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1. 发明申请

WO2009005594A2 METHOD AND APPARATUS FOR EFFICIENT AGGREGATE COMPUTATION OVER DATA STREAMS 审中-公开
标题翻译：数据流中有效汇总计算的方法与装置
公开(公告)号：WO2009005594A2
公开(公告)日：2009-01-08
申请号：PCT/US2008/007575
申请日：2008-06-18
申请人： LUCENT TECHNOLOGIES INC. , C N, Kanthi , K V M, Naidu , RASTOGI, Rajeev , SATKIN, Scott
发明人： C N, Kanthi , K V M, Naidu , RASTOGI, Rajeev , SATKIN, Scott
IPC分类号： G06F17/30
CPC分类号： G06F17/30463 , G06F17/30412 , G06F17/30454 , G06F17/30548 , G06F17/30864
摘要： Improved techniques are disclosed for processing data stream queries wherein a data stream is obtained, a set of aggregate queries to be executed on the data stream is obtained, and a query plan for executing the set of aggregate queries on the data stream is generated. In a first method, the generated query plan includes generating at least one intermediate aggregate query, wherein the intermediate aggregate query combines a subset of aggregate queries from the set of aggregate queries so as to pre-aggregate data from the data stream prior to execution of the subset of aggregate queries such that the generated query plan is optimized for computational expense based on a given cost model. In a second method, the generated query plan includes identifying similar filters in two or more aggregate queries of the set of aggregate queries and combining the similar filters into a single filter such that the single filter is usable to pre-filter data input to the two or more aggregate queries.
摘要翻译：公开了用于处理数据流查询的改进技术，其中获得数据流，获得要在数据流上执行的一组聚合查询，并且生成用于在数据流上执行聚合查询集合的查询计划。在第一种方法中，生成的查询计划包括生成至少一个中间聚合查询，其中中间聚合查询组合来自聚合查询集合的聚合查询的子集，以便在执行之前从数据流预聚合数据聚合查询的子集，使得生成的查询计划基于给定的成本模型被优化用于计算开销。在第二种方法中，所生成的查询计划包括在集合查询集合的两个或多个聚合查询中识别类似的过滤器，并将类似的过滤器组合成单个过滤器，使得单个过滤器可用于预先过滤输入到两个或更多聚合查询。

2. 发明申请

WO2008153840A3 EFFICIENT CONSTRAINT MONITORING USING ADAPTIVE THRESHOLDS 审中-公开
公开(公告)号：WO2008153840A3
公开(公告)日：2008-12-18
申请号：PCT/US2008/006878
申请日：2008-05-30
申请人： LUCENT TECHNOLOGIES INC. , KASHYAP, Srinivas, Raghav , RASTOGI, Rajeev , S R, Jeyashankher , SHUKLA, Pushpraj
发明人： KASHYAP, Srinivas, Raghav , RASTOGI, Rajeev , S R, Jeyashankher , SHUKLA, Pushpraj
IPC分类号： H04L12/26 , H04L29/06
摘要： Methods for tracking anomalous behavior in a network referred to as non-zero slack schemes are provided. The non-zero slack schemes reduce the number of communication messages in the network necessary to monitor emerging large-scale, distributed systems using distributed computation algorithms by generating more optimal local constraints for each remote site in the system. The number of communication messages is reduced by generating local constraints based on probabilities and system costs associated with local alarm transmissions by the remote sites and a global poll in the network.

3. 发明申请

WO2009107144A1 A METHOD AND SYSTEM FOR CHANNEL ASSIGNMENT IN RURAL WIRELESS MESH NETWORKS 审中-公开
标题翻译：农村无线网络中的信道分配方法与系统
公开(公告)号：WO2009107144A1
公开(公告)日：2009-09-03
申请号：PCT/IN2008/000116
申请日：2008-02-29
申请人： LUCENT TECHNOLOGIES INC , DUTTA, Partha , JAISWAL, Sharad , PANIGRAHI, Debmalya , RASTOGI, Rajeev
发明人： DUTTA, Partha , JAISWAL, Sharad , PANIGRAHI, Debmalya , RASTOGI, Rajeev
IPC分类号： H04W16/10 , H04L12/56
CPC分类号： H04W16/10 , H04W4/08 , H04W72/082 , H04W84/12 , H04W84/18 , H04W92/20
摘要： A method and system for allocating channels in a rural mesh networking so that maximum number of links can operate on full-duplex mode without interfering with each other. The present invention considers any link in the network graph to consist of two directed edges to which a non-interfering channel is assigned in such a manner that at any node the set of channels on the outgoing directed edges is different from the incoming edges. The system uses IEEE 802.11b radio equipments and directional antennas.
摘要翻译：一种用于在农村网状网络中分配信道的方法和系统，使得最大数量的链路可以在全双工模式下操作而不会彼此干扰。本发明考虑网络图中的任何链路由两个有向边缘组成，其中以这样的方式分配非干扰信道，即在任何节点处，输出有向边缘上的信道集合不同于进入边缘。该系统采用IEEE 802.11b无线电设备和定向天线。

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