• Title/Summary/Keyword: information ambiguity

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A Study on Ambiguity Resolving for Pen-based Proofreading of Web Documents (펜 기반 웹 문서 교정을 위한 모호성 문제 해결에 관한 연구)

  • Sohn, Won-Sung
    • Journal of The Korean Association of Information Education
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    • v.11 no.1
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    • pp.107-116
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    • 2007
  • To produce accurate editing results, the ambiguity of editing scopes related to marked correction signs should be solved. Proofreading the web document modifies the document structures, and the modified structures should be robustly valid for the defined DTD. This paper presents a pen-based proof-reading interface in the XML document. In the proposed interface, correction signs are free-drawn, and the editing scopes are recognized and revised based on the contexts of the document to minimize the ambiguity of the editing scopes. The proposed interface provides both implicit and explicit modification methods for document structures. As a result, the editing scopes processed in the proposed interface are more accurate, and the document structures are maintained valid for DTD after the editing.

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Cycle Slip Detection and Ambiguity Resolution for High Accuracy of an Intergrated GPS/Pseudolite/INS System

  • PARK, Woon-Young;LEE, Hung-Kyu;LEE, Jae-One
    • Korean Journal of Geomatics
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    • v.3 no.2
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    • pp.129-140
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    • 2004
  • This paper addresses solutions th the challenges of carrier phase integer ambiguity resolution and cycle slip detection/identification, for maintaining high accuracy of an integrated GPS/Pseudolite/INS system. Such a hybrid positioning and navigation system is an augmentation of standard GPS/INS systems in localized areas. To achieve the goal of high accuracy, the carrier phase measurements with correctly estimated integer ambiguities must be utilized to update the system integration filter's states. The contribution presents an effective approach to increase the reliability and speed of integer ambiguity resolution through using pseudolite and INS measurements, with special emphasis on reducing the ambiguity search space. In addition, an algorithm which can effectively detect and correct the cycle slips is described as well. The algorithm utilizes additional position information provided by the INS, and applies a statistical technique known as th cumulative-sun (CUSUM) test that is very sensitive to abrupt changes of mean values. Results of simulation studies and field tests indicate that the algorithms are performed pretty well, so that the accuracy and performance of the integrated system can be maintained, even if cycle slips exist in the raw GPS measurements.

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A Study on the Ambiguity of the Boundary in the Inside Space through the Composition of Section (단면 구성을 통한 공간 내부 경계의 모호성에 관한 연구)

  • Lim Jong-Yup;Lee Hong
    • Korean Institute of Interior Design Journal
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    • v.14 no.6 s.53
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    • pp.95-102
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    • 2005
  • The purpose of this study was to analyze the ambiguity of the boundary through the composition of section. The building means the compose of the inside space by physical shell. Inside space that has boundary factors like floor, wall, roof and column is surrounded outside space. The factors which compose the boundary was expressed by architects as various analysis, but it has changed as changing of paradigm and information revolution. The inside space and outside space were connected through the system arrangement, so various space could construct by an aspect of relation. The history of architecture was written as the establishment of in-out space by architectural boundary factors, but the space could not divide definitely, composed complex structure, could experience various recognition. The existing study which is focused on Ambiguity of the Boundary is just focused on contemporary architecture. Ambiguity of the Boundary is developed by using glass. The transparency of glass removed the boundary of space, so it can be created free wall, continuity of view. It was Influenced the boundary of the sight and changed the expression of boundary between the space. This study is to analyze the change of boundary awareness and find the ambiguity of boundary in the section.

Case Ambiguity Resolution using Thesaurus and subcategorization Information (시로러스와 하위범주와 사전을 이용한 격모호성 해결)

  • Yang, Jae-Hyeong;Sim, Gwang-Seop
    • Journal of KIISE:Software and Applications
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    • v.26 no.9
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    • pp.1132-1140
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    • 1999
  • 한국어에서 보조사로 인해 발생하는 격 모호성(case ambiguity) 문제를 해결하는 알고리즘을 개발하였다. 이 알고리즘은 용언의 하위범주화 사전, 용언과 그 용언의 보어가 되는 체언간의 선택 제약, 체언의 의미 정보를 제공하는 시소러스 등의 구문.의미 지식과 더불어 몇 가지의 휴리스틱 규칙을 이용하며, 필수 보어의 생략이 흔한 한국어의 특성에 잘 대응한다. 중규모의 하위범주화 사전 및 시소러스를 이용한 실험에서 만족할 만한 성능을 보였다.Abstract An algorithm is proposed for the resolution of case ambiguity caused by the use of auxiliary postpositions in Korean language. The algorithm utilizes verb dictionary which provides subcategorization information and selectional restrictions, and the thesaurus as well as a set of simple heuristic rules. The algorithm is appropriate for Korean language where required complements are often omitted. The algorithm performed successfully in an experiment using medium-sized subcategorization dictionary and thesaurus.

Employee Resistance in the Context of Information Systems Implementation : An Organizational Support Perspective

  • Lee, Jung Seung;Lee, Jeonghoon
    • Journal of Information Technology Applications and Management
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    • v.23 no.2
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    • pp.1-10
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    • 2016
  • When implementing a new information system, the success has been infrequent even though implementing a new IS can bring about various benefits to organizations. Employee resistance has been identified as a critical reason for such failure of implementing and operating a new IS. The vital role of orgazniational support with employee personality traits (e.g., tolerance for ambiguity and openness to expeirence) to reduce employee resistance has been missing when explaining to the failure of impleneting a new IS. The purpose of this study was to test a research model regarding employee resistnace, investigating the relationship bewteen organizational support and employee personality traits in that how organizational support influences employee resistance and also how employee personality traits (e.g., tolerance for ambiguity and openness to expeirence) interact with organizational support to decrease employee resistance the most. The results of this study supported our hypotheses and theoretical and practical implications are discussed.

An Empirical Study on the Relationship between Role Stress and Personal Creativity: The Mediating Roles of Creative Self-Efficacy and Personal Initiative (역할스트레스와 개인 창의성 간의 관계에 대한 실증연구: 창의적 자아효능감과 자기주도성의 매개역할)

  • Heo, Myung Sook;Cheon, Myun Joong
    • The Journal of Information Systems
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    • v.22 no.2
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    • pp.51-83
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    • 2013
  • Personal creativity is critically important for organizations seeking to survive and thrive in today's highly turbulent business environments. Organizations must effectively identify and mobilize the creative resources of their members. When organizational members perceive a work environment that restricts or fails to encourage individual creative expression, a gap may exist between the level of individual creative potential and the actual amount of individual creativity practiced within the organization. In this situation, this paper will examine the impact of role conflict, role ambiguity, creative self-efficacy, and personal initiative on personal creativity. Creative self-efficacy is the subjective belief in one's personal ability to be creative, that is, a personal assessment of one's own creative potential. A strong internal belief in one's ability to successfully engage in creative behaviors is generally considered an important part of the creative process. Personal Initiative refers to behaviors, mainly directed toward work and organizational issues, that are characterized by the following aspects: self-starting, proactive, and persistent in overcoming barriers. Creativity-related creative self-efficacy and personal initiative are critical components to understand motivation that coordinates the relationship between perception and behavior of individual employees. Based on role theory, researchers have focused on role conflict and role ambiguity as the two key ingredients of role stress. Role ambiguity is defined as an evaluation about the lack of salient information needed to perform a role effectively. Role conflict results from two or more sets of incompatible demands involving work-related issues. Employees are usually pursued work-roles more than one in work-focused organization. Too many work-roles and perceived uncertainties at employee's work can be obstacles to personal creativity. In an analysis of results, while role conflict is not negatively related significantly to creative self-efficacy, role ambiguity is negatively related significantly to creative self-efficacy. While role conflict is significantly related to personal creativity, role ambiguity is negatively related significantly to personal creativity. Creative self-efficacy mediates the relationship among role conflict, role ambiguity, and employee creativity. Personal initiative mediates the relationship between creative self-efficacy and employee creativity. This paper shows that creative self-efficacy and personal initiative are the driving force behind personal creativity. Organizations can get some implications of creative-related role conflict and role ambiguity that employees have experienced. As a result, organizations must not only encourage creativity of employees by greater involvement but also encourage their input towards their-focused own works and tasks. And employees should be developed to pace with the organizational needs and development. Management must enable employees to think of new ideas and practices that promotes personal creativity.

Mediating Effect of Job Burnout in the Relationship between Role Ambiguity and Organizational Effectiveness among Nurses in Comprehensive Nursing Care Service Units

  • Hong-Suk Lee;Hye-Sook Han
    • Journal of the Korea Society of Computer and Information
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    • v.28 no.11
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    • pp.169-180
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    • 2023
  • The purpose of this study is to determine the relationship between role ambiguity, job burnout, and organizational effectiveness among nurses working in comprehensive nursing care service units and to investigate the mediating effect of job burnout on the relationship between role ambiguity and organizational effectiveness. The participants were 149 nurses working in 10 general hospitals. Data were collected using a self-report questionnaire and analyzed using IBM SPSS Statistics 25.0 and Model 4 of the PROCESS macro program. The results reveal that organizational effectiveness has a significant negative relationship with role ambiguity and job burnout, with job burnout completely mediating the effect of role ambiguity on organizational effectiveness. These findings suggest that interventions to reduce job burnout should be considered to enhance organizational effectiveness.

An Approach to Eliminate Ambiguity of Blind ML Detection for Orthogonal Space-Time Block Codes

  • Pham, Van-Su;Le, Minh-Tuan;Mai, Linh;Kabir, S. M. Humayun;Yoon, Gi-Wan
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2007.10a
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    • pp.83-86
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    • 2007
  • In the blind Maximum-likelihood (ML) detection for Orthogonal Space-Time Block Codes (OSTBC), the problem of ambiguity in determining the symbols has been a great concern. A solution to this problem is to apply semi-blind ML detection, i.e., the blind ML decoding with pilot symbols or training sequence. In order to increase the performance, the number of pilot symbols or length of training sequence should be increased. Unfortunately, this leads to a significant decrease in system spectral efficiency. This work presents an approach to resolve the aforementioned issue by introducing a new method for constructing transmitted information symbol. Thus, by transmitting information symbols drawn from different modulation constellation, the ambiguity can be easily eliminated in blind detection. Also, computer simulations are implemented to verify the performance of the proposed approach.

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Novel Approach for Eliminating BER Irreducible Floor in the Enhanced Blind Cyclic Detection for Space-Time Coding

  • Pham, Van-Su;Le, Minh-Tuan;Mai, Linh;Kabir, S.M.Humayun;Yoon, Gi-Wan
    • Journal of information and communication convergence engineering
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    • v.6 no.2
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    • pp.150-153
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    • 2008
  • In the blind Maximum-likelihood (ML) detection for Orthogonal Space-Time Block Codes (OSTBC), the problem of ambiguity in determining the symbols has been a great concern. A possible solution to this problem is to apply semi-blind ML detection, i.e. the blind ML decoding with pilot symbols or training sequence. In order to increase the performance, the number of pilot symbols or length of training sequence should be increased. Unfortunately, this leads to a significantly decrease in system spectral efficiency. This work presents an approach to resolve the aforementioned issue by introducing a new method for constructing transmitted information symbols, in which transmitting information symbols drawn form different modulation constellations. Therefore, the ambiguity can be easily eliminated. In addition, computer simulation is implemented to verify the performance of the proposed approach.

Semantic-based Keyword Search System over Relational Database (관계형 데이터베이스에서의 시맨틱 기반 키워드 탐색 시스템)

  • Yang, Younghyoo
    • Journal of the Korea Society of Computer and Information
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    • v.18 no.12
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    • pp.91-101
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    • 2013
  • One issue with keyword search in general is its ambiguity which can ultimately impact the effectiveness of the search in terms of the quality of the search results. This ambiguity is primarily due to the ambiguity of the contextual meaning of each term in the query. In addition to the query ambiguity itself, the relationships between the keywords in the search results are crucial for the proper interpretation of the search results by the user and should be clearly presented in the search results. We address the keyword search ambiguity issue by adapting some of the existing approaches for keyword mapping from the query terms to the schema terms/instances. The approaches we have adapted for term mapping capture both the syntactic similarity between the query keywords and the schema terms as well as the semantic similarity of the two and give better mappings and ultimately 50% raised accurate results. Finally, to address the last issue of lacking clear relationships among the terms appearing in the search results, our system has leveraged semantic web technologies in order to enrich the knowledgebase and to discover the relationships between the keywords.