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51. 发明申请

US20090248725A1 COMPRESSABILITY ESTIMATION OF NON-UNIQUE INDEXES IN A DATABASE MANAGEMENT SYSTEM 失效
标题翻译：数据库管理系统中非特定索引的可压缩性估计
公开(公告)号：US20090248725A1
公开(公告)日：2009-10-01
申请号：US12057055
申请日：2008-03-27
申请人： BISHWARANJAN BHATTACHARJEE , Lipyeow Lim , George A. Mihaila
发明人： BISHWARANJAN BHATTACHARJEE , Lipyeow Lim , George A. Mihaila
IPC分类号： G06F17/30
CPC分类号： G06F17/30312 , H03M7/30
摘要： A method, information processing system, and computer readable storage product estimate a compression factor. A set of key values within an index are analyzed. Each key value is associated with a record identifier (“RID”) list comprising a set of RIDs. The index is in an uncompressed format and includes a total byte length. A number of RIDs associated with each key value is estimated for each key value in the set of key values. A total byte length for all RID deltas between each at least two consecutive RIDs within a RID list is estimated for each RID list based on the number of RIDs that have been determined. The total byte length estimated for each RID list is accumulated. A compression factor associated with the index is determined by dividing the total byte length that has been accumulated by the byte length of the index.
摘要翻译：一种方法，信息处理系统和计算机可读存储产品估计压缩因子。分析索引中的一组关键值。每个密钥值与包括一组RID的记录标识符（“RID”）列表相关联。索引为未压缩格式，包括总字节长度。与密钥值集合中的每个密钥值估计与每个密钥值相关联的多个RID。基于已经确定的RID的数量，针对每个RID列表估计RID列表内的每个至少两个连续RID之间的所有RID差分的总字节长度。累积为每个RID列表估计的总字节长度。通过将累加的总字节长度除以索引的字节长度来确定与索引相关联的压缩因子。

52. 发明申请

US20090248724A1 Method and Apparatus for Encoding List of Variable Length Structures to Support Bi-Directional Scans 失效
标题翻译：用于编码可变长度结构列表以支持双向扫描的方法和装置
公开(公告)号：US20090248724A1
公开(公告)日：2009-10-01
申请号：US12057012
申请日：2008-03-27
申请人： Bishwaranjan Bhattacharjee , Lipyeow Lim , Timothy Ray Malkemus , George Andrei Mihaila
发明人： Bishwaranjan Bhattacharjee , Lipyeow Lim , Timothy Ray Malkemus , George Andrei Mihaila
IPC分类号： G06F17/30
CPC分类号： G06F17/30958 , G06F17/30286
摘要： Techniques are disclosed for encoding a variable length structure such that it facilitates forward and reverse scans of a list of such structures as needed. While the techniques are applicable to a wide variety of applications, they are particularly well-suited for use with structures such as those found in compressed database indexes. For example, a computer-implemented method for processing one or more variable length data structures includes the following steps. Each variable length data structure is obtained. Each variable length structure comprises one or more data block. A variable length encoding process is applied to the one or more blocks of each variable length data structure which comprises setting a continuation data value in each block to a first value or a second value, wherein the setting of the continuation data values enables bi-directional scanning of each variable length structure.
摘要翻译：公开了用于编码可变长度结构的技术，使得其有助于正向和反向扫描所需的这种结构的列表。虽然这些技术适用于各种各样的应用，但它们特别适用于诸如在压缩数据库索引中发现的结构。例如，用于处理一个或多个可变长度数据结构的计算机实现的方法包括以下步骤。获得每个可变长度数据结构。每个可变长度结构包括一个或多个数据块。可变长度编码处理被应用于每个可变长度数据结构的一个或多个块，其包括将每个块中的连续数据值设置为第一值或第二值，其中，连续数据值的设置允许双向扫描每个可变长度结构。

53. 发明申请

US20090248723A1 Method and Apparatus for Selecting an Optimal Delete-Safe Compression Method on List of Delta Encoded Integers 有权
标题翻译：用于在Delta编码整数列表中选择最佳删除安全压缩方法的方法和装置
公开(公告)号：US20090248723A1
公开(公告)日：2009-10-01
申请号：US12056979
申请日：2008-03-27
申请人： Bishwaranjan Bhattacharjee , Lipyeow Lim , Timothy Ray Malkemus , George Andrei Mihaila
发明人： Bishwaranjan Bhattacharjee , Lipyeow Lim , Timothy Ray Malkemus , George Andrei Mihaila
IPC分类号： G06F17/30
CPC分类号： H03M7/30
摘要： Techniques are disclosed for selecting a delete-safe compression method for a plurality of delta encoded data values (e.g., delta encoded integers or deltas). For example, a computer-implemented method for selecting an optimal delete-safe compression algorithm from among two or more compression algorithms for use on a plurality of delta encoded data values includes the following steps. The maximum number of data values eliminated by each of the two or more compression algorithms is computed. For the plurality of delta encoded data values to be compressed, the minimum size of the plurality of delta encoded data values before compression thereof is computed. A delete-safe threshold value is computed based on the minimum size of the plurality of delta encoded data values. Then, the compression algorithm is selected from the two or more compression algorithms that achieves the delete-safe threshold value.
摘要翻译：公开了用于为多个增量编码的数据值（例如，增量编码的整数或三角形）选择删除安全的压缩方法的技术。例如，用于从用于多个增量编码数据值的两个或更多个压缩算法中选择最佳删除安全压缩算法的计算机实现的方法包括以下步骤。计算由两个或更多个压缩算法中的每一个消除的数据值的最大数目。对于要压缩的多个delta编码数据值，计算其压缩之前的多个Δ编码数据值的最小大小。基于多个增量编码数据值的最小大小来计算删除安全阈值。然后，从实现删除安全阈值的两个或更多个压缩算法中选择压缩算法。

54. 发明申请

US20090138549A1 Method, Apparatus and System for Business Performance Monitoring and Analysis Using Metric Network 失效
标题翻译：使用度量网络进行业务绩效监控和分析的方法，设备和系统
公开(公告)号：US20090138549A1
公开(公告)日：2009-05-28
申请号：US12273629
申请日：2008-11-19
申请人： Pu Huang , Hui Lei , Lipyeow Lim
发明人： Pu Huang , Hui Lei , Lipyeow Lim
IPC分类号： G06F15/173
CPC分类号： G06Q10/06 , Y10S707/99933
摘要： A metric network provides a descriptive model that explicitly expresses the relationships among all metrics of a business enterprise. Performance of each single business entity in the operational level is measured by a set of primitive metrics, each of which measures a specific aspect of the business entity. The primitive metrics construct the base on which the whole metric network is built.
摘要翻译：度量网络提供了明确表达企业所有度量标准之间关系的描述性模型。运营级别中每个单一业务实体的绩效由一组原始度量衡量，每个度量衡量业务实体的特定方面。原始度量构建了构建整个度量网络的基础。

55. 发明申请

US20070162488A1 Method, apparatus and system for business performance monitoring and analysis using metric network 失效
标题翻译：使用度量网络进行业务绩效监控和分析的方法，设备和系统
公开(公告)号：US20070162488A1
公开(公告)日：2007-07-12
申请号：US11328026
申请日：2006-01-09
申请人： Pu Huang , Hui Lei , Lipyeow Lim
发明人： Pu Huang , Hui Lei , Lipyeow Lim
IPC分类号： G06F7/00
CPC分类号： G06Q10/06 , Y10S707/99933
摘要： A metric network provides a descriptive model that explicitly expresses the relationships among all metrics of a business enterprise. Performance of each single business entity in the operational level is measured by a set of primitive metrics, each of which measures a specific aspect of the business entity. The primitive metrics construct the base on which the whole metric network is built.
摘要翻译：度量网络提供了明确表达企业所有度量标准之间关系的描述性模型。运营级别中每个单一业务实体的绩效由一组原始度量衡量，每个度量衡量业务实体的特定方面。原始度量构建了构建整个度量网络的基础。

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