公开(公告)号：GB2508631A

公开(公告)日：2014-06-11

申请号：GB201221940

申请日：2012-12-06

Applicant: IBM

Inventor： BENT GRAHAM ANTHONY ,  BERMAN THOMAS JAMES CHRISTOPHER ,  DANTRESSANGLE PATRICK ,  VYVYAN DAVID ROBNETT

IPC: G06F17/30 ,  H04L45/02

Abstract: A query is propagated from a querying node to a destination node in a network of connected nodes. At least one of the nodes is designated as a delay node. The query is transmitted 4.1 from the querying node to one or more connected nodes. Each node which receives the query retransmits the query 4.4 to a connected node the first time that the query is received. The receiving and retransmitting of the query is repeated for each node receiving the query until the query is received at the destination node 4.5. At each node which is designated as a delay node a delay is applied 4.3 prior to retransmitting. The network may be a federated database made up of a number of interconnected databases and the delay nodes may be non-trusted nodes.

公开(公告)号：GB2510429A

公开(公告)日：2014-08-06

申请号：GB201302027

申请日：2013-02-05

Applicant: IBM

Inventor： BERMAN THOMAS JAMES CHRISTOPHER ,  BENT GRAHAM ANTHONY ,  VYVYAN DAVID ROBNETT ,  DANTRESSANGLE PATRICK

IPC: H04L45/74

Abstract: Method and system are provided for assessing response routes in a network of connected nodes wherein a querying node propagates a query through multiple routes of intermediate nodes to a data source node and the data source node returns data to the querying node. The method at a data source node includes: receiving a query instance including metadata with route information of the route of intermediate nodes in the network that the query instance has travelled through from a querying node to the data source node; comparing the route information to a route policy, e.g. whether the intermediate nodes are trusted; and responding to a query instance which meets the route policy by returning the query response via the route of intermediate nodes of the query instance.