Nec Corporation

Nec C Orporation

Takuya Araki

Shoji Nishimura

Jianquan Liu

Yasufumi Hirakawa

Jun Suzuki

Yuki Hayashi

Masaki Kan

Harumichi Yokoyama

Ting Chen

Haoran Li

A computation unitperforms, for each column of a target matrix to be standardized, a computation process to compute the average and standard deviation of the value of each component of the column. A first dividing unitperforms, for each column of the target matrix, a first dividing process to divide the value of each component of the column by the standard deviation computed based on the column. A second dividing unitperforms, for each column of the target matrix, a second dividing process to divide the average computed based on the column by the standard deviation computed based on the column. A generation unitwhich arranges the quotients computed by a plurality of second dividing processes, in a row in the order of the columns of the target matrix from which the quotients are computed, thereby generating a row vector.

Sparse matrix standardization device, sparse matrix standardization method, sparse matrix standardization program, and data structure

Provided are an area allocation device and the like that can efficiently allocate memory volume for processing of matrix operations. The area allocation device specifies array identifiers representing positions of elements storing a value different from a predetermined value in each array of subarray information in array information, arrays consisting of a plurality of element, the array information including a plurality of information representing the arrays, the subarray information corresponding to at least a part of the arrays; calculates a number of the specified array identifiers; and allocates a memory area having a memory volume depending the calculated number.

Area allocation device, area allocation method, and non-volatile recording medium

A data processing apparatus () of the present invention includes a unit that retrieves a predetermined subject from moving image data. The data processing apparatus includes a person extraction unit () that analyzes moving image data to be analyzed and extracts a person whose appearance frequency in the moving image data to be analyzed satisfies a predetermined condition among persons detected in the moving image data to be analyzed, and an output unit () that outputs information regarding the extracted person.

Data processing apparatus, data processing method, and non-transitory storage medium

An information processing device includes: a feature quantity obtaining unit which obtains a feature quantity of an object to be extracted, which is extracted from a retrieval target, and specific information to be specified an appearing location of it; a feature quantity holding unit which, when storing the feature quantity in a feature quantity table, adds new identification information to the feature quantity and holds the feature quantity in the feature quantity table when a similar feature quantity in which a similarity with the feature quantity is no less than a threshold is not included in the feature quantity table, and outputs identification information of the similar feature quantity as identification information of the feature quantity when the similar feature quantity is included in the feature quantity table; and a retrieval table holding unit which holds the specific information associated with the added identification information or the outputted identification information.

Information processing device, data processing method therefor, and recording medium

A parallel union control device includes: at least one memory storing a set of instructions; and at least one processor configured to execute the set of instructions to cause each of the plurality of arithmetic units included in an parallel computer including a vector register to: successively compare input elements of a pair of input sets to undergo union processing, the pair being stored in an input operand register in the vector register; select one of the input elements as an output element of an output set, based on a comparison result; and store the output element into an output operand register in the vector register; shift a pointer pointing to the input element; load the input sets into the input operand register from a memory; store the output sets into the memory from the output operand register; and determine whether union processing performed in parallel is ended.

Parallel union control device, parallel union control method, and storage medium

Provided is an analysis apparatus () including a person extraction unit () that analyzes video data to extract a person, a time calculation unit () that calculates a continuous appearance time period for which the extracted person has been continuously present in a predetermined area and a reappearance time interval until the extracted person reappears in the predetermined area for each extracted person, and an inference unit () that infers a characteristic of the extracted person on the basis of the continuous appearance time period and the reappearance time interval.

Analysis apparatus, analysis method, and storage medium

One-to-one join is widely used in machine learning and business intelligent applications. Disclosed herein is an efficient method for one-to-one join to reduce memory usage and thus disk I/O accesses with limited memory. Disclosed method outputs and removes a pair of tuples immediately when they are matched to each other to allow join results to be generated without reading entire tables. Meanwhile, disclosed method increases matching rate for in memory blocks through the predication of data distribution patterns based on both statistics and history block matching information.

Method for efficient one-to-one join

An information processing apparatus comprises a first conversion part storing a partial matrix for columns having a predetermined number or more of non-zero elements among columns in a matrix in a first format, and a second conversion part storing a partial matrix for the other columns in the matrix in a second format.

Information processing apparatus, information processing method, data structure and program

Provided is an accelerator control apparatus including: an accelerator that is configured to store at least one segment data item of a plurality of segment data items obtained by dividing data, and a boundary data item that is data item being included in a segment data item adjacent to the at least one segment data item; and data management unit to determine whether a width of data which is included in the boundary data item and is consistent with the segment data item adjacent to the at least one segment data item, is equal to or larger than a reference width representing a width of data referred to in processing executed by the accelerator.

Accelerator control apparatus, accelerator control method, and storage medium

A distributed processing device includes an object storage unit that stores a continuation object including at least one of plural processes constituting a task and containing data of the task that is being processed, a processing unit that executes the continuation object retrieved from the object storage unit, and a storage processing unit that stores, in an execution state file, data stored in the object storage unit.

Distributed processing device and distributed processing system

A distributed execution system includes an output-side pipe worker that operates on a node same as an output-side worker realized by a first distributed program, and an input-side pipe worker that operates on a node same as an input-side worker realized by a second distributed program, receives output data on the output-side worker from the output-side pipe worker, and transfers it to the input-side worker, in which the output-side pipe worker acquires, from the output-side worker, output data together with a sequence number indicating an order of the output data to be transmitted to the input-side worker, acquires a restore sequence number corresponding to an execution state of the input-side worker, compares the sequence number and the restore sequence number, and does not forward, to the input-side pipe worker, the output data acquired together with the sequence number indicating the order equal to or earlier than the restore sequence number.

Distributed execution system and distributed program execution method

While a server () that executes a first web application program that accomplishes a web application that provides a service over the Internet so as to provide the service is not connected to a client () that receives the service, the client () executes a second web application program that accomplishes a web application, records a procedure in which the client () has executed the second application program, and transmits the recorded procedure to the server () just after the client () and the server () are connected and then the server () executes the first web application based on the procedure transmitted from the client ().

Growing community of inventors

Tokyo, Japan

Takuya Araki