Abstract: Even if an object to be detected is not remarkable in images, and the input includes images including regions that are not the object to be detected and have a common appearance on the images, a region indicating the object to be detected is accurately detected. A local feature extraction unit 20 extracts a local feature of a feature point from each image included in an input image set. An image-pair common pattern extraction unit 30 extracts, from each image pair selected from images included in the image set, a common pattern constituted by a set of feature point pairs that have similar local features extracted by the local feature extraction unit 20 in images constituting the image pair, the set of feature point pairs being geometrically similar to each other.

Abstract: An ADC (12) in an optical receiver (1) generates a sample signal composed of time series samples by oversampling a received signal that is an electrical signal converted from an optical signal by a light receiving unit (11). A symbol timing detection unit (132) of a DSP unit (13) detects a symbol timing in the sample signal. When it is determined that a symbol timing is appearing at a longer interval than a predetermined interval based on this detection result, a symbol timing adjusting unit (133) skips one or more samples included in the sample signal to read out samples at the predetermined interval, while when it is determined that the symbol timing is appearing at a shorter interval than the predetermined interval, the symbol timing adjusting unit inserts the same samples as one or more samples included in the sample signal immediately after the one or more samples to read out the samples at the predetermined interval.

Abstract: An object is to easily convey by suction an optical module equipped with optical fibers having ends coupled to optical receptacles and mount the optical module on a substrate. An optical module according to the present invention includes an optical device to which optical fibers having ends coupled to optical receptacles are optically coupled and also includes a carrier composed of a substrate and adhesive layers formed on the upper and lower surfaces of the substrate. The optical device is bonded on the adhesive layer formed on the lower surface of the substrate. Part of the optical fibers and the optical receptacles are bonded on the adhesive layer formed on the surface of the substrate.

Abstract: The present disclosure relates scaling out servers that performs Layer 3 (L3) termination. In particular, the server includes: a packet receiving unit which receives a packet from any load balancer performing L3 termination via an Layer 2 (L2) switch; an assignment unit which, by referencing a MAC/MARK number correspondence table in a storage unit, assigns to the received packet a MARK number that corresponds to a transmission source MAC address; a recording unit which records a MARK number for connection of the received packet in a connection/MARK number correspondence table; and a packet transmission unit which, when a reply packet to the received packet is to be transmitted, routes the reply packet via the L2 switch by acquiring, from a MARK number/GW correspondence table in the storage unit, an IP address of a load balancer corresponding to the MARK number associated with the connection of the received packet.

Abstract: In a wireless information collecting method executed by at least one user terminal device that measures wireless information used in a site survey and a server device that stores the wireless information and performs the site survey, the user terminal device performs a step of periodically measuring a current position and transmitting positioning information indicating the current position to the server device, and a step of measuring the wireless information in accordance with a wireless information measurement number instructed by the server device and transmitting wireless information including a position and time to the server device.

Abstract: To efficiently determine intermediate data for use with an aggregate function while keeping confidentiality, a bit decomposition unit generates a share of a bit string by bit decomposition and concatenation of key attributes. A group sort generation unit generates a share of a first permutation, which performs a stable sort of the bit string in ascending order. A bit string sorting unit generates a share of a sorted bit string obtained by sorting the bit string with the first permutation. A flag generation unit generates a share of a flag indicating a boundary between groups. A key aggregate sort generation unit generates a share of a second permutation, which performs a stable sort of the negation of the flag in ascending order. A de-duplication unit generates shares of de-duplicated key attributes. A key sorting unit generates shares of sorted key attributes by sorting the de-duplicated key attributes.

Abstract: An aggregate sum is efficiently obtained while keeping confidentiality. A prefix-sum part computes a prefix-sum from a share of a sorted value attribute. A flag converting part converts a format of a share of a flag representing the last element of a group. A flag applying part generates a share of a vector in which a prefix-sum is set when a flag representing the last element of a group is true, and a sum of the whole is set when the flag is false. A sorting part generates a share of a sorted vector obtained by sorting a vector with a permutation which moves elements so that the last elements of each group are sequentially arranged from beginning. A sum computing part generates a share of a vector representing a sum for each group.

Abstract: To enable provision of appropriate information for a user query even in a case there are multiple information provision modules which are different in answer generation processing. A query sending unit 212 sends a user query to each one of a plurality of information provision module units 220 that are different in the answer generation processing and that each generate an answer candidate for the user query. An output control unit 214 performs control such that the answer candidate acquired from each one of the plurality of information provision module units 220 is displayed on a display unit 300 on a per-agent basis with information on an agent associated with that information provision module unit 220.

Abstract: A coding amount estimation device includes: a feature vector generation unit that generates a feature vector on the basis of a feature map generated by an estimation target image and at least one filter set in advance; and a coding amount evaluation unit that evaluates a coding amount of the estimation target image on the basis of the feature vector.

Abstract: A recovery support apparatus includes an index value calculation means which calculates a predetermined index value with respect to a recovery work sequence on the basis of the recovery work sequence indicating a work procedure for recovery from an abnormality that has occurred in an apparatus group constituting a communication network, and an output means which outputs the index value calculated by the index value calculation means to a predetermined output destination.

Abstract: An optical transmission system includes a plurality of transmission lines through which a mode-multiplexed signal obtained by multiplexing a plurality of optical signals of different types of modes is transmitted, and one or more mode group permutation units provided between the plurality of transmission lines. The mode group permutation unit changes, on a mode-group-by-mode-group basis, an optical signal of a mode belonging to a mode group to an optical signal of another mode belonging to a mode group after permutation corresponding to the mode group in such a manner that modes are interchanged between at least some of the plurality of optical signals multiplexed into the mode-multiplexed signal input from one of the plurality of transmission lines on an input side, and outputs the mode-multiplexed signal after mode interchange to one of the plurality of transmission lines on an output side.

Abstract: An object of the present invention is to provide an optical communication system and an optical communication method capable of achieving a long transmission distance with a passive element and obtaining redundancy of a ring topology. The optical communication system according to the present invention is a PON system having a ring configuration, in which an unequal branch optical splitter having a left-right symmetrical configuration is disposed in a trunk fiber wired in a loop shape. An OLT and an ONU have a configuration in which two sets of Tx (transmitter) and Rx (receiver) are mounted. Two sets of Tx (transmitters) and Rx (receivers) in each of a plurality of ONUs are respectively connected to left and right symmetrical ports of one unequally branched light beam SP.

Abstract: A transmission apparatus including the number of antennas different from a reception apparatus and performing transmission by SC-MIMO to and from the reception apparatus includes a training signal generation unit that generates a known signal predetermined, a CP addition unit that adds a CP to each symbol of a transmission signal including the known signal, a weight generation unit that generates a transmission weight based on a transposed adjugate matrix that is a product of a channel matrix estimated based on the known signal by the reception apparatus and a complex conjugate transpose of the channel matrix, and a transmission beam formation unit that uses the transmission weight to form a transmission beam for the transmission signal where the CP is added.

Abstract: A wavelength dispersion compensating apparatus, including: a signal light generating unit which generates, from predetermined signal light, signal light having a phase correlation centered on a degenerate frequency of a phase sensitive amplifier; a dispersion compensation transmission path which compensates for a wavelength dispersion of the predetermined signal light included in the signal light; a filter which compensates for a residual wavelength dispersion after compensation by the dispersion compensation transmission path of the predetermined signal light included in the signal light; a phase sensitive amplifier which amplifies the signal light input via the dispersion compensation transmission path and the filter; a residual wavelength dispersion calculating unit which calculates a residual wavelength dispersion amount based on a measurement result of output light amplified by the phase sensitive amplifier; and a filter control unit which controls the filter so as to add a wavelength dispersion that can

Abstract: A technology for simulating physiological activity more appropriately is provided. An optimization apparatus according to an embodiment includes an estimation unit, a first calculation unit, a second calculation unit, and an updating unit. The estimation unit estimates a physiological parameter indicating a physiological state using an estimation model. The first calculation unit calculates a first difference value based on a first estimated value of the physiological parameter in a first time interval and an actually measured value of the physiological parameter in the first time interval. The second calculation unit calculates a second difference value based on the first estimated value and a second estimated value of the physiological parameter in a second time interval previous to the first time interval. The updating unit adjusts the estimation model based on the first difference value and the second difference value.

Abstract: A terminal function device and a proxy transfer agent device generate, on mutually-connecting physical lines, logical paths to be correlated with physical port transmitting/receiving units. In a case of receiving a signal received at one of the physical port transmitting/receiving units, the terminal function device sends the signal out to a logical path corresponding to the physical port transmitting/receiving unit that received this signal. In a case of receiving a signal through the logical path, the proxy transfer agent device correlates the signal with information identifying the physical port transmitting/receiving unit corresponding to the logical path that received this signal, and transfers the information along with the signal. Ina case of sending out a signal to the logical path, the proxy transfer agent device sends out the signal to the logical path corresponding to the physical port transmitting/receiving unit specified as a transfer destination of the signal.

Abstract: An optical transmission system including: N transmitters, each of the N transmitters being configured to convert one of N electrical signals indicating data sequences different from one another into an optical signal; a signal generator configured to cause N optical splitters to split the N optical signals output from the N transmitters to convert the N optical signals into M optical signals; a multiplexer configured to convert the M optical signals converted by the signal generator into one mode-multiplexed signal that is excitable in at least M modes; a demultiplexer configured to convert the mode-multiplexed signal converted by the multiplexer into M optical signals; M receivers, each of the M receivers being configured to convert one of the M optical signals converted by the demultiplexer into the electrical signal; and a signal detector configured to perform signal separation on the M electrical signals converted by the M receivers to extract the N data sequences.

Abstract: This cooling apparatus includes a tube (10) having an opening portion (10a) in one end portion in a longitudinal direction thereof, a cap (30) capable of opening/closing the opening portion (10a), a non-freezing drinkable coolant (20) that fills the tube (10), and a container (50) that contains the tube (10) filled with the coolant (20). The tube has a constricted portion (10d) having a reduced inner diameter.

Abstract: Provided is a technology for creating an optimization function for solving a scheduling problem for creating a process execution plan such that execution of all processes will be completed by a predetermined time point under constraint conditions regarding the processes and resources required by the processes, the optimization function relating to a variable that represents a quantum state. The technology includes: an input setting unit that sets a set P of processes, a set R of resources, a maximum time point End, the time p.time it takes to execute a process p, a set p.precede of processes of which execution needs to be completed before execution of the process p is started, and a set r.

Abstract: An attack communication detection device that is robust against a deviation from the design value of a communication interval is provided.