• Title/Summary/Keyword: Information Retrieval

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하이퍼텍스트 정보검색에 관한 연구

  • 이영자
    • Journal of Korean Library and Information Science Society
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    • v.18
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    • pp.91-138
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    • 1991
  • The paper describes the application areas of the hypertext and the relevance of hypertext principles to the information retrieval system. As to the techniques of the hypertext information retrieval the various navigation method including a guided tour, a history list, a browser, a book-mark, etc. are discussed. The query system is considered as the other technique to be integrated into the hypertext system for the enhancement of the interactive function of the information retrieval. Based on the theoretical background, a conceptual model of hypertext information retrieval system was constructed using GUIDE which was developed by P.J. Brown of Kent University. 16 bibliographic records from LISA of 1991(June) were used for the illustration of the basic operation of the system. Though the study could not reach the implementation level due to the absolute constraints of the time and experimental environments, further efforts will continue to develop a prototype system of a hypertext information retrieval. A few conclusions can be derived from the study : (1) The integration of the hypertext into the information retrieval system can be justified by permitting the end-users to have much stronger and more flexible interaction with the system. (2) The more the degree of the sofistication of the existing information retrieval system is the more the possibility of the development of an effective and user-oriented information retrieval system will be greater by integrating guide as a front end system to the underlying software. (3) The deep knowledge about the functions of information retrieval which can be enhanced by the hypertext could be acquired by the information retrieval specialists.

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Comparison of Application Effect of Natural Language Processing Techniques for Information Retrieval (정보검색에서 자연어처리 응용효과 분석)

  • Xi, Su Mei;Cho, Young Im
    • Journal of Institute of Control, Robotics and Systems
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    • v.18 no.11
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    • pp.1059-1064
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    • 2012
  • In this paper, some applications of natural language processing techniques for information retrieval have been introduced, but the results are known not to be satisfied. In order to find the roles of some classical natural language processing techniques in information retrieval and to find which one is better we compared the effects with the various natural language techniques for information retrieval precision, and the experiment results show that basic natural language processing techniques with small calculated consumption and simple implementation help a small for information retrieval. Senior high complexity of natural language processing techniques with high calculated consumption and low precision can not help the information retrieval precision even harmful to it, so the role of natural language understanding may be larger in the question answering system, automatic abstract and information extraction.

Information Retrieval System for Mobile Devices (모바일 기기를 위한 정보검색 시스템)

  • Kim, Jae-Hoon;Kim, Hyung-Chul
    • Journal of Advanced Marine Engineering and Technology
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    • v.33 no.4
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    • pp.569-577
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    • 2009
  • Mobile information retrieval is an evolving branch of information retrieval that is centered on mobile and ubiquitous environments. In general, mobile devices are characterized by lightweight, low power, small memory, small display, limited input/output, low bandwidth, and so on. Some of these characteristics make it impossible to apply general information retrieval to mobile environments without any modification. In order to relieve this problem, we design and implement an information retrieval system for mobile devices like wireless phones, PDA and handheld devices. We use document summarization techniques to alleviate the limitation of small display and user profiles to retrieve the most proper documents for each individual user for personalized search. Futhermore we use meta-search to lighten some burdens visiting several portal sites. In this paper, we have implemented and demonstrated the proposed mobile information retrieval system on the domain of travel and received good evaluation from users subjectively.

How Query by humming, a Music Information Retrieval System, is Being Used in the Music Education Classroom

  • Bradshaw, Brian
    • Journal of Multimedia Information System
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    • v.4 no.3
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    • pp.99-106
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    • 2017
  • This study does a qualitative and quantitative analysis of how music by humming is being used by music educators in the classroom. Music by humming is part division of music information retrieval. In order to define what a music information retrieval system is first I need to define what it is. Berger and Lafferty (1999) define information retrieval as "someone doing a query to a retrieval system, a user begins with an information need. This need is an ideal document- perfect fit for the user, but almost certainly not present in the retrieval system's collection of documents. From this ideal document, the user selects a group of identifying terms. In the context of traditional IR, one could view this group of terms as akin to expanded query." Music Information Retrieval has its background in information systems, data mining, intelligent systems, library science, music history and music theory. Three rounds of surveys using question pro where completed. The study found that there were variances in knowledge, training and level of awareness of query by humming, music information retrieval systems. Those variance relationships where based on music specialty, level that they teach, and age of the respondents.

Information Retrieval: A Communication Process in the 21st Century Library

  • Umeozor, Susan Nnadozie
    • International Journal of Knowledge Content Development & Technology
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    • v.10 no.2
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    • pp.7-18
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    • 2020
  • Communication is a process involving a group of interrelated elements working together for the purpose of information transfer. This paper discusses information retrieval as a communication process in the 21st century library. The difficulties associated with access to recorded knowledge through bibliographic control devices have been exacerbated by the interposition of additional encoding processes in the library and further decoding by the users. In addition, the innovation of internet/web has revolutionized the means and mode of communication process in the library by flooding information seekers with information and creating an illusion of self-sufficiency in many users. With these changes in information seeking behaviour and pattern, a cybernetic approach to information retrieval has emerged emphasizing adaptive control mechanisms and feedback processes. This paper argues that libraries should strive to continuously remain relevant by keeping abreast with changes in the behavior of information users. To this end, this paper proposes apomediatic-cybernetic model of communication, which illustrates information retrieval processes for the 21st-century library.

A Hybrid Collaborative Filtering Method using Context-aware Information Retrieval (상황인식 정보 검색 기법을 이용한 하이브리드 협업 필터링 기법)

  • Kim, Sung Rim;Kwon, Joon Hee
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.6 no.1
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    • pp.143-149
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    • 2010
  • In ubiquitous environment, information retrieval using collaborative filtering is a popular technique for reducing information overload. Collaborative filtering systems can produce personal recommendations by computing the similarity between your preference and the one of other people. We integrate the collaboration filtering method and context-aware information retrieval method. The proposed method enables to find some relevant information to specific user's contexts. It aims to makes more effective information retrieval to the users. The proposed method is conceptually comprised of two main tasks. The first task is to tag context tags by automatic tagging technique. The second task is to recommend items for each user's contexts integrating collaborative filtering and information retrieval. We describe a new integration method algorithm and then present a u-commerce application prototype.

A Framework for Legal Information Retrieval based on Ontology

  • Jo, Dae Woong;Kim, Myung Ho
    • Journal of the Korea Society of Computer and Information
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    • v.20 no.9
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    • pp.87-96
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    • 2015
  • Professional knowledge such as legal information is commonly not accessible or cannot be easily understood by the public. By using the legal ontology which is previously established, the legal information retrieval based on ontology is to use for the information retrieval. In this paper, we propose the matters required for the design and develop of the framework for the legal information retrieval based on ontology. The framework is composed of the query conversion engine of SPARQL base for query to OWL ontology and user query type engine and return value refinement engine and web interface engine. The framework does the role as the infrastructure which retrieval the legal ontology effectually and which it serves and can be used in the semantic legal information retrieval service.

A Study on the Reformation of the Education Model of Information Retrieval (정보검색 교육의 개선방안 연구)

  • 고영만
    • Journal of the Korean Society for information Management
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    • v.15 no.3
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    • pp.113-132
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    • 1998
  • The purpose of this study is to suggest a new educational model of information retrieval suited to the practical needs. For this, technical, methodological, social, and economic changes of information retrieval environment are analysed and the required roles for the information retrieval services are evaluated. In addition, this study investigated the educational situation of the subject of information retrieval at 32 universities and 2 institutions. The findings suggest that the subject of information retrieval should be seperated into theoretical instruction and practical hours in order to meet the new requirements.

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The Influence of Artificial Intelligence on the Information Retrieval System (정보검색분리(情報檢索分理)에 미치는 인공지능(人工知能)의 영향(影響))

  • Kim, Young-Whan
    • Journal of Information Management
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    • v.19 no.2
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    • pp.37-54
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    • 1988
  • The definition of information retrieval and artificial intelligence is given and the research activity in information retrieval, as well as the major artificial intelligence techniques which can be applied to information retrieval problems, is reviewed. By outlining the several artificial intelligence application in information retrieval, the potential role of artificial intelligence in information retrieval is discussed.

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The Structure of the User's Problem and It's Implication for User-Oriented Information Service - A Case Study in an Academic Research Environment - (이용자 문제의 구조와 이의 이용자 문제 지향적 정보검색에 대한 적용 - 대학원에서의 학술 연구과제를 대상으로 한 사례연구 -)

  • Park Hongseok
    • Journal of the Korean Society for Library and Information Science
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    • v.28
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    • pp.247-266
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    • 1995
  • The purpose of information retrieval is to help users solve their problems. To fulfill the purpose the user's problem needs to be focused on. The purpose of this study is to identify components and the structure of the user's problem in an academic research environment. From this study it was found that the scientific problem dealt within an academic environment is complicate and the problem is composed of 8 topical and 4 non-topical components. And they could be organized into a stucture. This study has three implications for user-oriented information retrieval. (1) The components and the structure of the problem need to be the framework for the effective information retrieval process and for the evaluation of information retrieval. (2) The research methodology used in this study can be applied to other information service situations and this will result in greater practical implication of a study for more effective information retrieval. And (3) for more effective user-oriented information retrieval, the user needs to be observed and studied in the actual' situation. This study showed that the complicate problem of the actual user can be studied in a systematic way and this resulted in important implications for information retrieval.

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