检索结果-内蒙古大学图书馆

33rd International Conference on Massive Storage systems and Technology, MSST 2017

作者： Matsui, Sosuke Miyamura, Tsuyoshi Tanemura, Noriko Watanabe, Terue Iwasaki, Norie Software and Systems Development Laboratory IBM Tokyo Japan

An incremental backup copies data and metadata of created, updated, and deleted files since the previous backup. The performance of finding candidate files for an incremental backup becomes a limiting factor on the number of files in a file system. We propose a method for finding backup candidate files using inode bitmaps as intermediate files to improve the performance of incremental backups. Our method reduces the size of intermediate files used by the backup candidate file selection and efficiently finds deleted files by calculating the bitwise operation of inode bitmaps. We implemented our method with a file system backup function supported by IBM Spectrum Scale (formerly known as the General Parallel File System, GPFS) 4.2, and showed that our method improves the performance of backup candidate file selection up to 44.5%. © 33rd International Conference on Massive Storage systems and Technology, MSST 2017. All rights reserved.

关键词： Digital storage

来源：评论

学校读者我要写书评

暂无评论

Improving the performance of asynchronous replication with mixed-mode copying 15

Improving the performance of asynchronous replication with m...

引用

Posters and Demos Session of the 16th International Middleware Conference, MIDDLEWARE 2015

作者： Matsui, Sosuke Miyoshi, Hiroyuki Araki, Hiroshi Iwasaki, Norie Bish, Thomas W. Tokyo Software and Systems Development Laboratory IBM Japan Global Technology Service IBM Japan

ISBN: (纸本)9781450337298

IBM Scale Out Network Attached Storage (SONAS) sup- ports asynchronous replication to copy files to a remote site for disaster recovery. In SONAS R1.3.1, We developed mixed-mode copying by combining size-based copying with directory-based copying to improve the performance of asyn- chronous replication for typical real-world file tree structures where large files reside in the same directory. This com- bined method balances the workload of copying large files and prevents the performance degradation due to concur- rent copying of small files in a single directory. We veri- fied our mixed-mode copying increased the performance of asynchronous replication by up to 148% compared to either approach by itself on both virtual and physical test environ- ments. © 2015 ACM.

关键词： Trees (mathematics)

来源：评论

学校读者我要写书评

暂无评论

(WIP) IoT context descriptor: Situation detection and action invocation model for real-time high-volume transactions 3

(WIP) IoT context descriptor: Situation detection and action...

引用

3rd IEEE International Congress on Internet of Things, ICIOT 2018

作者： Abe, Mari Yamamoto, Gaku Furuichi, Sanehiro Tokyo Software and Systems Development Laboratory Watson IoT IBM Japan Ltd. 19-21 Nihonbashi Hakozaki-cho Chuo-ku Tokyo Japan

ISBN: (纸本)9781538672440

In our previous work, a runtime-specific rule was introduced that described how to detect situations and invoke actions of connected vehicles in the surrounding context. However, rule developers were required to check carefully whether each rule was consistent to the other rules or not. Our next challenge is how to simplify the validation of the application logics when the number of rules is increasing. In this paper, we propose IoT Context Descriptor, a context model for situation detection and action invocation for IoT that is aiming at accelerating easy development of situation detection and action invocation while securing the processing of real-time high-volume transactions. © 2018 IEEE.

关键词： Multi agent systems

来源：评论

学校读者我要写书评

暂无评论

An Inductive method to select simulation points

An Inductive method to select simulation points

引用

作者： Choi, MinSeong Fukuda, Takashi Goshima, Masahiro Sakai, Shuichi Graduate School of Information Science and Technology University of Tokyo Tokyo113-8656 Japan Tokyo Software and Systems Development Laboratory IBM Japan Tokyo103-8510 Japan Information Systems Architecture Research Division National Institute of Informatics Tokyo101-8430 Japan

The time taken for processor simulation can be drastically reduced by selecting simulation points, which are dynamic sections obtained from the simulation result of processors. The overall behavior of the program can be estimated by simulating only these sections. The existing methods to select simulation points, such as SimPoint, used for selecting simulation points are deductive and based on the idea that dynamic sections executing the same static section of the program are of the same phase. However, there are counterexamples for this idea. This paper proposes an inductive method, which selects simulation points from the results obtained by pre-simulating several processors with distinctive microarchitectures, based on assumption that sections in which all the distinctive processors have similar istructions per cycle (IPC) values are of the same phase. We evaluated the first 100G instructions of SPEC 2006 programs. Our method achieved an IPC estimation error of approximately 0.1% by simulating approximately 0.05% of the 100G instructions. © Copyright 2016 The Institute of Electronics, Information and Communication Engineers.

关键词： Program processors

来源：评论

学校读者我要写书评

暂无评论

Proposal of Two-Stage Patent Retrieval Method Considering the Claim Structure

引用

ACM Transactions on Asian Language Information Processing 2005年第2期4卷 190-206页

作者： Mase, Hisao Matsubayashi, Tadataka Ogawa, Yuichi Iwayama, Makoto Oshio, Tadaaki Hitachi Ltd. Systems Development Laboratory Kanagawa 244-0817 Japan Software Division Hitachi Ltd. Kanagawa 244-8555 Japan Central Research Laboratory Hitachi Ltd. Tokyo 185-8601 Japan Japan Patent Information Organization Tokyo 135-0016 Japan

The importance of patents is increasing in global society. In preparing a patent application, it is essential to search for related patents that may invalidate the invention. However, it is time-consuming to identify them among the millions of patents. This article proposes a patent-retrieval method that considers a claim structure for a more accurate search for invalidity. This method uses a claim text as input;it consists of two retrieval stages. In stage 1, general text analysis and retrieval methods are applied to improve recall. In stage 2, the top N documents retrieved in stage 1 are rearranged to improve precision by applying text analysis and retrieval methods using the claim structure. Our two-stage retrieval introduces five precision-oriented analysis and retrieval methods: query-term extraction from a portion of a claim text that describes the characteristics of a claim;query term-weighting without term frequency;query term-weighting with “measurement terms” text retrieval using only claims as a target;and calculating the relevant score by “partially” adding scores in stage 2 to those in stage 1. Evaluation results using test sets of the NTCIR4 Patent Retrieval Task show that our methods are effective, though the degree of the effectiveness varies depending on the test sets. © The importance of patents is increasing in global society. In preparing a patent application, it is essential to search for related patents that may invalidate the invention. However, it is time-consuming to identify them among the millions of patents. This article proposes a patent-retrieval method that considers a claim structure for a more accurate search for invalidity. This method uses a claim text as input;it consists of two retrieval stages. In stage 1, general text analysis and retrieval methods are applied to improve recall. In stage 2, the top N documents retrieved in stage 1 are rearranged to improve precision by applying text analysis and retrieval methods using the clai

关键词： Algorithms claim structure Experimentation Languages Patent retrieval relevant score calculation term extraction term weighting

来源：评论

学校读者我要写书评

暂无评论

Realization of a highly extensible agent framework for business applications

引用

Transactions of the Japanese Society for Artificial Intelligence 2011年第1期26卷 127-135页

作者： Yamamoto, Gaku Department of Computational Intelligence and Systems Science Tokyo Institute of Technology IBM Japan Software Development Laboratory Japan

Recently, highly extensible IT systems are required. It is said that an agent programming model provides high efficiency on application development, however, modification of both data structure and message handler program of agents are needed to add a new service. The issue is the same as the issue that other programming models have. IBM Agent Framework which we developed provides a highly extensible capability. By using the framework, a new service can be added withoutmodifying existing data structure and programming code. In this paper, we introduce the capability and explain how the framework provides the capability. We also discuss why the framework can provide the capability.

关键词： Multi agent systems

来源：评论

学校读者我要写书评

暂无评论

An object-oriented operation system configuration for local optical fiber networks 10

An object-oriented operation system configuration for local ...

引用

10th International Symposium on Subscriber Loops and Services: Communication at a Crossroads, ISSLS 1993

作者： Hara, H. Kawashima, M. Maki, K. Network Architecture Laboratory NTT Telecommunication Networks Laboratories 3-9-11 Midori-no Musashim-Shi Tokyo180 Japan Transport Processing Laboratory NTT Transmission Systems Laboratories 1-2356 Take Yokosuka-Shi Kanagawa-ken238-03 Japan Transmission Systems Software Development Project NTT Telecommunications Software Headquarters 2-1-1 Gotanda Shinagawa-Ku Tokyo141 Japan

Operation systems need to be introduced into local optical fiber networks to rapidly respond to diversifying service demands and operation requirements. This paper deals with the introduction of object-oriented technologies for local optical fiber network operation systems. The proposed object-oriented system modeling will permit the most efficient establishment and management of local optical fiber networks. First, this paper briefly describes the basic configuration of local optical fiber networks and supporting operation systems. Next, functional assignments between operation systems are descdbed in terms of their "management domains", the latter being a concept found within the Open systems Interconnection (OSI) management framework developed in ISO. Finally, a mechanism that maintains the consistency of managed objects between various management domains is explained. © 1993 IEEE.

关键词： Optical fibers

来源：评论

学校读者我要写书评

暂无评论

application of neural network to operation of power generating units

application of neural network to operation of power generati...

引用

International Forum on Applications of Neural Networks to Power systems

作者： K. Nishimura H. Iida H. Hayashi T. Asano Research and Development Center Systems & Software Engineering Laboratory Kawasaki Kanagawa Japan Fuchu Tokyo Japan

The authors propose a new method based on neural network technology to optimize the operation of generating units. The iterative use of a neural network permits less accuracy of learning and makes the method applicable to larger power systems. Simulations of transmission loss reduction and steady-state stability improvement have demonstrated the effectiveness of the proposed method.< >

关键词： Neural networks Power generation Power system modeling Power system simulation Power system stability Computer networks Optimization methods Iterative methods Propagation losses Steady-state

来源：评论

学校读者我要写书评

暂无评论

Analyzing Business Processes by Automatically Detecting KPI Thresholds

Analyzing Business Processes by Automatically Detecting KPI ...

引用

IEEE International Conference on Services Computing (SCC)

作者： Mari Abe Michiharu Kudo Tokyo Software & Systems Development Laboratory IBM Japan Ltd Tokyo Japan IBM Research - Tokyo IBM Japan Ltd Tokyo Japan

This paper describes a method for automatically detecting key performance indicator (KPI) thresholds by dividing and aggregating process instances on the basis of differences in process models. The thresholds can be used as an analysis axis of data exploration to investigate process models that are discovered from huge logs. The proposed method enables users to minimize the time needed to detect KPI thresholds through trial and error. We applied the method to real-life logs and experiment results showed that thresholds were detected for two types of KPIs. Although one type did not correlate with process patterns, the other highly correlated with them. Such findings are usually obtained from the domain knowledge of business users and analysis results acquired by data analysts with technical expertise. However, with our approach the thresholds can be detected automatically and this helps to expand process analysis for end users.

关键词： Monitoring Analytical models Context Data models Engines Insurance

来源：评论

学校读者我要写书评

暂无评论

An object-oriented operation system configuration for local optical fiber networks

An object-oriented operation system configuration for local ...

引用

International Symposium on Subscriber Loops and Services

作者： H. Hara M. Kawashima K. Maki Network Architecture Laboratory Network Architecture Laboratory Musashino Tokyo Japan Transport processing Laboratory IT Transmission Systems Laboratories Yokosuka Japan NTT Telecommunications Software Headquarters Transmission Systems Software Development Project Tokyo Japan

关键词： Optical fiber networks Technology management Resource management Laboratories Environmental management Object oriented modeling Open systems Optical network units Computer architecture System software

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：