Generating candidates for search using scoring/retrieval architecture

A system comprising:

• at least one hardware processor;
• and
• a non-transitory machine-readable medium embodying a set of instructions that, when executed by at least one hardware processor, cause the processor to perform operations comprising:
• for each one of a plurality of user profiles stored on a database of an online service, retrieving, by a first neural network, profile data of the one of the plurality of user profiles from the database of the online service;
• for each one of the plurality of user profiles, generating, by the first neural network, a profile vector representation based on the retrieved profile data of the one of the plurality of user profiles;
• storing the profile vector representations of the plurality of user profiles in the database of the online service;
• receiving, by a computer system having a memory and at least one hardware processor, a query from a computing device of a querying user subsequent to the storing of the profile vector representations, the query comprising query data, the query data comprising at least one of query text or facet selection data;
• generating, by a second neural network distinct from the first neural network, a query vector representation for the query based on the query data of the query in response to the receiving of the query;
• retrieving, by the computer system, the stored profile vector representations of the plurality of user profiles from the database of the online service based on the receiving of the query;
• for each one of the plurality of user profiles, generating, by a third neural network distinct from the first neural network and the second neural network, a corresponding score for a pairing of the one of the plurality of user profiles and the query based on a determined level of similarity between the profile vector representation of the one of the plurality of user profiles and the query vector representation;
• and
• causing, by the computer system, an indication of at least a portion of the plurality of user profiles to be displayed on the computing device as search results for the query based on the generated scores of the plurality of user profiles.

A non-transitory machine-readable medium embodying a set of instructions that, when executed by at least one hardware processor, cause the processor to perform operations comprising:

• for each one of a plurality of user profiles stored on a database of an online service, retrieving, by a first neural network, profile data of the one of the plurality of user profiles from the database of the online service;
• for each one of the plurality of user profiles, generating, by the first neural network, a profile vector representation based on the retrieved profile data of the one of the plurality of user profiles;
• storing the profile vector representations of the plurality of user profiles in the database of the online service;
• receiving, by a computer system having a memory and at least one hardware processor, a query from a computing device of a querying user subsequent to the storing of the profile vector representations, the query comprising query data, the query data comprising at least one of query text or facet selection data;
• generating, by a second neural network distinct from the first neural network, a query vector representation for the query based on the query data of the query in response to the receiving of the query;
• retrieving, by the computer system, the stored profile vector representations of the plurality of user profiles from the database of the online service based on the receiving of the query;
• for each one of the plurality of user profiles, generating, by a third neural network distinct from the first neural network and the second neural network, a corresponding score for a pairing of the one of the plurality of user profiles and the query based on a determined level of similarity between the profile vector representation of the one of the plurality of user profiles and the query vector representation;
• and
• causing, by the computer system, an indication of at least a portion of the plurality of user profiles to be displayed on the computing device as search results for the query based on the generated scores of the plurality of user profiles.