公开(公告)号：US20210125103A1

公开(公告)日：2021-04-29

申请号：US17071025

申请日：2020-10-15

申请人： Hitachi, Ltd.

发明人： Yuichiro AOKI ,  Yuki KONDO ,  Yoshiki KUROKAWA

IPC分类号： G06N20/00 ,  G06K9/62 ,  G06F11/34

摘要： A computer system executing a learning process for generating a model includes: a computer having calculation cores; and a learning section. The learning section acquires performance information indicating performance characteristics of the calculation cores executing a positive sample calculation and the calculation cores executing a negative sample calculation, computes a maximum value of the number of negative samples in the negative sample calculation on the basis of the performance information, determines the number of the negative samples based on the maximum value, and generates the model by causing at least one of the calculation cores to execute the positive sample calculation using a predetermined number of pieces of training data to serve as positive samples in the training data, and by causing at least one of the calculation cores to execute the negative sample calculation using the determined number of the negative samples randomly selected from the training data.

公开(公告)号：US20160232187A1

公开(公告)日：2016-08-11

申请号：US15021801

申请日：2014-02-03

申请人： HITACHI, LTD.

发明人： Yuichiro AOKI

IPC分类号： G06F17/30 ,  G06F11/07

CPC分类号： G06F16/2228 ,  G06F11/0727 ,  G06F11/073 ,  G06F11/0778 ,  G06F11/079 ,  G06F11/323 ,  G06F16/9024 ,  G06F16/90348

摘要： Data to be subjected to a binary search is arranged in ascending order of data[1]

摘要翻译： 要进行二进制搜索的数据以数据[1]

公开(公告)号：US20220405283A1

公开(公告)日：2022-12-22

申请号：US17698434

申请日：2022-03-18

申请人： Hitachi, Ltd.

发明人： Yuichiro AOKI ,  Satoru WATANABE

IPC分类号： G06F16/2453 ,  G06F16/242

摘要： A reflection creation system 1 includes a storage device 3 that holds a history 24 of reflections and an arithmetic device 2 that selects, from the history, a query whose reflection creation source is different from that of a new query for reflection creation among queries related to a past reflection having a same content as that of a reflection represented by the new query, based on the content of the reflection, and creates a reflection based on the selected query of the past reflection.

公开(公告)号：US20220358090A1

公开(公告)日：2022-11-10

申请号：US17692993

申请日：2022-03-11

申请人： Hitachi, Ltd.

发明人： Satoru WATANABE ,  Yuichiro AOKI

IPC分类号： G06F16/14 ,  G06F16/16 ,  G06F16/13

摘要： A data search system includes an agent server that includes a storage and stores data in the storage, and a host server that manages tag management information in which a tag as a term for searching the data and a storage as a storage location of the data are associated with the data, receives a query including a search designation tag, and acquires data associated with the search designation tag from the storage location of the data by referring to the tag management information and responds to the query. The host server continuously updates the tag management information according to content and the storage location of the data.

公开(公告)号：US20180260257A1

公开(公告)日：2018-09-13

申请号：US15571161

申请日：2016-05-19

申请人： HITACHI, LTD.

发明人： Mitsuhiro OKADA ,  Akifumi SUZUKI ,  Takayuki SUZUKI ,  Yuichiro AOKI ,  Naoya NISHIO

IPC分类号： G06F9/52 ,  G06F9/46 ,  G06F9/50

CPC分类号： G06F9/524 ,  G06F9/468 ,  G06F9/5022 ,  G06F9/526 ,  G06F15/7867 ,  G06F15/7871

摘要： The PLD management system includes a PLD management unit that manages the usage status of each of one or more PLDs. The PLD management unit receives a PLD usage request from a request source module which is one of a plurality of processing modules sharing each of the one or more PLDs. when the PLD management unit receives the usage request, the PLD management unit performs control to prevent two or more processing modules including the request source module from utilizing the same PLD at the same time based on a current usage status of a PLD corresponding to the usage request and content of the usage request.