Abstract: A detection device includes a memory and processing circuitry configured to extract a predetermined number of pieces of similar normal packet data with a relatively high similarity to evaluation target packet data from a plurality of pieces of normal packet data on a basis of a natural language processing model, and detect whether or not the evaluation target packet data is abnormal on the basis of an anomaly score calculated by comparing a predetermined number of pieces of the similar normal packet data extracted with the evaluation target packet data.

Abstract: A detection apparatus includes a memory and processing circuitry configured to classify, based on feature values of a plurality of domain names known to be malicious, the plurality of domain names into a plurality of clusters, generate a matching rule for each of the plurality of clusters, and determine whether a detection target domain name is malicious using a matching rule generated for a cluster including a domain name having a similarity to the detection target domain name equal to or larger than a threshold among the plurality of clusters.

Abstract: A transmission station transmits a radio signal via a plurality of antennas to establish wireless communication by MIMO under a communication standard supporting a dummy frame. A UW unique to an antenna used for transmission of the dummy frame is imparted to the dummy frame. The dummy frame and a normal frame in which data to be transferred is stored are transmitted from any of the plurality of antennas. A reception station receives the dummy frame, extracts the UW, specifies the antenna of the transmission source of the dummy frame based on the UW, estimates a channel state between the transmission station and the reception station based on the reception state of the dummy frame the antenna of the transmission source of which can be specified, and achieves MIMO transmission for the data stored in the normal frame using a channel matrix representing the channel state.

Abstract: The present disclosure relates to a propagation environment reproduction device that reproduces a propagation environment for verifying communication performance and the like of a measurement object. There is provided a propagation environment reproduction device including: an anechoic chamber that blocks an electromagnetic wave from the outside; a reconfigurable intelligent surface (RIS) that is installed in the anechoic chamber; a RIS control device that provides a control signal to the RIS; a transmission antenna that is installed in the anechoic chamber; a channel emulator that controls a characteristic of an electromagnetic wave transmitted from the transmission antenna; and a control server that controls the RIS control device and the channel emulator. The RIS is a reflector having a characteristic of changing a reflection pattern according to the control signal.

Abstract: A wireless apparatus includes a communication unit, a first calculation unit, a second calculation unit, and a transmission control unit. The communication unit wirelessly communicates with another wireless apparatus using a plurality of links established between the wireless apparatus and the other wireless apparatus. The first calculation unit calculates a frame exchange period including a time period required for frame transmission to the other wireless apparatus. The second calculation unit calculates, for each of the plurality of links, a communicative period indicating a time period until the start of a service period during which a transmission opportunity is given. The transmission control unit performs the frame transmission on a link for which the frame exchange period is shorter than the communicative period when there is a link for which the frame exchange period is shorter than the communicative period.

Abstract: An aspect of the present invention is a learning device including a control unit that obtains, by learning, target representation encoding process of encoding representation of data to be converted into target representation that is predetermined representation determined in advance, in which the control unit executes first representation encoding process of encoding representation of a processing target into target representation using first data that is data obtained by removing masked data from the 0-th data that is data represented by a tensor as the processing target, masked data representation prediction processing of predicting target representation of the masked data on the basis of a result of the first representation encoding process, second representation encoding process of encoding representation of second data that is part or all of the masked data into target representation, and updating processing of updating content of the first representation encoding process so as to reduce a difference bet

Abstract: One aspect of the present invention is a decision device including: a position information acquisition unit that acquires position information indicating a position where the lighting device is installable and an irradiation target region that is irradiated with light in a case where the lighting device is installed at the position; an adjacency information acquisition unit that acquires adjacency information indicating an adjacency relationship of the irradiation target region on the basis of the position information acquired by the position information acquisition unit; and a decision unit that decides the installation position of the lighting device on the basis of the adjacency information acquired by the adjacency information acquisition unit such that non-irradiation target regions are not adjacent to each other, the non-irradiation target regions being not irradiated with light whose output mode changes due to non-installation of the lighting devices.

Abstract: A light receiving element of the present disclosure adopts a configuration in which a path of a return current is minimized, and achieves excellent high-frequency transmission characteristics. In the light receiving element of the present disclosure, not only a signal path of a high-frequency electric signal processed by an optical receiving circuit but also a path of a return current returning through a ground side are straightened. A return current flowing in a direction opposite to a high-frequency signal from a PD flows in a ground pattern formed on a lower surface of the PD, which is in contact with ground potential of a PD sub-mount. The ground pattern on the lower surface of the PD realizes a flat high-frequency transmission characteristic, and in a multi-channel PD array, unnecessary resonance and radiation noise are suppressed, and inter-channel crosstalk is effectively reduced.

Abstract: A resource dynamic allocation device includes: a unit thread ID acquisitor that acquires identification information of an application process initialized at a time of activation, identification information of a thread which is included in the application process and to which a possible physical resource on a physical server is allocated, and identification information of the physical resource allocated to the thread; and a resource recorder/allocator that freezes all threads of the initialized application process and freezes the thread or unfreezes the thread in accordance with any one of transfer traffic, a resource load, and a load of the application process.

Abstract: A technique capable of achieving production of a biological material using photosynthetic microorganisms at low cost is provided. A method of producing a biological material includes culturing a photosynthetic microorganism in a culture medium containing dimethyl 2-oxoglutarate, and then collecting a substance produced by or accumulated in the photosynthetic microorganism.

Abstract: A softness impression control device receives designation information for designating a softness impression for a presented visual target, and obtains and outputs a deformation speed index corresponding to a softness impression index indicating a softness impression designated by the designation information using information representing a correspondence between a deformation speed index indicating a deformation speed of a visual target and a softness impression index indicating a softness impression given by the visual target deforming at the deformation speed. By presenting the presented visual target deforming at the deformation speed indicated by the output deformation speed index, it is possible to cause a designated softness impression to be given.

Abstract: A transmitting station includes a first wireless signal processing unit, a second wireless signal processing unit, and a link management unit. The first and second wireless signal processing units are configured to transmit wireless signals using different channels. The link management unit manages link states of the first and second wireless signal processing units. The link management unit is configured to: generate, when first data input is of a specific type, second data that is a duplicate of the first data; attach, first identification information indicating that the first data is original data, to the first data and attach, second identification information indicating that the second data is replicated data, to the second data; and output the first data with the first identification information attached to the first wireless signal processing unit and output the second data with the second identification information attached to the second wireless signal processing unit.

Abstract: An object of the present invention is to provide a sensing system, a sensing method, and an analyzing device using OFDR in which a sensing range of strain/temperature is less likely to be limited by a frequency sweep width. In the sensing method using OFDR, the sensing system according to the present invention employs sequential update, per measurement by one frequency sweep of the probe light, for setting the reference spectrum to the spectrum of an immediately preceding measurement, by which a spectral shift between an n-th measurement and an (n?1)th measurement is obtained, and the spectral shifts individually obtained between the measurements are integrated.

Abstract: A learning device includes processing circuitry configured to acquire speech data of a speaker, information on the speaker, conversation data of a listener, information on the listener, and a classification label of a quick response included in the conversation data of the listener, and create a learned model of estimating a type of the quick response of the listener to a conversation of the speaker using the information acquired with the classification label of the quick response as correct answer data.

Abstract: A feature quantity based on the strength of a correlation between each of a plurality of different visual stimulus patterns corresponding to a plurality of different sound sources and a pupil diameter change amount of a user is obtained, and a destination to which the user pays auditory attention for a sound from the sound source is estimated using the feature quantity.

Abstract: A wireless communication method in a wireless communication system including an exchange device and a base station device configured to perform beamforming according to the control of the exchange device, in which: the exchange device performs beamforming control of the base station device by transmitting an optically modulated signal to the base station device via an optical transmission line, the optically modulated signal being generated by modulating an intensity of an optical signal on a basis of a transmission signal to be transmitted by controlling any combination of an optical wavelength, a frequency, and an optical polarization or controlling the frequency; and the base station device inputs an electrical signal based on the optically modulated signal to a beamforming circuit having an input port corresponding to the number of combinations of the optical wavelength, the frequency, and the optical polarization or the number of frequencies to perform beamforming in a direction corresponding to the inpu

Abstract: One aspect of the present invention provides a signal processing apparatus including: filter processors, the number of the filter processors depending on the number of spatial modes of a received optical signal; a sum operator that outputs a sum of outputs of a plurality of the filter processors; an IFFT processor that performs inverse Fourier transform on the sum; an output signal selector that outputs a signal including only a predetermined part of an output of the IFFT processor; an error signal output that outputs, as an error signal, a difference between an output of the output signal selector and a desired signal; and an FFT processor that performs Fourier transform on signals including the error signal, in which the filter processors update a filter weight coefficient by using a signal obtained by performing multiplication only on a predetermined part for an output of the FFT processor and a signal obtained by performing processing including Fourier transform on the received optical signal, and the fil

Abstract: An identification device (10) includes a first identification unit (151a) that identifies first screen data including an image of a screen of an application and information regarding a screen component object that is an object of an element included in the screen, and outputs a first identification result associated with sample screen data that is screen data to be referred to, a derivation unit (152a) that derives a sample screen model used for identification in a virtualization environment on the basis of the sample screen data and the first identification result, and a second identification unit (153a) that identifies second screen data including an image of the screen and not including information regarding the screen component object, and outputs a second identification result associated with a sample screen model.

Abstract: There is provided an apparatus for creating a three-dimensional model of an object having a small diameter from point cloud data representing three-dimensional coordinates. The apparatus is configured to cluster points included in the point cloud data, obtain a curve passing through points in a cluster for at least one cluster, extract point clouds disposed on a curve coincident with the curve passing through the points, and create a three-dimensional model of the object by connecting the extracted point clouds.

Abstract: A communication control method includes: a transmission step of simultaneously transmitting beam specifying signals including identical beam identifiers from a plurality of antennas to a wireless station for each of the beam identifiers by transmission beams associated with the beam identifiers; a reception step of receiving, by each of the plurality of antennas, a report signal including a selected beam identifier indicating a beam identifier selected on the basis of reception qualities of the beam specifying signals for the respective beam identifiers in the wireless station; and a selection step of selecting an antenna to be used for communication with the wireless station on the basis of reception qualities of the report signal respectively received by the plurality of antennas, and selecting a transmission beam associated with the selected beam identifier as a transmission beam to be used for communication with the wireless station.