• Title/Summary/Keyword: Knowledge Mapping

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Algorithmic GPGPU Memory Optimization

  • Jang, Byunghyun;Choi, Minsu;Kim, Kyung Ki
    • JSTS:Journal of Semiconductor Technology and Science
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    • v.14 no.4
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    • pp.391-406
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    • 2014
  • The performance of General-Purpose computation on Graphics Processing Units (GPGPU) is heavily dependent on the memory access behavior. This sensitivity is due to a combination of the underlying Massively Parallel Processing (MPP) execution model present on GPUs and the lack of architectural support to handle irregular memory access patterns. Application performance can be significantly improved by applying memory-access-pattern-aware optimizations that can exploit knowledge of the characteristics of each access pattern. In this paper, we present an algorithmic methodology to semi-automatically find the best mapping of memory accesses present in serial loop nest to underlying data-parallel architectures based on a comprehensive static memory access pattern analysis. To that end we present a simple, yet powerful, mathematical model that captures all memory access pattern information present in serial data-parallel loop nests. We then show how this model is used in practice to select the most appropriate memory space for data and to search for an appropriate thread mapping and work group size from a large design space. To evaluate the effectiveness of our methodology, we report on execution speedup using selected benchmark kernels that cover a wide range of memory access patterns commonly found in GPGPU workloads. Our experimental results are reported using the industry standard heterogeneous programming language, OpenCL, targeting the NVIDIA GT200 architecture.

A Study on Legal Ontology Construction (법령 온톨로지 구축에 관한 연구)

  • Jo, Dae Woong;Kim, Myung Ho
    • Journal of the Korea Society of Computer and Information
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    • v.19 no.11
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    • pp.105-113
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    • 2014
  • In this paper, we propose an OWL DL mapping rules for construction legal ontology based on the analyzed relationship between the structural features and elements of the statute. The mapping rule to be proposed is the method building the structure of the domestic statute, unique attribute of the statute, and reference relation between laws with TBox, and the legal sentence is analyzed, and the pattern type of the sentence is selected. It expresses with ABox. The proposed mapping rule is transformed to the information in which the computer can process the domestic legal document. It is usable for the legal knowledge base.

A Study on Transforming ICT Research Information Service into Semantic Web Environment

  • Song, Jong-Cheol;Moon, Byung-Joo;Jung, Hoe-Kyung
    • Journal of information and communication convergence engineering
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    • v.5 no.3
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    • pp.249-253
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    • 2007
  • The Research on the ICT(Information & Communication Technology) is proposed the category to IT839 strategy by Government. Government is driving to researching on technology about IT839 Strategy. By transforming this category and research information into Semantic Web environment, it is possible to search function utilizing knowledge base and information object by use of TBox and ABox. In this regard, this study proposes technology for generation of Semantic Web Document about ICT Research Information. The ontology is constructed by using category to IT839 Strategy. The features of framework proposed in this study is to have used a skill to directly map Ontology instance and in case of inability of direct mapping, proposed a skill to establish reliable Semantic Web Document by suggesting indirect mapping skill using mechanical study. In addition, it is possible to establish low cost/high quality Semantic Web Document about ICT research information.

Comparisons of Some Reinforcement Self-Learning Controllers by Cell-to-Cell Mapping

  • Pong, Chi-Fong;Chen, Yung-Yaw;Kuo, Te-Son
    • Proceedings of the Korean Institute of Intelligent Systems Conference
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    • 1993.06a
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    • pp.1029-1032
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    • 1993
  • The construction of the rulebase of a fuzzy controller is usually difficult because experts' knowledge is often hard to derive. To remedy such a problem, a number of self-learning schemes for rulebase formulations were proposed. One of the popular approaches is the reinforcement learning. Many successful examples employing such an idea were proposed and claimed to be with good results in the literature. The purpose of this paper is to discuss and make comparisons between some of the related work in order to provide a better picture regarding their performances. A numerical algorithm for the analysis of nonlinear as well as fuzzy dynamic systems, the Cell-to-Cell Mapping, is used. The analytical results reveals the true behavior of the learning schemes.

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The status of digital geological mapping and Clearing House in Korea

  • Yeon, Young-Kwang;Han, Joung-Kyu;Chi, Kwang-Hoon
    • Proceedings of the KSRS Conference
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    • 2002.10a
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    • pp.168-168
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    • 2002
  • KIGAM(Korea Institute of Geoscience and Mineral Resources) has finished to digitalize geological maps of 1/50, 000 scales in 1999. This project is supported by the Korea Ministry of Information and Communication under the name of "Knowledge and Information Resources Management Project". And via geo-clearing house, KIGAM has begun to sale the geological maps that are modified more correctly now June, 2002. The objective of this paper is to evaluate the status of digital geological mapping in Korea. And to introduce Clearing House and future plans of KIGAM.

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Learning Assembly Strategies for Chamferless Parts (학습적 방법에 의한 챔퍼없는 부품의 조립에 관한 연구)

  • Ahn, D.S.;Kim, S.Y.;Cho, H.S.
    • Journal of the Korean Society for Precision Engineering
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    • v.10 no.3
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    • pp.175-181
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    • 1993
  • In this paper, a practical method to generate task strategies applicable to chamferless and high-precision assembly, is proposed. The difficulties in devising reliable assembly strategies result from various forms of uncertainty such as imperfect knowledge on the parts being assembled and functional limitations of the assembly devices. In approach to cope with these problems, the robot is provided with the capability of learning the corrective motion in response to the force signal trrough iterative task execution. The strategy is realized by adopting a learning algorithm and represented in a binary tree type database. To verify the effectiveness of the proposed algorithm, a series of simulations and experiments are carried out under assimilated real production environments. The results show that the sensory signal-to-robot action mapping can be acquired effectively and, consequently, the chamferless assembly can be performed successfully.

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Identification of the competency gaps of the employees: DMRC

  • Kumari, Neeraj
    • The Journal of Economics, Marketing and Management
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    • v.5 no.1
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    • pp.38-43
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    • 2017
  • Purpose - The paper aims to study competency mapping in the organization and how does HR department focuses to provide a definitive road map to understand, design and implement competency models in the organization. Research Design, Data and Methodology - Descriptive research design has been used in the study. The sample size of the study is 75 consisting of employees working at DMRC, barakhamba road. A structured questionnaire was designed to collect the primary data. SPSS has been used to analyze the responses of the questionnaires. Results- DMRC frequently employs some form of competency mapping to understand how to most effectively employ the competencies of strengths of workers. Conclusion - To conclude, it was found that the company has cost effective system to recruit and select people which is working satisfactorily.

A Study on the Natural Mapping between Burner and Switch of Gas Range by Color coding (가스레인지에 있어서 칼라코딩을 통한 버너와 스위치의 자연적 대응에 관한 연구)

  • 오해춘;홍지영
    • Archives of design research
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    • v.16 no.2
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    • pp.415-424
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    • 2003
  • People store information not only in their Drain but also material things. Norman called it knowledge in the world. The general way to store the information is to paste labels. 4 burner gas range force user to make conceptual model between burner and switch to see labels. but those are cognitive stress. Norman suggested spatial analogies for natural mapping between display and control. However the way of his methods in spatial analogies was not compatible with kitchen atmosphere. To solve those problems 1 suggested color coding . This study hypothesized that the mapping between burner and switch is realized by color coding. To testy the hypothesis 1 compared A group using general gas range with B group using color coded gas range. The result showed difference between A and B in accuracy ( F (1, 38) = 17.892, p < 0.01) and response time ( F (1, 38) = 6.726 p < 0.05). The result of this test is to certify that color coding affect peoples by presenting the difference accuracy and response time. As result this study presents that color coding can be compatible the product having importance to certify in the design process.

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Characteristics of Tunnel Convergence Behaviour based on Variation of Rock Mass Rating (암반 등급 변화에 따른 터널 내공 변위 거동 특설)

  • Kim, Kwang-Yeom
    • The Journal of Engineering Geology
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    • v.18 no.4
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    • pp.545-553
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    • 2008
  • Face mapping and displacement monitoring during tunnel construction are the most influential information for the stability assessment of ground and around structures. Especially, the result of face mapping and displacement analysis is essential to the excavation and support design in NATM which is based on the drilling and blasting. However, there have not been so many studies to put those useful information into practice for decision-making process during construction. The study reviewed the tunnel behaviour based on the RMR rating and displacement monitoring when the geological condition of rock mass varies inevitably. The study analysed the crown settlement using convergence equation in order to compensate the disparity induced by the location and time of measurement and found a distinct relation between the geological condition and the line of influence. As a result of analysing the various parameters related to the tunnel convergence according to the geological condition, the study suggested the basic knowledge about the relation between face mapping and displacement behaviour of tunnel.

A study on the transformation of EO parameters using Boresight calibration (Boresight calibration을 이용한 외부표정요소 산출에 관한 연구)

  • 박수영;윤여상;김준철;정주권;주영은
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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    • 2003.10a
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    • pp.129-134
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    • 2003
  • Mobile Mapping System needs system calibration of multi sensors. System calibration is defined as determination of spatial and rotational offsets between the sensors. Especially, EO parameters of GPS/INS require knowledge of the calibration to camera frame. The calibration parameters must be determined with the highest achievable accuracy in order to get 3D coordinate points in stereo CCD images. This study applies Boresight calibration for the calibration between GPS/INS and camera, and estimates the Performance of the calibration.

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