Abstract: A detection device includes processing circuitry configured to acquire data to be detected and normal reference data, calculate a Learned Perceptual Image Patch Similarity (LPIPS) distance between the acquired data and the reference data, and classify the acquired data into either a Clean Sample or an Adversarial Example by using the calculated LPIPS distance.

Abstract: A detection system includes a node and a verification server, wherein the node includes first processing circuitry configured to generate a plurality of random values based on a seed received from the verification server, and generate a response based on information on an area of a first storage content specified by the plurality of generated random values, and transmit the generated response to the verification server, and the verification server includes second processing circuitry configured to generate a plurality of random values based on the seed, generate a verification response based on information on an area of a second storage content specified by the plurality of generated random values, determine whether the response received from the node matches the verification response, and output a determination result.

Abstract: The transmission apparatus intermittently transmits a physical frame of a transmitted signal. The receiving apparatus includes a correlation calculation unit and a determination unit. The correlation calculation unit calculates a correlation between the received signal and each of the correlation sequences subjected to Doppler shift of a plurality of types of shift amounts. The determination unit determines that the physical frame has been received in a case where any one of the calculation results obtained by the correlation calculation unit exceeds the threshold.

Abstract: The present disclosure relates to a vibration measuring instrument that repeatedly injects a plurality of light pulses with different optical frequencies into an optical fiber, and performs distributed acoustic sensing-phase (DAS-P). In the vibration measuring instrument, light pulses having a waveform with a spectral side lobe smaller than a side lobe of a rectangular wave are used as the plurality of light pulses.

Abstract: Crosstalk between adjacent channels is suppressed when monitoring optical output power. A multi-channel optical module for multiplexing and outputting a plurality of wavelength channels, which includes a plurality of light sources each having a different wavelength, a plurality of collimator lenses coupled to the respective outputs of the plurality of light sources, a beam splitter coupled to an output of each of the plurality of collimator lenses, a plurality of monitor PDs for monitoring optical power branched from the beam splitter, and a plurality of wavelength filters inserted between the beam splitter and each of the plurality of monitor PDs and each wavelength filter transmitting only the wavelength of the light source coupled by the beam splitter.

Abstract: An aspect of the present invention is an optical transmission system in which one or more optical transmitters and one or more optical receivers perform communication via an optical transmission path, the optical transmission path including a plurality of relay nodes including optical amplifiers that amplify optical signals, the one or more optical transmitters transmitting optical signals at a plurality of channel frequencies, the one or more optical receivers estimating variations in intensities of the optical systems on the optical transmission path for each of the plurality of channel frequencies, the optical transmission system including: a network controller that acquires estimation information indicating a result of estimating the variations from the one or more optical receivers and acquires gain spectra of the optical amplifiers in the optical transmission path on the basis of the acquired plurality of pieces of estimation information.

Abstract: A base station control system includes a first base station of which a disposition position is not determined, and a base station control device including a memory and a processor configured to: divide an existing second base station and terminals connected to the second base station into clusters through clustering; determine a position corresponding to a cluster not including the second base station among the plurality of clusters as a disposition position of the first base station; calculate the number of first terminals connected to the first base station and the number of second terminals connected to the second base station for each of a plurality of transmission powers of the first base station in a case where the first base station is disposed at the position; and select a transmission power of the first base station based on the number of first terminals and the number of second terminals.

Abstract: An analog-digital conversion method according to the present invention is a method for converting an optical analog signal into an electrical digital signal, the method including: performing at least one of affine transformation with first reference light and homodyne detection with a detection axis of second reference light on the optical analog signal; converting the optical analog signal subject to transformation or detection into an electrical analog signal by photoelectric conversion; and converting the electrical analog signal into an electrical digital signal by thresholding.

Abstract: A communication control system includes a plurality of physical servers. One or more physical servers from among the plurality of physical servers each include a memory; and a processor configured to execute one or more steps of: acquiring information regarding a wireless communication device and environment information that affects wireless communication quality; predicting future wireless communication quality on a basis of the information regarding the wireless communication device and the environment information; controlling, on a basis of the future wireless communication quality, a target device to achieve wireless communication quality depending on a user's purpose, the user using wireless communication; and executing a combination of at least one or more steps of the acquiring, the predicting, or the controlling in response to a request from another system connected via a network.

Abstract: A recognition device that detects a boundary of a roadway by use of time-series images captured by a camera mounted on a vehicle, the recognition device including: an acquisition unit that acquires the time-series images; and a detection unit that classifies areas in the acquired time-series images into a roadway, which is an area having a small change amount, and a portion other than the roadway, which is an area having a large change amount, according to magnitude of the change amounts, and detects a boundary between the area having the small change amount and the area having the large change amount as a boundary of the roadway.

Abstract: Provided is a technology for performing secure computation of a k-means method with high accuracy while keeping data secure. The technology includes: centroid table initialization means that sets a table including a set of a share of a cluster ID j and a share of a centroid of a cluster ID j as a j-th record as an initial value of a centroid table; distance table computation means that computes a distance table including a set of a share of a data ID i, the share of the cluster ID j, a share of a distance dij between data of the data ID i and the centroid of the cluster ID j as an M(j?1)+i-th record; cluster ID table computation means that computes a cluster ID table including a set of the share of the data ID i and a share of a cluster ID k(i) of the cluster to which the data of the data ID i belongs as an i-th record; and centroid table computation means that computes the centroid table.

Abstract: An antenna device used in a contactless power transmission system includes a first resonant antenna having a first impedance and a second resonant antenna having a second impedance different from the first impedance.

Abstract: A control apparatus for determining a setting value for a plurality of circuit breaker devices in a power feeding system is disclosed. The control apparatus includes a memory; and a processor configured to execute a process. The process includes acquiring a measurement result of a current from each of the circuit breaker devices; and determining a layer to which a corresponding one of the circuit breaker devices belongs based on connection configuration information of the plurality of circuit breaker devices and the measurement result, and determining a setting value of the corresponding one of the circuit breaker devices based on the layer to which the corresponding one of the circuit breaker devices belongs.

Abstract: A number of customers prediction device includes an acquisition unit configured to acquire a plurality of explanatory variables including a number of in-building people indicating a number of people existing in the building; and a prediction unit configured to acquire a first number of customers predicted value by inputting the explanatory variable including the number of in-building people to a first model that outputs the first number of customers predicted value that is a predicted value of the number of customers when the explanatory variable including the number of in-building people is input among the plurality of explanatory variables. Further, the prediction unit is configured to acquire a second number of customers predicted value by inputting the explanatory variable not including the number of in-building people to a second model that outputs the second number of customers predicted value.

Abstract: A network management device includes a failure influence calculation unit configured to calculate, for each of a plurality of buildings corresponding to an upper layer of a network, an influence of a failure in communication including an occurring failure and an influence of the occurring failure on another building corresponding to a lower layer of the network when a condition that the failure occurs in communication in one of the buildings corresponding to the upper layer of the network and each accommodating a communication facility is applied. Further, there is a priority calculation unit configured to calculate, for each combination of a plurality of buildings in which the failure has occurred. A priority of a candidate for a building to be restored is applied on the basis of the influence calculated by the failure influence calculation unit.

Abstract: A glasses-free AR display device includes a half mirror, a darkroom-like structure, a display, an illumination, and a video controller. The half mirror is disposed upright on a floor. The darkroom-like structure is provided behind the half mirror. The display is disposed in the darkroom-like structure obliquely to a surface of the half mirror. The illumination illuminates a user located in front of the half mirror on the opposite side of the display. The video controller receives a video signal and causes the display to display a video.

Abstract: A power control apparatus for use in a system including one or more racks each equipped with one or more servers includes an acquisition unit configured to acquire power consumption and a total load value of a target rack, and a calculation unit configured to calculate a load variation amount, which corresponds to an amount of power consumption control for the target rack, based on the power consumption, the total load value, and a power consumption characteristic of the target rack.

Abstract: A prediction device includes a model generation unit, a prediction value error calculation unit, a difference error calculation unit, an update weight learning unit, and a model update unit. The model generation unit generates a base model of a prediction model configured to predict a future value using information on a future event. The prediction value error calculation unit acquires a real-time observation value, and calculates a prediction error between the real-time observation value and a prediction value by a prediction model. The difference error calculation unit acquires a real-time observation value and calculates a difference error between the real-time observation value and a prediction value by the prediction model. The update weight learning unit acquires a prediction error and a difference error, and updates the update weight to minimize a total error between the prediction value and the real-time observation value at a plurality of past times.

Abstract: An object of the present disclosure is to enable a plurality of sensor terminals to cooperate when an event occurs. The present disclosure is a data collection system that collects sensing data detected by a sub-sensor terminal and a main sensor terminal having different sensing targets in the management node, in which the sub-sensor terminal transmits an event occurrence notification using an extension area of a layer 2 communication protocol when sensing a sensing target of the own apparatus, the management node transmits an instruction according to the event occurrence notification to the main sensor terminal when receiving the event occurrence notification from the sub-sensor terminal, and the main sensor terminal executes an operation defined by the instruction in response to reception of the instruction from the management node.

Abstract: A base station of the embodiment includes first and second wireless signal processing units and a link management unit. The first and second wireless signal processing units are configured to transmit and receive wireless signals using first and second channels, respectively. The link management unit establishes a multi-link with a terminal apparatus using the first and second wireless signal processing units, sets the first wireless signal processing unit as a primary link, and sets the second wireless signal processing unit to a secondary link. When the secondary link is in an active mode and a first condition is satisfied, the link management unit sets the secondary link to the operation pause mode. When the secondary link is in an operation pause mode and a second condition is satisfied, the link management unit sets the secondary link to the active mode.