Tetsuji YAMATO has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
Abstract: First and second data catalogs each indicate sensing data attributes. The first and second data catalogs each include a first word indicating an observation object of a sensor that generated sensing data and a second word indicating an observation characteristic of the sensor. A score calculation unit includes a first weight determination part, a second weight determination part, and a score calculation part. The first weight determination part determines a first weight value relating to the observation object, based on the relationship between the first words included in the first and second data catalogs. The second weight determination part determines a second weight value relating to the observation characteristic, based on the relationship between the second words included in the first and second data catalogs. The score calculation part calculates a score relating to the coincidence of the first and second data catalogs, using the first and second weight values.
Abstract: A first data format may include real data. A second data format and a third data format each may include real data and metadata indicative of an attribute of the real data. The second data format may include the real data and the metadata in data units different from each other. The third data format may include the real data and the metadata in a single data unit. A program may cause a processor to convert, in response to an input data being in the first data format or in the third data format, the data format of the input data to generate output data in the second data format.
Abstract: A data processing apparatus according to one or more embodiments may process metadata indicative of an attribute of real data input into an extract, transform, and load (ETL) tool external to the data processing apparatus. The real data and the metadata may each include an identification (ID). The data processing apparatus may include a memory and a processor. The memory may store a program. The processor may execute the program. The program may cause the processor to process the metadata to include the same ID as the real data output from the ETL tool.
Abstract: A sensor management unit includes an obtaining unit that obtains sensing data from a sensing device to generate sensing data of a plurality of sensing items, a detection unit that detects an overloaded state of the sensing device, a retrieval unit that determines, based on a detection result obtained by the detection unit, at least one sensing item to be retrieved from of the plurality of sensing items and retrieves the determined sensing item, and an output unit that outputs the retrieved sensing item to an external device.
Abstract: A session control apparatus, a session control method, and a session control program may maintain a quality of input data output to a processing module. A processing module has a defined condition regarding a quality of the input data. The session control apparatus includes a selection unit and a switching unit. The selection unit selects a second device when the input data fails to satisfy the condition. The switching unit switches a first device that outputs the input data to the processing module to the second device selected by the selection unit.
Abstract: A communication unit acquires sensor-side metadata, which is information relating to a sensor, and application-side metadata, which is information relating to an application. A comparison unit extracts a sensor that can provide the sensing data through matching between the sensor-side metadata and the application-side metadata, and a notification unit transmits, based on a result of the extraction, a data flow control command to a sensor management device. The sensor-side metadata and the application-side metadata contain data that can be handled as dynamic data.
Abstract: A coordinator (10) includes an accepting unit (11), a required resource information calculation unit (13a), an insufficient resource information calculation unit (13b), a combination determination unit (14), and a communication unit (18). The required resource information calculation unit (13a) calculates information regarding resources required to satisfy a request accepted by the accepting unit (11). The insufficient resource information calculation unit (13b) compares the required resources calculated by the required resource information calculation unit (13a) with resources included in each of a plurality of sensor nodes (30, 40, 50), and calculates information regarding an insufficient resource that each sensor node lacks. The combination determination unit (14) determines a combination of resources required to satisfy the request, based on the information regarding the insufficient resource calculated by the insufficient resource information calculation unit (13b).
Abstract: The present invention is provided with a sensor-side metadata acquiring unit that acquires sensor-side test metadata, an application-side metadata acquiring unit that acquires application-side test metadata, a matching unit that determines matching of acquired sensor-side test metadata and acquired application-side test metadata, and a dataflow control command instructing unit that transmits a dataflow control command instructing test data flow to an opening test application from a sensor or network adaptor specified by matched sensor-side test metadata and the application-side test metadata.
Abstract: An instruction device includes: an acquiring unit configured to acquire provided metadata, which is attribute information relating to one or more attributes of sensing data, the provided metadata having one or more hierarchy levels that contain information shared by a plurality of sensors; an acquiring unit configured to acquire usable metadata, which is attribute information relating to one or more attributes of an application; a matching unit configured to perform matching between the provided metadata and the usable metadata for each hierarchy level, calculate, for each hierarchy level, an inter-level matching degree that indicates a degree of matching in the hierarchy level, and extract a sensor capable of providing the sensing data that satisfies a request of the application, based on an overall matching degree; and an instruction unit configured to transmit a data flow control instruction that specifies the application and the extracted sensor.
Abstract: A sensor management unit according to an aspect of the present invention includes: a sensing data acquisition portion configured to acquire sensing data obtained by a sensor observing a target; a metadata generating portion configured to generate, for the acquired sensing data, metadata indicating an attribute of the sensor; an identification code generating portion configured to generate a first identification code for identifying the sensing data, and a second identification code for identifying the metadata; and a communicating portion configured to transmit, to an external device, at least one of the sensing data to which the second identification code is added and the metadata to which the first identification code is added.
Abstract: A data generation apparatus generates first metadata to be associated with a virtual sensor. The apparatus includes an obtaining unit that obtains second metadata about a real sensor, a reception unit that receives tentatively input first metadata, a determination unit that determines consistency between the first metadata tentatively input through the reception unit and the second metadata obtained by the obtaining unit, and a generation unit that generates final first metadata based on a determination result obtained by the determination unit.
Abstract: A sensor management unit transmits first sensing data obtained by a first sensor monitoring a target to an external device external to the sensor management unit. The sensor management unit includes a processor, and a memory storing a program. The memory stores obtaining condition information that defines obtaining conditions for obtaining a plurality of candidate items of metadata to be associated with the first sensing data. The program causes the processor to implement obtaining at least one of the candidate items of metadata in accordance with the obtaining conditions and transmitting, to the external device, the obtained first sensing data and the obtained metadata in a manner associated with each other.
Abstract: A preprocessing determination apparatus, a preprocessing determination method, and a preprocessing determination program perform determination for preprocessing of input data to be input into a processing module. The processing module is associated with first metadata indicating a condition of the input data. The input data is associated with second metadata indicating an attribute of the input data. The preprocessing determination apparatus includes a first obtaining unit, a second obtaining unit, and a determination unit. The first obtaining unit obtains the first metadata. The second obtaining unit obtains the second metadata. The determination unit performs the determination for the preprocessing of the input data based on the first metadata and the second metadata.
Abstract: A candidate extraction apparatus, a candidate extraction method, and a candidate extraction program extract appropriate candidates for an input into a processing module. The processing module is associated with first metadata indicating a condition of the input data. A plurality of devices are each associated with second metadata indicating an attribute of the input data output from the device. The candidate extraction apparatus includes a first obtaining unit, a second obtaining unit, and an extraction unit. The first obtaining unit obtains the first metadata. The second obtaining unit obtains the second metadata associated with each of the plurality of devices. The extraction unit extracts the candidates greater in number than at least one input port from the plurality of devices based on the first metadata and the second metadata.
Abstract: A matching apparatus includes: a sensor-side metadata acquisition unit that acquires sensor-side metadata; an application-side metadata acquisition unit that acquires application-side metadata; a matching unit that performs matching between the sensor-side metadata and the application-side metadata in which a first related term that is related to a term in the acquired sensor-side metadata and a second related term that is related to a term in the acquired application-side metadata are in common with each other, and extracts a sensor candidate; and a dataflow control command instruction unit that transmits a dataflow control command that includes information that specifies the sensor extracted by the matching unit and an application.
Abstract: A compatibility determination apparatus, a compatibility determination method and a program that are configured to determine the compatibility of an agent that outputs input data to a processing module are provided. The processing module is a learned model generated by using a plurality of learning data. Each of the plurality of learning data includes input data and a ground truth label of output data associated with the input data. First metadata is associated with the processing module. The first metadata is generated based on a probability density function of a plurality of input data associated with a ground truth label common to each thereof. The compatibility determination apparatus acquires the first metadata, and determines the compatibility based on the first metadata.
Abstract: A metadata generation apparatus capable of generating metadata, as well as a metadata generation method and program are provided. The sensing device is configured to generate an output value based on a physical amount that is input. The metadata generation apparatus includes a probability density function generation unit and a metadata generation unit. The probability density function generation unit is configured to generate a probability density function of an output value when a specific physical amount is input to the sensing device. The metadata generation unit is configured to generate metadata based on the probability density function.
Abstract: One mode of the present invention is configured to acquire sensor-side metadata including a first label corresponding to a label showing a name given in order to identify event data, to acquire app-side metadata including a second label that is an event condition showing a condition of an event and corresponds to the label, to determine, in a case where sensing data satisfies a requirement of an application, whether the first label and the second label are identical, and to transmit, in the case where these labels are identical, a dataflow control command including information specifying a sensor, information specifying the application and the event condition included in the app-side metadata.
Abstract: Provided is a metadata generation apparatus. The metadata generation apparatus generates metadata that is associated with a processing module. The processing module is a trained model generated by using a plurality of sets of learning data. Each set of the learning data includes input data and a correct label of output data. The metadata generation apparatus includes a probability density function generation unit and a metadata generation unit. The probability density function generation unit generate a probability density function of a plurality of sets of input data associated with the same correct label. The metadata generation unit generates metadata based on the probability density function.
Abstract: A dataflow control apparatus extracts a device capable of providing data that satisfies requirements of an application by matching device-side metadata and app-side metadata. The device-side metadata is capable of describing information indicating a history of data that a device provides, and the app-side metadata is capable of describing information indicating a history of data that an application requires. The dataflow control apparatus, in a case where the information indicating the history is described in the app-side metadata, extracts a device capable of providing data that satisfies at least both the specification and the history that the application requires from among a plurality of the devices.