公开(公告)号：US08745082B2

公开(公告)日：2014-06-03

申请号：US11771286

申请日：2007-06-29

Applicant: Gao Cong ,  Wenfei Fan ,  Anastasios Kementsietsidis

Inventor： Gao Cong ,  Wenfei Fan ,  Anastasios Kementsietsidis

IPC: G06F17/30

CPC classification number: G06F17/2247 ,  G06F17/2229 ,  G06F17/30938

Abstract: Methods and apparatus are provided for evaluating XPath filters on fragmented and distributed XML documents. According to one aspect of the invention, a method is disclosed for evaluating a query over a tree having a plurality of fragments distributed over a plurality of sites. The method comprises the steps of identifying the plurality of sites storing at least one of the plurality of fragments of the tree; providing the query to the plurality of identified sites, wherein each of the identified sites partially evaluates the query against one of more fragments of the tree stored by the respective site; obtaining partial results from the plurality of identified sites; and composing the partial results to compute a result to the query. The query may be, for example, a boolean XPath query. The method can be performed, for example, by a coordinating site that stores a root fragment of the tree.

Abstract translation: 提供了方法和设备，用于评估分段和分布式XML文档上的XPath过滤器。 根据本发明的一个方面，公开了一种用于评估具有分布在多个站点上的多个片段的树上的查询的方法。 该方法包括以下步骤：识别存储该树的多个片段中的至少一个的多个站点; 将所述查询提供给所述多个识别的站点，其中所述所识别的站点中的每一个部分地根据相应站点存储的所述树的多个片段中的一个部分地评估所述查询; 从多个识别的站点获得部分结果; 并组合部分结果以计算查询的结果。 该查询可以是例如布尔的XPath查询。 该方法可以例如由存储树的根片段的协调站点来执行。

公开(公告)号：US20100076978A1

公开(公告)日：2010-03-25

申请号：US12207231

申请日：2008-09-09

Applicant: Gao Cong ,  Chin-Yew Lin ,  Shilin Ding

Inventor： Gao Cong ,  Chin-Yew Lin ,  Shilin Ding

IPC: G06F7/00 ,  G06F17/30

CPC classification number: G06F17/279 ,  G06F16/34

Abstract: In this paper, we propose a new approach to extracting question-context-answer triples from online discussion forums. More specifically, we propose a general framework based on Conditional Random Fields (CRFs) for context and answer detection, and also extend the basic framework to utilize contexts for answer detection and to better accommodate the features of forums.

Abstract translation: 在本文中，我们提出了一种从在线论坛中提取问题语境回答三元组的新方法。 更具体地说，我们提出了一种基于条件随机场（CRF）的上下文和答案检测的一般框架，并且还扩展了基础框架，以利用上下文进行答案检测，并更好地适应论坛的特征。

公开(公告)号：US20100063797A1

公开(公告)日：2010-03-11

申请号：US12207199

申请日：2008-09-09

Applicant: Gao Cong ,  Chin-Yew Lin

Inventor： Gao Cong ,  Chin-Yew Lin

IPC: G06F17/27

CPC classification number: G06F16/367

Abstract: The present invention provides a new approach to extracting question-answer pairs from online forums. The system develops a classification-based technique to discover questions in forums using sequential patterns automatically extracted from both questions and non-question sentences in forums as features. Once the questions are discovered, the system discovers the answers. The invention includes a graph-based method is that it is complementary with supervised methods for knowledge extraction, and techniques for question answering.

Abstract translation: 本发明提供了一种从在线论坛中提取问答答对的新方法。 该系统开发了一种基于分类的技术，使用从论坛中的问题和非问题句子自动提取的顺序模式作为功能，在论坛中发现问题。 一旦发现问题，系统会发现答案。 本发明包括基于图表的方法是与知识提取的监督方法以及问答技术的补充。

公开(公告)号：US20090006329A1

公开(公告)日：2009-01-01

申请号：US11771286

申请日：2007-06-29

Applicant: Gao Cong ,  Wenfei Fan ,  Anastasios Kementsietsidis

Inventor： Gao Cong ,  Wenfei Fan ,  Anastasios Kementsietsidis

IPC: G06F7/10

CPC classification number: G06F17/2247 ,  G06F17/2229 ,  G06F17/30938

Abstract: Methods and apparatus are provided for evaluating XPath filters on fragmented and distributed XML documents. According to one aspect of the invention, a method is disclosed for evaluating a query over a tree having a plurality of fragments distributed over a plurality of sites. The method comprises the steps of identifying the plurality of sites storing at least one of the plurality of fragments of the tree;providing the query to the plurality of identified sites, wherein each of the identified sites partially evaluates the query against one of more fragments of the tree stored by the respective site; obtaining partial results from the plurality of identified sites; and composing the partial results to compute a result to the query. The query may be, for example, a boolean XPath query The method can be performed, for example, by a coordinating site that stores a root fragment of the tree.

Abstract translation: 提供了方法和设备，用于评估分段和分布式XML文档上的XPath过滤器。 根据本发明的一个方面，公开了一种用于评估具有分布在多个站点上的多个片段的树上的查询的方法。 该方法包括以下步骤：识别存储树的多个片段中的至少一个的多个站点;将查询提供给多个识别的站点，其中每个所识别的站点部分地根据 由相应站点存储的树; 从多个识别的站点获得部分结果; 并组合部分结果以计算查询的结果。 该查询可以是例如布尔的XPath查询。该方法可以例如由存储树的根片段的协调站点来执行。