公开(公告)号：US08612180B2

公开(公告)日：2013-12-17

申请号：US12717694

申请日：2010-03-04

申请人： Jianfeng Yan ,  Wen-Syan Li

发明人： Jianfeng Yan ,  Wen-Syan Li

IPC分类号： G06F9/28

CPC分类号： G06F9/5066 ,  G06F11/3404 ,  G06F11/3419 ,  G06F2201/88 ,  G06F2209/508

摘要： A first performance measurement of an executing task may be determined, while the task is executed by a first number of nodes operating in parallel. A second performance measurement of the executing task may be determined, while the task is being executed by a second number of nodes operating in parallel. An overhead factor characterizing a change of a parallelism overhead of executing the task with nodes executing in parallel may then be calculated, relative to a change in a number of the nodes, based on the first performance measurement and the second performance measurement. Then, an optimal number of nodes to operate in parallel to continue executing the task may be determined, based on the overhead factor.

摘要翻译： 可以确定执行任务的第一性能测量，而任务由并行操作的第一数量的节点执行。 可以确定执行任务的第二性能测量，而任务正由并行操作的第二数量的节点执行。 然后可以基于第一性能测量和第二性能测量来相对于节点数量的改变来计算表征并行执行的节点执行任务的并行性开销变化的开销因素。 然后，可以基于开销因素来确定并行操作以继续执行任务的最佳数量的节点。

公开(公告)号：US20130066455A1

公开(公告)日：2013-03-14

申请号：US13229199

申请日：2011-09-09

申请人： Wen-Syan Li ,  Heng Wang ,  Gufei Sun

发明人： Wen-Syan Li ,  Heng Wang ,  Gufei Sun

IPC分类号： G06F19/00 ,  G06N3/12

CPC分类号： G06Q10/087

摘要： A schedule manager may include a chromosome comparator configured to compare a plurality of schedule chromosomes, each schedule chromosome including a potential schedule of use of manufacturing resources within one or more time intervals in producing one or more items, and configured to compare each of the plurality of schedule chromosomes relative to constraints, to thereby output a selected subset of the plurality of schedule chromosomes. The schedule manager may include a chromosome combiner configured to combine schedule chromosomes of the selected subset to obtain a next generation of schedule chromosomes for output to the chromosome comparator and for subsequent comparison therewith of the next generation of schedule chromosomes with respect to the constraints, as part of an evolutionary loop of the plurality of schedule chromosomes between the chromosome comparator and the chromosome combiner, and a scheduler configured to select a selected schedule chromosome therefrom.

摘要翻译： 调度管理器可以包括被配置为比较多个调度染色体的染色体比较器，每个调度染色体包括在生成一个或多个项目的一个或多个时间间隔内使用制造资源的潜在时间表，并且被配置为比较多个 相对于约束调度染色体，从而输出多个调度染色体的选定子集。 调度管理器可以包括染色体组合器，其被配置为组合所选子集的调度染色体以获得用于输出到染色体比较器的下一代调度染色体，并且用于随后与下一代相关的约束进行比较，作为 在染色体比较器和染色体组合器之间的多个调度染色体的进化环的一部分，以及被配置为从其选择所选择的调度染色体的调度器。

公开(公告)号：US07890496B2

公开(公告)日：2011-02-15

申请号：US12100651

申请日：2008-04-10

申请人： Wen-Syan Li ,  Inderpal S. Narang

发明人： Wen-Syan Li ,  Inderpal S. Narang

IPC分类号： G06F7/00

CPC分类号： G06F17/30967 ,  Y10S707/99932

摘要： Disclosed are embodiments of a system for optimizing query processing in a federated information system. The system may be used to identify alternative query plans in a simulated environment and to calculate cost estimates associated with the alternative query plans, based not only on database statistics and query statements, but also based on workload and processing latencies associated with specific data source and with the federated information system as a whole. In addition the calculated cost estimates may also factor in data source availability and reliability. The system may use the alternative query plans and the associated cost estimates to influence query processing in a federated information system by feeding to the federated information system query plans that allow for cost-efficient query plan-level load distribution, cost-efficient query fragment plan-level load distribution, and load distribution based upon quality of service cost constraints.

摘要翻译： 公开了用于在联合信息系统中优化查询处理的系统的实施例。 该系统可以用于在模拟环境中识别替代查询计划，并且不仅基于数据库统计信息和查询语句，而且还基于与特定数据源相关联的工作负载和处理延迟来计算与替代查询计划相关联的成本估计，以及 联合信息系统作为一个整体。 此外，计算的成本估算也可能导致数据源的可用性和可靠性。 系统可以使用替代查询计划和相关联的成本估计来影响联合信息系统中的查询处理，通过馈送到联合信息系统查询计划，允许具有成本效益的查询计划级负载分布，成本效益的查询分段计划 - 基于服务质量成本限制的负载分布和负载分配。

公开(公告)号：US07689538B2

公开(公告)日：2010-03-30

申请号：US11340203

申请日：2006-01-26

申请人： Wen-Syan Li ,  Daniele C. Zilio

发明人： Wen-Syan Li ,  Daniele C. Zilio

IPC分类号： G06F7/00 ,  G06F17/30

CPC分类号： G06F17/30457 ,  Y10S707/99932

摘要： A system and method of evaluating queries in distributed databases with MQTs comprises deriving MQTs; replicating the derived MQTs from a local server to at least one remote server; and distributing data and replicated derived MQTs to a plurality of other remote servers, wherein the distributing increases overall query execution efficiency. The databases may comprise heterogeneous databases. The query execution efficiency comprises observed response time at a frontend database and associated costs comprising computational central processing unit costs, input/output costs, and network communication costs. All of the associated costs comprise statistically estimated costs. The method further comprises running a MQT advisor at a frontend database, and considering the costs of at least one MQT placed at the frontend database. The method further comprises running a MQT advisor at a non-frontend database. Additionally, the increased overall query execution efficiency may consider all dependencies of all involved database instances and associated costs.

摘要翻译： 使用MQT对分布式数据库中的查询进行评估的系统和方法包括导出MQT; 将派生的MQT从本地服务器复制到至少一个远程服务器; 以及将数据和复制的导出MQT分发到多个其他远程服务器，其中所述分发增加了整体查询执行效率。 数据库可以包括异构数据库。 查询执行效率包括在前端数据库处的观察到的响应时间和包括计算中央处理单元成本，输入/输出成本和网络通信成本的相关费用。 所有相关成本包括统计估计成本。 该方法还包括在前端数据库上运行MQT顾问，并考虑放置在前端数据库中的至少一个MQT的成本。 该方法还包括在非前端数据库上运行MQT顾问。 此外，增加的整体查询执行效率可以考虑所有相关数据库实例和相关成本的所有依赖关系。

公开(公告)号：US20050198309A1

公开(公告)日：2005-09-08

申请号：US11053279

申请日：2005-02-07

申请人： Wen-Syan Li ,  Kunihiro Taniguchi ,  Atsuhiro Tanaka

发明人： Wen-Syan Li ,  Kunihiro Taniguchi ,  Atsuhiro Tanaka

IPC分类号： G06F12/00 ,  G06F13/00 ,  G06F15/00 ,  G06F15/16 ,  G06F15/173 ,  H04L12/54 ,  H04L12/56 ,  H04L12/58 ,  H04L29/08

CPC分类号： H04L67/2847 ,  H04L67/02 ,  H04L67/2814 ,  H04L67/2828

摘要： A Web content fetch and delivery system is disclosed. The system comprises a proxy server configured for receiving requests for content from requesting end user browsers and fetching the content from content provider servers over at least one communication network. The proxy server is programmed for maintaining a log of all content fetched including a time of the fetch and the requesting end user browser, and storing associations between content fetched within a fixed time period by the same requesting end user browser. When subsequent requests for particular content are received by the proxy server, the proxy server will pre-fetch all content associated with that particular requested content.

公开(公告)号：US20050192995A1

公开(公告)日：2005-09-01

申请号：US11121825

申请日：2005-05-04

申请人： Wen-Syan Li ,  Kasim Candan ,  Divyakant Agrawal

发明人： Wen-Syan Li ,  Kasim Candan ,  Divyakant Agrawal

IPC分类号： G06F17/30 ,  G06F17/00

CPC分类号： G06F17/3056 ,  G06F17/30345 ,  G06F17/30368 ,  Y10S707/959 ,  Y10S707/99932 ,  Y10S707/99952 ,  Y10S707/99954

摘要： Various systems and methods are describe for determining dynamically generated content to be invalidated as a result of changes to underlying data. In one method, invalidation processing is performed using a delayed version of the database that reflects the state of the database at the beginning of a preceding processing cycle, and an update log that reflects all updates since the beginning of the preceding processing cycle. In another method, invalidation processing is performed by locking a database which is locked during processing so as to reflect the state of the database at the beginning of processing, and an update log that reflects all updates to the database since the beginning of the preceding processing cycle. In another method, invalidation processing uses the database while it is freely updated during said processing, and the update log of the database.

摘要翻译： 描述了各种系统和方法，用于确定由于底层数据的更改导致的无效的动态生成内容。 在一种方法中，使用在前一处理周期开始时反映数据库的状态的数据库的延迟版本执行无效处理，以及从上一个处理周期开始以来反映所有更新的更新日志。 在另一种方法中，通过锁定在处理期间被锁定的数据库来执行无效处理，以便在处理开始时反映数据库的状态，以及从上一个处理开始以来反映到数据库的所有更新的更新日志 周期。 在另一种方法中，无效处理在所述处理期间自由更新数据库以及数据库的更新日志时使用该数据库。

公开(公告)号：US09659600B2

公开(公告)日：2017-05-23

申请号：US14328522

申请日：2014-07-10

申请人： Heng Wang ,  Gufei Sun ,  Wen-Syan Li

发明人： Heng Wang ,  Gufei Sun ,  Wen-Syan Li

IPC分类号： G06F17/30 ,  G11C5/04 ,  G06F13/42 ,  G11C5/06 ,  G11C14/00

CPC分类号： G11C5/04 ,  G06F13/4282 ,  G06F17/30867 ,  G06F2213/0032 ,  G11C5/06 ,  G11C14/0018

摘要： A classifier may be used to receive, via a website, user input associated with a product search of a user, and may be further used to identify a plurality of filters associated with the product search and predict a user-specific subset of the plurality of filters. Then, a filter manager may be used to provide a webpage of the website to the user, based on the user-specific filter subset.

公开(公告)号：US20160275425A1

公开(公告)日：2016-09-22

申请号：US14663697

申请日：2015-03-20

申请人： Boyi Ni ,  Bilei Zhu ,  Yu Cheng ,  Wen-Syan Li

发明人： Boyi Ni ,  Bilei Zhu ,  Yu Cheng ,  Wen-Syan Li

IPC分类号： G06Q10/06 ,  G06Q10/08

CPC分类号： G06Q10/06312 ,  G06Q10/083

摘要： Methods, systems, and computer-readable storage media for event-triggered reassignment of time-limited resources. Implementations include actions of receiving an event indicator, determining a particular demand and associated particular time-limited resources based on the event indicator, identifying, for the particular demand, one or more first candidate demands in an assignment plan, the assignment plan including a plurality of demands associated with a plurality of time-limited resources, each first candidate demand and associated time-limited resources satisfying one or more constraints defined by the particular demand and associated particular time-limited resources, determining whether at least one of the first candidate demands has not been processed, and performing an action based on a result of determining whether at least one of the first candidate demands has not been processed.

摘要翻译： 方法，系统和计算机可读存储介质，用于事件触发的时间限制资源重新分配。 实现包括接收事件指示符的动作，基于事件指示器确定特定需求和相关联的特定时间限制资源，针对特定需求，为分配计划中的一个或多个第一候选请求识别，分配计划包括多个 与多个时间有限的资源相关联的需求，每个第一候选需求和相关联的时间有限的资源满足由特定需求和相关联的特定时间有限的资源所定义的一个或多个约束;确定第一候选需求中的至少一个 还没有被处理，并且基于确定是否还没有处理了第一候选请求中的至少一个的结果来执行动作。

公开(公告)号：US09288285B2

公开(公告)日：2016-03-15

申请号：US14055565

申请日：2013-10-16

申请人： Wen-Syan Li ,  Heng Wang ,  Gufei Sun

发明人： Wen-Syan Li ,  Heng Wang ,  Gufei Sun

IPC分类号： G06F15/16 ,  H04L29/06 ,  H04L29/08 ,  G06F17/30 ,  G06Q20/00 ,  G06F7/00

CPC分类号： H04L67/42 ,  G06F17/30861 ,  H04L63/0428 ,  H04L67/306

摘要： Techniques for recommending content to a user include identifying classified public content stored on a server appliance or a repository; identifying private content of a user stored on a client appliance or a repository, the client appliance communicably coupled to the server appliance through a network; receiving, from the user, a request for a recommendation of content; generating a representative query based on the request for the recommendation of content; determining, based on the representative query, a portion of the classified public content stored on a server appliance or the repository; determining, based on the request, a portion of the private content stored on the client appliance or the repository; and preparing, for presentation to the user, the portion of the classified public content based on the representative query and the portion of the private content based on the request for the recommendation of content.

摘要翻译： 用于向用户推荐内容的技术包括识别存储在服务器设备或存储库上的分类的公共内容; 识别存储在客户端设备或存储库上的用户的私人内容，所述客户端设备通过网络可通信地耦合到所述服务器设备; 从用户接收对内容推荐的请求; 根据对内容推荐的请求生成代表性查询; 基于代表性查询确定存储在服务器设备或存储库上的分类的公共内容的一部分; 基于所述请求确定存储在所述客户端设备或所述存储库上的所述私人内容的一部分; 以及基于所述内容的推荐请求，基于所述代表性查询和所述私人内容的所述部分来准备所述分类的公共内容的一部分。

公开(公告)号：US20160012108A1

公开(公告)日：2016-01-14

申请号：US14328508

申请日：2014-07-10

申请人： Leo Hu ,  Yuan Fang ,  Yun Jin ,  Wen-Syan Li

发明人： Leo Hu ,  Yuan Fang ,  Yun Jin ,  Wen-Syan Li

IPC分类号： G06F17/30

CPC分类号： G06F17/30445 ,  G06F17/30442 ,  G06F17/3048

摘要： A query analyzer may be used to identify a plurality of queries and associated query characteristics, the query characteristics including a corresponding dataset of data units for each query, wherein the data units are to be loaded from an offline memory into a memory of an in-memory database. Then, a sequencer may be used to select a selected dataset for loading into the memory of the in-memory database, based on dependencies between the plurality of queries as included within the query characteristics, and on relationships, if any, between the datasets.

摘要翻译： 查询分析器可以用于识别多个查询和相关联的查询特征，查询特征包括用于每个查询的数据单元的相应数据集，其中数据单元将从脱机存储器加载到内部存储器的存储器中， 内存数据库。 然后，定序器可以用于基于包括在查询特性之内的多个查询之间的依赖关系以及数据集之间的关系（如果有的话），来选择用于加载到内存数据库的存储器中的所选择的数据集。