Elastic complex event processing
    1.
    发明授权
    Elastic complex event processing 有权
    弹性复杂事件处理

    公开(公告)号:US09002823B2

    公开(公告)日:2015-04-07

    申请号:US13536698

    申请日:2012-06-28

    IPC分类号: G06F7/00 G06F17/00 G06F17/30

    摘要: Systems and methods according to embodiments provide elasticity for complex event processing (CEP) systems. Embodiments may comprise at least the following three components: (1) incremental query optimization, (2) operator placement, and (3) cost explanation. Incremental query optimization allows avoiding simultaneous computation of identical results by performing operator-level query reuse and subsumption. Using automatic operator placement, a centralized CEP engine can be transformed into a distributed one by dynamically distributing and adjusting the execution according to unpredictable changes in data and query load. Cost explanation functionality can provide end users with near real-time insight into the monetary cost of the whole system, down to operator level granularity. Combination of these components allows a CEP system to be scaled up and down.

    摘要翻译: 根据实施例的系统和方法为复杂事件处理(CEP)系统提供弹性。 实施例可以至少包括以下三个部分:(1)增量查询优化,(2)操作者放置,和(3)成本说明。 增量查询优化允许通过执行运营商级查询重用和包含来避免同时计算相同的结果。 使用自动操作员放置,通过根据不可预测的数据和查询负载变化动态分配和调整执行,可以将集中式CEP引擎转换为分布式CEP引擎。 成本解释功能可以为终端用户提供近乎实时的整个系统的货币成本的洞察力,直到操作员级别的粒度。 这些组件的组合允许CEP系统被放大和缩小。

    Elastic Complex Event Processing
    2.
    发明申请
    Elastic Complex Event Processing 有权
    弹性复杂事件处理

    公开(公告)号:US20140006384A1

    公开(公告)日:2014-01-02

    申请号:US13536698

    申请日:2012-06-28

    IPC分类号: G06F17/30

    摘要: Systems and methods according to embodiments provide elasticity for complex event processing (CEP) systems. Embodiments may comprise at least the following three components: (1) incremental query optimization, (2) operator placement, and (3) cost explanation. Incremental query optimization allows avoiding simultaneous computation of identical results by performing operator-level query reuse and subsumption. Using automatic operator placement, a centralized CEP engine can be transformed into a distributed one by dynamically distributing and adjusting the execution according to unpredictable changes in data and query load. Cost explanation functionality can provide end users with near real-time insight into the monetary cost of the whole system, down to operator level granularity. Combination of these components allows a CEP system to be scaled up and down.

    摘要翻译: 根据实施例的系统和方法为复杂事件处理(CEP)系统提供弹性。 实施例可以至少包括以下三个部分:(1)增量查询优化,(2)操作者放置,和(3)成本说明。 增量查询优化允许通过执行运营商级查询重用和包含来避免同时计算相同的结果。 使用自动操作员放置,通过根据不可预测的数据和查询负载变化动态分配和调整执行,可以将集中式CEP引擎转换为分布式CEP引擎。 成本解释功能可以为终端用户提供近乎实时的整个系统的货币成本的洞察力,直到操作员级别的粒度。 这些组件的组合允许CEP系统被放大和缩小。

    Cost Monitoring and Cost-Driven Optimization of Complex Event Processing System
    3.
    发明申请
    Cost Monitoring and Cost-Driven Optimization of Complex Event Processing System 有权
    复杂事件处理系统的成本监控和成本驱动优化

    公开(公告)号:US20130346390A1

    公开(公告)日:2013-12-26

    申请号:US13529681

    申请日:2012-06-21

    IPC分类号: G06F17/30

    摘要: A cost monitoring system can monitor a cost of queries executing in a complex event processing system, running on top of a pay-as-you-go cloud infrastructure. Certain embodiments may employ a generic, cloud-platform independent cost model, multi-query optimization, cost calculation, and/or operator placement techniques, in order to monitor and explain query cost down to an operator level. Certain embodiments may monitor costs in near real-time, as they are created. Embodiments may function independent of an underlying complex event processing system and the underlying cloud platform. Embodiments can optimize a work plan of the cloud-based system so as to minimize cost for the end user, matching the cost model of the underlying cloud platform.

    摘要翻译: 成本监控系统可以监视在复杂事件处理系统中执行的查询的成本,并在付费即付云基础架构上运行。 某些实施例可以采用通用的,独立于云平台的成本模型,多查询优化,成本计算和/或操作员放置技术,以便监视和解释查询成本降低到操作者级别。 某些实施例可以在创建时近似实时地监视成本。 实施例可以独立于底层复杂事件处理系统和底层云平台。 实施例可以优化基于云的系统的工作计划,以最小化最终用户的成本,匹配底层云平台的成本模型。

    Fault tolerance based query execution
    4.
    发明授权
    Fault tolerance based query execution 有权
    基于容错的查询执行

    公开(公告)号:US09424150B2

    公开(公告)日:2016-08-23

    申请号:US13311596

    申请日:2011-12-06

    IPC分类号: G06F11/20 G06F17/30

    CPC分类号: G06F11/2035 G06F17/30477

    摘要: Various embodiments of systems and methods for a fault tolerance based query execution are described herein. Queries are received from users, the queries including operators. A multi-query optimization is performed on the operators included in the queries to obtain a query plan. A fault tolerance degree is determined for the operators included in the query plan. Based on the fault tolerance degree of the operators, nodes are assigned to the operators included in the query plan. The assigned nodes execute the operators included in the query plan to execute the queries. In one aspect, the nodes simultaneously execute the operators included in the query plan.

    摘要翻译: 本文描述了用于基于容错的查询执行的系统和方法的各种实施例。 来自用户的查询,包括运算符在内的查询。 对查询中包含的运算符执行多查询优化,以获取查询计划。 确定查询计划中包含的运营商的容错度。 根据运营商的容错度,将节点分配给查询计划中包含的运营商。 分配的节点执行查询计划中包含的运算符以执行查询。 在一个方面,节点同时执行查询计划中包括的运算符。

    Cost monitoring and cost-driven optimization of complex event processing system
    5.
    发明授权
    Cost monitoring and cost-driven optimization of complex event processing system 有权
    复杂事件处理系统的成本监控和成本驱动优化

    公开(公告)号:US09002822B2

    公开(公告)日:2015-04-07

    申请号:US13529681

    申请日:2012-06-21

    IPC分类号: G06F7/00 G06F17/00 G06F17/30

    摘要: A cost monitoring system can monitor a cost of queries executing in a complex event processing system, running on top of a pay-as-you-go cloud infrastructure. Certain embodiments may employ a generic, cloud-platform independent cost model, multi-query optimization, cost calculation, and/or operator placement techniques, in order to monitor and explain query cost down to an operator level. Certain embodiments may monitor costs in near real-time, as they are created. Embodiments may function independent of an underlying complex event processing system and the underlying cloud platform. Embodiments can optimize a work plan of the cloud-based system so as to minimize cost for the end user, matching the cost model of the underlying cloud platform.

    摘要翻译: 成本监控系统可以监视在复杂事件处理系统中执行的查询的成本,并在付费即付云基础架构上运行。 某些实施例可以采用通用的,独立于云平台的成本模型,多查询优化,成本计算和/或操作员放置技术,以便监视和解释查询成本降低到操作者级别。 某些实施例可以在创建时近似实时地监视成本。 实施例可以独立于底层复杂事件处理系统和底层云平台。 实施例可以优化基于云的系统的工作计划,以最小化最终用户的成本,匹配底层云平台的成本模型。

    FAULT TOLERANCE BASED QUERY EXECUTION
    6.
    发明申请
    FAULT TOLERANCE BASED QUERY EXECUTION 有权
    基于公差的查询执行

    公开(公告)号:US20130144866A1

    公开(公告)日:2013-06-06

    申请号:US13311596

    申请日:2011-12-06

    IPC分类号: G06F17/30

    CPC分类号: G06F11/2035 G06F17/30477

    摘要: Various embodiments of systems and methods for a fault tolerance based query execution are described herein. Queries are received from users, the queries including operators. A multi-query optimization is performed on the operators included in the queries to obtain a query plan. A fault tolerance degree is determined for the operators included in the query plan. Based on the fault tolerance degree of the operators, nodes are assigned to the operators included in the query plan. The assigned nodes execute the operators included in the query plan to execute the queries. In one aspect, the nodes simultaneously execute the operators included in the query plan.

    摘要翻译: 本文描述了用于基于容错的查询执行的系统和方法的各种实施例。 来自用户的查询,包括运算符在内的查询。 对查询中包含的运算符执行多查询优化,以获取查询计划。 确定查询计划中包含的运营商的容错度。 根据运营商的容错度,将节点分配给查询计划中包含的运营商。 分配的节点执行查询计划中包含的运算符以执行查询。 在一个方面,节点同时执行查询计划中包括的运算符。

    Method for cleaning exhaust gas with trimming control
    9.
    发明授权
    Method for cleaning exhaust gas with trimming control 失效
    用微调控制方式清除废气

    公开(公告)号:US06378295B1

    公开(公告)日:2002-04-30

    申请号:US09699839

    申请日:2000-10-30

    申请人: Thomas Heinze

    发明人: Thomas Heinze

    IPC分类号: F01N300

    摘要: A method for controlling exhaust gas of an internal combustion engine includes controlling operation of the engine to fluctuate a lambda value of a raw exhaust gas at the lambda probe, exhibiting two-step action and disposed upstream of a three-way catalytic converter located in an exhaust tract, about a predetermined mean value. In a trimming controller, a concentration of an exhaust gas component downstream of the converter is measured with an amperometric-measuring sensor made from a solid-state electrolyte. In the sensor's first measuring cell, an oxygen concentration is measured through a first Nernst voltage between a first electrode and a reference electrode exposed to ambient air, and is controlled by a first oxygen-ion pumping current between the first electrode and an outer electrode of the sensor. In the second measuring cell of the sensor, the oxygen concentration is measured through a second Nernst voltage between the second and reference electrodes. A voltage is tapped between the outer and reference electrodes in conjunction with a series connection of the first and second measuring cells, and the voltage is used as a signal, dependent on the oxygen concentration and indicating two-step action, for trimming control. The predetermined mean values are corrected in dependence on the measured concentration of the exhaust gas component downstream of the converter. Preferably, the sensor is a NOx-measuring sensor, and, in its second measuring cell, the oxygen concentration in the second measuring cell is controlled through a second oxygen-ion pumping current.

    摘要翻译: 一种用于控制内燃机排气的方法,包括控制发动机的运转,以使λ探针处的原始废气的λ值波动,呈现两步动作,并设置在位于 排气道,约为预定的平均值。 在修整控制器中,利用由固态电解质制成的电流计测量传感器来测量转换器下游的排气组分的浓度。 在传感器的第一测量单元中,通过暴露于环境空气的第一电极和参考电极之间的第一能斯特电压来测量氧浓度,并且通过第一电极和外部电极之间的第一氧离子泵浦电流 传感器。 在传感器的第二测量单元中,通过第二参考电极和参考电极之间的第二能斯特电压来测量氧浓度。 结合第一和​​第二测量单元的串联连接,在外电极和参考电极之间分接电压,并且根据氧浓度将电压用作信号,并指示用于修整控制的两步动作。 根据测量的转换器下游排气组分的浓度校正预定的平均值。 优选地,传感器是NOx测量传感器,并且在其第二测量单元中,通过第二氧离子泵浦电流来控制第二测量单元中的氧浓度。

    Homogeneous synthesis of cellulose ethers in ionic liquids
    10.
    发明申请
    Homogeneous synthesis of cellulose ethers in ionic liquids 有权
    离子液体中纤维素醚的均相合成

    公开(公告)号:US20090221813A1

    公开(公告)日:2009-09-03

    申请号:US12392222

    申请日:2009-02-25

    IPC分类号: C08B11/20

    摘要: The invention is directed to a simple and new method for the homogeneous synthesis of cellulose ethers. Ionic liquids are not only used as solvent, but also as reaction media for the homogeneous etherification of cellulose. The dissolved cellulose is treated with the etherification agent in the absence of organic and/or inorganic bases and in the absence and/or in the presence of moderate amounts of water. The obtained cellulose ethers show new distributions of substitution on the polymer chain, resulting in new properties and applications.

    摘要翻译: 本发明涉及用于纤维素醚的均相合成的简单且新的方法。 离子液体不仅用作溶剂,而且用作纤维素均匀醚化的反应介质。 溶解的纤维素在不存在有机和/或无机碱的条件下,在不存在和/或存在中等量的水的情况下用醚化剂处理。 所获得的纤维素醚在聚合物链上显示出新的取代分布,导致新的性质和应用。