摘要:
A method for inferring network link topology includes receiving an address of a seed node in a network, initializing a set of links and monitors of the network, refining, iteratively beginning at the seed node, the set of links and monitors of the network, wherein a local topology of links is inferred from routing information of a current node and a remote topology of links is inferred from routing information of the set of monitors, wherein the set of monitors is created from the local topology of links, and outputting the topology of links including the local and remote topology of links as a topology of the network.
摘要:
A method of determining the state of network links based on differences in corresponding distance-vectors in a sequence routing table updates, and a network management system performing the method. The network management system comprises least one monitoring apparatus adapted to determine the state of network links. The monitoring apparatus may be a router in the network adapted to determine link status, or a personal computer or server peered with a router and configured to determine the state of network links based on differences in corresponding distance-vectors in a sequence of routing table updates.
摘要:
A method and system for detecting and correcting invalid network paths in a network having a plurality of routers and a set of global invariant rules imbedded in the network including querying a subset of a routing table data structure defining network paths wherein said subset includes a plurality of routing table entries and comparing a network routing table entry with an earlier network routing table entry for the same node. The method and system also includes detecting inconsistencies between the newer network routing table entry and the earlier network routing table entry, and invalidating the network entries of the older network routing table that are inconsistent with the newer entries. The method and system also includes reconstructing the routing structure by replacing the invalidated network routing table entries with new routing table entries that minimize violation of the invariant protocols.
摘要:
System, method and computer program product for modelling information sharing domains as Partially Observable Markov Decision Processes (POMDP), and that provides solutions that view the information sharing as a sequential process where the trustworthiness of the information recipients is monitored using data leakage detection mechanisms. In one embodiment, the system, method and computer program product performs (i) formulating information sharing decisions using Partially Observable Markov Decision Processes combined with a digital watermarking leakage detection mechanism, and (ii) deriving optimal information sharing strategies for the sender and optimal information leakage strategies for a recipient as a function of the efficacy of the underlying monitoring mechanism. By employing POMDPs in information sharing domains, users (senders) can maximize the expected reward of their data/information sharing actions.
摘要:
A method, system and computer program product are disclosed for providing content to a communications device. In an embodiment of the invention, a communications network receives a first content portion from a content provider and sends the first content portion to the communications device. The communications network also sends a second content portion to the communications device, and this second content portion is customized for the user of the communications device based on selected information about the user that the communications network has. In one embodiment, the communications network uses the selected information about the user to customize the second content portion for the user, and sends the customized second content portion to the communications device. In an embodiment, the communications network sends the selected information to the content provider, and the content provider uses the selected information to customize the second content portion.
摘要:
A method, system and computer program product for creating a customized message in a video-on-demand service, in which a user accesses the service using a communications device. In an embodiment, the method comprises using a video-on-demand server to intercept the access by the user of the video-on-demand service, obtain information about video content of a local cache of the video-on-demand service, obtain a profile of the user, and identify a context of the user. A customized message is constructed for the communications device based on the information about the local cache, the profile of the user, and the context of the user. The video-on-demand server sends the customized message to the communications device. In one embodiment, the user accesses the video-on-demand service through an edge base station of a core network, and the video-on-demand server is in this base station of the core network.
摘要:
A method, system and computer program product for disseminating information to mobile communication devices from a content provider via a core network. In an embodiment, the content provider sends specified information to the core network, and the content provider sends an information dissemination policy and a time release policy to the core network. The core network determines a time distribution plan for disseminating the specified information, and disseminates the specified information to one or more of the mobile communication devices in accordance with the dissemination policy from the content provider and the time distribution plan. The core network enables the one or more of the mobile devices to release the specified information to a user or users of the one or more of the mobile devices in accordance with the time release policy from the content provider.
摘要:
System, method and computer program product for modelling information sharing domains as Partially Observable Markov Decision Processes (POMDP), and that provides solutions that view the information sharing as a sequential process where the trustworthiness of the information recipients is monitored using data leakage detection mechanisms. In one embodiment, the system, method and computer program product performs (i) formulating information sharing decisions using Partially Observable Markov Decision Processes combined with a digital watermarking leakage detection mechanism, and (ii) deriving optimal information sharing strategies for the sender and optimal information leakage strategies for a recipient as a function of the efficacy of the underlying monitoring mechanism. By employing POMDPs in information sharing domains, users (senders) can maximize the expected reward of their data/information sharing actions.
摘要:
A method for inferring network link topology includes receiving an address of a seed node in a network, initializing a set of links and monitors of the network, refining, iteratively beginning at the seed node, the set of links and monitors of the network, wherein a local topology of links is inferred from routing information of a current node and a remote topology of links is inferred from routing information of the set of monitors, wherein the set of monitors is created from the local topology of links, and outputting the topology of links including the local and remote topology of links as a topology of the network.
摘要:
One embodiment of the present method and apparatus for performance and policy analysis in distributed computing systems includes representing a distributed computing system as a state transition model. A queuing network is then superimposed upon the state transition model, and the effects of one or more policies on the distributed computing system performance are identified in accordance with a solution to the queuing network.