公开(公告)号：US11030394B1

公开(公告)日：2021-06-08

申请号：US15586778

申请日：2017-05-04

Applicant: Amazon Technologies, Inc.

Inventor： Zornitsa Petrova Kozareva ,  Sheng Zha ,  Hyokun Yun

IPC: G06N3/04 ,  G10L15/08 ,  G06F40/151 ,  G06N3/08 ,  G06F40/30

Abstract: A keyphrase extraction service implements techniques for determining a set of keyphrases associated with set of words. A word is selected from the set of words and a neural model is used to determine a label for the word based on features of the word and labels corresponding to other words of the set of words. The set of keyphrases is determined from the labels associated with the set of words.

公开(公告)号：US11295083B1

公开(公告)日：2022-04-05

申请号：US16142832

申请日：2018-09-26

Applicant: Amazon Technologies, Inc.

Inventor： Hyokun Yun ,  Yaser Al-Onaizan

IPC: G06F40/295 ,  G06N3/04 ,  G06N3/08

Abstract: Techniques for named-entity recognition are described. An exemplary implementation of a method includes extracting character features for each word of the document using a first encoder; extracting word level representations of for each word position using a second encoder, the word level representations being a concatenation of spelling variants; classifying the word level representations according to a first decoder; and outputting the classifications as named-entity labels.