Abstract: A process includes obtaining first and third average-values of remaining elements after masking, with a first condition, first and second column-data obtained by taking out values of first and second attributes from tabular-data, obtaining second and fourth average-values of the remaining elements after masking the first and second column-data with a second condition that negates the first condition, loading the first and second column-data into a first register, loading values obtained by masking the first and third average-values with the first condition and values obtained by masking the second and fourth average-values with the second condition, into a second register, obtaining first and second value-sequences by performing first and second subtraction between value-sequences loaded into each of the first and second registers on the first and second column-data, and obtaining correlation-coefficients between the first and second column-data for the first and second conditions, based on the first and seco

Abstract: An analysis method includes acquiring target data collected at edges; determining first analysis target satisfying a first condition, and specifying a first detection position indicating a position at which the first analysis target is detected at the edges and a first detection time; calculating a correlation coefficient of the feature amount; specifying a first range of the first detection position and a second range of the first detection time of the analysis target for which the correlation coefficient satisfies a predetermined relationship; determining second analysis target satisfying a second condition, and specifying a second detection position and a second detection time; determining whether the analysis target in which the second detection position is included in the first range and the second detection time; and acquiring any one of the analysis target from the edges when it is determined that the analysis target is included.

Abstract: An analysis method includes acquiring target data collected at edges; determining first analysis target satisfying a first condition, and specifying a first detection position indicating a position at which the first analysis target is detected at the edges and a first detection time; calculating a correlation coefficient of the feature amount; specifying a first range of the first detection position and a second range of the first detection time of the analysis target for which the correlation coefficient satisfies a predetermined relationship; determining second analysis target satisfying a second condition, and specifying a second detection position and a second detection time; determining whether the analysis target in which the second detection position is included in the first range and the second detection time; and acquiring any one of the analysis target from the edges when it is determined that the analysis target is included.

Abstract: An information-processing-system includes an information-processing-apparatus to acquire log information from a predetermined number of log-acquisition-target-apparatuses, extract a difference portion between the acquired predetermined number of log information as a variable part, replace the extracted variable part with an identifier in the log information, calculate a first hash of the replaced log information, and transmit extraction-information, the identifier, and the first hash to a log-acquisition-target-apparatus different from the predetermined number of log-acquisition-target-apparatuses, and a log-acquisition-target-apparatus to receive the extraction-information, the identifier, and the first hash, extract the variable part from the log information generated in the log-acquisition-target-apparatus, based on the extraction-information, replace the variable part of the generated log information with the identifier, calculate a second hash of the replaced log information, determine whether or not the

Abstract: There is provided an information management method used by a computer that manages a system storing key-data pairs, each including a key obtained by application of a predetermined function and data associated with the key, in such a way as to be distributed among a plurality of nodes. The method includes storing, in a management table, information on an identifier common to a plurality of systems, one or more keys commonly assigned to the identifier, and nodes assigned to the identifier; and reflecting, when a node whose assignment to the identifier has been once cancelled is reassigned to the identifier, the reassignment of the node into the management table, and implementing synchronization of one or more key-data pairs corresponding to the keys assigned to the identifier between the reassigned node and remaining nodes assigned to the identifier.

Abstract: An information management apparatus manages systems each storing key-data pairs, each including a key obtained by applying a predetermined function and data associated with the key, so as to be distributed among nodes, and includes a storing unit for storing a management table that stores information on an identifier common to systems, a key assigned to the identifier, and nodes assigned to the identifier; and a control unit for extracting, from a node pool housing nodes unassigned to any of the systems, as many nodes as the number of systems when the number of nodes in the node pool is equal to or larger than that of systems, assigning, in association with an identifier common to the systems, each of the extracted nodes to the individual systems, assigning a key to the identifier, and updating the management table according to the node and key assignment.

Abstract: An information processing apparatus includes: a memory; and a processor coupled to the memory, the processor being configured to execute a procedure including: receiving a storing request to store data into a key value store that stores a key and a value in association with each other; storing identification information allocated to the data and the data into the key value store; managing association information that associates identification information allocated to data received in a unit time and contents of the data received in the unit time; and generating an index of the key value store based on a retrieving request specifying a time point, the association information, and the data stored in the key value store, the retrieving request being a request to retrieve data from the key value store.

Abstract: A method, which is performed by a computer for management of distributed data, includes: associating device information items including information acquired from devices with first identification information items to be used to identify the devices and storing the device information items and the first identification information items in a storage device; calculating co-occurrence probabilities of combinations of the associated first identification information items for the device information items stored in the storage device; assigning second identification information items to the first identification information items based on the co-occurrence probabilities; generating compressed data by compressing the device information items using the second identification information items assigned to the first identification information items associated with the device information items upon the compression of the device information items; and transmitting the compressed data to a managing device.

Abstract: A gateway device that accesses to an information processing device includes a memory and a processor coupled to the memory and configured to when the data corresponding to the search key information, transmit the search key information to a first gateway device; when the search key information from a second gateway device is received and the received search key information is not included in the search key information, transmit the search key information; when the data corresponding to the search key information is not included in the search key information that has been transmitted to the information processing device, transmit the search key information corresponding to plural pieces of data; and determine whether or not continue to transmit the search key information to first gateway device based on a first ratio and a second ratio when the gateway device transmits the search key information to the first gateway device.

Abstract: An information collection system includes a center server that collects meta information including a key and a value; and an edge server that transmits the meta information to the center server, wherein the edge server is configured to: select the key for managing an appearance frequency of the value, based on characteristics of the meta information, update an appearance frequency of the value corresponding to the selected key, and generating a template of a combination of a target value whose the updated appearance frequency is greater than a threshold frequency and a target key corresponding to the target value.

Abstract: A method, which is performed by a computer for management of distributed data, includes: associating device information items including information acquired from devices with first identification information items to be used to identify the devices and storing the device information items and the first identification information items in a storage device; calculating co-occurrence probabilities of combinations of the associated first identification information items for the device information items stored in the storage device; assigning second identification information items to the first identification information items based on the co-occurrence probabilities; generating compressed data by compressing the device information items using the second identification information items assigned to the first identification information items associated with the device information items upon the compression of the device information items; and transmitting the compressed data to a managing device.

Abstract: A gateway device that accesses to an information processing device includes a memory and a processor coupled to the memory and configured to when the data corresponding to the search key information, transmit the search key information to a first gateway device; when the search key information from a second gateway device is received and the received search key information is not included in the search key information, transmit the search key information; when the data corresponding to the search key information is not included in the search key information that has been transmitted to the information processing device, transmit the search key information corresponding to plural pieces of data; and determine whether or not continue to transmit the search key information to first gateway device based on a first ratio and a second ratio when the gateway device transmits the search key information to the first gateway device.

Abstract: There is provided an information management method used by a computer that manages a system storing key-data pairs, each including a key obtained by application of a predetermined function and data associated with the key, in such a way as to be distributed among a plurality of nodes. The method includes storing, in a management table, information on an identifier common to a plurality of systems, one or more keys commonly assigned to the identifier, and nodes assigned to the identifier; and reflecting, when a node whose assignment to the identifier has been once cancelled is reassigned to the identifier, the reassignment of the node into the management table, and implementing synchronization of one or more key-data pairs corresponding to the keys assigned to the identifier between the reassigned node and remaining nodes assigned to the identifier.

Abstract: Gateways transfer data between publishers and subscribers. Upon receiving an acquisition request for acquiring device-information from a subscriber, a first gateway stores, as routing-information, a matching condition for transferring device-information and a transfer-destination address, and transfers the acquisition request. Upon receiving device-information issued by a publisher, the second gateway stores the device-information in association with a reception time of the device-information, adds, to the routing information, a matching result including a source address of the device-information and the reception time, and transfers the device-information through gateways to the first gateway, according to the routing information.

Abstract: An information management apparatus manages systems each storing key-data pairs, each including a key obtained by applying a predetermined function and data associated with the key, so as to be distributed among nodes, and includes a storing unit for storing a management table that stores information on an identifier common to systems, a key assigned to the identifier, and nodes assigned to the identifier; and a control unit for extracting, from a node pool housing nodes unassigned to any of the systems, as many nodes as the number of systems when the number of nodes in the node pool is equal to or larger than that of systems, assigning, in association with an identifier common to the systems, each of the extracted nodes to the individual systems, assigning a key to the identifier, and updating the management table according to the node and key assignment.

Abstract: Gateways transfer data between publishers and subscribers. Upon receiving an acquisition request for acquiring device-information from a subscriber, a first gateway stores, as routing-information, a matching condition for transferring device-information and a transfer-destination address, and transfers the acquisition request. Upon receiving device-information issued by a publisher, the second gateway stores the device-information in association with a reception time of the device-information, adds, to the routing information, a matching result including a source address of the device-information and the reception time, and transfers the device-information through gateways to the first gateway, according to the routing information.

Abstract: A non-transitory computer-readable storage medium storing an exclusive switching program that causes a computer to execute a process including obtaining supply information indicating a plurality of quantities of resources being available in a plurality of regions respectively, obtaining demand information indicating a plurality of demand quantities of the resources for the plurality of regions respectively, calculating a plurality of index values corresponding to the plurality of regions respectively based on the supply information and the demand information, each of the plurality of index values indicating probability of a collision of the resources in each of the plurality of regions, and determining, for each of a plurality of regions, a lock method to be applied in an exclusive access control for the resources based on the plurality of index values among from a plurality of lock methods.

Abstract: A fuel gas production apparatus includes a reforming mechanism, a cooling mechanism connected an outlet side of the reforming mechanism and a PSA mechanism directly connected to the reforming mechanism through the cooling mechanism. The reforming mechanism uses an auto-thermal reforming system for reforming a fuel to obtain a reformed gas. The cooling mechanism cools the reformed gas to a predetermined temperature. After the reformed gas is cooled by the cooling mechanism, the PSA mechanism removes impurities from the reformed gas to produce a hydrogen-rich pure fuel gas.

Abstract: A methanol-decomposing catalyst comprises catalytically active components containing copper and zinc, and a carrier composed of zirconia and/or titania and ceria for supporting the catalytically active components. The methanol-decomposing catalyst has excellent catalytic activity, thereby efficiently producing a hydrogen gas while suppressing side reactions.

Abstract: A methanol-decomposing catalyst comprises catalytically active components containing copper and zinc, and a carrier composed of zirconia and/or titania and ceria for supporting the catalytically active components. The methanol-decomposing catalyst has excellent catalytic activity, thereby efficiently producing a hydrogen gas while suppressing side reactions.