content frame. A discriminator model may thus be trained without supervision by treating the subsequent content frame generated from the first model as a possible behavior of the starting content frame, and the subsequent content frame generated from the second model as an impossible behavior of the starting content frame.

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New York, NY, United States of America

Adam Kal Lerer