Meta Platforms, Inc.

Theodore Frank Levin

Anuj Kumar

Armen Aghajanyan

Kirk LaBuda

Crystal Annette Naomi Su Hua Nakatsu

Brian Moran

Daniel Difranco

Sonal Gupta

Jonathan David Christensen

In one embodiment, a method includes receiving a user input comprising a natural-language utterance by an assistant xbot from a client system associated with a user, determining a semantic representation of the user input based on a structural ontology defining a labeling syntax for parsing the natural-language utterance to semantic units comprising actions, objects, and attributes, wherein the semantic representation embeds at least one object within at least one action and declares at least one attribute of the embedded object to be acted upon, sending a request based on the semantic representation to an agent for executing a task corresponding to the user input, receiving results of the executed task mapped to a structure determined by the structural ontology from the agent, and sending from the assistant xbot to the client system instructions for presenting a response based on the results of the executed task.

Semantic representations using structural ontology for assistant systems

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Seattle, WA, United States of America

Theodore Frank Levin