公开(公告)号：US20090182734A1

公开(公告)日：2009-07-16

申请号：US12351765

申请日：2009-01-09

申请人： Ji-Rong Wen ,  Ruihua Song ,  Wei-Ying Ma

发明人： Ji-Rong Wen ,  Ruihua Song ,  Wei-Ying Ma

IPC分类号： G06F17/30

CPC分类号： G06F16/951 ,  G06F16/334 ,  Y10S707/99931 ,  Y10S707/99932 ,  Y10S707/99933 ,  Y10S707/99934 ,  Y10S707/99935

摘要： A relevance system determines the relevance of a query term to a document based on spans within the document that contain the query term. The relevance system aggregates the relevance of the query terms into an overall relevance for the document. For each query term, the relevance system calculates a span relevance for each span that contains that query term. The relevance system then aggregates the span relevances for a query term into a query term relevance for that document. The relevance system may aggregate the query term relevances into a document relevance.

摘要翻译： 相关系统基于包含查询项的文档中的跨度来确定查询项与文档的相关性。 相关系统将查询词的相关性聚合到文档的整体相关性。 对于每个查询项，相关系统计算包含该查询项的每个跨度的跨度相关性。 相关系统然后将查询项的跨度相关性聚合到该文档的查询词相关性中。 相关系统可以将查询词语相关性合并成文档相关性。

公开(公告)号：US20080046441A1

公开(公告)日：2008-02-21

申请号：US11465026

申请日：2006-08-16

申请人： Ji-Rong Wen ,  Min Wan ,  Ruihua Song ,  Wei-Ying Ma ,  Shuyi Zeng

发明人： Ji-Rong Wen ,  Min Wan ,  Ruihua Song ,  Wei-Ying Ma ,  Shuyi Zeng

IPC分类号： G06F7/00

CPC分类号： G06F17/2241 ,  G06F17/2247

摘要： A method and system for generating wrappers for hierarchically organized documents by jointly optimizing template detection and wrapper generation is provided. A wrapper generation system generates a wrapper for documents with similar templates by identifying a cluster of document trees and generating a wrapper tree for the cluster. A wrapper tree defines the wrapper for documents that match the template of the cluster. The wrapper generation system clusters document trees by generating a wrapper tree for the cluster based on an initial document tree. The wrapper generation system then repeatedly determines whether any other document tree matches or nearly matches the wrapper tree for the cluster and, if so, adds the document tree to the cluster and adjusts the wrapper tree as appropriate so that all the document trees, including the newly added one, match the wrapper tree.

摘要翻译： 提供了一种用于通过联合优化模板检测和包装器生成来生成用于分层组织的文档的包装器的方法和系统。 包装生成系统通过识别文档树的集群并为集群生成包装树，为具有相似模板的文档生成包装器。 包装树定义与集群模板匹配的文档的包装器。 包装生成系统通过基于初始文档树生成用于集群的包装树来聚类文档树。 包装生成系统然后重复地确定任何其他文档树是否匹配或几乎匹配用于集群的包装树，并且如果是，则将文档树添加到集群并适当地调整包装树，使得所有文档树，包括 新添加一个，匹配包装树。

公开(公告)号：US20130257166A1

公开(公告)日：2013-10-03

申请号：US13881577

申请日：2011-10-14

申请人： Gesong Chen ,  Xiaoxin Zhou ,  Ruihua Song

发明人： Gesong Chen ,  Xiaoxin Zhou ,  Ruihua Song

IPC分类号： H02J3/24

CPC分类号： H02J3/24

摘要： A method, apparatus and system for suppressing low frequency oscillation in a power system. The method comprises: determining a system transfer function of an interconnected power system section in which a variable frequency transformer (VFT) is located; determining a damping controller parameters according to the system transfer function; and suppressing low frequency oscillation of the power system by means of the VFT based on the damping controller parameter. The objects of the method, apparatus and system are definite: optimizing the damping controller parameter can be achieved by simply tracking and analyzing the response of the system to disturbance, without the need to understand the configuration and parameters of the system or solve complicated power system equations, which has a better effect in suppressing low frequency oscillation in the power system and is advantageous for improving the safety and stability level of the power grid.

摘要翻译： 一种用于抑制电力系统中的低频振荡的方法，装置和系统。 该方法包括：确定可变频变压器（VFT）所在的互连电力系统部分的系统传递函数; 根据系统传递函数确定阻尼控制器参数; 并通过基于阻尼控制器参数的VFT抑制电力系统的低频振荡。 方法，装置和系统的目的是确定的：通过简单地跟踪和分析系统对干扰的响应，可以实现阻尼控制器参数的优化，无需了解系统的配置和参数或解决复杂的电力系统 方程式对抑制电力系统中的低频振荡具有更好的效果，有利于提高电网的安全稳定性。

公开(公告)号：US20120054192A1

公开(公告)日：2012-03-01

申请号：US12871576

申请日：2010-08-30

申请人： Ruihua Song ,  Qi Yao ,  Junyan Chen

发明人： Ruihua Song ,  Qi Yao ,  Junyan Chen

IPC分类号： G06F17/30

CPC分类号： G06F17/30864 ,  G06F17/30887

摘要： Computer-readable media, computer systems, and computing devices facilitate enhancing a web index with uniform resource locator (URL)/non-encoding character (NEC) word pairs to facilitate relevance ranking of search results provided in response to a search query that includes NEC words. URLs are received from web pages and substrings extracted therefrom. Additional elements are received from the web page, word-broken into sequences of NEC words, and the NEC words are converted into encoding-language representations which are matched against the URL substrings to identify candidate URL/NEC pairs for utilization in relevance ranking.

摘要翻译： 计算机可读介质，计算机系统和计算设备有助于利用统一的资源定位器（URL）/非编码字符（NEC）字对来增强网络索引，以便于响应于包括NEC的搜索查询提供的搜索结果的相关性排名 话。 从从其中提取的网页和子串接收URL。 从网页接收附加元素，将其分词成NEC字的序列，并将NEC字转换成与URL子串相匹配的编码语言表示，以识别候选URL / NEC对以用于相关性排名。

公开(公告)号：US08977624B2

公开(公告)日：2015-03-10

申请号：US12871576

申请日：2010-08-30

申请人： Ruihua Song ,  Qi Yao ,  Junyan Chen

发明人： Ruihua Song ,  Qi Yao ,  Junyan Chen

IPC分类号： G06F17/30

CPC分类号： G06F17/30864 ,  G06F17/30887

摘要： Computer-readable media, computer systems, and computing devices facilitate enhancing a web index with uniform resource locator (URL)/non-encoding character (NEC) word pairs to facilitate relevance ranking of search results provided in response to a search query that includes NEC words. URLs are received from web pages and substrings extracted therefrom. Additional elements are received from the web page, word-broken into sequences of NEC words, and the NEC words are converted into encoding-language representations which are matched against the URL substrings to identify candidate URL/NEC pairs for utilization in relevance ranking.

摘要翻译： 计算机可读介质，计算机系统和计算设备有助于利用统一的资源定位器（URL）/非编码字符（NEC）字对来增强网络索引，以便于响应于包括NEC的搜索查询提供的搜索结果的相关性排名 话。 从从其中提取的网页和子串接收URL。 从网页接收附加元素，将其分词成NEC字的序列，并将NEC字转换成与URL子串相匹配的编码语言表示，以识别候选URL / NEC对以用于相关性排名。

公开(公告)号：US07962487B2

公开(公告)日：2011-06-14

申请号：US12345645

申请日：2008-12-29

申请人： Qi Liu ,  Ruihua Song ,  Jiangming Yang

发明人： Qi Liu ,  Ruihua Song ,  Jiangming Yang

IPC分类号： G06F17/30

CPC分类号： G06F17/30864

摘要： Techniques described herein allow for suggesting creation of tools for improving search engine performance. Specifically, these tools focus on producing more relevant search engine results via a URL-based query clustering method. These tools first extract tokens from Uniform Resource Locators associated to search queries. With these tokens, these tools form query clusters of common tokens. The resulting clusters can be used to help understand the similarities in user search queries via URL-based cluster queries to produce more relevant search results.

摘要翻译： 本文描述的技术允许建议创建用于改善搜索引擎性能的工具。 具体来说，这些工具专注于通过基于URL的查询群集方法生成更相关的搜索引擎结果。 这些工具首先从与搜索查询相关联的统一资源定位器中提取令牌。 使用这些令牌，这些工具形成了常见令牌的查询集群。 所得到的集群可以用于通过基于URL的集群查询来帮助理解用户搜索查询的相似性，以产生更相关的搜索结果。

公开(公告)号：US20060277173A1

公开(公告)日：2006-12-07

申请号：US11192687

申请日：2005-07-29

申请人： Hang Li ,  Ruihua Song ,  Yunbo Cao ,  Dmitriy Meyerzon

发明人： Hang Li ,  Ruihua Song ,  Yunbo Cao ,  Dmitriy Meyerzon

IPC分类号： G06F17/30 ,  G06F17/00 ,  G06F17/27

CPC分类号： G06F17/211 ,  Y10S707/99935

摘要： An information extraction model is trained on format features identified within labeled training documents. Information from a document is extracted by assigning labels to units based on format features of the units within the document. A begin label and end label are identified and the information is extracted between the begin label and the end label. The extracted information can be used in various document processing tasks such as ranking.

摘要翻译： 对标示的培训文件中标识的格式特征进行信息提取模型的培训。 通过根据文档中单位的格式特征为单位分配标签来提取文档中的信息。 识别开始标签和结束标签，并在开始标签和结束标签之间提取信息。 提取的信息可以用于各种文档处理任务，如排名。

公开(公告)号：US09450411B2

公开(公告)日：2016-09-20

申请号：US13881577

申请日：2011-10-14

申请人： Gesong Chen ,  Xiaoxin Zhou ,  Ruihua Song

发明人： Gesong Chen ,  Xiaoxin Zhou ,  Ruihua Song

IPC分类号： H02J3/24

CPC分类号： H02J3/24

摘要： A method, apparatus and system for suppressing low frequency oscillation in a power system. The method includes determining a system transfer function of an interconnected power system section in which a variable frequency transformer (VFT) is located; determining a damping controller parameters according to the system transfer function; and suppressing low frequency oscillation of the power system by means of the VFT based on the damping controller parameter. The objects of the method, apparatus and system are definite: optimizing the damping controller parameter can be achieved by simply tracking and analyzing the response of the system to disturbance, without the need to understand the configuration and parameters of the system or solve complicated power system equations, which has a better effect in suppressing low frequency oscillation in the power system and is advantageous for improving the safety and stability level of the power grid.

摘要翻译： 一种用于抑制电力系统中的低频振荡的方法，装置和系统。 该方法包括确定可变频变压器（VFT）所在的互连电力系统部分的系统传递函数; 根据系统传递函数确定阻尼控制器参数; 并通过基于阻尼控制器参数的VFT抑制电力系统的低频振荡。 方法，装置和系统的目的是确定的：通过简单地跟踪和分析系统对干扰的响应，可以实现阻尼控制器参数的优化，无需了解系统的配置和参数或解决复杂的电力系统 方程式对抑制电力系统中的低频振荡具有更好的效果，有利于提高电网的安全稳定性。

公开(公告)号：US20120212862A1

公开(公告)日：2012-08-23

申请号：US13391562

申请日：2010-08-19

申请人： Liangeng Ban ,  Jiming Lin ,  Zutao Xiang ,  Bin Han ,  Xiaogang Wang ,  Xiaotong Wang ,  Ruihua Song ,  Hongtao Liu ,  Bin Zheng

发明人： Liangeng Ban ,  Jiming Lin ,  Zutao Xiang ,  Bin Han ,  Xiaogang Wang ,  Xiaotong Wang ,  Ruihua Song ,  Hongtao Liu ,  Bin Zheng

IPC分类号： H02H9/08

CPC分类号： H02H7/267 ,  G01R31/025 ,  G01R31/085 ,  H02H9/08

摘要： A method and a device for limiting secondary arc current of an extra-high voltage/ultra-high voltage double circuit line on the same tower. The method comprises the following steps: determining the type of a single-phase-to-ground fault when the extra-high voltage/ultra-high voltage double circuit line on the same tower has a single-phase-to-ground fault (S501); selecting a reactance value of a neutral grounding reactor according to the type of the single-phase-to-ground fault (S502); and switching the extra-high voltage/ultra-high voltage double circuit line on the same tower to the selected reactance value of the neutral grounding reactor (S503). Thus the reactance value of the neutral grounding reactor is not constant, but is changed along with the operating conditions of the power transmission line, that is, the reactance value of the neutral grounding reactor is controllable. In this way, when the operating conditions of the extra-high voltage/ultra-high voltage double circuit line on the same tower are different, a neutral grounding reactor with an optimal reactance value can be selected so as to be accessed to the power transmission line, thereby effectively limiting the secondary arc current caused by the single-phase-to-ground fault.

摘要翻译： 一种用于限制同一塔上的超高压/超高压双回路线次级电弧电流的方法和装置。 该方法包括以下步骤：当同一塔架上的超高压/超高压双回路线路具有单相接地故障时，确定单相对地故障的类型（S501 ）; 根据单相接地故障的类型选择中性点接地电抗器的电抗值（S502）; 并将同一塔架上的超高压/超高压双电路线路切换到中性点接地电抗器的选定电抗值（S503）。 因此，中性接地电抗器的电抗值不是恒定的，而是随着输电线的运行条件而变化，即中性点接地电抗器的电抗值是可控的。 这样，当同一塔架上的超高压/超高压双回路线的工作条件不同时，可选择具有最佳电抗值的中立式接地电抗器，以便接入输电 从而有效地限制了单相接地故障引起的二次电弧电流。

公开(公告)号：US20100169300A1

公开(公告)日：2010-07-01

申请号：US12345645

申请日：2008-12-29

申请人： Qi Liu ,  Ruihua Song ,  Jiangming Yang

发明人： Qi Liu ,  Ruihua Song ,  Jiangming Yang

IPC分类号： G06F17/30 ,  G06F7/00

CPC分类号： G06F17/30864

摘要： Techniques described herein allow for suggesting creation of tools for improving search engine performance. Specifically, these tools focus on producing more relevant search engine results via a URL-based query clustering method. These tools first extract tokens from Uniform Resource Locators associated to search queries. With these tokens, these tools form query clusters of common tokens. The resulting clusters can be used to help understand the similarities in user search queries via URL-based cluster queries to produce more relevant search results.

摘要翻译： 本文描述的技术允许建议创建用于改善搜索引擎性能的工具。 具体来说，这些工具专注于通过基于URL的查询群集方法生成更相关的搜索引擎结果。 这些工具首先从与搜索查询相关联的统一资源定位器中提取令牌。 使用这些令牌，这些工具形成常见令牌的查询集群。 所得到的集群可以用于通过基于URL的集群查询来帮助理解用户搜索查询的相似性，以产生更相关的搜索结果。