专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

81. 发明授权

US08112415B1 Optimized field unpacking for a data stream management system 有权
标题翻译：针对数据流管理系统优化现场拆包
公开(公告)号：US08112415B1
公开(公告)日：2012-02-07
申请号：US12132690
申请日：2008-06-04
申请人： Theodore Johnson , Lukasz Golab , Oliver Spatscheck
发明人： Theodore Johnson , Lukasz Golab , Oliver Spatscheck
IPC分类号： G06F17/30 , G06F7/00
CPC分类号： G06F17/30516
摘要： Two methods and computer-readable medium for obtaining information using field group unpacking functions. The first method obtains information using field group unpacking functions by identifying an optimized unpacking function from field group unpacking functions, and an optimized unpacking function is used to unpack a field associated with the data stream. The second method obtains information using field group unpacking functions by identifying an optimized unpacking function from the field group unpacking functions. Then, a prefilter is applied and associated with the optimized unpacking functions and used to unpack a field associated with the data stream. The computer-readable medium obtains field group unpacking functions for execution by a computing device using field group unpacking functions that identify an optimized unpacking function from the field group unpacking functions, and use an optimized unpacking function to unpack a field associated with the data stream.
摘要翻译：两种方法和计算机可读介质，用于使用现场组解包功能获取信息。第一种方法通过使用现场组解包功能来识别优化的拆包功能，通过字段组解包功能获得信息，并且使用优化的解包功能来解压缩与数据流相关联的字段。第二种方法是通过使用现场组解包功能来识别来自现场组解包功能的优化解包功能来获取信息。然后，应用预过滤器并将其与优化的拆包功能相关联，并用于解包与数据流相关联的字段。计算机可读介质获得用于由计算设备执行的字段组解包功能，使用从字段组解包功能识别优化的解包功能的字段组解包功能，并使用优化的解包功能来解包与数据流相关联的字段。

82. 发明授权

US08108394B2 Query-aware sampling of data streams 有权
标题翻译：数据流的查询感知采样
公开(公告)号：US08108394B2
公开(公告)日：2012-01-31
申请号：US12414578
申请日：2009-03-30
申请人： Theodore Johnson , Shanmugavelayutham Muthukrishnan , Oliver Spatscheck , Vladislav Shkapenyuk
发明人： Theodore Johnson , Shanmugavelayutham Muthukrishnan , Oliver Spatscheck , Vladislav Shkapenyuk
IPC分类号： G06F7/00 , G06F17/30
CPC分类号： H04L43/022 , Y10S707/99943
摘要： A system, method and computer-readable medium provide for assigning sampling methods to each input stream for arbitrary query sets in a data stream management system. The method embodiment comprises splitting all query nodes in a query directed acyclic graph (DAG) having multiple parent nodes into sets of independent nodes having a single parent, computing a grouping set for every node in each set of independent nodes, reconciling each parent node with each child node in each set of independent node, reconciling between multiple child nodes that share a parent node and generating a final grouping set for at least one node describing how to sample an input stream for that node.
摘要翻译：系统，方法和计算机可读介质提供对数据流管理系统中的任意查询集的每个输入流分配采样方法。方法实施例包括将具有多个父节点的查询定向非循环图（DAG）中的所有查询节点分割成具有单个父节点的独立节点集合，为每个独立节点集合中的每个节点计算分组集，将每个父节点与每个独立节点集合中的每个子节点，在共享父节点的多个子节点之间协调并且为至少一个节点生成描述如何对该节点的输入流进行采样的最终分组集。

83. 发明授权

US08031599B2 Statistical, signature-based approach to IP traffic classification 失效
标题翻译：统计，基于签名的IP流量分类方法
公开(公告)号：US08031599B2
公开(公告)日：2011-10-04
申请号：US12635127
申请日：2009-12-10
申请人： Nicholas G. Duffield , Matthew Roughan , Subhabrata Sen , Oliver Spatscheck
发明人： Nicholas G. Duffield , Matthew Roughan , Subhabrata Sen , Oliver Spatscheck
IPC分类号： H04L12/28
CPC分类号： H04L41/5022 , H04L41/142
摘要： A signature-based traffic classification method maps traffic into preselected classes of service (CoS). By analyzing a known corpus of data that clearly belongs to identified ones of the preselected classes of service, in a training session the method develops statistics about a chosen set of traffic features. In an analysis session, relative to traffic of the network where QoS treatments are desired (target network), the method obtains statistical information relative to the same chosen set of features for values of one or more predetermined traffic attributes that are associated with connections that are analyzed in the analysis session, yielding a statistical features signature of each of the values of the one or more attributes. A classification process then establishes a mapping between values of the one or more predetermined traffic attributes and the preselected classes of service, leading to the establishment of QoS treatment rules.
摘要翻译：基于签名的流量分类方法将流量映射到预选的服务等级（CoS）。通过分析明确属于所选择的服务类别的已知数据库，在训练课程中，该方法开发关于所选择的一组交通特征的统计。在分析会话中，相对于期望QoS处理的网络的业务量（目标网络），该方法获得相对于与所连接的连接相关联的一个或多个预定业务属性的值的相同所选择的特征集的统计信息在分析会话中分析，产生一个或多个属性的每个值的统计特征签名。然后，分类过程建立一个或多个预定业务属性的值与预选的业务类别之间的映射，导致建立QoS处理规则。

84. 发明授权

US08001601B2 Method and apparatus for large-scale automated distributed denial of service attack detection 有权
标题翻译：用于大规模自动分布式拒绝服务攻击检测的方法和装置
公开(公告)号：US08001601B2
公开(公告)日：2011-08-16
申请号：US11452623
申请日：2006-06-14
申请人： Nicholas Duffield , Jacobus Van Der Merwe , Vyas Sekar , Oliver Spatscheck
发明人： Nicholas Duffield , Jacobus Van Der Merwe , Vyas Sekar , Oliver Spatscheck
IPC分类号： G06F11/00 , G06F12/14 , G06F12/16 , G08B23/00
CPC分类号： H04L63/1425 , H04L63/1458
摘要： A multi-staged framework for detecting and diagnosing Denial of Service attacks is disclosed in which a low-cost anomaly detection mechanism is first used to collect coarse data, such as may be obtained from Simple Network Management Protocol (SNMP) data flows. Such data is analyzed to detect volume anomalies that could possibly be indicative of a DDoS attack. If such an anomaly is suspected, incident reports are then generated and used to trigger the collection and analysis of fine grained data, such as that available in Netflow data flows. Both types of collection and analysis are illustratively conducted at edge routers within the service provider network that interface customers and customer networks to the service provider. Once records of the more detailed information have been retrieved, they are examined to determine whether the anomaly represents a distributed denial of service attack, at which point an alarm is generated.
摘要翻译：公开了一种用于检测和诊断拒绝服务攻击的多阶段框架，其中首先使用低成本异常检测机制来收集粗略数据，例如可以从简单网络管理协议（SNMP）数据流中获得。分析这些数据以检测可能表示DDoS攻击的体积异常。如果怀疑出现这种异常，则会生成事件报告，并用于触发对Netflow数据流中可用的细粒度数据的收集和分析。这两种类型的收集和分析在服务提供商网络中的边缘路由器上进行说明性地进行，其将客户和客户网络接入服务提供商。一旦检索到更详细信息的记录，就检查它们以确定异常是否表示分布式拒绝服务攻击，此时产生警报。

85. 发明授权

US07898955B1 System and method for real-time diagnosis of routing problems 有权
标题翻译：用于路由问题实时诊断的系统和方法
公开(公告)号：US07898955B1
公开(公告)日：2011-03-01
申请号：US11451261
申请日：2006-06-12
申请人： Jia Wang , Oliver Spatscheck , Lixin Gao , Feng Wang
发明人： Jia Wang , Oliver Spatscheck , Lixin Gao , Feng Wang
IPC分类号： G06F11/00 , H04L12/28 , H04L12/56
CPC分类号： H04L43/16 , H04L43/18 , H04L45/70
摘要： A system and method for detecting and diagnosing routing problems in a network in real-time by recording TCP flow information from at least one server to at least one prefix, and observing retransmission packets communicated from the at least one server to the at least one prefix. When a predetermined threshold for TCP flows to a prefix is reached, traceroutes may be triggered to a destination in the prefix, and the traceroutes analyzed to determine whether to issue an alarm for a routing failure. The system includes a real-time data collection engine for recording unidirectional TCP flow information, a real-time detection engine for observing the retransmission packets and issuing a warning upon a retransmission counter exceeding a predetermined threshold, and a real-time diagnosis engine for triggering at least one traceroute to a destination in the prefix that is randomly selected from TCP flows in retransmission states.
摘要翻译：一种用于通过将来自至少一个服务器的TCP流信息记录到至少一个前缀来实时检测和诊断网络中的路由问题的系统和方法，以及观察从所述至少一个服务器传送到所述至少一个前缀的重传分组。当达到TCP的预定阈值到达前缀时，可以将跟踪路由触发到前缀中的目的地，并且分析的跟踪路由以确定是否发布用于路由失败的报警。该系统包括用于记录单向TCP流信息的实时数据收集引擎，用于观察重传分组并在超过预定阈值的重传计数器上发出警告的实时检测引擎，以及用于触发的实时诊断引擎至少一个到重传状态中从TCP流中随机选择的前缀中的目的地的跟踪路由。

86. 发明授权

US07831711B2 Method and apparatus for packet analysis in a network 有权
标题翻译：网络中分组分析的方法和装置
公开(公告)号：US07831711B2
公开(公告)日：2010-11-09
申请号：US12287292
申请日：2008-10-08
申请人： Charles D. Cranor , Theodore Johnson , Oliver Spatscheck , Divesh Srivastava
发明人： Charles D. Cranor , Theodore Johnson , Oliver Spatscheck , Divesh Srivastava
IPC分类号： G06F15/173
CPC分类号： H04L43/00 , H04L43/106
摘要： A method and system for monitoring traffic in a data communication network and for extracting useful statistics and information is disclosed.
摘要翻译：公开了一种用于监视数据通信网络中的业务并提取有用统计信息的方法和系统。

87. 发明申请

US20100262683A1 Network Aware Forward Caching 有权
标题翻译：网络意识转发缓存
公开(公告)号：US20100262683A1
公开(公告)日：2010-10-14
申请号：US12423515
申请日：2009-04-14
申请人： Alexandre Gerber , Oliver Spatscheck , Dan Pei , Mohammad Taghi Hajiaghayi , Jeffery Erman
发明人： Alexandre Gerber , Oliver Spatscheck , Dan Pei , Mohammad Taghi Hajiaghayi , Jeffery Erman
IPC分类号： G06F15/16
CPC分类号： H04L67/2842 , H04L67/2852
摘要： An Internet service provider includes a cache server and a network aware server. The network aware server is operable to determine an optimization between a cost of retrieving content from a network and a cost of caching content from the network at the first cache server and then send a content identifier to the cache server. The cache server is operable to receive the content identifier, and determine the source of a content item. If the source is the same as the content identifier, then the cache server caches the content item.
摘要翻译：互联网服务提供商包括缓存服务器和网络感知服务器。网络感知服务器可操作以确定从网络检索内容的成本与从第一高速缓存服务器上的网络缓存内容的成本之间的优化，然后将内容标识符发送到缓存服务器。缓存服务器可操作以接收内容标识符，并确定内容项的来源。如果源与内容标识符相同，则缓存服务器缓存内容项。

88. 发明授权

US07773538B2 Estimating origin-destination flow entropy 有权
标题翻译：估算起点 - 目的地流熵
公开(公告)号：US07773538B2
公开(公告)日：2010-08-10
申请号：US12122295
申请日：2008-05-16
申请人： Jia Wang , Mitsunori Ogihara , Oliver Spatscheck , Ashwin Lall , Jun Xu , Haiquan Zhao
发明人： Jia Wang , Mitsunori Ogihara , Oliver Spatscheck , Ashwin Lall , Jun Xu , Haiquan Zhao
IPC分类号： H04L12/26
CPC分类号： H04L41/142
摘要： The preferred embodiments of the present invention are directed to estimating entropy of origin-destination (OD) data flows in a network. To achieve this, first and second sketches are created corresponding to ingress (i.e. origin) and egress (i.e. destination) flows. The sketches allow estimating entropy associated with data streams as well as entropy associated with an intersection of two or more of the data streams, which provides a mechanism for estimating the entropy OD flows in a network.
摘要翻译：本发明的优选实施例涉及估计网络中原始目的地（OD）数据流的熵。为了实现这一点，对应于入口（即源）和出口（即目的地）流创建第一和第二草图。草图允许估计与数据流相关联的熵以及与两个或更多个数据流的交点相关联的熵，其提供用于估计网络中的熵OD流的机制。

89. 发明申请

US20100042387A1 SYSTEM AND METHOD FOR USER BEHAVIOR MODELING 有权
标题翻译：用户行为建模的系统和方法
公开(公告)号：US20100042387A1
公开(公告)日：2010-02-18
申请号：US12192748
申请日：2008-08-15
申请人： David C. Gibbon , Andrea Basso , Oliver Spatscheck
发明人： David C. Gibbon , Andrea Basso , Oliver Spatscheck
IPC分类号： G06G7/60
CPC分类号： G06Q30/02
摘要： Disclosed herein are systems, methods, and computer readable-media for contextual adaptive advertising. The method for contextual adaptive advertising comprises tracking user behavior across multiple modalities or devices, storing one or more representations of user behavior in a log as descriptors, normalizing the descriptors, merging the normalized descriptors into a unified click or interactive stream, and generating a behavioral model by analyzing the click or interactive stream.
摘要翻译：本文公开了用于上下文自适应广告的系统，方法和计算机可读介质。用于上下文自适应广告的方法包括跨越多个模态或设备跟踪用户行为，将用户行为的一个或多个表示存储在日志中作为描述符，归一化描述符，将归一化描述符合并成统一点击或交互流，以及生成行为通过分析点击或交互式流模型。

90. 发明授权

US07660248B1 Statistical, signature-based approach to IP traffic classification 失效
标题翻译：统计，基于签名的IP流量分类方法
公开(公告)号：US07660248B1
公开(公告)日：2010-02-09
申请号：US10764001
申请日：2004-01-23
申请人： Nicholas G. Duffield , Matthew Roughan , Subhabrata Sen , Oliver Spatscheck
发明人： Nicholas G. Duffield , Matthew Roughan , Subhabrata Sen , Oliver Spatscheck
IPC分类号： H04L12/26
CPC分类号： H04L41/5022 , H04L41/142
摘要： A signature-based traffic classification method maps traffic into preselected classes of service (CoS). By analyzing a known corpus of data that clearly belongs to identified ones of the preselected classes of service, in a training session the method develops statistics about a chosen set of traffic features. In an analysis session, relative to traffic of the network where QoS treatments are desired (target network), the method obtains statistical information relative to the same chosen set of features for values of one or more predetermined traffic attributes that are associated with connections that are analyzed in the analysis session, yielding a statistical features signature of each of the values of the one or more attributes. A classification process then establishes a mapping between values of the one or more predetermined traffic attributes and the preselected classes of service, leading to the establishment of QoS treatment rules.
摘要翻译：基于签名的流量分类方法将流量映射到预选的服务等级（CoS）。通过分析明确属于所选择的服务类别的已知数据库，在训练课程中，该方法开发关于所选择的一组交通特征的统计。在分析会话中，相对于期望QoS处理的网络的业务量（目标网络），该方法获得相对于与所连接的连接相关联的一个或多个预定业务属性的值的相同所选择的特征集的统计信息在分析会话中分析，产生一个或多个属性的每个值的统计特征签名。然后，分类过程建立一个或多个预定业务属性的值与预选的业务类别之间的映射，导致建立QoS处理规则。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式