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    • 4. 发明申请
    • METHOD AND SYSTEM FOR DELETING DATA
    • 用于删除数据的方法和系统
    • WO2012062539A1
    • 2012-05-18
    • PCT/EP2011/068161
    • 2011-10-18
    • INTERNATIONAL BUSINESS MACHINES CORPORATIONIBM UNITED KINGDOM LIMITEDHIRSCH, Michael
    • HIRSCH, Michael
    • G06F21/24
    • G06F21/62G06F3/0641G06F11/1453G06F17/3015G06F17/30156G06F2221/2143
    • Methods, computer systems, and computer program products for deleting data in a computing environment are provided. A computer system having at least first and second documents, a plurality of decryption keys, and a plurality of data segments stored therein is provided. Each of the plurality of data segments is decryptable by a selected one of the decryption keys. The decryption keys include a first set of decryption keys associated with the first document and not associated with the second document, a second set of decryption keys associated with the second document and not associated with the first document, and a third set of decryption keys associated with the first document and the second document. The first document is deleted, and in response, the first set of decryption keys is rendered unusable, and the second set of decryption keys and the third set of decryption keys are not rendered unusable.
    • 提供了用于在计算环境中删除数据的方法,计算机系统和计算机程序产品。 提供一种具有至少第一和第二文档,多个解密密钥以及存储在其中的多个数据段的计算机系统。 多个数据段中的每一个可由所选择的一个解密密钥解密。 解密密钥包括与第一文档相关联并且不与第二文档相关联的第一组解密密钥,与第二文档相关联并且不与第一文档相关联的第二组解密密钥,以及与第一文档相关联的第三组解密密钥 与第一个文件和第二个文件。 第一个文档被删除,并且作为响应,第一组解密密钥变得不可用,并且第二组解密密钥和第三组解密密钥不会变得不可用。
    • 8. 发明申请
    • VIRTUAL MACHINE STAGE DETECTION
    • 虚拟机检测
    • WO2012041600A1
    • 2012-04-05
    • PCT/EP2011/064215
    • 2011-08-18
    • INTERNATIONAL BUSINESS MACHINES CORPORATIONPIRVU, Marius
    • PIRVU, Marius
    • G06F9/455G06F9/45
    • G06F9/455G06F9/45516
    • A computer implemented method, system and computer program product for categorizing a virtual machine stage. A data processing system starts a virtual machine. It sets factor-stage ranges, wherein for each combination factor and stage, a corresponding range is present, and wherein each range is as broad as a reset range. It sets a frequency for sampling virtual machine metrics and samples virtual machine metrics to form a plurality of virtual machine metrics for each factor. It applies a value to each range satisfied by each virtual machine metric, to form a plurality of stage-qualifying values corresponding to a range, and sums all stage-qualifying values for each stage, to form a stage likelihood. The data processing system further selects a stage corresponding a highest stage likelihood. The data processing system determines if the current range is different from a former range. The system expands each range corresponding to the current stage.
    • 一种用于分类虚拟机阶段的计算机实现的方法,系统和计算机程序产品。 数据处理系统启动虚拟机。 它设置因子级范围,其中对于每个组合因子和级,存在相应的范围,并且其中每个范围与复位范围一样宽。 它设置用于对虚拟机度量进行采样的频率,并对虚拟机度量进行采样,以形成每个因素的多个虚拟机度量。 它对每个虚拟机度量满足的每个范围应用一个值,以形成对应于一个范围的多个阶段限定值,并对每个阶段的所有阶段限定值进行求和以形成阶段可能性。 数据处理系统进一步选择对应于最高级似然性的级。 数据处理系统确定当前范围是否与前一个范围不同。 系统扩展与当前阶段相对应的每个范围。