Patent ID: 11860684
Assignee: ASAPP, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. A system, comprising:
at least one server computer comprising at least one processor and at least one memory, the at least one server computer configured to:
obtain a classifier for a first named entity recognition task corresponding to a first tag set, wherein the classifier processes tokens to compute score vectors for the tokens;
obtain support tokens corresponding to a second named entity recognition task, wherein the support tokens are labelled with a tag from a second tag set, and wherein the second tag set comprises a first tag that is not in the first tag set;
obtain support token embeddings, wherein the support token embeddings were computed by processing the support tokens with the classifier for the first named entity recognition task;
obtain abstract tag transition probabilities, wherein the abstract tag transition probabilities comprise (i) a transition between a tag that does not correspond to any named entity to a tag that corresponds to any named entity, (ii) a transition between a tag that corresponds to any named entity to a tag that does not correspond to any named entity, and (iii) a transition between a tag that corresponds to any named entity to a tag that corresponds to a different named entity;
receive input tokens for processing with the second named entity recognition task;
compute input token embeddings by processing the input tokens with the classifier for the first named entity recognition task;
compute distances between the input token embeddings and the support token embeddings;
assign the first tag from the second tag set to a first input token using the distances and the abstract tag transition probabilities; and
recognize a first named entity in the input tokens, wherein the first named entity corresponds to the first tag.