Abstract: A data management device manages personal data to which consent information indicating a data user authorized as a receiver has been added. The data management device includes: a cache memory and a processor. When personal data requested by a data user is stored in the cache memory, the processor acquires the requested personal data from the cache memory. When personal data requested by the data user is not stored in the cache memory, the processor acquires the requested personal data from a data holder. The processor decides based on consent information added to the personal data acquired whether to provide the personal data to the data user. When the data management device acquires new personal data from a data holder, the processor decides whether to store the new personal data in the cache memory based on consent information added to the new personal data.

Abstract: A non-transitory computer-readable recording medium storing a data management program for causing a data management device included in a plurality of data management devices to execute processing including: in a case where information regarding a new event is registered in a first storage that stores information capable of specifying a relation between events shared by the plurality of data management devices, specifying an event linked to the new event by tracing the relation between events based on the information stored in the first storage; and in a case where an event to be monitored is included in the specified events linked to the new event, setting, for an issuer of the new event, an access right to data related to the event to be monitored stored in a second storage managed by a local device.

Abstract: A data management device manages personal data to which consent information indicating a data user authorized as a receiver has been added. The data management device includes: a cache memory and a processor. When personal data requested by a data user is stored in the cache memory, the processor acquires the requested personal data from the cache memory. When personal data requested by the data user is not stored in the cache memory, the processor acquires the requested personal data from a data holder. The processor decides based on consent information added to the personal data acquired whether to provide the personal data to the data user. When the data management device acquires new personal data from a data holder, the processor decides whether to store the new personal data in the cache memory based on consent information added to the new personal data.

Abstract: An apparatus controls migration of a virtual machine between plural servers in a communication network. The apparatus acquires flow information by classifying, for each of virtual machines, pieces of data transmitted and received in each of the plural servers into flows having respective different destinations. The apparatus selects, based on the flow information, a migration target which is a virtual machine to be migrated from a first server whose number of virtual machines in operation is relatively large to a second server whose number of virtual machines in operation is relatively small, from among virtual machines in operation in the first server, by giving a higher priority to a virtual machine whose matching number of flows is larger, where the matching number of flows indicates a number of flows that are currently processed by both the virtual machine and the second server.

Abstract: An information processing system comprising a first computer, and a second computer configured to transmit a packet including an address of the first computer, wherein when the first computer is disconnected from a network that is for the second computer to communicate with the first computer, the second computer stops a transmission of the packet.

Abstract: An information processing method includes determining the number of packets to be transferred to a communication circuit for each of a plurality of communications so that the number of packets of each of the plurality of communications is equal to or greater than the number of packets to be used for communication analysis, in accordance with the communication amount of each of the plurality of communications and an upper limit of the transfer amount of packets to be transferred to the communication circuit.

Abstract: An apparatus controls migration of a virtual machine between plural servers in a communication network. The apparatus acquires flow information by classifying, for each of virtual machines, pieces of data transmitted and received in each of the plural servers into flows having respective different destinations. The apparatus selects, based on the flow information, a migration target which is a virtual machine to be migrated from a first server whose number of virtual machines in operation is relatively large to a second server whose number of virtual machines in operation is relatively small, from among virtual machines in operation in the first server, by giving a higher priority to a virtual machine whose matching number of flows is larger, where the matching number of flows indicates a number of flows that are currently processed by both the virtual machine and the second server.

Abstract: An apparatus includes a memory, and a processor coupled to the memory and configured to execute a process, the process including predicting a first time for transferring a packet as a predicted first time, where the predicting the first time is a prediction for transferring the packet from a second transfer circuit coupled to a second computer to a first communication circuit that transmits the packet to a network if a virtual machine is executed in the second computer, the virtual machine being executed in a first computer coupling to a first transfer circuit and generating the packet to be transmitted from a first transfer circuit to the first communication circuit through the second transfer circuit, and determining whether the virtual machine is to be executed by the second computer based on the predicted first time.

Abstract: An allocation unit allocates a path formed by combining a link between nodes to any one of a plurality of time slots. A slot rearrangement unit rearranges the plurality of time slots so that time slots to which a path is allocated by the allocation unit are consecutively arranged. A path rearrangement unit converts a path allocated to any one time slot rearranged by the slot rearrangement unit to a path formed by combining a link included in a path allocated to a time slot different from the time slot. A transmission unit transmits information of the path obtained by conversion performed by the path rearrangement unit.

Abstract: An information processing method includes determining the number of packets to be transferred to a communication circuit for each of a plurality of communications so that the number of packets of each of the plurality of communications is equal to or greater than the number of packets to be used for communication analysis, in accordance with the communication amount of each of the plurality of communications and an upper limit of the transfer amount of packets to be transferred to the communication circuit.

Abstract: A route allocation method including: calculating a route between a sending node and a receiving node in a network; and allocating the route to a communication slot, wherein the allocating selects route allocation for the communication slot based on a number of allocatable routes that are other routes not including a link the transfer direction of which is the same as that of a route, the link being located in the route embedded into the communication slot.

Abstract: An information processing system comprising a first computer, and a second computer configured to transmit a packet including an address of the first computer, wherein when the first computer is disconnected from a network that is for the second computer to communicate with the first computer, the second computer stops a transmission of the packet.

Abstract: An information processing system includes a relay apparatus configured to select a first route by an operation on the basis of a first address in a packet, and a computer configured to change, when congestion occurs in the first route, an address in the packet from the first address to a second address which causes the relay apparatus to select a second route having a destination the same as that of the first route by the operation.

Abstract: A communication device and method is disclosed for indicating a connection to a network and transmitting a living notification having a term of validity to the network when the device is connected with the network. The disclosed device includes an obtaining unit obtaining a first information representing a device status of the communication device, a determining unit determining a term of validity based on the first information obtained, and a first transmission unit transmitting a living notification having the term of validity determined to the network.

Abstract: A route allocation apparatus includes a route calculation section and a route allocation controller. The route calculation section calculates a route between an outgoing edge node and incoming edge node within a network. The route allocation controller allocates the route to communication slots. Further, the route allocation controller calculates an expected value as an index of the number of the routes allocatable to the communication slots, selects a route allocation in which the expected value is a maximum, obtains the number of the routes allocatable to the selected communication slots after the route allocation, and updates the expected value.

Abstract: This method includes: judging, for each certain combination of the source and destination nodes, for which the number of time slots to be allocated is equal to or greater than 1, whether or not certain time slots exist that are capable of forming a route from the source node to the destination node by unused links; for each certain combination judged, at the judging, that the certain time slots exist that are capable of forming the route by the unused links, identifying, for each certain time slot, a shortest route among routes formed by the unused links, calculating an evaluation value from the number of hops in the shorted route, an allocated priority associated with a corresponding certain combination and the number of used links in the corresponding certain time slot; and identifying a maximum evaluation value among the evaluation values.

Abstract: A computer-readable recording medium which records a remote control program for allowing data on a network protected by a gateway device to be transferred to an external device by external remote-control operations; a portable terminal device; and a gateway device. The terminal device transmits to the gateway device an access ticket issue request. The gateway device generates key information and transmits to the terminal device an access ticket including the key information. The terminal device transfers to a data acquisition device a data acquisition instruction including the acquired access ticket. The acquisition device transmits to the gateway device a data request including the key information. When the key information added to the access ticket and the key information included in the data request are the same, the gateway device transfers the data request to a data server device. The server device transfers the data to the acquisition device.

Abstract: A computer performs a control including (1) receiving a request for monitoring a station to-be-handled which is a communication apparatus different from a pertinent station including the computer, (2) transmitting a request for a response based on the station to-be-handled, to the station to-be-handled at a predetermined time interval, on the basis of the monitoring request, and (3) transmitting a message expressing that the station to-be-handled will be detached from a network, to the network if the response to the response request was not received within a predetermined wait time.

Abstract: A route allocation apparatus includes a route calculation section and a route allocation controller. The route calculation section calculates a route between an outgoing edge node and incoming edge node within a network. The route allocation controller allocates the route to communication slots. Further, the route allocation controller calculates an expected value as an index of the number of the routes allocatable to the communication slots, selects a route allocation in which the expected value is a maximum, obtains the number of the routes allocatable to the selected communication slots after the route allocation, and updates the expected value.

Abstract: A route allocation method including: calculating a route between a sending node and a receiving node in a network; and allocating the route to a communication slot, wherein the allocating selects route allocation for the communication slot based on a number of allocatable routes that are other routes not including a link the transfer direction of which is the same as that of a route, the link being located in the route embedded into the communication slot.