公开(公告)号：US11120341B1

公开(公告)日：2021-09-14

申请号：US14974634

申请日：2015-12-18

Applicant: Amazon Technologies, Inc.

Inventor： David Spike Palfrey ,  Sina Samangooei ,  Mihai Valentin Tablan ,  Maxime Peyrard

IPC: G06N5/02 ,  G06N5/04

Abstract: Techniques are described for determining the value of individual facts in a knowledge base, and various applications of such fact values. In one example, the knowledge base is part of a question answering system. A ranking of knowledge base facts based on the number of times each of the knowledge base facts is used in answering user questions (e.g., as determined from question answering logs) is used to derive a fact value function that may then be used to determine the value of other facts included in or subsequently added to the knowledge base.