Patents by Inventor Ruihua Song
Ruihua Song has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20130257166Abstract: 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.Type: ApplicationFiled: October 14, 2011Publication date: October 3, 2013Applicant: STATE GRID CORPORATION OF CHINAInventors: Gesong Chen, Xiaoxin Zhou, Ruihua Song
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Publication number: 20130173605Abstract: Techniques are described for automatically mining query dimensions from web pages resulting from execution of a search query. Lists of items such as words, terms, or phrases are extracted from the web pages based on the recognition of free text, metadata tag, or repeated region patterns within the web page text. Extracted item lists are weighted according to document matching and/or inverse document frequency, and item lists are clustered based on shared or similar items within the lists to generate query dimensions. The generated query dimensions, and the items within each query dimension, are ranked according to quality, and high-quality query dimensions are provided for display alongside top search results.Type: ApplicationFiled: January 4, 2012Publication date: July 4, 2013Applicant: MICROSOFT CORPORATIONInventors: Zhicheng Dou, Ruihua Song, Ji-Rong Wen
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Patent number: 8401977Abstract: A method and system for identifying the importance of information areas of a display page. An importance system identifies information areas or blocks of a web page. A block of a web page represents an area of the web page that appears to relate to a similar topic. The importance system provides the characteristics or features of a block to an importance function that generates an indication of the importance of that block to its web page. The importance system “learns” the importance function by generating a model based on the features of blocks and the user-specified importance of those blocks. To learn the importance function, the importance system asks users to provide an indication of the importance of blocks of web pages in a collection of web pages.Type: GrantFiled: January 10, 2012Date of Patent: March 19, 2013Assignee: Microsoft CorporationInventors: Wei-Ying Ma, Ji-Rong Wen, Ruihua Song, Haifeng Liu
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Patent number: 8380722Abstract: This document describes tools for adjusting anchor text weight to provide more relevant search engine results. Specifically, these tools take advantage of a site-relationship model to consider relationships not only between an anchor text source site and a destination page but also relationships between multiple anchor text source sites to improve web searches. Consideration of these relationships aids in determining a new an anchor text weight, which in turn results in more relevant search results.Type: GrantFiled: March 29, 2010Date of Patent: February 19, 2013Assignee: Microsoft CorporationInventors: Zhicheng Dou, Junyan Chen, Ruihua Song, Ji-Rong Wen
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Publication number: 20120212862Abstract: 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.Type: ApplicationFiled: August 19, 2010Publication date: August 23, 2012Applicants: STATE GRID CORPORATION OF CHINA, CHINA ELECTRIC POWER RESEARCH INSTITUTEInventors: Liangeng Ban, Jiming Lin, Zutao Xiang, Bin Han, Xiaogang Wang, Xiaotong Wang, Ruihua Song, Hongtao Liu, Bin Zheng
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Publication number: 20120109950Abstract: A method and system for identifying the importance of information areas of a display page. An importance system identifies information areas or blocks of a web page. A block of a web page represents an area of the web page that appears to relate to a similar topic. The importance system provides the characteristics or features of a block to an importance function that generates an indication of the importance of that block to its web page. The importance system “learns” the importance function by generating a model based on the features of blocks and the user-specified importance of those blocks. To learn the importance function, the importance system asks users to provide an indication of the importance of blocks of web pages in a collection of web pages.Type: ApplicationFiled: January 10, 2012Publication date: May 3, 2012Applicant: Microsoft CorporationInventors: Wei-Ying Ma, Ji-Rong Wen, Ruihua Song, Haifeng Liu
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Publication number: 20120054192Abstract: 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.Type: ApplicationFiled: August 30, 2010Publication date: March 1, 2012Applicant: MICROSOFT CORPORATIONInventors: Ruihua Song, Qi Yao, Junyan Chen
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Patent number: 8095478Abstract: A method and system for identifying the importance of information areas of a display page. An importance system identifies information areas or blocks of a web page. A block of a web page represents an area of the web page that appears to relate to a similar topic. The importance system provides the characteristics or features of a block to an importance function that generates an indication of the importance of that block to its web page. The importance system “learns” the importance function by generating a model based on the features of blocks and the user-specified importance of those blocks. To learn the importance function, the importance system asks users to provide an indication of the importance of blocks of web pages in a collection of web pages.Type: GrantFiled: April 10, 2008Date of Patent: January 10, 2012Assignee: Microsoft CorporationInventors: Wei-Ying Ma, Ji-Rong Wen, Ruihua Song, Haifeng Liu
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Publication number: 20110238644Abstract: This document describes tools for adjusting anchor text weight to provide more relevant search engine results. Specifically, these tools take advantage of a site-relationship model to consider relationships not only between an anchor text source site and a destination page but also relationships between multiple anchor text source sites to improve web searches. Consideration of these relationships aids in determining a new an anchor text weight, which in turn results in more relevant search results.Type: ApplicationFiled: March 29, 2010Publication date: September 29, 2011Applicant: Microsoft CorporationInventors: Zhicheng Dou, Junyan Chen, Ruihua Song, Ji-Rong Wen
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Publication number: 20110209048Abstract: Interactive synchronization of Web data and spreadsheets is usable to build data wrappers based on any type of data found in a document. Such data wrappers can be used to interact with source documents, crawl a network for additional data, map data from across domains, and/or synchronize data from dynamic Web documents.Type: ApplicationFiled: February 19, 2010Publication date: August 25, 2011Applicant: Microsoft CorporationInventors: Matthew Robert Scott, Ruochi Zhang, Ruihua Song, Ji-Rong Wen
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Publication number: 20110191381Abstract: Described is a technology for efficiently labeling a webpage. A wrapper tool labels records of a webpage at the record level. If an existing wrapper exists that is appropriate for labeling a record, the wrapper tool automatically labels that record. For unlabeled records, the tool provides a user interface to label those records, and updates the set of existing wrappers with a new wrapper that is generated based upon the labeling operation; the new wrapper is then applied to any unlabeled records if appropriate for those records. As a result, a user typically needs only to label a relatively few records, with the wrappers generated for those records automatically used to label the other unlabeled records of the webpage.Type: ApplicationFiled: January 29, 2010Publication date: August 4, 2011Applicant: Microsoft CorporationInventors: Shuyi Zheng, Ruihua Song, Matthew Robert Scott, Ji-Rong Wen
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Patent number: 7962487Abstract: 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.Type: GrantFiled: December 29, 2008Date of Patent: June 14, 2011Assignee: Microsoft CorporationInventors: Qi Liu, Ruihua Song, Jiangming Yang
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Publication number: 20100169300Abstract: 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.Type: ApplicationFiled: December 29, 2008Publication date: July 1, 2010Applicant: Microsoft CorporationInventors: Qi Liu, Ruihua Song, Jiangming Yang
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Patent number: 7660804Abstract: 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.Type: GrantFiled: August 16, 2006Date of Patent: February 9, 2010Assignee: Microsoft CorporationInventors: Ji-Rong Wen, Min Wan, Ruihua Song, Wei-Ying Ma, Shuyi Zeng
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Patent number: 7630964Abstract: A method and system for determining relevance of a document to a query based on identifier match distance is provided. The relevance system analyzes a training set of queries and documents to determine the relationship between identifier match distance and relevance of a document to a query. The identifier match distance indicates the distance from the end of an identifier of a document to an identifier term that matches a query term. The relevance system generates a prior relevance probability that a document with a certain identifier match distance is relevant to a query. The relevance system uses the prior relevance probabilities to determine relevance of documents to queries based on identifier match distance.Type: GrantFiled: November 14, 2005Date of Patent: December 8, 2009Assignee: Microsoft CorporationInventors: Guomao Xin, Ji-Rong Wen, Ruihua Song, Shuming Shi, Wei-Ying Ma
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Patent number: 7607082Abstract: Categorizing page block functionality to improve document layout for browsing is described. In one aspect, document content is analyzed with respect to multiple block function criteria. Results of this analysis are used to assign a respective block function to blocks of the document content. These block function assignments are used to generate one or more customized document layouts for browsing by a user.Type: GrantFiled: September 26, 2005Date of Patent: October 20, 2009Assignee: Microsoft CorporationInventors: Xing Xie, Gengxin Miao, Guomao Xin, Ruihua Song, Ji-Rong Wen, Wei-Ying Ma
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Publication number: 20090182734Abstract: 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.Type: ApplicationFiled: January 9, 2009Publication date: July 16, 2009Inventors: Ji-Rong Wen, Ruihua Song, Wei-Ying Ma
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Patent number: 7480652Abstract: 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.Type: GrantFiled: October 26, 2005Date of Patent: January 20, 2009Assignee: Microsoft CorporationInventors: Ji-Rong Wen, Ruihua Song, Wei-Ying Ma
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Patent number: 7469251Abstract: 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.Type: GrantFiled: July 29, 2005Date of Patent: December 23, 2008Assignee: Microsoft CorporationInventors: Hang Li, Ruihua Song, Yunbo Cao, Dmitriy Meyerzon
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Publication number: 20080256068Abstract: A method and system for identifying the importance of information areas of a display page. An importance system identifies information areas or blocks of a web page. A block of a web page represents an area of the web page that appears to relate to a similar topic. The importance system provides the characteristics or features of a block to an importance function that generates an indication of the importance of that block to its web page. The importance system “learns” the importance function by generating a model based on the features of blocks and the user-specified importance of those blocks. To learn the importance function, the importance system asks users to provide an indication of the importance of blocks of web pages in a collection of web pages.Type: ApplicationFiled: April 10, 2008Publication date: October 16, 2008Applicant: Microsoft CorporationInventors: Wei-Ying Ma, Ji-Rong Wen, Ruihua Song, Haifeng Liu