Abstract: A wavelength cross-connect device performs a relay process in which multiple wavelength signal light beams that have been transmitted in multiple bands from a plurality of paths and demultiplexed into optical signals in the respective wavelength bands for each path are amplified, are switched to paths by contention WSSs, and are output to paths on the output side. A WXC unit performs the relay process on an optical signal in a specific wavelength band. An input-side conversion unit that converts a wavelength band other than the specific wavelength band into the specific wavelength band is provided on the input side, and an output-side conversion unit that converts the specific wavelength band after the conversion into the wavelength band prior to the conversion is provided on the output side. A directly-input optical signal in the specific wavelength band is directly output after the relay process at the WXC unit.

Abstract: Provided is a technology for creating an optimization function for solving a bandwidth allocation plan problem for determining bandwidths to be allocated for respective paths under various constraints regarding the paths for which bandwidths are to be allocated, the optimization function relating to a variable that represents a quantum state. The technology includes: an input setting unit that sets a set Path of paths, a set Edge of edges, a maximum bandwidth Max, a bandwidth p.bandwidth required by a path p, and a set e.paths of paths that include an edge e, as input to a bandwidth allocation plan problem for creating a bandwidth allocation plan for paths so as to satisfy a condition of minimizing a bandwidth allocated for the paths of the set Path as a whole under a predetermined constraint condition; and an optimization function creation unit that creates the optimization function using the input.

Abstract: A tactile device includes a wearing portion to be worn on a subject, a tactile stimulus generation portion that provides a tactile stimulus to a body surface of the subject, and a positioning portion that makes a place where the wearing portion is worn constant. The tactile stimulus generation portion is fixed to the wearing portion. The wearing portion is worn on an arm of the subject. A tactile stimulus is provided to a body surface of the arm of the tactile stimulus generation portion. The positioning portion is, for example, a glove integrally formed with the wearing portion.

Abstract: In a user credential control system, an access control server includes a token issuing unit that issues, to a service provider server, a token in which a user credential that can be acquired by the service provider server is described according to the company name and the type of a service of the service provider server described in an electronic certificate, a policy registration unit that registers a policy of an access authority of the service provider server to the user credential based on the company name or the type of the service of the service provider server, and a notification reception unit that, when the user credential of the user terminal has been changed, acquires the service provider server with the access authority to the user credential from a token according to the registered policy to notify the service provider server of the change of the user credential.

Abstract: A technology is provided where, in physical exercise performed using plate-shaped equipment, behavior of one's own body and corresponding behavior of equipment can be presented in an intuitively comprehensible manner on the basis of information acquired by a simple device configuration. Information indicating skill relating to a turn in a physical exercise performed by an exerciser performing the physical exercise using plate-shaped equipment is skill information.

Abstract: A database system includes: a distributed processing apparatus 1; and a plurality of database apparatuses 2, in which the distributed processing apparatus 1 includes: a generation unit 12 that generates an execution plan for a query related to the database apparatuses 2 based on a security policy; a transmission unit 13 that divides the query in accordance with the execution plan and transmits instructions to the corresponding database apparatuses 2, the instructions including divided queries obtained by dividing the query and transfer destinations of execution results of the divided queries; and an output unit 14 that receives the execution result of the query, from the database apparatus 2, and outputs the execution result, the database apparatuses 2 each include an execution unit 22 that executes the divided query included in the instruction received from the distributed processing apparatus 1, and transmits the execution result to another database apparatus or the distributed processing apparatus serving

Abstract: A method of laying an optical cable according to the present disclosure includes: installing a laying strip, in which the optical cable is to be embedded, on a road surface or a wall surface; forming a cut line, for embedding the optical cable, on the installed laying strip; and embedding the optical cable in the formed cut line.

Abstract: An optical multiplexing and demultiplexing method of the present disclosure includes arranging, face to face, a polished surface of a coated optical fiber whose side surface is polished to a core or a vicinity of the core and a polished surface of an optical waveguide whose propagation constant varies in a longitudinal direction and whose side surface is polished to a core or a vicinity of the core, and aligning the polished surface of the coated optical fiber and the polished surface of the optical waveguide so that desired branching ratio is obtained from one end of the coated optical fiber to the end, distal to the former end, of the optical waveguide by relatively moving the polished surface of the coated optical fiber and the polished surface of the optical waveguide.

Abstract: Provided is a retention-replacement probability generation device that is capable of generating retention-replacement probability that realizes retention-replacement perturbation of a suitable level. Included are: a global optimal solution determining unit that, outputs a global optimal solution in a case where a global optimal solution exists that is a replacement probability of the attribute values in which the transition matrix P and histogram vector expression v of the attribute values yield ?Pv?v?=0; a region generating unit that, in a case where the global optimal solution does not exist, generates a region that is defined by an inequality equivalent to conditions for both replacement probabilities corresponding to i'th and j'th attribute values satisfying ?-differential privacy, and an inequality equivalent to conditions for the replacement probability of one and the retention probability of the other corresponding to the i'th and the j'th attribute values satisfying ?-differential privacy.

Abstract: A reflection direction control method includes an arrival direction estimation step of estimating an arrival direction of radio waves transmitted by a wireless terminal to one or more reflection units each including a plurality of reflection elements capable of dynamically changing phase characteristics when the radio wave is reflected, a phase control step of controlling a phase of a radio wave reflected by each of the plurality of reflection elements so that the reflection unit reflects, in a predetermined direction, the radio wave transmitted from the estimated arrival direction, and a switching step of switching between an antenna mode in which the reflection unit is caused to receive the radio wave of which the arrival direction is estimated and a reflection mode in which the reflection unit is caused to reflect the radio wave.

Abstract: A coding device includes: a position information coder configured to convert position information indicating a position of a point included in point cloud data into a tree structure, divide the tree structure in a depth direction to generate layer groups, divide at least one of the layer groups on a basis of the position information to generate subgroups, and code the subgroup to generate a position data unit corresponding to a part of the position information; a levels of detail structure generator configured to generate, for each attribute data unit corresponding to a part of attribute information indicating an attribute of a point included in the point cloud data, a detail level up to a layer overlapping with a parent attribute data unit in the depth direction, in order from a leaf side to a root side of the tree structure; and a prediction reference point determiner configured to determine, for each of the attribute data units, in order from the root side to the leaf side of the tree structure, for each p

Abstract: It is aimed to provide an optical node, a remote control system, and a remote control method capable of improving a communication speed of an uplink signal.

Abstract: A signal filtering device includes: a separation unit that separates a predetermined number of possibility signals from a mixed signal as possibilities of a target signal; an encoding unit that encodes related information of the target signal into a first feature vector and encodes the predetermined number of possibility signals into the predetermined number of second feature vectors; and a selection unit that derives a similarity between the first feature vector and the second feature vector for each of the possibility signals, and selects a possibility signal of the possibility signals having the highest similarity as the target signal from the predetermined number of possibility signals. The selection unit may derive an inner product of the first feature vector and the second feature vector as the similarity. The predetermined number of possibility signals may be voice signals associated with the predetermined number of sound sources.

Abstract: A visualized information generation apparatus according to an embodiment includes a visualized information generating part configured to generate visualized information in response to an input of information indicating compliance, non-compliance, or both between an utterance content expressed by an utterance text and an utterance content expressed by a predetermined script. The visualized information is for visualizing a range estimated to be in compliance in a manner that is different from a manner in which a range estimated to be in non-compliance is visualized. The range estimated to be in compliance and the range estimated to be in non-compliance are as defined herein.

Abstract: An estimation apparatus includes processing circuitry configured to extract a predetermined number of similar normal pieces of packet data with a relatively high similarity to abnormal packet data from among a plurality of normal pieces of packet data based on a natural language processing model, and extract same-length packet data with the same packet length as the abnormal packet data from the similar normal packet data extracted, and compare the abnormal packet data with the same-length packet data for each byte to estimate an abnormal byte location.

Abstract: A communication method in a communication system including an optical transmission device and an optical reception device includes: detecting wave-front distortions of a reference optical signal used for wave-front observation which arrives at a first time point and a second time point before a compensation start time point at which compensation for wave-front distortion is performed, by a plurality of sensors; estimating spatial phase distributions of a plurality of atmospheric layers between the optical transmission device and the optical reception device, respectively, at the first time point and the second time point, based on the wave-front distortions detected by the plurality of sensors, respectively; predicting the respective spatial phase distributions of the plurality of atmospheric layers at the compensation start time point by using estimation results of the respective spatial phase distributions of the plurality of atmospheric layers estimated at the first time point and the second time point; co

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: A data processing device processes a depth map in which a depth value is mapped to each pixel of an image displayed on a display. There is a region setting unit, a histogram generation unit, a mapping function generation unit, a first correction processing unit, and a second correction processing unit. The region setting unit sets a contact region in contact with a display surface in the depth map that is a processing target. The histogram generation unit generates a histogram in which the number of pixels belonging to each bin is associated with one of a plurality of bins dividing a range of depth values for a non-contact region that is a region other than the contact region of the depth map. The mapping function generation unit performs clustering of the histogram into a plurality of depth layers.

Abstract: Provided is a technology for performing secure computation of a random number generation method using weighted probability distribution with high accuracy while keeping data secure. The technology includes: first vector computation means that computes a share ([[p?1]], . . . , [[p?L]]) from a share ([[p1]], . . . , [[pL]]) by using prefix sum; uniform random number generation means that generates a share ([[q1]], . . . , [[qS]]) of a vector (q1, . . . , qS) (where qi (i=1, . . . , S) is a uniform random number, and satisfies 0?qi?1) having a uniform random number as an element; and random number computation means that computes a share ([[r1]], . . . , [[rS]]) of a vector (r1, . . . , rS) having an output value as an element from the share ([[p?1]], . . . , [[p?L]]), a share ([[x1]], . . . , [[xL]]), and the share ([[q1]], . . . , [[qS]]) by using secure collective mapping.

Abstract: A radio communication method of connecting a base station with a plurality of terminal stations, the base station including a plurality of radio communication units compatible with a plurality of communication standards or communication schemes, the method including collecting, from each of the plurality of terminal stations, communication quality information representing a communication quality of the terminal station, collecting, from each of the plurality of terminal stations, communication performance information representing a communication performance of the terminal station, collecting, from each of the plurality of terminal stations, identifier information that identifies the terminal station, calculating, based on the communication quality information, the communication performance information and the identifier information that are collected, a setting policy including a setting for each of the plurality of radio communication units, and a switching policy of setting a condition for switching the pl