• 경영정보학연구
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• 제18권4호
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• pp.155-171
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• 2016

오늘날 조직은 팀으로 구성되어 있고 팀들의 지식관리를 지원하는 정보기술에 많은 투자를 하고 있으며, 팀 성과를 높이기 위한 교류기억시스템의 활용에 관한 중요성도 증가하고 있다. 본 연구의 목적은 지식관리를 지원하는 정보기술과 교류기억시스템이 팀 성과에 미치는 영향에 있어서 지식(형식지, 암묵지)의 공유 및 활용의 매개효과를 살펴보는 것이다. 이를 위해 지식관리를 지원하는 정보기술을 사용하고 있는 다양한 업종의 근로자 37개 팀 224명 응답자의 자료를 사용하여 구조방정식으로 분석하였다. 그 결과는 다음과 같다. 첫째, 지식관리를 지원하는 정보기술은 교류기억시스템에 높은 영향을 미치는 것으로 밝혀졌다. 둘째, 지식관리를 지원하는 정보기술은 직접 지식(형식지, 암묵지) 공유 및 활용에 미치는 효과보다 교류기억시스템을 매개로 하는 것이 더 높은 효과가 있었다. 그리고 지식관리를 지원하는 정보기술은 지식 활용보다 공유에 더 높은 효과가 있었다. 셋째, 교류기억시스템은 암묵지 공유, 형식지 공유, 암묵지 활용, 형식지 활용 순으로 유의미하게 나타났다. 마지막으로 지식(형식지, 암묵지) 공유 및 활용과 팀 성과와의 관계에서 암묵지 활용, 암묵지 공유, 형식지 활용 순으로 유의미하게 나타났다.

• 전자공학회논문지A
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• 제32A권10호
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• pp.81-92
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• 1995

In this paper, we present a high-level synthesis system that generates area-efficient RT-level datapaths with multiport memories. The proposed scheduling algorithm assigns an operation to a specific control step such that maximal sharing of functional units can be achieved with minimal number of memory ports, while satisfying given constraints. We propose a measure of multiport memory cost, MAV (Multiple Access Variable) which is defined as a variable accessed at several control steps , and overall memory cost is reduced by equally distributing the MAVs throughout all the control steps. Experimental results show the effectiveness of the proposed algorithm. When compared with previous approaches for several benchmarks available from literature, the proposed algorithm generates the datapaths with less memory modules and interconnection structures by reflecting the memory cost in the scheduling process.

• 한국콘텐츠학회논문지
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• 제10권6호
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• pp.80-90
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• 2010

본 논문에서는 홈 네트워크 환경에서 서비스 이동성을 지원하기 위한 에이전트 구현 방안을 제안한다. 에이전트 구현을 위해 단말 에이전트와 서버 에이전트의 설계 방안을 서술하였다. 구체적으로 단말 에이전트의 사용자 인식 모듈, 시그널링 메시지 수신 및 파싱 모듈과 서버 에이전트의 시그널링 메시지 수신 및 파싱 모듈, 멀티미디어 스위칭 모듈, 메모리 관리 모듈에 대한 설계 방안을 서술하였다. 또한 사용자의 위치 관리를 위해 IP 공유기에서 관리되어야 할 파라메터를 정의하였고 이 파라메터들이 메모리에 저장될 바인딩 테이블의 구조를 설계하였다. 성능 분석을 위해서 M/M/1/K 큐잉 모델을 이용하여 메모리 크기, 차단 확률, 활용도 간의 관계를 도출하였다. 얻어진 결과로부터 서버에이전트가 탑재되는 IP 공유기에서 요구되는 메모리의 크기를 예측할 수 있음을 보였다.

• Journal of Computing Science and Engineering
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• 제6권4호
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• pp.287-293
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• 2012

We introduce a methodology for the study of the application-level performance of time-sharing parallel jobs on a set of compute nodes in high performance clusters and report our findings. We assume that parallel jobs arriving at a cluster need to share a set of nodes with the jobs of other users, in that they must compete for processor time in a time-sharing manner and other limited resources such as memory and I/O in a space-sharing manner. Under the assumption, we developed a methodology to simulate job arrivals to a set of compute nodes, and gather and process performance data to calculate the percentage slowdown of parallel jobs. Our goal through this study is to identify a better combination of jobs that minimize performance degradations due to resource sharing and contention. Through our experiments, we found a couple of interesting behaviors for overlapped parallel jobs, which may be used to suggest alternative job allocation schemes aiming to reduce slowdowns that will inevitably result due to resource sharing on a high performance computing cluster. We suggest three job allocation strategies based on our empirical results and propose further studies of the results using a supercomputing facility at the San Diego Supercomputing Center.

• 한국정보시스템학회지:정보시스템연구
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• 제25권2호
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• pp.1-25
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• 2016

목적 최근 대학에서도 혁신역량이 매우 중요해지고 있으며, 특히 교원의 혁신역량은 대학의 경쟁력에 매우 중요한 요인이 되고 있다. 그러나 중국 대학의 경우 아직까지 지식활용이나 관리에 대한 관심이 부족하여 대학의 혁신역량이 높지 않은 상황이다. 한편, 지식경영에서 분산기억체계와 지식공유는 매우 중요한 요소로서 이 두 요소를 잘 결합하여 실행하면 지식경영에 대한 포괄적인 이해와 성과에 기여할 수 있다. 본 연구의 목적은 중국 대학 교원을 대상으로 분산기억체계, 지식공유 그리고 혁신역량 간의 구조적 관계를 조사하며, 이를 통해 혁신역량을 향상시키기 위한 실천적 방안을 제안하고자 한다. 설계/방법론/접근 본 연구의 가설을 검증하기 위해 16개의 문항을 개발하였으며, 각 문항은 리커트 5점척도를 사용하였다. 설문지는 위챗을 통해 온라인으로 배포되었으며, 설문대상자는 중국 14개 대학의 교원 팀의 리더들이다. 총 201명으로부터 설문지가 회수되었으며, 이중에서 유효한 설문지는 191개이다. 통계 분석과 가설검정을 위해 SPSS 22와 AMOS 22를 사용하였다. 시사점 가설검정결과 모든 연구가설이 채택되었다. 따라서 분산기억체계는 지식공유와 혁신역량에 정(+)의 영향을 미치며, 이 과정에서 지식공유가 분산기억체계와 혁신역량 간의 매개변수 역할을 한다는 것을 알 수 있다. 이는 동일 그룹 내의 중국 대학 교원들 간에 의사소통이 원활하고 동료들과 지식의 교환 및 협업이 활발할수록 혁신역량이 효과적으로 향상됨을 의미한다.

• JSTS:Journal of Semiconductor Technology and Science
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• 제12권3호
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• pp.331-340
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• 2012

In the deep sub-micron ICs, growing amounts of on-die memory and scaling effects make embedded memories increasingly vulnerable to reliability and yield problems. Spare columns are often included in memories to repair defective cells or bit lines during production test. In many cases, the repair process will not use all spare columns. Schemes have been proposed to exploit these unused spare columns to store additional check bits which can be used to reduce the miscorrection probability for triple errors in single error correction-double error detection (SEC-DED). These additional check bits increase the dimensions of the parity check matrix (H-matrix) requiring extra area overhead. A method is proposed in this paper to efficiently fill the extra rows of the H-matrix on the basis of similarity of logic between the other rows. Optimization of the whole H-matrix is accomplished through logic sharing within a feasible operating time resulting in reduced area overhead. A detailed implementation using fuse technology is also proposed in this paper.

• International Journal of Internet, Broadcasting and Communication
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• 제13권3호
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• pp.109-117
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• 2021

Although previous studies on social commerce have provided much insight, more studies in the perspective of social network are needed because social commerce happens within online communities or virtual groups, where buyers connect and interact with each other by sharing information. So, the purpose of this study is to investigate how transactive memory as network characteristic can affect social commerce behavior through social support and relationship quality. We verified the relational effect among social support, relationship quality, and social commerce intention in the Korean market context. Moreover, we found transactive memory capability also played an essential role in the field of social commerce. Specifically, we found consumer's transactive memory capability plays a significant moderating role in the relation between social support and relationship quality.

• ETRI Journal
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• 제36권5호
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• pp.741-751
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• 2014

Smart TV is expected to bring cloud services based on virtualization technologies to the home environment with hardware and software support. Although most physical resources can be shared among virtual machines (VMs) using a time sharing approach, allocating the proper amount of memory to VMs is still challenging. In this paper, we propose a novel mechanism to dynamically balance the memory allocation among VMs in virtualized Smart TV systems. In contrast to previous studies, where a virtual machine monitor (VMM) is solely responsible for estimating the working set size, our mechanism is symbiotic. Each VM periodically reports its memory usage pattern to the VMM. The VMM then predicts the future memory demand of each VM and rebalances the memory allocation among the VMs when necessary. Experimental results show that our mechanism improves performance by up to 18.28 times and reduces expensive memory swapping by up to 99.73% with negligible overheads (0.05% on average).

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제13권3호
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• pp.1385-1402
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• 2019

Quickly picking up some valuable information from massive manufacturing event stream usually faces with the problem of long detection time, high memory consumption and low detection efficiency due to its stream characteristics of large volume, high velocity, many variety and small value. Aiming to solve the problem above for the current complex event processing methods because of not sharing detection during the detecting process for massive manufacturing event streams, an efficient complex event processing method based on multipattern sharing is presented in this paper. The achievement of this paper lies that a multipattern sharing technology is successfully used to realize the quick detection of complex event for massive manufacturing event streams. Specially, in our scheme, we firstly use pattern sharing technology to merge all the same prefix, suffix, or subpattern that existed in single pattern complex event detection models into a multiple pattern complex event detection model, then we use the new detection model to realize the quick detection for complex events from massive manufacturing event streams, as a result, our scheme can effectively solve the problems above by reducing lots of redundant building, storing, searching and calculating operations with pattern sharing technology. At the end of this paper, we use some simulation experiments to prove that our proposed multiple pattern processing scheme outperforms some general processing methods in current as a whole.

• International Journal of Internet, Broadcasting and Communication
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• 제14권1호
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• pp.64-77
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• 2022

The advent of location-based social networks (LBSNs), and the pervasive use of smartphones have allowed individuals to easily inform their status through locational information. This led to a new trend in social media: to upload geotagged photos that illustrate the location of the images and then share them with others. In this circumstance, the current study aims to examine the use of geotags on Instagram. Further, the motivations for using geotags as well as the relationship among the motivation, satisfaction, and location information sharing behavior are analyzed. The online survey was conducted on 411 respondents of Hong Kong who are active Instagram users. Based on uses and gratification theory and goal theory, the users' motivations and goals for utilizing geotags were divided into mainly two categories; task-involved and self-involved goals. Then, four different motivations (contribution, memory aid, showing off, and reputation gaining) were further examined. The result indicated that contribution, memory aid, and reputation gaining were the goals and motivation for the users to utilize geotags on Instagram, having a positive impact on satisfaction. However, a positive relationship between showing off and geotag satisfaction was not supported. Among four different factors, memory aid was found to have the strongest influence on geotagging satisfaction. The result of testing the relationship between geotag satisfaction and further location information sharing behavior also turned out to have a positive relationship. The implications and limitations of findings are also discussed in the study.