• Title/Summary/Keyword: Knowledge based systems

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PubMine: An Ontology-Based Text Mining System for Deducing Relationships among Biological Entities

  • Kim, Tae-Kyung;Oh, Jeong-Su;Ko, Gun-Hwan;Cho, Wan-Sup;Hou, Bo-Kyeng;Lee, Sang-Hyuk
    • Interdisciplinary Bio Central
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    • v.3 no.2
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    • pp.7.1-7.6
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    • 2011
  • Background: Published manuscripts are the main source of biological knowledge. Since the manual examination is almost impossible due to the huge volume of literature data (approximately 19 million abstracts in PubMed), intelligent text mining systems are of great utility for knowledge discovery. However, most of current text mining tools have limited applicability because of i) providing abstract-based search rather than sentence-based search, ii) improper use or lack of ontology terms, iii) the design to be used for specific subjects, or iv) slow response time that hampers web services and real time applications. Results: We introduce an advanced text mining system called PubMine that supports intelligent knowledge discovery based on diverse bio-ontologies. PubMine improves query accuracy and flexibility with advanced search capabilities of fuzzy search, wildcard search, proximity search, range search, and the Boolean combinations. Furthermore, PubMine allows users to extract multi-dimensional relationships between genes, diseases, and chemical compounds by using OLAP (On-Line Analytical Processing) techniques. The HUGO gene symbols and the MeSH ontology for diseases, chemical compounds, and anatomy have been included in the current version of PubMine, which is freely available at http://pubmine.kobic.re.kr. Conclusions: PubMine is a unique bio-text mining system that provides flexible searches and analysis of biological entity relationships. We believe that PubMine would serve as a key bioinformatics utility due to its rapid response to enable web services for community and to the flexibility to accommodate general ontology.

지능형 전문가관리 프레임워크를 위한 주제 분야 계층 자동 생성

  • Yang, Geun-U;Lee, Sang-Ro
    • 한국경영정보학회:학술대회논문집
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    • 2007.11a
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    • pp.294-299
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    • 2007
  • In this paper, we introduce the methodology for the automatic generation of the subject field hierarchy for Intellgent Expert Management Framework using WordNet. Intelligent Expert Management Framework, which is proposed as an appropriate method to manage valuable tacit knowledge within the organization, defines the expert profile structure and proposes the efficient method to automate the process to collect and update the expert profile information based on the profile structure defined. To increase the satisfaction level of users, additional intelligent search features are defined and users can be given the list of experts in related or similar expert fields when they perform expert searches based on the expert database being built. To enable automatic profiling of the organizational experts as well as intelligent expert searches, the subject field hierarchy, upon which the expert profiles are classified and expert searches for similar fields are performed, should be predefined. In this paper, we propose the WordNet library method that first eliminates the ambiguity of the senses of nominal data values, constructs the subject field hierarchy by overlapping the hypernym of the remaining senses, and lastly adjusts the derived hierarchy to the preference of users. Based on the proposed methodology, we expect to avoid the prohibitive costs in building large subject field hierarchies when manually done as well as maintain the objectivity of the hierarchies.

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A Study on the Knowledge Measurement md Sharing Methodology at the Knowledge-Oriented Organization (지식지향적 조직에 있어서의 지식평가 및 공유방법에 관한 연구)

  • 이상근;유상진;장영택
    • Journal of Korea Society of Industrial Information Systems
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    • v.6 no.3
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    • pp.1-19
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    • 2001
  • Internet based on web service is growing rapidly and the effort to standardize the next generation web is world-widely being made. When the web was developed for the first time, HTTP, HTML, and URL were designed based on the structure of text background. Through those, asynchronous search and simple, unified expression patterns have been used. But recently many data on internet are becoming complicated. Consequently new structure and expression patterns including synchronous multimedia information are requested. The currently used standard language among user interface domain of W3C is SMIL which is XML-based one. SMIL describes where and how long the multimedia factors are integrated on the web. In this paper the standardization trend and important issues related to SMIL are reviewed and analyzed. Also the development of technology is discussed.

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Fuzzy Logic-Based Moldability-Conforming System in Injection Molding

  • Kang, Seong-Nam;Huh, Yong-Jeong;Huh, Yong-Jeong
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • v.2 no.1
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    • pp.49-52
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    • 2002
  • Short shot is a molded part that is incomplete since insufficient material was injected into the mold. Remedial actions to solve short shot can be dune by injection molding experts based on their empirical knowledge. Modifying mold and part, changing resin to less viscous one, and adjusting process conditions are general remedies. Experts of injection molding might try to adjust process conditions such as mold temperature, melt temperature, injection time based on their empirical knowledge as the first remedy because adjustment of process conditions is the most economic way in time and cost. However it is difficult to find appropriate process conditions as they are highly coupled and there are so many elements to be considered. In this paper, a fuzzy logic algorithm has been proposed to find an appropriate mold temperature. With the percentage of the insufficient quantity of an injection molded part, an appropriate mold temperature can be obtained by the fuzzy logic algorithm.

A Study on Team Collaboration Affecting Team Performance: Mediating Effect of Team Shared Cognition, Team Transactive Memory, Team Knowledge Integration, and Team Efficacy with Focus on Consulting Projects (팀성과에 영향을 미치는 팀협업에 관한 연구: 컨설팅 프로젝트를 중심으로 팀공유인지, 팀정보교류, 팀지식통합, 팀효능감의 매개효과)

  • Chae-Sang Shin;Jung-Wan Hong
    • Journal of Industrial Convergence
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    • v.21 no.1
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    • pp.9-31
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    • 2023
  • This study is a study on the different cognitive systems and different knowledge systems of members participating in complex and diverse consulting projects, and it is a study on team collaboration that affects the team performance of the project. The purpose of this study is to analyze the mediating effects of team shared cognition, team transactive memory, team knowledge integration, and team efficacy in the cognitive interaction process of a consulting project. This study established a research model and research hypothesis based on previous studies. Data were collected from consultants who actually participated in the consulting project. To empirically analyze the research hypothesis, demographic analysis, validity and reliability analysis, structural model analysis for hypothesis verification, and mediating effect analysis using phantom variables were performed. As a result of the study, in order to increase team performance, it is necessary to improve team shared cognition and team transactive memory, which are cognitive systems, and team knowledge integration, which is a knowledge system, must also be improved. Therefore, there is a need for a sense of team efficacy that integrates disparate cognitive and knowledge systems, trusts each other's expertise, and enables successful team work. In addition, future studies on sub-factors of cognitive processes are needed.

A Study on the Representation of the Dimensions in the Feature-based Modeler Based on the B-rep (경계 표현법을 기반으로 한 특징 형상 모델러에서 치수 정보의 표현에 관한 연구)

  • 변문현;오익수
    • Korean Journal of Computational Design and Engineering
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    • v.1 no.2
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    • pp.122-132
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    • 1996
  • Features are generic shapes with which engineers associate certain attributes and knowledge useful in reasoning about the product. Feature-based modeling systems support additional levels of information beyond those available in geometric modelers. The objective of this study is to develop a PC level feature-based modeling system which explicitly represents dimensions of the part. The feature-based modeler retains all the benefits of traditional B-rep. solid models, and represents the dimensions at a high level of a abstraction so that dimension driven geometry can be achieved.

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Analysis on Knowledge and Skills for Information Security Professionals (정보보호 분야 직무별 필요 지식 및 기술 분석)

  • Jun, Hyo-Jung;Yoo, Hye-Won;Kim, Tae-Sung
    • Information Systems Review
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    • v.10 no.2
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    • pp.253-267
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    • 2008
  • As the importance of information security becomes a major concern, there has been growing effort to educate information security professionals. This study aims to analyze the level of required knowledge and skills for four information security skills groups: strategy and planning; research and development; system management and operation; and accident control. For this study, we selected 55 critical knowledge and skills for information security professionals by literature review and Delphi method, and we conducted a survey of information security knowledge and skills requirements for information security professionals to perform their jobs. As a result, we analyzed the current status of the information security professionals' knowledge and skills level and suggested some guidelines for establishing the demand-based curriculum for training information security professionals.

Differences in Perception of Information Security Knowledge and Skills Between Academia and Industry (정보보호 전문인력의 소요 지식 및 기술에 대한 산업체와 교육기관의 관점 비교)

  • Yoo, Hye-Won;Kim, Tae-Sung
    • Information Systems Review
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    • v.11 no.2
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    • pp.113-129
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    • 2009
  • With increasing interest in information security, many studies have been conducted on cultivation and management of information security manpower. The widespread application of information security made the activity of information security professionals more diverse. Therefore, it is essential to analyze the knowledge and skills that are necessary for information security professionals to carry out their job and we also need to take these into considerations for the development and operation of education programs. In this study, for analyzing the perception gaps of information security knowledge and skills level between academia and industry, we have derived 58 knowledge and skills by conducting the literature review and Delphi method and we also conducted a survey of information security knowledge and skills requirements for information security professionals who are now working in industries and educational organizations. As a result, we analyze the perception gaps between two groups of information security professionals and suggest some guidelines for establishing the demand-based curriculum for training information security professionals.

The Strategic Decision Supports using Knowledge Transformation Process (지식변환과정을 활용한 전략적 의사결정지원 방법론에 관한 연구)

  • Park, Ki-Nam
    • Journal of Korea Society of Industrial Information Systems
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    • v.13 no.5
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    • pp.55-65
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    • 2008
  • The strategic decision makers of the firm have faced with uncertainty and complexity. Although they must make decision under these environments, they can't have enough time, man power, budget and knowledge that they need to decide. They can't, therefore, help getting supports by experts who have implicit knowledge about the domain. But it is difficult for them to find any other procedures and methods to create, transform, combine, and apply new knowledges, whenever decision makers face the problem This paper provides a new method to support a strategic decision making by using the knowledge transformation process suggested by Nonaka. We illustrate an application case of the strategic decision making in consulting industry. This paper uses cognitive map as a decision support technology based on the suggested method.

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A Study on Analysis and Design of Metadata Model for Intelligent e-Learning System (지능형 학습 시스템을 위한 메타데이터 모형 분석 및 설계 연구)

  • Jang, Jin-Cheul;Hong, Seong-Yong;Yi, Mun-Yang
    • 한국정보교육학회:학술대회논문집
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    • 2011.01a
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    • pp.211-217
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    • 2011
  • Recent IT (information technology) environmental changes, such as emerging social network services or increasing user participation in multimedia environment, have made it necessary for e-learning systems to undergo changes in various ways. Metadata is an agreement for interoperability between different systems. The standardization of metadata for e-learning system has been driven by some domestic and international organizations, but applying diverse environmental changes into the design of e-learning metadata is in dire need. In this paper, we present a methodology for the analysis and design of modeling e-learning metadata and elicit the design requirements, on the basis of the metadata standard KEM 3.0, about the elements that are expected to be needed in future e-learning systems. Based on the requirements from the analysis, we present the three-layer model for classifying the requirements by the importance of metadata elements per Kana Model. An intelligent e-learning system is to be developed based on the proposed modeling design, which we hope to influence the development of an international standard in the future.

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