• Title/Summary/Keyword: 사례검색

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A Study of Construct Dictionary File for Password Recovery in Digital Forensics Investigation (디지털 포렌식 관점에서 패스워드 복구를 위한 사전 파일 구축 방안 연구)

  • Lim, Jong-Min;Kwon, Hyuk-Don;Choi, Jae-Min;Lee, Sang-Jin
    • Proceedings of the Korean Society of Broadcast Engineers Conference
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    • 2008.02a
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    • pp.155-158
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    • 2008
  • 기술이 발전함에 따라 컴퓨터 범죄는 점차 증가하고 있으며, 용의자는 사건의 증거가 될 수 있는 파일들에 대해 패스워드 기능을 제공하는 응용프로그램을 활용하여 증거물에 대해 의도적인 접근을 막고 있다. 이로 인해 수사관은 암호화된 파일들에 대해 접근이 매우 어려운 상황이며, 해결 방안으로써 패스워드 복구 프로그램이 대안이 될 수 있다. 하지만 대다수의 패스워드 복구 프로그램들은 단순한 전수조사 공격 방식을 지원하거나 국가별 특징을 고려하지 않은 영문용 사전파일을 적용하여 복구하고 있기 때문에, 국내수사 환경에서 패스워드 검색에 한계가 따르고 있다. 따라서 수사관이 암호화된 파일에 대해 효율적으로 검색할 수 있는 방안이 필요하며, 이를 통해 빠른 시간 내에 증거물을 복구할 수 있는 방안이 강구되어야 한다. 본 논문에서는 최근 국내외 사전구축 사례 및 동향을 조사함으로써 효율적인 패스워드 사전 파일을 구축할 수 있는 방안을 제시하며, 이와 함께 용의자의 개인적인 정보를 이용하여 최적화된 사전파일을 생성할 수 있는 방안에 대해 설명한다.

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Database design and production in ETLARS system (ETLARS 시스템에서의 데이터베이스 설계 및 생성에 관한 연구)

  • 김상도;박계숙;김희섭;홍기채;우동진;기민호
    • Journal of the Korean Society for information Management
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    • v.11 no.2
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    • pp.165-184
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    • 1994
  • DB production process includes a series of data analysis, DB design, source data input, data conversion and load, and DB operation and maintenance. Software development and operation technique for data input and DR production is similar to each other, even though each computer environment or the function of information retrieval system is a little different. The purpose of this paper is to introduce software for data input and DR production in ETLARS system, which is providing services to 6.000 users ( a s of Oct. 10, 1994) by Electronics and Telecommunications Research Institute, and to open know-how information in the production and operation of Hanguel DR.

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A Study on the Changes in Standards Related to Controlled Vocabulary and Their Implications (통제어휘 표준의 변화 및 시사점에 대한 연구)

  • Kim, Sung-Won;Kim, Jeong-Woo
    • Journal of the Korean Society for Library and Information Science
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    • v.45 no.1
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    • pp.211-232
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    • 2011
  • Thesaurus, a well-known form of controlled vocabulary, has been widely used for indexing and searching of information during the last 50 years. There also have been developments of international and national standards to provide guidelines for developing thesaurus in diverse subject areas. In recent years, the revisions of thesaurus-related standards have been made. Among them are ISO 25964 and BS 8723. This article examines the current status of revision of these standards, and discusses its implications. Based on this examination, it suggests functional requirements of thesaurus in the present information environment, and also proposes elements needed for the development of these functions.

A Review of Structure and Application of Unified Medical Language System(UMLS) (통합의학언어 시스템(UMLS)의 구성 및 적용에 대한 고찰)

  • Kim, Hye-Sun
    • Journal of Information Management
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    • v.32 no.2
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    • pp.26-39
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    • 2001
  • Various controlled vocabularies such as thesaurus and classification used for effective information retrieval contain different terms in expressing the same concept or meaning. National Library of Medicine has developed the Unified Medical Language System(UMLS) to solve the problems of information retrieval and integration resulted from the difference of concepts between different sources. The UMLS development was initiated in 1982 as a long-term project, and the 2001 edition of the UMLS consists of three parts : Metathesaurus, Semantic Network, and SPECIALIST Lexicon. This paper reviews background and structure of the UMLS including applications in PubMed, NLM Gateway.

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A Study on the Website Structures and Content Types of Online Graduation Exhibitions For 2020 domestic Visual Communication Design major cases (온라인 졸업전시 웹 사이트 구조와 콘텐츠 분석 2020년 국내 시각디자인 전공 사례를 중심으로)

  • Yoo, Yoon Seok
    • Journal of the Korea Convergence Society
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    • v.12 no.3
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    • pp.99-106
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    • 2021
  • This study aims at analyzing the web sites for 2020 art college graduation exhibitions to derive implications that should be considered for future online exhibitions. Fifteen web sites for graduation exhibitions of domestic visual design majors will be selected to analyze the usability of the web sites in the stages of arrival-search-appreciation-communication. The spread of online exhibitions accelerated by the coronavirus pandemic presents issues that were not covered in offline exhibitions. Based on the commonalities and peculiarities of graduation exhibitions by college, implications for mature and rational graduation exhibitions will be suggested.

Intelligent Brand Positioning Visualization System Based on Web Search Traffic Information : Focusing on Tablet PC (웹검색 트래픽 정보를 활용한 지능형 브랜드 포지셔닝 시스템 : 태블릿 PC 사례를 중심으로)

  • Jun, Seung-Pyo;Park, Do-Hyung
    • Journal of Intelligence and Information Systems
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    • v.19 no.3
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    • pp.93-111
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    • 2013
  • As Internet and information technology (IT) continues to develop and evolve, the issue of big data has emerged at the foreground of scholarly and industrial attention. Big data is generally defined as data that exceed the range that can be collected, stored, managed and analyzed by existing conventional information systems and it also refers to the new technologies designed to effectively extract values from such data. With the widespread dissemination of IT systems, continual efforts have been made in various fields of industry such as R&D, manufacturing, and finance to collect and analyze immense quantities of data in order to extract meaningful information and to use this information to solve various problems. Since IT has converged with various industries in many aspects, digital data are now being generated at a remarkably accelerating rate while developments in state-of-the-art technology have led to continual enhancements in system performance. The types of big data that are currently receiving the most attention include information available within companies, such as information on consumer characteristics, information on purchase records, logistics information and log information indicating the usage of products and services by consumers, as well as information accumulated outside companies, such as information on the web search traffic of online users, social network information, and patent information. Among these various types of big data, web searches performed by online users constitute one of the most effective and important sources of information for marketing purposes because consumers search for information on the internet in order to make efficient and rational choices. Recently, Google has provided public access to its information on the web search traffic of online users through a service named Google Trends. Research that uses this web search traffic information to analyze the information search behavior of online users is now receiving much attention in academia and in fields of industry. Studies using web search traffic information can be broadly classified into two fields. The first field consists of empirical demonstrations that show how web search information can be used to forecast social phenomena, the purchasing power of consumers, the outcomes of political elections, etc. The other field focuses on using web search traffic information to observe consumer behavior, identifying the attributes of a product that consumers regard as important or tracking changes on consumers' expectations, for example, but relatively less research has been completed in this field. In particular, to the extent of our knowledge, hardly any studies related to brands have yet attempted to use web search traffic information to analyze the factors that influence consumers' purchasing activities. This study aims to demonstrate that consumers' web search traffic information can be used to derive the relations among brands and the relations between an individual brand and product attributes. When consumers input their search words on the web, they may use a single keyword for the search, but they also often input multiple keywords to seek related information (this is referred to as simultaneous searching). A consumer performs a simultaneous search either to simultaneously compare two product brands to obtain information on their similarities and differences, or to acquire more in-depth information about a specific attribute in a specific brand. Web search traffic information shows that the quantity of simultaneous searches using certain keywords increases when the relation is closer in the consumer's mind and it will be possible to derive the relations between each of the keywords by collecting this relational data and subjecting it to network analysis. Accordingly, this study proposes a method of analyzing how brands are positioned by consumers and what relationships exist between product attributes and an individual brand, using simultaneous search traffic information. It also presents case studies demonstrating the actual application of this method, with a focus on tablets, belonging to innovative product groups.

Construction of Web-Based Information Retrieval System Using Old Maps :Focusing on Kyung Hee University Hyejung Museum (고지도를 이용한 웹기반 정보검색시스템 구축 방안 -경희대학교 혜정박물관 사례를 중심으로-)

  • Oh, Il-Whan;Lee, Seung-Gwan
    • The Journal of the Korea Contents Association
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    • v.11 no.3
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    • pp.56-64
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    • 2011
  • Old maps are a cultural heritage of recorded information with humanities materials and scientific value. However, there is no sufficient study on the development of web-based information system using old maps to provide the old map information. In this study, we analyze the status of the old map information on the website of the main institutions, construct the web-based information systems to provide the unified map information efficiently and systematically. It is not easy to standardize the data categories and information searching method because of the diversity and complexity of old map. So, the importance of engineering information management is growing. Therefore, the attempting to computerized humanistic old map information and the integrated approach is very important and necessary. This study provide an opportunity to combine the humanities and engineering through the convergence between information technology, humanities, and computational engineering.

Rank-Size Distribution with Web Document Frequency of City Name : Case study with U.S incorporated places of 100,000 or more population (인터넷 문서빈도를 통해 본 도시순위규모에 관한 연구 -미국 10만 이상의 인구를 갖는 도시들을 사례로-)

  • Hong, Il-Young
    • Journal of the Korean association of regional geographers
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    • v.13 no.3
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    • pp.290-300
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    • 2007
  • In this study, web document frequency of city place name is analyzed and it is used as the dataset for rank-size analysis. The search keywords are compared in the context of spatial meaning and the different domain corpus is applied. The acquired search results are applied for the further analysis. Firstly, the rank-size analysis is applied to compare the result between population and document frequency. Secondly, in case of correlation analysis, the significant changes are revealed when the spatial criteria for search keywords are increased. In case of corpus, COM, NET, and ORG shows the higher coefficient values. Lastly, the cluster analysis is applied to classify the list of cities that shows the similarity and difference. These analyses have a significant role in representing the rank-size distribution of city names that are reflected on the web documents in the information society.

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Quality Control of Web Information Service: the case of government web site (정보서비스 평가연구: 국내 행정부처 Web 정보사례)

  • Yoo, Sa-Rah
    • Journal of the Korean Society for Library and Information Science
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    • v.35 no.3
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    • pp.93-115
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    • 2001
  • Evaluating information quality of government Web service, applying quality measurement methods for web - database was conducted. This approach intended to control the quality of information service by indicating the problems and weak points in terms of retrieval, use of easiness, and user support, and by suggesting the guidelines for improvement. There were two main results to most of the investigation. The first one indicated that web information service of eighty-two percent of domestic government sites was not good enough (less than middle score). and only eight percent of them got higher score than middle point. The second result was that user support aspect was the worst part that we need to consider future course of action for service improvement. More specific guidelines were summarized at the discussion section.

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The Problem of word-for-word Translating English Thesaurus Terms into Korean (영.한 대역 시소러스의 문제점에 관한 연구)

  • Oh, Jae-Ik
    • Journal of Information Management
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    • v.28 no.3
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    • pp.46-73
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    • 1997
  • In these days, there are many studies to improve the effectiveness of retrieval systems. One method is to use thesaurus in the systems. But the establishment of the saurus independently is very difficult and requiers a great deal of time and labor. The goal of this research is to examine which problems there are. The texts used in the thesis were "Thesaurus of ERIC descriptors(7th ed.1977)" and "KEID Thesaurus(1981)" established by translation. The results of the thesis were as follows, First, there were many differences of equivalence classes of terms between English and Korean. Second, the errors of translation made words inadequate to use as a descriptors. Third, because of differences of traditions, thought and culture, associative relationship and hierarchical relation did not coincide between terns, Fourth, because the terms of the thesaurus of ERIC descriptors serve Western usages, the terms used in Korea were not or insufficient. So it way necessary to add our own therms. As mentioned above, translating a thesaurus for use as a documentation language for indexing and retrieval is not the optimum way of building up a thesaurus.

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