Patent ID: 11893060
Assignee: NAVER CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 17:
18. A question answering system comprising:
a means for receiving a question from a computing device via a network, the question including a first plurality of words, and to encode the question into a first vector representation;
a means for encoding a document D into a second vector representation, the document including a second plurality of words;
a means for generating a third vector representation based on the first and second vector representations;
a means for generating a first reformulated vector representation for the question based on the first vector representation;
a means for generating a fourth vector representation based on the second vector representation and the first reformulated vector representation;
a means for generating a second reformulated vector representation for the question based on first reformulated vector representation;
a means for determining an answer to the question based on the second reformulated vector representation and transmitting the answer to the computing device via the network,
wherein the means for generating the third vector representation is for determining (a) first and (b) second sets of probabilities that represent (a) a probability of each word of the document being a beginning of an answer span and (b) a probability of each word of the document being an end of the answer span, respectively, the answer span being a span of words of the document that correctly answers the question; and
a means for, based on the first and second sets of probabilities, determining an attention vector of probabilities of entries of the second vector representation being part of the answer span.