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1. 发明授权

US08266150B1 Scalable document signature search engine 有权
标题翻译：可扩展文档签名搜索引擎
公开(公告)号：US08266150B1
公开(公告)日：2012-09-11
申请号：US12364134
申请日：2009-02-02
申请人： Yingqiang Lin , Liwei Ren , Dehua Tan
发明人： Yingqiang Lin , Liwei Ren , Dehua Tan
IPC分类号： G06F17/30 , G06F7/00
CPC分类号： G06F17/30619
摘要： A document signature index and search system is disclosed. The logical structure of the signature index that includes search tables is defined. Also specified is a system of creating, managing and using the signature index. The system includes an index engine and search engine. The search tables are compact in disk usage and suitable for differential computation, making large scale deployment feasible. With the introduction of meta-data and an algorithm of multiple value dual binary searching, the search engine based on the search tables is very efficient in searching for signatures from large search tables which may store millions of signatures. Other embodiments, aspects and features are also disclosed.
摘要翻译：公开了文件签名索引和搜索系统。定义包含搜索表的签名索引的逻辑结构。还指定了创建，管理和使用签名索引的系统。该系统包括索引引擎和搜索引擎。搜索表在磁盘使用中紧凑，适用于差分计算，大规模部署可行。通过引入元数据和多值双二进制搜索的算法，基于搜索表的搜索引擎在搜索可能存储数百万个签名的大型搜索表中的签名方面非常有效。还公开了其它实施例，方面和特征。

2. 发明授权

US09342697B1 Scalable security policy architecture for data leakage prevention 有权
标题翻译：可扩展的安全策略架构，用于数据泄露预防
公开(公告)号：US09342697B1
公开(公告)日：2016-05-17
申请号：US12421217
申请日：2009-04-09
申请人： Liwei Ren , Dehua Tan , Yingqiang Lin
发明人： Liwei Ren , Dehua Tan , Yingqiang Lin
IPC分类号： G06F21/60 , H04L29/06
CPC分类号： G06F21/60 , G06F21/554 , G06F21/606 , H04L63/20
摘要： One embodiment relates to an apparatus for creating and managing security policies for data leakage prevention. The apparatus includes a database which stores three layers of objects comprising digital assets, content templates, and security policies, and a user interface configured to access said database so as to provide for input and editing of said three layers of objects. The security policies may include at least a target element, an action element, and a condition element. A content template may be used to form the condition element. Content templates may include compliance templates which are configured to satisfy specific regulatory requirements and other templates to protect specified types of information. Other embodiments, aspects and features are also disclosed.
摘要翻译：一个实施例涉及用于创建和管理用于防止数据泄露的安全策略的装置。该装置包括存储包括数字资产，内容模板和安全策略的三层对象的数据库，以及被配置为访问所述数据库以便提供对所述三层对象的输入和编辑的用户界面。安全策略可以至少包括目标元素，动作元素和条件元素。可以使用内容模板来形成条件元素。内容模板可能包括配置为满足特定监管要求的合规模板和其他模板以保护指定类型的信息。还公开了其它实施例，方面和特征。

3. 发明授权

US09203623B1 Apparatus and methods for keyword proximity matching 有权
标题翻译：关键词近距离匹配的装置和方法
公开(公告)号：US09203623B1
公开(公告)日：2015-12-01
申请号：US12642613
申请日：2009-12-18
申请人： Yingqiang Lin , Dehua Tan , Liwei Ren
发明人： Yingqiang Lin , Dehua Tan , Liwei Ren
IPC分类号： G06F17/30 , H04L9/32
CPC分类号： H04L9/32 , G06F21/56
摘要： One embodiment relates to an apparatus configured to match a list of keywords against a target document. The apparatus includes data storage configured to store computer-readable instruction code and data, and a processor configured to access the data storage and to execute said computer-readable instruction code. The apparatus further includes a keyword searcher and a keyword object generator. The keyword searcher is configured to receive the list of keywords and a textual string corresponding to the target document file, and search the textual string for instances of the keywords so as to generate a sequence of keyword instances. The keyword object generator implemented using the instruction code and configured to receive the sequence of keyword instances, and generate a keyword object, wherein the keyword object includes a range-dependent match function. Other embodiments and features are also disclosed.
摘要翻译：一个实施例涉及被配置为将目标文档的关键字列表进行匹配的装置。该装置包括被配置为存储计算机可读指令代码和数据的数据存储器，以及被配置为访问数据存储器并执行所述计算机可读指令代码的处理器。该装置还包括关键字搜索器和关键字对象生成器。关键字搜索器被配置为接收关键字列表和对应于目标文档文件的文本字符串，并且搜索文本字符串以获得关键字的实例，以便生成关键字实例的序列。所述关键字对象生成器使用所述指令代码实现并且被配置为接收所述关键字实例的序列，并且生成关键字对象，其中所述关键字对象包括范围相关匹配函数。还公开了其它实施例和特征。

4. 发明授权

US07860853B2 Document matching engine using asymmetric signature generation 有权
标题翻译：使用不对称签名生成的文档匹配引擎
公开(公告)号：US07860853B2
公开(公告)日：2010-12-28
申请号：US12069659
申请日：2008-02-11
申请人： Liwei Ren , Shu Huang , Fei Huang , Yingqiang Lin
发明人： Liwei Ren , Shu Huang , Fei Huang , Yingqiang Lin
IPC分类号： G06F7/00
CPC分类号： G06F17/30943 , G06F17/30722 , G06F17/30864 , G06Q50/22
摘要： An automated method of matching an input document to a set of documents from a document repository. A signature database is stored, the signature database including a document identifier and signatures generated by a first signature generator for each of the set of documents. The input document is received and signatures are generated for the input document using a second signature generator, and the signature database is searched using the signatures generated for the input document. The first and second signature generators are configured such that different numbers of signatures are generated for a same document. Other embodiments, aspects and features are also disclosed.
摘要翻译：将输入文档与文档库中的一组文档进行匹配的自动化方法。存储签名数据库，所述签名数据库包括文档标识符和由所述一组文档中的每一个由第一签名生成器生成的签名。接收输入文档并使用第二签名生成器为输入文档生成签名，并且使用为输入文档生成的签名来搜索签名数据库。第一和第二签名生成器被配置为使得针对同一文档生成不同数量的签名。还公开了其它实施例，方面和特征。

5. 发明申请

US20080195606A1 Document matching engine using asymmetric signature generation 有权
标题翻译：使用不对称签名生成的文档匹配引擎
公开(公告)号：US20080195606A1
公开(公告)日：2008-08-14
申请号：US12069659
申请日：2008-02-11
申请人： Liwei Ren , Shu Huang , Fei Huang , Yingqiang Lin
发明人： Liwei Ren , Shu Huang , Fei Huang , Yingqiang Lin
IPC分类号： G06F7/06 , G06F17/30
CPC分类号： G06F17/30943 , G06F17/30722 , G06F17/30864 , G06Q50/22
摘要： An automated method of matching an input document to a set of documents from a document repository. A signature database is stored, the signature database including a document identifier and signatures generated by a first signature generator for each of the set of documents. The input document is received and signatures are generated for the input document using a second signature generator, and the signature database is searched using the signatures generated for the input document. The first and second signature generators are configured such that different numbers of signatures are generated for a same document. Other embodiments, aspects and features are also disclosed.
摘要翻译：将输入文档与文档库中的一组文档进行匹配的自动化方法。存储签名数据库，所述签名数据库包括文档标识符和由所述一组文档中的每一个由第一签名生成器生成的签名。接收输入文档并使用第二签名生成器为输入文档生成签名，并且使用为输入文档生成的签名来搜索签名数据库。第一和第二签名生成器被配置为使得针对同一文档生成不同数量的签名。还公开了其它实施例，方面和特征。

6. 发明授权

US07516130B2 Matching engine with signature generation 有权
标题翻译：匹配引擎与签名生成
公开(公告)号：US07516130B2
公开(公告)日：2009-04-07
申请号：US11361340
申请日：2006-02-24
申请人： Liwei Ren , Dehua Tan , Fei Huang , Shu Huang , Aiguo Dong
发明人： Liwei Ren , Dehua Tan , Fei Huang , Shu Huang , Aiguo Dong
IPC分类号： G06F17/30 , G06F7/00
CPC分类号： G06F17/30616 , Y10S707/99935
摘要： A system and a method generates at least one signature associated with document. In one embodiment, a document comprised of text is received and parsed to generate a token set. The token set includes a plurality of tokens. Each token corresponds to the text in the document that is separated by a predefined character characteristic. A score is calculated for each token in the token set based on a frequency and distribution of the text in the document. Each token is then ranked based on the calculated score. A subset of the ranked tokes is selected and a signature is generated for each occurrence of the selected tokens. The selected list of signatures is then output.
摘要翻译：系统和方法生成与文档相关联的至少一个签名。在一个实施例中，接收并解析由文本组成的文档以生成令牌集。令牌集包括多个令牌。每个令牌对应于由预定义字符特征分隔的文档中的文本。基于文档中文本的频率和分布，为令牌集中的每个令牌计算分数。然后根据计算出的分数对每个令牌进行排名。选择排名的罢工的一个子集，并且为所选令牌的每次出现生成签名。然后输出所选择的签名列表。

7. 发明申请

US20060253439A1 Matching engine for querying relevant documents 有权
标题翻译：匹配引擎查询相关文档
公开(公告)号：US20060253439A1
公开(公告)日：2006-11-09
申请号：US11361447
申请日：2006-02-24
申请人： Liwei Ren , Shu Huang , Fei Huang , Aiguo Dong , Dehua Tan
发明人： Liwei Ren , Shu Huang , Fei Huang , Aiguo Dong , Dehua Tan
IPC分类号： G06F17/30
CPC分类号： G06F17/30616 , Y10S707/917
摘要： A system generates an output of documents having with a particular relevance range. The system receives an initial document comprising text, a list of documents for matching, each document comprising text, and a minimum substring match length. The system normalizes the text of the documents of the list of documents. The system searches common sub-strings between the text of the initial document and the text of each document of the list of documents. The system calculates a match percentage based on the search common sub-strings and outputs documents having a match percentage corresponding to a predetermined value. Also disclosed is a process for generating an output of documents within a particular relevance range.
摘要翻译：系统产生具有特定相关性范围的文档的输出。系统接收包括文本的初始文档，用于匹配的文档的列表，每个文档包括文本和最小子串匹配长度。系统将文档列表的文档的文本归一化。系统在初始文档的文本和文档列表中的每个文档的文本之间搜索公共子字符串。系统基于搜索公共子串计算匹配百分比，并输出具有与预定值相对应的匹配百分比的文档。还公开了用于在特定相关范围内生成文档的输出的过程。

8. 发明授权

US08171002B2 Matching engine with signature generation 有权
标题翻译：匹配引擎与签名生成
公开(公告)号：US08171002B2
公开(公告)日：2012-05-01
申请号：US12372326
申请日：2009-02-17
申请人： Liwei Ren , Dehua Tan , Fei Huang , Shu Huang , Aiguo Dong
发明人： Liwei Ren , Dehua Tan , Fei Huang , Shu Huang , Aiguo Dong
IPC分类号： G06F17/30
CPC分类号： G06F17/30616 , Y10S707/99935
摘要： A system and a method generates at least one signature associated with document. In one embodiment, a document comprised of text is received and parsed to generate a token set. The token set includes a plurality of tokens. Each token corresponds to the text in the document that is separated by a predefined character characteristic. A score is calculated for each token in the token set based on a frequency and distribution of the text in the document. Each token is then ranked based on the calculated score. A subset of the ranked tokes is selected and a signature is generated for each occurrence of the selected tokens. The selected list of signatures is then output.
摘要翻译：系统和方法生成与文档相关联的至少一个签名。在一个实施例中，接收并解析由文本组成的文档以生成令牌集。令牌集包括多个令牌。每个令牌对应于由预定义字符特征分隔的文档中的文本。基于文档中文本的频率和分布，为令牌集中的每个令牌计算分数。然后根据计算出的分数对每个令牌进行排名。选择排名的罢工的一个子集，并且为所选令牌的每次出现生成签名。然后输出所选择的签名列表。

9. 发明授权

US07747642B2 Matching engine for querying relevant documents 有权
标题翻译：匹配引擎查询相关文档
公开(公告)号：US07747642B2
公开(公告)日：2010-06-29
申请号：US11361447
申请日：2006-02-24
申请人： Liwei Ren , Shu Huang , Fei Huang , Aiguo Dong , Dehua Tan
发明人： Liwei Ren , Shu Huang , Fei Huang , Aiguo Dong , Dehua Tan
IPC分类号： G06F17/30
CPC分类号： G06F17/30616 , Y10S707/917
摘要： A system generates an output of documents having with a particular relevance range. The system receives an initial document comprising text, a list of documents for matching, each document comprising text, and a minimum substring match length. The system normalizes the text of the documents of the list of documents. The system searches common sub-strings between the text of the initial document and the text of each document of the list of documents. The system calculates a match percentage based on the search common sub-strings and outputs documents having a match percentage corresponding to a predetermined value. Also disclosed is a process for generating an output of documents within a particular relevance range.
摘要翻译：系统产生具有特定相关性范围的文档的输出。系统接收包括文本的初始文档，用于匹配的文档的列表，每个文档包括文本和最小子串匹配长度。系统将文档列表的文档的文本归一化。系统在初始文档的文本和文档列表中的每个文档的文本之间搜索公共子字符串。系统基于搜索公共子串计算匹配百分比，并输出具有与预定值对应的匹配百分比的文档。还公开了用于在特定相关范围内生成文档的输出的过程。

10. 发明申请

US20060253438A1 Matching engine with signature generation 有权
公开(公告)号：US20060253438A1
公开(公告)日：2006-11-09
申请号：US11361340
申请日：2006-02-24
申请人： Liwei Ren , Dehua Tan , Fei Huang , Shu Huang , Aiguo Dong
发明人： Liwei Ren , Dehua Tan , Fei Huang , Shu Huang , Aiguo Dong
IPC分类号： G06F17/30
CPC分类号： G06F17/30616 , Y10S707/99935
摘要： A system and a method generates at least one signature associated with document. In one embodiment, a document comprised of text is received and parsed to generate a token set. The token set includes a plurality of tokens. Each token corresponds to the text in the document that is separated by a predefined character characteristic. A score is calculated for each token in the token set based on a frequency and distribution of the text in the document. Each token is then ranked based on the calculated score. A subset of the ranked tokes is selected and a signature is generated for each occurrence of the selected tokens. The selected list of signatures is then output.

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