Abstract: An anomaly factor estimation apparatus includes a memory and a processor configured to execute training an anomaly detection model for performing anomaly detection based on an error of output data with respect to input data represented by a multidimensional numerical vector; inputting test data into the anomaly detection model, to determine whether the test data corresponds to an anomaly based on output data output from the anomaly detection model and the test data; and calculating a degree of contribution to the anomaly for each dimension of the test data based on a likelihood of said each dimension, in response to determining that the test data corresponds to the anomaly.

Abstract: To provide a valve that is easily assembled and has a low possibility of breakage of a coupled section even when the valve has to be downsized or subjected to a large load. A valve has a valve unit and a drive unit, is configured to include: a first recess that is a recess formed in either one of a second stem or a first stem and is formed with a groove at a predetermined position on an inner circumferential surface of the recess; a second recess formed in another one thereof; a stem pin accommodated in both of the recesses; an urging member that is accommodated in the first recess and urges the stem pin to the other side; a sidewall through-hole that penetrates a sidewall of the second recess horizontally; and a ball that enters the sidewall through-hole.

Abstract: A valve device comprising: a flow passage block in which a flow passage is formed; a diaphragm configured to open and close the flow passage; an actuator configured to push down the diaphragm via a diaphragm holder; a tubular bonnet formed with an internal thread on an inner circumferential surface, the bonnet being configured to join the flow passage block and the actuator; a tubular adjusting screw threaded to the internal thread, the adjusting screw being configured to come into contact with the diaphragm holder to adjust a valve opening position of the diaphragm; and an annular lock nut configured to lock the adjusting screw by being screwed into the internal thread.

Abstract: A feature value generation device includes a generator configured to digitize non-numerical text data items collected at a plurality of timings from a target of anomaly detection, to generate vectors whose elements are feature values corresponding to the digitized data items; a learning unit configured to learn the vectors during a learning period so as to output a learning result; and a detector configured to detect, during a test period, for each of the vectors generated by the generator, an anomaly based on said each of the vectors and the learning result.

Abstract: A resource allocation calculation device includes: a demand prediction unit that for each of a plurality of virtual networks sharing a physical network, predicts demands in units of communications sharing common origin and destination nodes; and an allocation calculation unit that based on the demands predicted by the demand prediction unit, observed past demands in the units of communications and past allocated bandwidths in the units of communications, calculates allocated bandwidths and allocated routes at a current time for the respective units of communications in such a manner that fairness between utilities of the respective virtual networks is maximized, which enhances fairness and efficiency of allocation of resources to a plurality of virtual networks sharing resources of a physical network.

Abstract: An anomaly detection apparatus having a function of an autoencoder that includes an input layer, hidden layers, and an output layer, and that learns parameters such that data of the input layer is reproduced in the output layer, the anomaly detection apparatus including: input means that input normal data of a plurality of types; learning means that learn parameters such that normal data of the input layer is reproduced in the output layer by learning a feature across data types using data of a dimension which is smaller than a dimension of the normal data; and anomaly degree calculation means that input test data to the autoencoder using the parameters learned by the learning means, and calculate anomaly degree of the test data based on output data of the autoencoder and the test data.

Abstract: Provided is an actuator including a ball-type thrust amplifier therein that controls a valve in which a high-pressure fluid flows, and having less wear between members and a long lifespan. This actuator for a valve includes a thrust amplification mechanism therein, in which the thrust amplification mechanism includes a disk, a ball presser, a stem, and a plurality of balls that are sandwiched by and in contact with an upper surface of the disk, a tapered surface of the ball presser, and a tapered surface of the stem and disposed to move outward as the stem moves downward, the surfaces of the parts constituting the thrust amplification mechanism are coated with grease containing an additive, and the additive of the grease includes at least chloroalkane.

Abstract: A device for estimating a cause of an anomaly comprises: a detection unit to detect an anomaly in a detection target based on a learner trained on first numerical vectors obtained from a detection target when the detection target is under a normal condition and second numerical vectors to be obtained from the detection target at multiple time; and a first computing unit to compute, for each metric of a second numerical vector from which an anomaly has been detected, as information for estimating a metric of cause of the anomaly, a value obtained by subtracting, from a value of the metric, an average of the metric in the first numerical vectors, and dividing a result of the subtracting by standard deviation of the metric in the first numerical vectors. This device supports estimation of the cause of an anomaly detected in a target object for detecting an anomaly.

Abstract: A valve device comprising: a flow passage block in which a flow passage is formed; a diaphragm configured to open and close the flow passage; an actuator configured to push down the diaphragm via a diaphragm holder; a tubular bonnet formed with an internal thread on an inner circumferential surface, the bonnet being configured to join the flow passage block and the actuator; a tubular adjusting screw threaded to the internal thread, the adjusting screw being configured to come into contact with the diaphragm holder to adjust a valve opening position of the diaphragm; and an annular lock nut configured to lock the adjusting screw by being screwed into the internal thread.

Abstract: To provide a control valve with excellent durability performance without being restricted in terms of applications, such as usages under high pressures or high temperatures, as well as reduced generation of particles. A valve body forming an inflow passage and an outflow passage of a fluid; a valve seat formed at a peripheral edge of the inflow passage in the valve body; a diaphragm configured to connect and shut off the inflow passage and the outflow passage by coming into and out of contact with the valve seat; a diaphragm holder configured to press a central portion of the diaphragm; and an actuator configured to move the diaphragm holder are provided, includes a regulation mechanism configured to adjust a closing pressure generated between the valve seat and the diaphragm to a predetermined pressure.

Abstract: An apparatus for estimating anomaly information includes an input unit configured to input anomaly data detected as anomaly by an anomaly detecting algorithm that outputs an anomaly degree of input data for vectors, using learning of the vectors in a normal state, and an estimate unit configured to search for one or more vectors that decrease the degree of anomaly when added to the anomaly data, taking into account a likelihood, for each dimension, of a given dimension being a cause of the anomaly, and estimate the cause of the anomaly based on the searched vectors whereby it is possible to estimate detailed information on a detected anomaly.

Abstract: To provide a diaphragm and a diaphragm valve which solve a problem of deterioration of air-tightness due to insufficient tightening of a bolt and damage to the diaphragm due to over-tightening of the bolt, as well as reducing variations in performance such as durability of the diaphragm and simplifying tightening work. A diaphragm is provided with a through hole having a diameter larger than a diameter through which a bolt can be fitly inserted. A bolt insertion cylinder made of metal through which the bolt can be inserted is fitted in the through hole. A height of the bolt insertion cylinder is equal to or less than a height of the through hole.

Abstract: An access source classification apparatus has: a first calculation unit that calculates a statistic related to access to each service by each access source based on a set of access logs indicating access to any service of a plurality of services by any access source of a plurality of access sources; an extraction unit that, for each of the services, calculates an index value indicating distribution of access status to the service for each of the access sources based on the access logs related to the service, and extracts some services based on the index value; a second calculation unit that calculates relevance between each access source and each service extracted by the extraction unit by applying a clustering approach to the statistic; and a classification unit that classifies an access source to any service extracted by the extraction unit into any of groups each including one or more access sources based on the relevance, thereby assisting improvement of efficiency in identifying the terminal type of an a

Abstract: A gasket includes a thick portion providing a first face seal and a thin portion providing a second face seal. A fluid coupling has an annular gasket housing recess that includes a wide portion for housing the thick portion of the gasket and a narrow portion for housing the thin portion of the gasket.

Abstract: A first time series of traffic volume and a first time series of communication quality that are observed in a first communication line in which traffic demand is equal to or greater than a line bandwidth and a second time series of traffic volume and a second time series of communication quality that are observed in a second communication line in which traffic demand is less than a line bandwidth are input to a state space model to estimate values of a parameter group of the state space model, the traffic demand is calculated based on the values of the parameter group, and the state space model is a state space model in which the first time series of traffic volume and the second time series of traffic volume are generated from a third time series indicating cyclicity of traffic common to the first communication line and the second communication line under influence of the first time series of communication quality and the second time series of communication quality on the traffic demand, thereby supporting a

Abstract: A resource allocation calculation device includes: a demand prediction unit that for each of a plurality of virtual networks sharing a physical network, predicts demands in units of communications sharing common origin and destination nodes; and an allocation calculation unit that based on the demands predicted by the demand prediction unit, observed past demands in the units of communications and past allocated bandwidths in the units of communications, calculates allocated bandwidths and allocated routes at a current time for the respective units of communications in such a manner that fairness between utilities of the respective virtual networks is maximized, which enhances fairness and efficiency of allocation of resources to a plurality of virtual networks sharing resources of a physical network.

Abstract: An anomaly factor estimation apparatus includes a training unit configured to train an anomaly detection model for performing anomaly detection based on an error of output data with respect to input data represented by a multidimensional numerical vector; a testing unit configured to input test data into the anomaly detection model, to determine whether the test data corresponds to an anomaly based on output data output from the anomaly detection model and the test data; and a factor estimation unit configured to calculate a degree of contribution to the anomaly for each dimension of the test data based on a likelihood of said each dimension, in response to the testing unit determining that the test data corresponds to the anomaly.

Abstract: A first time series of traffic volume and a first time series of communication quality that are observed in a first communication line in which traffic demand is equal to or greater than a line bandwidth and a second time series of traffic volume and a second time series of communication quality that are observed in a second communication line in which traffic demand is less than a line bandwidth are input to a state space model to estimate values of a parameter group of the state space model, the traffic demand is calculated based on the values of the parameter group, and the state space model is a state space model in which the first time series of traffic volume and the second time series of traffic volume are generated from a third time series indicating cyclicity of traffic common to the first communication line and the second communication line under influence of the first time series of communication quality and the second time series of communication quality on the traffic demand, thereby supporting a

Abstract: A control device of the present invention is for calculating allocation information regarding the allocation of wireless resources of a plurality of base stations to a plurality of user devices. The control device includes: information managing means for storing request data amounts of the user devices; calculating means for calculating an estimated waiting time for each of the user devices by dividing the request data amount by an available bandwidth, and, using the maximum transmission power of the base stations as a constraint, calculating the allocation information regarding the allocation of the wireless resources of the base stations to the user devices so as to minimize the estimated waiting time of the user device having the highest estimated waiting time; and outputting means for outputting the allocation information that was calculated by the calculating means.

Abstract: Provided is a small-sized controller capable of precisely controlling a flow rate of a high-pressure fluid. Between a working shaft of a drive device and a valve stem, a power transmission device is disposed to amplify a force acting on the working shaft and transmit the resultant force to the valve stem. A diaphragm as a valve element is made of metal and is deformable to: a state where a fluid passage is fully closed; a state where the fluid passage is fully open; or a state where the fluid passage is partially open. When the fluid passage is partially open, on the basis of the flow rate of a fluid flowing through fluid passages, the drive device finely adjusts the position of the working shaft such that the flow rate is constant.