Abstract: An antenna and an antenna apparatus for vehicle that can achieve reduction in size are provided. The antenna includes a dielectric body, a radiation conductor disposed on a first principal surface side of the dielectric body, and a ground conductor disposed on a second principal surface side of the dielectric body. The ground conductor is a planar conductor disposed within a rectangular region having a length LG1 in a first direction and a length LG2 in a second direction. When the ground conductor is divided into a first region and a second region, the ground conductor includes a slit that starts extending toward the inside of the ground conductor starting from an outer edge of the ground conductor in the first region.

Abstract: The present invention is designed to make it possible to draw proper associations, when integrating pieces of information estimated in individual sensors, by associating between objects sensed by a plurality of sensors. A sensor information integration system 101 includes a radio frame analyzing section 33 configured to analyze a radio frame transmitted from a first object, to extract the first attribute information, an image analyzing section 40 configured to analyze an image, in which a second object is sensed, to extract second attribute information, and an association judging section 21 configured to judge an association between the first object and the second object, using the first attribute information and the second attribute information.

Abstract: A signal detection unit detects, from a baseband signal of a received radio wave, two types of fixed signal sections that have different communication information and are present in sufficiently shorter time than a time period in which influence of fading fluctuates, and designate the detected two types of fixed signal sections as an information-1 section and an information-2 section. An information-1 section signal processing unit clips the information-1 section from the baseband signal, and performs Fourier transform on the clipped information-1 section. An information-2 section signal processing unit clips the information-2 section from the baseband signal, and performs Fourier transform on the clipped information-2 section. A feature value computation unit computes a feature value, based on an output of the information-1 section signal processing unit and an output of the information-2 section signal processing unit.

Abstract: A radio frame analysis system includes: an analysis unit that analyzes a network configuration by performing clustering processing on a frame feature value; a distance calculation unit that calculates a distance between clusters obtained by the clustering processing; a reliability determination unit that determines reliability of a result of the clustering processing based on the distance between the clusters; an output unit that outputs a result of the analysis performed by the analysis unit; and an output timing change unit that changes a timing at which the output unit outputs the result of the analysis by changing the number of samples of the frame feature value required to output the result in accordance with the reliability.

Abstract: To provide a wireless control device, a wireless communication system, a wireless control method, and a wireless control program that are able to achieve stable communication quality. The wireless control device includes: a movement prediction unit configured to predict a movement of a wireless terminal configured to perform wireless communication; a propagation change determination unit configured to determine a propagation change degree indicating a degree of an extent that propagation of the wireless communication including received power of the wireless communication changes within a predetermined assumed delay time; and a selection unit configured to select, from among a plurality of antennas and a plurality of beams, at least any of the antenna and the beam being used for wireless communication control with the wireless terminal, based on the propagation change degree being determined by the propagation change determination unit.

Abstract: The present invention is an apparatus for creating an index for conducting a search on a database based on a resource including a text sentence.

Abstract: A control device configured to predict prediction information based on in-operation time-series data with use of a learning device, the learning device being trained, during training, (i) with time-series data, using as training data, in which pieces of radio quality information of respective antennas that are disposed in a distributed manner and that perform wireless communications with a terminal device are arranged in time series, and (ii) with assignment information, using as training data, that includes information about the antenna assigned, from the training data, to the wireless communications after a predetermined length of time, wherein the in-operation time-series data being the time-series data acquired during operation, and the prediction information including information about the antenna to be assigned, from the in-operation time-series data, to the wireless communications after the predetermined length of time.

Abstract: The present disclosure provides, for example, a non-transitory computer readable medium including program instructions that automatically extracts a clinically important mutation from genome data. The non-transitory computer readable medium including program instructions which when executed by a processor (21) causing a computer to execute a process comprising: acquiring, by the processor, training data in which genome data obtained by reading a base sequence included in a specimen and a genetic mutation according to the specimen are recorded in association with each other, for a plurality of genetic tests performed in the past; and generating, by the processor, a learning model (53) for outputting a prediction relevant to the genetic mutation based on the specimen in a case where the genome data obtained by reading the base sequence included in the specimen is input by setting the genome data as input and the genetic mutation as output.

Abstract: The present invention is an apparatus for creating an index for conducting a search on a database based on a resource including a text sentence.

Abstract: A modulation format estimation device 100 includes: a frequency shift correction unit 112 configured to estimate the amount of a frequency shift using a baseband signal acquired from a received signal and correct the baseband signal based on an estimation result; a frequency error generation unit 122 configured to generate a plurality of frequency errors from a range set based on an error occurring in the estimation of the frequency shift amount; a frequency error introduction unit 123 configured to acquire learning baseband signals in which each of a plurality of source signals modulated by different modulation formats is frequency-shifted by each frequency error; and a modulation format estimation unit 113 configured to input a corrected baseband signal to a first machine learning model created by machine learning using learning data including the plurality of learning baseband signals and a label, and estimate a modulation format of the received signal.

Abstract: A signal detection unit detects, from a baseband signal of a received radio wave, two types of fixed signal sections that have different communication information and are present in sufficiently shorter time than a time period in which influence of fading fluctuates, and designate the detected two types of fixed signal sections as an information-1 section and an information-2 section. An information-1 section signal processing unit clips the information-1 section from the baseband signal, and performs Fourier transform on the clipped information-1 section. An information-2 section signal processing unit clips the information-2 section from the baseband signal, and performs Fourier transform on the clipped information-2 section. A feature value computation unit computes a feature value, based on an output of the information-1 section signal processing unit and an output of the information-2 section signal processing unit.

Abstract: It is possible to improve recognition accuracy of an unknown transmission apparatus. A system inputs n pieces of first information (an unknown signal or a radio feature thereof), inputs the n pieces of first information to a supervised learning model that has been learned with respect to a known signal, and extracts n sample features. The system performs clustering processing on the n sample features. The system inputs m pieces of estimation target information to be estimated by an estimation apparatus that performs processing different from the clustering processing on the n unknown signals or radio features thereof, and acquires M pieces of estimation information. The system generates a relationship matrix indicating a relationship between a result classified into K groups by the clustering processing and the M pieces of estimation information.

Abstract: Provided is a control apparatus configured to acquire a measurement result including information on reception qualities of a plurality of beams, update a database including information representing a relationship between the plurality of beams for each of a plurality of propagation environments, based on the measurement result, and perform selection processing for selecting a beam using the database.

Abstract: An abnormality detection apparatus according to an example embodiment includes a reception unit for receiving radio waves, a feature amount extraction unit for extracting a plurality of feature amounts in a predetermined frequency band from the received radio waves, a recording unit for recording the plurality of extracted feature amounts and the frequency band in association with each other, and a processing unit for acquiring a plurality of feature amounts in a predetermined range from the plurality of accumulated feature amounts, determining whether or not the acquired feature amounts fall within a preset normal range, and generating, based on a result of the determination, an abnormality determination mask, threshold values for the plurality of feature amounts, in order to detect an abnormality of the radio waves being set in the abnormality determination mask.

Abstract: An object quantity estimation system 100 includes: a terminal path estimation unit 20 configured to estimate the traveling paths of wireless terminals; an actual quantity-of-people counting unit 30 configured to count the actual quantity of people that are located in each of the fixed points; a terminal detection rate calculation unit 40 configured to calculate the terminal detection rate that indicates a relationship between the quantity of the wireless terminals and the actual quantity of people, for each of the fixed points; and an actual quantity-of-people estimation unit 50 configured to determine priorities of the traveling paths, each of which passes at least one of the fixed points, and sequentially estimate the actual quantity of people having traveled on each traveling path, in descending order of the priorities of the traveling paths, based on the terminal detection rates.

Abstract: A terminal number estimating system includes: a plurality of receivers that receive a wireless signal transmitted from a plurality of terminal devices by frequency-division multiple access; a Fourier transform unit that performs a discrete Fourier transform on each wireless signal received by the plurality of reception means and outputs a discrete Fourier coefficient; and a terminal number estimation unit that estimates a position of each terminal device by clustering a resource block of each wireless signal based on each discrete Fourier coefficient.

Abstract: A radio wave anomaly detection system outputs a detection result about a radio wave anomaly that is included in received data and has been detected using a first feature that is a feature extracted from the received data every first predetermined time period, and a second feature that is a feature extracted from the received data every second predetermined time period longer than the first predetermined time period.

Abstract: The present invention provides a document display assistance system which estimates and highlights significant words in a document of a specific field. The system comprises: a database in which selection-target words and non-selection-target words are registered; a learned word-selection model having been applied with machine learning for estimating whether a word is a selection-target word; a text pre-processing unit which segments words from an accepted display-target document; a word classification unit which classifies, based on the database, the word into any of a selection-target word, a non-selection-target word, and an indeterminate word; a text post-processing unit which generates output data by imparting a predetermined attribute to a predetermined word in the display-target document; and an output unit which outputs the output data.

Abstract: A wireless terminal detection system provided with user position information acquisition means for measuring a position of a reception-side wireless terminal; pattern classification means for classifying movement patterns extracted from position history information of the reception-side wireless terminal into ordinary patterns and non-ordinary patterns based on classification results in which the movement patterns are classified in accordance with times and positions; and determination means for determining whether a transmission-side wireless terminal, which is a transmission source of radio waves received by the reception-side wireless terminal, is a suspicious terminal based on a reception history of radio waves from the transmission-side wireless terminal in time intervals classified as the non-ordinary patterns.

Abstract: A wireless terminal detection system provided with a radio wave identification unit that extracts identification information in accordance with the wireless terminals that are transmission sources; a radio wave intensity measurement unit that measures radio wave intensities of the radio waves; a distance estimation unit that estimates an attenuation rate of the radio wave intensities with respect to distance based on a number of the wireless terminals, and that estimates distances to the individual wireless terminals based on the estimated attenuation rate; and a notification unit that notifies a user that a suspicious wireless terminal has been detected if, based on the identification information, a wireless terminal among the radio wave transmission sources is determined to be registered as a suspicious wireless terminal, and the estimated distance to the wireless terminal among the radio wave transmission sources is not more than a prescribed distance.