Nippon Telegraph and Telephone Corporation

Hitoshi Seshimo

Hiroshi Konishi

Naoto Abe

Mitsuru Mochizuki

Osamu Matsuda

Yuki Kurauchi

Hirofumi Abe

Kyota Tsutsumida

Shunsuke Konagai

Chihiro Yamamoto

Keihiro Ochiai

Shinichiro Eitoku

Tae Sato

Reiko Aruga

Nobuaki Hiroshima

A route guidance apparatus according to an embodiment of the present disclosure includes a route search unit that performs a route search based on a route search instruction from a user including information indicating a departure place and a destination, a difficulty level calculation unit that calculates a difficulty level for each of the multiple routes obtained as a search result, a required time calculation unit that calculates a required time for each of the multiple routes, a spatial cognitive ability value acquisition unit that acquires a spatial cognitive ability value representing spatial cognitive ability of the user, a route selection unit that selects a route recommended to the user from the multiple routes based on the calculated difficulty level, the calculated required time, and the acquired spatial cognitive ability value, and an output unit that outputs the selected route.

Route guidance apparatus, route guidance method, and program

A barrier data collection device includes a unit estimation unit that estimates, based on sensor data with position information including height at a time when a mobile body including a flying mobile body moving in the air moves, the sensor data being collected in advance about each of geographical ranges, with an estimator, about each of sets of the geographical ranges and heights included in the sensor data in a predetermined time unit, a barrier state obtained by estimating a state of which of barrier types the set is, a shape estimation unit that estimates, about a set satisfying a condition among the sets, a barrier shape based on the sensor data and an estimation result of the barrier state estimated about each of the sets in the time unit.

Barrier data collection device, barrier data collection method, and barrier data collection program

Information relating to each link based on location information of a user can be generated with high accuracy even without measuring the location information at a high frequency. A map matching unit () associates location information of a moving user at each time with pedestrian network data () formed by a plurality of nodes and links connecting the nodes through a map matching process, and a calculation unit () calculates a passage record of a link of interest as link information based on whether or not the link of interest is connected to preceding and succeeding links in a link row acquired by aligning the links with which the location information is associated in order of times of pieces of the location information.

Link information generation method, link information generation device, and link information generation program

A training data generation device () according to the present invention includes a training data correction unit () configured to correct training data that is time-series data that indicates states of an object and in which a label corresponding to a state of the object is assigned to each section that corresponds to the state indicated by the label, wherein the training data correction unit () corrects a break time that divides a first section from a second section adjacent to the first section, based on time-series data in the first section and time-series data in the second section.

Learning data generation device, learning data generation method, and program

A delivery control device generates a recognition index on a notification space basis, the recognition index used to recognize the notification space, displays the recognition index in the notification space, and stores the recognition index in management information. The delivery control device instead stores an image characteristic extracted from a content to be displayed in the notification space as the recognition index in the management information. In this state, the delivery control device selects a notification space viewable on the augmented reality display terminal based on information on the position of the augmented reality display terminal held by a user and information on the position of the notification space and transmits the recognition index corresponding to the selected notification space and a notification content to the augmented reality display terminal. In response to the above, the augmented reality display terminal extracts the recognition index from the captured real-life video images and superposes the notification content in the position corresponding to the extracted recognition index in the real-life video images to generate and display augmented reality notification video images.

Augmented reality announcement information delivery system, and its delivery control apparatus, method, and program

To appropriately update evaluation on an evaluation target based on posts related to an evaluation target from a user. When a reliability of an evaluation information drops equal to or below a threshold related to the reliability of the evaluation information, the evaluation information representing an evaluation on an evaluation target, the reliability representing an index provided to evaluation information when the evaluation information is generated, an evaluation unitof an evaluation devicegenerates evaluation information on the evaluation target again based on post information different from post information used for generating the evaluation information on the evaluation target.

Evaluation updating device, method, and program

An information extracting device includes an acquiring unit that acquires, with regard to each information source, a data group made up of data including a content relating to an object, a location where the content was recorded, and a date and time at which the content was recorded, a generating unit that generates a word vector of which the date and time, the location, content using a weight based on the date and time, and a type of the content, are each components, for each of the data of the data group, a distance calculating unit that calculates a distance among the word vectors, a classifying unit that classifies each of data of the data group on the basis of the distance among the word vectors, and an extracting unit that calculates a reliability with regard to the classification, and extracts data from the data group on the basis of the reliability.

Information extracting device, information extracting method, and information extracting program

The present invention provides a data analysis system capable of performing analysis appropriately using a CNN model while reducing communication traffic. A data analysis systemincludes: an instrumentthat performs a conversion process of outputting compression data obtained as a result of processing observation data received via an input layer of a learned neural networkA using portions ranging from the input layer to a predetermined intermediate layer; and a devicethat performs an analysis process of inputting the compression data to a subsequent intermediate layer in a learned neural networkB, inputting data obtained by decoding the compression data, which is an output of the subsequent intermediate layer, to an output layer configured using a CNN model, and obtaining an analysis result of the observation data as an output of the output layer. The learned neural networksA andB are learned in advance so as to minimize an error between the output of the output layer when observation data of which the true analysis result obtained by analysis is known is input and the true analysis result and an error between the observation data and the decoded data.

Data analysis system, learning device, method, and program

A link combination extraction unit () acquires all the combination of link candidates from among link candidates having an angle with respect to a movement direction of a pedestrian equal to or smaller than a threshold value among link candidates for n walking route networks. The link combination extraction unit () acquires all the combinations of link candidates that do not intersect with each other among the acquired combinations of link candidates. The link combination extraction unit () acquires all the combinations of link candidates that do not connect to each other among the acquired combinations of link candidates. The link combination extraction unit () acquires all the combinations of link candidates that are not on the same straight line among the acquired combinations of link candidates. A candidate determination unit () acquires a combination of link candidates closest to position information of a pedestrian when there are a plurality of acquired link candidates.

Walking route determination device, walking route determination method, and walking route determination program

A notification control apparatus according to an embodiment includes: a reception unit that receives movement event information indicating that a movement event of a user has occurred; a schedule presence/absence determination unit that determines whether or not the user has a schedule immediately following or immediately preceding an occurrence time point of the movement event; a message generation unit that generates an advice to be notified to the user on the basis of the determination and the occurrence time point of the movement event; and a presentation unit that presents the generated advice to the user.

Notification control apparatus, notification control method, and notification control program

It is intended to allow an appropriate route search to be performed even with a geographical NW in which accessibility information includes an uninvestigated link. A route appropriateness value calculation unitcalculates, for each of a plurality of routes each connecting a departure point and a destination extracted by a route extraction unitand including links connecting individual spots including the departure point and the destination, a route appropriateness value of the route. The route appropriateness value of the route is calculated on the basis of a cost of the route calculated by a cost calculation uniton the basis of a cost representing a degree of passage difficulty which is determined for each of the links with respect to a transportation means on the basis of accessibility information of the investigated link as well as a degree of passage uncertainty representing a possibility that the route cannot be passed through by the transportation mean which is calculated by a passage uncertainty degree calculation uniton the basis of a length of the uninvestigated link included in the route. A route selection unitselects, from among the plurality of routes, the route on the basis of the route appropriateness value of the route.

Route search device, route search method, and program

Appropriate network data for an indoor map can be efficiently generated using input data including a structure of an indoor space. In a network data generation device () that generates, from the input data including at least the structure of the indoor space and information indicating a property based on the structure of the indoor space, network data, the network data including a link representing a movable space on a map and a node that is a starting point or an ending point of the link, a link/node generation unit () generates a set of links and a set of nodes based on the input data.

Network data generator, network data generation method, and program

Routes can be found while improving the convenience of guidance for users. A route-searching device includes a search-condition acquisition unit that acquires search conditions for searching a route including a starting point and a destination; a route-data storage unit that stores a link ID, the node IDs of the starting point and the end point of a link, and road network information concerning a road network and including a link length; an instruction-data storage unit that stores instruction data including a type associated with the node ID, a value for the type, and a coefficient for the value; and a route generation unit that generates route candidates including the shortest route based on the search conditions and the road network information, calculating, for each of the route candidates, an index value based on information included in the instruction data, and outputting, as a search route, the route candidate with the index value improved from the index value of the shortest route.

Route search device, route search method, and route search program

A collection device includes a deciding unit that, on the basis of data obtained in advance for each area, decides a collection interval and a collection time for each of the areas, a communication unit that acquires a current position from each of measurement terminals, and an allocating unit that, in a case where there is an area corresponding to the current position acquired regarding each of the measurement terminals, calculates a slot count of slots regarding which the collection interval and the collection time are cyclically allocated, on the basis of the collection interval and the collection time of this area, and allocates slot Nos. of an amount equivalent to the slot count, to any of the measurement terminals present in this area, by a predetermined method. The communication unit transmits, to each of the measurement terminals to which slot Nos. are allocated, the collection interval of the area in which the measurement terminal is present, the collection time of this area, the slot count of this area, and the slot No. allocated to the measurement terminal, and receives measurement information including measurement data measured on the basis of the collection interval and the collection time, from each of the measurement terminals to which slot Nos. are allocated.

Collection device, measurement terminal, collection system, collection method, measurement method, collection program, and measurement program

Time and effort to generate an electric field map to realize high-accuracy positioning is reduced. In an electric field map generation device () that generates an electric field map in which RSSI obtained when radio waves transmitted from a beacon () are observed at each of a plurality of points in the same space is associated with each of coordinates at the plurality of points, a radio wave strength acquisition unit () acquires RSSI observed at each of at least three observation points different in distance from the beacon (), a space propagation characteristics estimation unit () estimates space propagation characteristics of the radio waves transmitted from the beacon () in the same space using the acquired RSSI at the observation points, a radio wave strength estimation unit () estimates RSSI at estimation points on the basis of the estimated space propagation characteristics and distances between the estimation points different from the observation points and the beacon (), and a generation unit () generates the electric field map () using the RSSI at the observation points and the estimation points.

Growing community of inventors

Tokyo, Japan

Hitoshi Seshimo