公开(公告)号：US10783156B1

公开(公告)日：2020-09-22

申请号：US15902659

申请日：2018-02-22

Applicant: Google LLC

Inventor： Steven D. Baker ,  Srinivasan Venkatachary ,  Robert Andrew Brennan ,  Per Bjornsson ,  Yi Liu ,  Hadar Shemtov ,  Massimiliano Ciaramita ,  Ioannis Tsochantaridis

IPC: G06F16/00 ,  G06F16/2457 ,  G06F16/2452 ,  G06F16/24

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for scoring candidate answer passages. In one aspect, a method includes receiving a query determined to be a question query that seeks an answer response and data identifying resources determined to be responsive to the query; for a subset of the resources: receiving candidate answer passages; determining, for each candidate answer passage, a query term match score that is a measure of similarity of the query terms to the candidate answer passage; determining, for each candidate answer passage, an answer term match score that is a measure of similarity of answer terms to the candidate answer passage; determining, for each candidate answer passage, a query dependent score based on the query term match score and the answer term match score; and generating an answer score that is a based on the query dependent score.

公开(公告)号：US10592540B2

公开(公告)日：2020-03-17

申请号：US15195364

申请日：2016-06-28

Applicant: Google LLC

Inventor： Yi Liu ,  Preyas Popat ,  Nitin Gupta ,  Afroz Mohiuddin

IPC: G06F16/00 ,  G06F16/33 ,  G06F16/35 ,  G06F16/332

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for generating answers to answer-seeking queries. One of the methods includes receiving a query having multiple terms. The query is classified as an answer-seeking query of a particular question type, and one or more answer types associated with the particular question type are obtained. Search results satisfying the query are obtained, and a respective score is computed for each of one or more passages of text occurring in each document identified by the search results, wherein the score for each passage of text is based on how many of the one or more answer types match the passage of text. A presentation that includes information from one or more of the passages of text selected based on the respective score is provided in response to the query.

公开(公告)号：US10180964B1

公开(公告)日：2019-01-15

申请号：US14824654

申请日：2015-08-12

Applicant: Google LLC

Inventor： Steven D. Baker ,  Srinivasan Venkatachary ,  Robert Andrew Brennan ,  Per Bjornsson ,  Yi Liu ,  Nitin Gupta ,  Diego Federici ,  Lingkun Chu

IPC: G06F7/00 ,  G06F17/30

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for generating candidate answer passages. In one aspect, a method includes receiving a query determined to be a question query data identifying resources determined to be responsive to the query; for each resource in a top-ranked subset of the resources: identifying a plurality of passage units in the resource; applying a set of passage unit selection criterion to the passage units, each passage unit selection criterion specifying a condition for inclusion of a passage unit in a candidate answer passage, wherein a first subset of passage unit selection criteria applies to structured content and a second subset of passage unit selection criteria applies to unstructured content; and generating, from passage units that satisfy the set of passage unit selection criterion, a set of candidate answer passages.