• Journal of the Korean Society for Library and Information Science
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• v.47 no.2
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• pp.75-101
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• 2013

This study analyzed the effect of metacognition to the information-seeking behaviors of 250 undergraduate students. For this, metacognition was examined by the inspection form that the Educational Psychology Programs of the Department of Education, at Seoul National University, developed in 2005. The information-seeking behaviors were examined by the observance of the established information-seeking performances and through a survey. As a result of the analysis, metacognition affected the items of the survey for the information-seeking behaviors, excluding one item. As metacognition is the cognitive characteristics acting after the cognitive process, it affected thinking activities that were conducted by the brain. In addition, metacognition affected the seeking process, the results of seeking, and the general information-seeking behaviors. Therefore, the study of metacognition is effective in the overall aspects of information-seeking behaviors including the seeking process, the results of seeking, and the general information-seeking behaviors.

• Journal of the Korean Society for Library and Information Science
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• v.31 no.2
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• pp.177-197
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• 1997

The study measured whether two search engines retrieve different Web documents for 6 queries. Two different search engines, Alta Vista in terms of keyword search engines and Yahoo in terms of subject directory engines were measured using as criteria, total number of documents retrieved, total number of relevant documents retrieved, recall and precision ratios. In addition, Alta Vista was suitable for specific and technical terms, while Yahoo was effective for general and plain terms. However, more elaborate research needs to be tested in terms of query characteristics.

• Journal of the Korean Society for Library and Information Science
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• v.32 no.2
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• pp.189-209
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• 1998

The purpose of this study is to verify the difference of behavioral characteristics between the primary and secondary search, the influence of the primary search results on Online databases. Data is collected by surveying the professional and end-user searchers in 33 online information service centers. 262 valid responses out of 308 questionaire are analyzed by the t-test, ANOVA, $\chi^2-test$ using SAS program. The major findings are as follows : (1) Preparatory searches(the levels of expectation, the degree of question comprehension), search results(the number of output documents, precision ratio, recall ratio, degree of satisfaction) are significantly different between the primary and secondary searches on Online Databases. But the number of search terms, Boolean logics, files, systems, relevant documents are not significantly different between the primary and secondary searches. (2) The results of the primary search affect the secondary searches. The number of output documents in the primary search affect the modification of search strategies and objects in the secondary searches. The number of relevant documents affect the variation of search scopes in the secondary searches. The precision ratio affect the change of search strategies and scopes in the secondary searches.

• Journal of Korean Society of Transportation
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• v.26 no.1
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• pp.127-135
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• 2008

Generally, optimum shortest path algorithms adopt single attribute objective among several attributes such as travel time, travel cost, travel fare and travel distance. On the other hand, multi-objective shortest path algorithms find the shortest paths in consideration with multi-objectives. Up to recently, the most of all researches about multi-objective shortest paths are proceeded only in single transportation mode networks. Although, there are some papers about multi-objective shortest paths with multi-modal transportation networks, they did not consider transfer problems in the optimal solution level. In particular, dynamic programming method was not dealt in multi-objective shortest path problems in multi-modal transportation networks. In this study, we propose a multi-objective shortest path algorithm including dynamic programming in order to find optimal solution in multi-modal transportation networks. That algorithm is based on two-objective node-based label correcting algorithm proposed by Skriver and Andersen in 2000 and transfer can be reflected without network expansion in this paper. In addition, we use non-dominated paths and tree sets as labels in order to improve effectiveness of searching non-dominated paths. We also classifies path finding attributes into transfer and link travel attribute in limited transit networks. Lastly, the calculation process of proposed algorithm is checked by computer programming in a small-scaled multi-modal transportation network.

• Journal of the Korean Society for information Management
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• v.29 no.3
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• pp.169-186
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• 2012

This study examined the relation between personality types and users' searching trait and satisfaction when interacting with OPAC system. In this study, personality type was measured by the KEPTI Enneagram tools. Data was collected through four questionnaires, pre-test, TaskA, TaskB, and post-test survey. The results indicated that there was a statistically significant difference in perceptions on the expected ease of search, completion time, adequacy of search time, usefulness of search results, and performed ease of search within the Three Triads of Enneagram. Also a statistically significant difference was found on familiarity and interest in the selected queries within the Hornivian group.

• Korean Journal of Cognitive Science
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• v.12 no.1_2
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• pp.65-76
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• 2001

This study investigated the relationships between hypermedia users information processing styles and navigational patterns. Three aspects of navigational patterns were investigated: (a) navigational breadth patterns which reveal how comprehensively users access, (b) navigational path patterns which display what sequences users follow. and (c) navigational method patterns which show what methods u users employ when using the system. Information processing styles were measured by the Human Information Processing Styles(HIPS) Survey. The subjects were 102 undergraduate students enrolled in management courses at a university. Participation was voluntary 34 students were selected for each of left, right, and integrated information processor group. The subjects interacted with A.g.i.l.e. TrainerTM program to complete two types of searching tasks 'open-ended and closed-ended tasks' Findings indicated that the information processing style seems to play an important role in how an individual interacts with the hypermedia systems.

• Journal of the Korean Society for information Management
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• v.24 no.2
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• pp.29-44
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• 2007

The purpose of this study was to explore whether the concept of amount of invested mental effort (AIME) developed in the field of educational psychology can help explain why people put so little effort into online searching. In this experimental study, two information retrieval systems - a web search engine and a university library system - were used to make a comparison. The data were collected from 15 undergraduate students through background questionnaires, think-aloud protocols, search logs, post-search questionnaires, and post-task interviews. The findings indicate that perception of the web's "easy-ness" and high levels of self confidence in searching capability led the subjects to put less effort into web searching than they do into library system searching. In addition, the perceived difficulty of search task influenced the extent of mental effort invested. The AIME proved a useful framework for understanding search behavior and user experience for both web search engines and library systems.

• Korean Journal of Culture and Social Issue
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• v.16 no.3
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• pp.289-310
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• 2010

The purpose of this study was to examine how political interest, political ideologies, and information-searching goals influence the amount of information voters search, the ways in which people search for information about political candidates, and the type of information they select. The results showed that the participants under accuracy goal searched much more information and the participants under the high level of interest were not affected by conservative ideology, but the participants with the low level of interest were influenced by the liberal ideology and viewed substantially more information. And most of participants had the attribute-centered searching pattern. The social policies were accessed most, however, the information about party and personal background of a candidate were found least.

• Proceedings of the Korean Society for Information Management Conference
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• 1999.08a
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• pp.105-108
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• 1999

기하급수적으로 늘어나는 인터넷상의 정보, 이를 이용하는 이용자의 증가와 더불어 웹 탐색도구의 수도 그만큼 증가추세에 있다. 웹 탐색도구가 1994년 처음 개발된 이래 이제까지 웹 탐색도구의 개발자들은 개발자체에 초점을 맞추어왔다. 그러나 성공적인 시스템은 시스템의 자체성능도 중요하지만 이를 이용하는 이용자들이 이해하기 쉽고 이용하기에 편리한 웹 탐색도구로 개발하는 것은 시스템의 효용성 측면에서 더욱 중요한 문제이다. 이에 본 연구는 계명대학교 학생을 대상으로 각 유형별로 가장 잘 그 유형을 대변하는 탐색도구를 선정하여 이를 직접 탐색케 함으로써 이를 토대로 웹 탐색도구를 이용하는 이용자그룹간의 이용능력과 이용행태 및 그들의 평가를 분석하였다.

• Proceedings of the Korea Information Processing Society Conference
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• 2009.04a
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• pp.1330-1331
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• 2009

본 연구에서는 GERAN (GSM EDGE Radio Access Network) 망에서 다양한 무선환경에 따른 셀 재탐색을 연구하였으며, 시계열분석을 통하여 재탐색 이후의 RSS (Received Signal Strength)를 예측하여 개선된 재탐색 알고리즘을 연구하였다. Field 데이터를 통해 제안된 알고리즘을 분석하였으며, 이를 통하여 다양한 조건에 적합한 기법을 제안코저 한다.