• Title/Summary/Keyword: Peer Indexing

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Peer Indexing Scheme using Efficient Data Dissemination in Mobile P2P Environment (이동 P2P 환경에서 효율적인 데이터 전송을 이용한 피어 색인 기법)

  • Kwak, Dong-Won;Bok, Kyoung-Soo;Park, Yong-Hun;Jeong, Keun-Soo;Choi, Kil-Sung;Yoo, Jae-Soo
    • The Journal of the Korea Contents Association
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    • v.10 no.9
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    • pp.26-35
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    • 2010
  • In this paper, we propose the peer indexing scheme using data dissemination considering content and mobility. The proposed scheme consists of an index table, a buddy table, a routing table to support the cost of data dissemination, the search accuracy and cost. In this proposed scheme, a neighbor peer is recognized through a signal function and the cost of data dissemination is reduced by timestamp message. The transmitted messages are stored in the index structure considering timestamp and weight of interests which improves search accuracy and reduces the cost of search.

A Mobile P2P Semantic Information Retrieval System with Effective Updates

  • Liu, Chuan-Ming;Chen, Cheng-Hsien;Chen, Yen-Lin;Wang, Jeng-Haur
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.9 no.5
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    • pp.1807-1824
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    • 2015
  • As the technologies advance, mobile peer-to-peer (MP2P) networks or systems become one of the major ways to share resources and information. On such a system, the information retrieval (IR), including the development of scalable infrastructures for indexing, becomes more complicated due to a huge increase on the amount of information and rapid information change. To keep the systems on MP2P networks more reliable and consistent, the index structures need to be updated frequently. For a semantic IR system, the index structure is even more complicated than a classic IR system and generally has higher update cost. The most well-known indexing technique used in semantic IR systems is Latent Semantic Indexing (LSI), of which the index structure is generated by singular value decomposition (SVD). Although LSI performs well, updating the index structure is not easy and time consuming. In an MP2P environment, which is fully distributed and dynamic, the update becomes more challenging. In this work, we consider how to update the sematic index generated by LSI and keep the index consistent in the whole MP2P network. The proposed Concept Space Update (CSU) protocol, based on distributed 2-Phase locking strategy, can effectively achieve the objectives in terms of two measurements: coverage speed and update cost. Using the proposed effective synchronization mechanism with the efficient updates on the SVD, re-computing the whole index on the P2P overlay can be avoided and the consistency can be achieved. Simulated experiments are also performed to validate our analysis on the proposed CSU protocol. The experimental results indicate that CSU is effective on updating the concept space with LSI/SVD index structure in MP2P semantic IR systems.

A Way of PC Mother Board Ethernet Test using P2P (P2P를 활용한 PC Mother Board Ethernet Test 방법 개선)

  • Lee, Young-Ho;Kim, In-Soo;Min, Hyoung-Bok;Kim, Young-Shil
    • Proceedings of the KIEE Conference
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    • 2008.07a
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    • pp.1961-1962
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    • 2008
  • Hybrid Peer-to-Peer structure is sharing resource in each peer, but various resource that is with go peer indexing and segment that search from attained in server who function is solidified that is not attained in peer itself be. Basis algorithm was based on Ethernet protocol and administration of each peer enabled in center server and peer does as can confirm breakdown existence and nonexistence through communication with center server and the internet through this directly expensive test expense and a lot of test times of existing test method of access method necessary problem effectively improve.

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An Efficient Local Peer Indexing in Mobile P2P Environment (이동 P2P 환경에서 효율적인 피어 지역 색인)

  • Kwak, dong-won;Choi, gil-sung;Bok, kyong-soo;Yoo, jae-soo
    • Proceedings of the Korea Contents Association Conference
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    • 2010.05a
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    • pp.67-69
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    • 2010
  • 본 논문에서는 이동 피어의 효율적인 콘텐츠 탐색을 지원하는 피어 지역 색인 기법을 제안한다. 제안하는 기법은 인덱스 테이블, 버디 테이블, 라우팅 테이블로 구성되며 타임스탬프 메시지를 이용하여 메시지 전송 비용을 감소시킨다. 제안하는 색인 구조는 동적인 이동성과 상황 정보를 고려하여 탐색정확도를 향상하고 탐색 비용을 감소시킨다.

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A Design and Implementation of Dynamic Hybrid P2P System with Hierarchical Group Management and Maintenance of Reliability (계층적 그룹관리와 신뢰성을 위한 동적인 변형 P2P 시스템 설계 및 구현)

  • Lee, Seok-Hee;Cho, Sang;Kim, Sung-Yeol
    • The KIPS Transactions:PartD
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    • v.11D no.4
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    • pp.975-982
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    • 2004
  • In current P2P concept, pure P2P and Hybrid P2P structures are used commonly. Gnutella and Ktella are forms of pure P2P. and forms of Hybrid P2P are innumerable. File searching models exist in these models. These models provide group management for file sharing, searching and indexing. The general file sharing model is good at maintaining connectivity. However, it is defective in group management. Therefore, this study approaches hierarchical structure in file sharing models through routing technique and backup system. This system was designed so that the user was able to maintain group efficiency and connection reliability in large-scale network.

Strategic Approaches to Solid Ranking International Journals: KODISA Journals (국제저널 육성 방향과 전망: KODISA Journals를 중심으로)

  • Youn, Myoung-Kil;Kim, Dong-Ho;Lee, Jong-Ho;Hwang, Hee-Joong;Lee, Jung-Wan
    • Journal of Distribution Science
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    • v.12 no.6
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    • pp.5-13
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    • 2014
  • Purpose - The purposes of this editorial review are twofold: firstly, to introduce the four flagship international journals of the Korea Distribution Science Association(KODISA): the Journal of Distribution Science(JDS), the Journal of Industrial Distribution & Business(JIDB), the East Asian Journal of Business Management(EAJBM), and the Journal of Asian Finance, Economics and Business(JAFEB), and secondly, to identify the direction of the KODISA journals and the roles and responsibilities of the editors of the KODISA journals. Research design, data, and methodology - To achieve the goals, firstly, this review paper addresses the current progress of the four KODISA journals: JDS, JIDB, EAJBM, and JAFEB. Secondly, this paper defines the aims and missions of the four KODISA journals. JDS publishes the articles of examining past, current, and emerging trends and concerns in the area of distribution science and economics, logistics and SCM, transportation, distribution channel management, distribution innovation and information technology, merchandising and procurement, distribution and marketing, consumer behavior, and manufacturing, wholesaling, and retailing. JDS publishes both quantitative and qualitative research as well as scholarly commentaries, case studies, book reviews and other types of reports relating to all aspects of distribution. JIDB publishes the articles of examining past, current, and emerging trends and concerns in the areas of industry and corporate behavior, industry policy making, industrial distribution and business, e-commerce, and service industry. EAJBM publishes empirical and theoretical research papers as well as scholarly commentaries, case studies, book reviews, and other types of reports relating to all aspects of East Asian business and economy. JAFEB publishes original research analysis and inquiry into the contemporary issues of finance, economics and business management in Asia, including Central Asia, East Asia, South Asia, Southeast Asia, and Middle East. The mission of JAFEB is to bring together the latest theoretical and empirical finance, economics and business management research in Asian markets. The audiences of the KODISA journals include higher education institutions, scholars, industry researchers and practitioners, scientists, economists, and policy makers throughout the world. The main mission of the KODISA journals is to provide an intellectual platform for international scholars, promote interdisciplinary studies in social sciences and economics, and become leading journals in the social science and economics category in the world. Thirdly, this paper addresses the current status of indexing in major databases of the KODISA journals, namely: Cabell's Directories, EBSCO, SCOPUS (Elsevier), and Social Sciences Citation Index® (SSCI, Thomson Reuters). Fourthly, this paper identifies the roles and responsibilities of the editors of the KODISA journals as the following: (1) Make sure that the journal be published in a timely manner and in international standards both in print and online versions. (2) Maintain the online homepage of the journal is always accessible to, and (3) Make sure that every article should go through a peer review process that meets international standards. Findings and conclusion - To accomplish the goals and missions of the KODISA journals, the editors of the KODISA journals must work together to publish high scholarly journals that meet international standards of journal publications.

Measurement Invariance of Journal Selection Criteria between Researchers in Library and Information Science and Social Science (문헌정보학 및 사회과학 분야 연구자의 학술지 선정요인에 대한 측정 동일성 검증)

  • Lee, Jongwook;Park, Jungkyu;Yang, Kiduk;Oh, Dong-Geun
    • Journal of Korean Library and Information Science Society
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    • v.52 no.2
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    • pp.235-252
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    • 2021
  • As part of effort to develop the strategies of internationalization of social science academic journals in South Korea, this study attempts to verify the measurement invariance of journal selection criteria across the groups of library and information science researchers and social science researchers. The authors collected 146 survey responses from researchers who have published at least one paper in SSCI/Scopus-indexed social science journals between 2014 and 2016. As a result of the study, it was found that the configural and partial metric invariance of the journal selection criteria held across the two groups, implying that the model of journal selection criteria is appropriate to use in the field of social science as well as library and information science. Additionally, the authors investigated the perceptions of journal selection criteria indicators in the two groups, and it was shown that researchers in both groups considered peer review and indexing in major databases important. The findings of this study could be useful for publishers or academic societies to develop improvement strategies of their journals.