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    • 1. 发明授权
    • Preventing leakage of information over a network
    • 防止信息在网络上泄漏
    • US08725762B2
    • 2014-05-13
    • US13387477
    • 2010-07-07
    • Shunsuke IshikawaRyoji KurosawaYuriko NishikawaYoshinori Tahara
    • Shunsuke IshikawaRyoji KurosawaYuriko NishikawaYoshinori Tahara
    • G06F17/30
    • H04L67/2819G06F17/30283G06F21/6263G06F2221/2101G06F2221/2123H04L67/2852
    • Information is acquired over a network by acquiring an original request including a current search value that specifies information to be acquired from a database. It is determined whether the information to be acquired by the original request is singular with respect to a request previously issued by the information processing apparatus and stored in a request log in which a history of search values is registered. A diffusion request is generated including a dummy request to dilute singularity of an access log related to the current search value to the database issued by the information processing apparatus where the original request is determined to be singular with respect to the current search value, the dummy request being generated from a dummy value that provides a different search value requesting information different from the information to be acquired. The diffusion request is issued as a search request to the database over the network. The search result information acquired by the diffusion request is extracted from a response to the search request.
    • 通过获取包括指定要从数据库获取的信息的当前搜索值的原始请求,通过网络获取信息。 确定由原始请求获取的信息是否相对于先前由信息处理设备发出并存储在其中登记有搜索值的历史的请求日志中的请求是奇异的。 产生扩散请求,包括将与当前搜索值相关的访问日志的奇异性稀疏到由信息处理设备发布的数据库的虚拟请求,其中原始请求被确定为相对于当前搜索值是奇异的,虚拟 从提供不同于要获取的信息的信息的不同搜索值的虚拟值生成请求。 扩散请求作为搜索请求发布到网络上的数据库。 从对搜索请求的响应中提取由扩散请求获取的搜索结果信息。
    • 3. 发明授权
    • Integrating databases
    • 集成数据库
    • US08965912B2
    • 2015-02-24
    • US11926504
    • 2007-10-29
    • Takeshi FukudaRyoji KurosawaMasahiro Ohkawa
    • Takeshi FukudaRyoji KurosawaMasahiro Ohkawa
    • G06F17/30
    • G06F17/30557G06F17/30545
    • A system for integrating databases comprises a first virtual table, a second virtual table, a common table, a list, a generating section, and a selecting section. The first virtual table corresponds to a first data. The second virtual table corresponds to a second data. The common table is associated with the first and second virtual tables. The list indicates information about associations between the first and second virtual tables and the common table. The generating section generates two or more access plans from a database query on the common table. The two or more access plans involve at least one of the first and second virtual tables in accordance with the list. The selecting section selects one of the two or more access plans generated by the generating section to be used to execute the database query.
    • 用于集成数据库的系统包括第一虚拟表,第二虚拟表,公用表,列表,生成部分和选择部分。 第一虚拟表对应于第一数据。 第二虚拟表对应于第二数据。 公用表与第一个和第二个虚拟表相关联。 该列表指示关于第一和第二虚拟表与公用表之间的关联的信息。 生成部分从公用表上的数据库查询生成两个或多个访问计划。 两个或多个访问计划涉及根据列表的第一和第二虚拟表中的至少一个。 选择部分选择由生成部分生成的用于执行数据库查询的两个或多个访问计划之一。
    • 4. 发明申请
    • PREVENTING LEAKAGE OF INFORMATION OVER A NETWORK
    • 防止网络上的信息泄漏
    • US20120284299A1
    • 2012-11-08
    • US13387477
    • 2010-07-07
    • Shunsuke IshikawaRyoji KurosawaYuriko NishikawaYoshinori Tahara
    • Shunsuke IshikawaRyoji KurosawaYuriko NishikawaYoshinori Tahara
    • G06F17/30G06F15/16
    • H04L67/2819G06F17/30283G06F21/6263G06F2221/2101G06F2221/2123H04L67/2852
    • Information is acquired over a network by acquiring an original request including a current search value that specifies information to be acquired from a database. It is determined whether the information to be acquired by the original request is singular with respect to a request previously issued by the information processing apparatus and stored in a request log in which a history of search values is registered. A diffusion request is generated including a dummy request to dilute singularity of an access log related to the current search value to the database issued by the information processing apparatus where the original request is determined to be singular with respect to the current search value, the dummy request being generated from a dummy value that provides a different search value requesting information different from the information to be acquired. The diffusion request is issued as a search request to the database over the network. The search result information acquired by the diffusion request is extracted from a response to the search request.
    • 通过获取包括指定要从数据库获取的信息的当前搜索值的原始请求,通过网络获取信息。 确定由原始请求获取的信息是否相对于先前由信息处理设备发出并存储在其中登记有搜索值的历史的请求日志中的请求是奇异的。 产生扩散请求,包括将与当前搜索值相关的访问日志的奇异性稀疏到由信息处理设备发布的数据库的虚拟请求,其中原始请求被确定为相对于当前搜索值是奇异的,虚拟 从提供不同于要获取的信息的信息的不同搜索值的虚拟值生成请求。 扩散请求作为搜索请求发布到网络上的数据库。 从对搜索请求的响应中提取由扩散请求获取的搜索结果信息。
    • 5. 发明申请
    • SYSTEM, METHOD, AND PROGRAM PRODUCT FOR INTEGRATING DATABASES
    • 用于集成数据库的系统,方法和程序产品
    • US20080306904A1
    • 2008-12-11
    • US11926504
    • 2007-10-29
    • Takeshi FukudaRyoji KurosawaMasahiro Ohkawa
    • Takeshi FukudaRyoji KurosawaMasahiro Ohkawa
    • G06F17/30
    • G06F17/30557G06F17/30545
    • A system for integrating databases comprises a first virtual table, a second virtual table, a common table, a list, a generating section, and a selecting section. The first virtual table corresponds to a first data. The second virtual table corresponds to a second data. The common table is associated with the first and second virtual tables. The list indicates information about associations between the first and second virtual tables and the common table. The generating section generates two or more access plans from a database query on the common table. The two or more access plans involve at least one of the first and second virtual tables in accordance with the list. The selecting section selects one of the two or more access plans generated by the generating section to be used to execute the database query.
    • 用于集成数据库的系统包括第一虚拟表,第二虚拟表,公用表,列表,生成部分和选择部分。 第一虚拟表对应于第一数据。 第二虚拟表对应于第二数据。 公用表与第一个和第二个虚拟表相关联。 该列表指示关于第一和第二虚拟表与公用表之间的关联的信息。 生成部分从公用表上的数据库查询生成两个或多个访问计划。 两个或多个访问计划涉及根据列表的第一和第二虚拟表中的至少一个。 选择部分选择由生成部分生成的用于执行数据库查询的两个或多个访问计划之一。