Fujitsu Corporation

Hiroya Inakoshi

Tatsuya Asai

Hiroaki Morikawa

Shinichiro Tago

Takashi Katoh

Nobuhiro Yugami

Seishi Okamoto

Junichi Shigezumi

Keisuke Goto

Kento Uemura

Yuiko Ohta

Akira Sato

Ken Kobayashi

Kanji Uchino

Yuhei Umeda

Koji Maruhashi

Suguru Yasutomi

Masataka Matsuura

Takahisa Ando

Masaru Todoriki

Daigo Inoue

Hirokazu Hanno

A non-transitory computer-readable recording medium stores therein a learning data selection program that causes a computer to execute a process including: extracting a first input data group relating to first input data in correspondence with designation of the first input data included in an input data group input to a machine learning model, the machine learning model classifying or determining transformed data that is transformed from input data; acquiring a first transformed data group of the machine learning model and a first output data group of the machine learning model, respectively, the first transformed data group being input to the machine learning model and corresponding to the first input data group, the first output data group corresponding to the first transformed data group; and selecting learning target data of an estimation model from the first input data group.

Learning data selection method, learning data selection device, and computer-readable recording medium

An apparatus receives, at a discriminator within a generative adversarial network, first generation data from a first generator within the generative adversarial network, where the first generator has performed learning using a first data group. The apparatus receives, at the discriminator, a second data group, and performs learning of a second generator based on the first generation data and the second data group where the first generation data is handled as false data by the discriminator.

Sequential learning maintaining a learned concept

A storage medium storing a program that causes a processor to execute for acquiring distribution data indicating a distribution of spots in an area to be searched, and area data indicating positions of divided areas obtained by dividing the area to be searched; generating an adjacency matrix indicating an adjacency relation between the divided areas from the area data; generating an evaluation function for evaluating selection of the divided areas using: a variable indicating selection of consecutive divided areas, the distribution data, and the adjacency matrix; calculating a gradient of a value of the evaluation function from a current value of the variable; executing a gradient method search for updating the value of the variable using the calculated gradient; and determining selection of the divided areas as an optimal area for event occurrence analysis based on a result of the gradient method search.

Device and method for area generation

A non-transitory computer-readable recording medium stores therein an analysis program that causes a computer to execute a process including: dividing a Betti number sequence into a plurality of Betti number sequences, the Betti number sequence being included in a result of a persistent homology process performed on time series data, the plurality of Betti number sequences corresponding to different dimension of the Betti number sequence; and performing an analysis on each of the plurality of Betti number sequences.

Analysis method, analysis device, and recording medium

A data processing method includes steps of; allowing establishment of a first flag or a second flag for each of a plurality of items where corresponding values are inputted sequentially; upon detecting that a value associated with an item where the first flag is established in an Nth place is inputted and that a value associated with an item where the second flag is established in an Mth place (M is equal to or larger than N) is inputted, executing a predetermined processing to values in a range from the value that is inputted by associating with the item where the first flag is established in the Nth place to the value that is inputted by associating with the item where the second flag is established in the Mth place; and executing a processing of outputting a processed result in order from the item in the Nth place.

Data processing method, apparatus and program for processing data identified in variable range

An apparatus acquires a first piece of trajectory information from among plural pieces of trajectory information, and acquires a first planar graph from among one or more planar graphs. The apparatus generates a second planar graph, based on the first planar graph and plural pieces of position information included in the first piece of trajectory information, and extracts, from among the plural pieces of trajectory information, second pieces of trajectory information indicating trajectories passing a difference portion between the first and second planar graphs. For each of candidate graphs each obtained by excluding a reduction set of edges from the second planar graph, the apparatus calculates optimality of the each candidate graph with which an addition set of trajectories indicated by the first and second pieces of trajectory information are associated, and outputs one of the candidate graphs determined based on the calculated optimality.

Apparatus and method for online generation of an optimum route-graph

An initializable array has a plurality of blocks each having an address word and a data word, a boundary indicative of a two-division position where the plurality of blocks is divided into two divided areas and an initial value for each element of the array is stored, the boundary is a position where a ratio for the number of unwritten blocks in a first area and the number of written blocks in a second area is an integer ratio. An array control program causes a computer to execute shifting the boundary to extend the first area and generating an initialized written block in the first area; in a case where a write destination block is an unwritten block in the second area, forming a link between the initialized written block in the first area and the write destination block; and writing a write value to the write destination block.

Array control program, array control method, and array control apparatus

A processor obtains a table that contains numerical values or character strings in its cells. The processor then replaces each numerical value with a first constant value, and each character string with a second constant value. The two constant values have opposite signs. The processor generates area datasets each including first to third rectangular areas. The right side of the second rectangular area coincides with the left side of the first rectangular area. The bottom side of the third rectangular area coincides with the top side of the first rectangular area. With respect to each generated area dataset, the processor compares a sum of first and second constant values in the first rectangular area with a sum of first and second constant values in the second and third rectangular areas. The processor outputs at least one of the area datasets according to the comparison result.

Method and apparatus for extracting areas

A planar graph generation device that includes a processor that executes a process. The process includes: computing a specific value, including components of a value representing complexity of a track of the given track data, and a value representing a non-nearness between the given track data and each of all the other track data; selecting the track data with the smallest specific value among the collection; a first portion of the first track or a second portion of the second track positioned within the specific distance of each other, or a combination of the first portion and the second portion, is approximated to a specific portion such that a track of the addition target track data after addition passes through the specific portion in cases in which there are portions positioned within the specific distance of each other in a combination of the first track with the second track.

Planar graph generation device and method

A data processing method executed by a computer, the data processing method including specifying a first region range among from a data table, a first region range including a plurality of numerical value regions which are continuously disposed in a first direction, a plurality of numerical values in the plurality of numerical value regions having a relationship with a specified numerical value in an adjacent region, specifying a second region range, the second region range being specified by shifting the first region range in a second direction, the second region range including at least one character string region and at least one blank region, associating a character string in the at least one character string region and the plurality of numerical values, and outputting data that indicates an association between the character string in the at least one character string region and the plurality of numerical values.

Data processing method, non-transitory computer-readable storage medium, and data processing device

A traffic flow rate calculation method includes, by using a road network produced by representing a road system with a plurality of nodes and a plurality of edges including a stationary sensor edge in which a stationary sensor measures the number of moving bodies; obtaining the first number of observations corresponding to the number of trajectories measured by mobile sensors for each path, the each path including the at least one edge, the each of trajectories corresponding to a movement trajectory of the moving body, and the second number of observations corresponding to the number of moving bodies measured by the stationary sensor; estimating an observation rate by using the first number of observations and the second number of observations; calculating a traffic flow rate for the each path by using the estimated observation rate and the first number of observations for each path.

Traffic flow rate calculation method and device

A data output method includes: generating, by a computer, (n&#x2212;1) first conditions (n is an integer number of three or more) on a relationship between two data by dividing, in a sequential order, a common element condition in which an attribute of each of n data includes a common element, the attribute of each of the two data including the common element; extracting first data corresponding to each of n data to set the first data as a node under a condition; creating a first graph in which nodes are coupled with links based on the first condition; creating a second graph by repeatedly performing a first process, a second process and a third process; determining candidates of a combination of data from the second graph; and outputting a combination of data satisfying the common element condition from the candidates of a combination of data.

Data output method, computer-readable recording medium storing data output program and data output system

A data output method, includes: extracting, by a computer, data satisfying a first condition on one data among a plurality of conditions, from a plurality of data, as a node; creating a first graph by coupling two nodes satisfying a second condition on a relationship between two data among the plurality of conditions with a link; creating a second graph by deleting a node that does not satisfy the second condition from the first graph; determining candidates of data combination in the second graph; and outputting a data combination satisfying the plurality of conditions from the candidates of data combination.

A matching apparatus sets windows within match data, the windows each having a width larger than that in a window width condition defined in a query, and further sets windows each satisfying an event condition of a window defined in the query as temporary windows. Further, the matching apparatus checks sets of temporary windows against an interval condition and outputs events included in one or more sets of temporary windows each satisfying the interval condition, as a matching result.

Matching method and computer-readable recording medium

A route information processing apparatus includes: a processor configured to execute a program; and a memory configured to store the program, wherein, based on the program, the processor performs operations to: calculate maximum values corresponding to a Frechet distance between one line segment of one or more line segments between observation points included in a trajectory and each of sets of two nodes corresponding to the one line segment, the nodes being included in a route graph including linked paths which link nodes; and acquire a path corresponding to the trajectory having a smallest value among the maximum values of the one or more line segments.

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Tama, Japan

Hiroya Inakoshi