• Title/Summary/Keyword: Knowledge-base

Search Result 1,433, Processing Time 0.036 seconds

Knowledge Base Associated with Autism Construction Using CRFs Learning

  • Yang, Ronggen;Gong, Lejun
    • Journal of Information Processing Systems
    • /
    • v.15 no.6
    • /
    • pp.1326-1334
    • /
    • 2019
  • Knowledge base means a library stored in computer system providing useful information or appropriate solutions to specific area. Knowledge base associated with autism is the complex multidimensional information set related to the disease autism for its pathogenic factor and therapy. This paper focuses on the knowledge of biological molecular information extracted from massive biomedical texts with the aid of widespread used machine learning methods. Six classes of biological molecular information (such as protein, DNA, RNA, cell line, cell component, and cell type) are concerned and the probability statistics method, conditional random fields (CRFs), is utilized to discover these knowledges in this work. The knowledge base can help biologists to etiological analysis and pharmacists to drug development, which can at least answer four questions in question-answering (QA) system, i.e., which proteins are most related to the disease autism, which DNAs play important role to the development of autism, which cell types have the correlation to autism and which cell components participate the process to autism. The work can be visited by the address http://134.175.110.97/bioinfo/index.jsp.

Intelligent Query Answering System using Query Relaxation (질의 완화를 이용한 지능적인 질의 응답 시스템)

  • Hwang, Hye-Jeong;Kim, Kio-Chung;Yoon, Yong-Ik;Yoon, Seok-Hwan
    • The Transactions of the Korea Information Processing Society
    • /
    • v.7 no.1
    • /
    • pp.88-98
    • /
    • 2000
  • Cooperative query answering provides neighborhood or associate information relevant to the initial query using the knowledge about the query and data. In this paper, we present an intelligent query answering system for suporting cooperative query answering system presented in this paper performs query relaxation process using hybrid knowledge base. The hybrid knowledge base which is used for relaxation of queries, composes of semantic list and rule based knowledge base for structural approach. Futhermore, this paper proposes the query relaxation algorithm for query reformulation using initial query on the basis of hybrid knowledge base.

  • PDF

A Study on the Design of a Knowledge Base for the Korean Retrieval (우리말 문헌정보검색을 위한 지식베이스 설계에 관한 연구)

  • Chang, Jae-Gyong
    • Journal of the Korean Society for information Management
    • /
    • v.3 no.1
    • /
    • pp.70-102
    • /
    • 1986
  • This study is an attempt to develop a knowledge base with Inference mechanism for document retrieval, which is the core element of expert system. The purpose of this study is to design the knowledge base in order to intellectually process user queries eventually improving the effectiveness of information retrieval, under the assumption that the user who wants to search a certain subject generally lack the prior knowledge about that subject. In this paper, some characteristics of Korean complex nouns are structurally analyzed and are represented in the knowledge base.

  • PDF

Database and knowledge-base for supporting distributed intelligent product design

  • Nguyen Congdu;Ha Sungdo
    • Proceedings of the IEEK Conference
    • /
    • summer
    • /
    • pp.87-91
    • /
    • 2004
  • This research presents distributed database and knowledge-base modeling approach for intelligent product design system. The product design information in this study is described by a collection of rules and design knowledge that are utilized according to the product development procedures. In this work, a network-based architecture has been developed to enable dispersed designers to simultaneously accomplish remote design tasks. A client/server communication diagram has also been proposed to facilitate consistent primary information modeling for multi-user access and reuse of designed results. An intelligent product design system has been studied with the concepts of distributed database and network-based architecture in order to support concurrent engineering design and automatic design part assembly. The system provides the capability of composing new designs from proper design elements stored in the database and knowledge-base. The distributed intelligent product design is applied to the design of an automobile part as an example.

  • PDF

A Construction of the Knowledge Base for System Regulation (시스템 제어를 위한 지식베이스의 구축)

  • Kim, Do-Sung;Lee, Myoung-Ho
    • Proceedings of the KIEE Conference
    • /
    • 1989.07a
    • /
    • pp.106-108
    • /
    • 1989
  • In this paper,an algorithm is implemented to retrieve the control knowledge from the plant being controlled. And this knowledge is stored to the knowledge base and is continuously modified. A control system which realizes this algorithm generates control knowledge automatically and modifies the knowledge base, which was previously generated, in accordance with the experience of input-output relations. And this kind of system can manipulate knowledge by symbolic descriptions. So this system can be used to implement the heuristic procedure which was difficult to realize through conventional procedural computer languages or numerical techniques.

  • PDF

A Study on the Development of Multiple Experts' Knowledge Combining Algorithm by Using Fuzzy Cognitived Map (퍼지인식도를 이용한 다수 전문가지식 결합 알고리즘 개발에 관한 연구)

  • 이건창;주석진;김현수
    • Journal of the Korean Operations Research and Management Science Society
    • /
    • v.19 no.1
    • /
    • pp.17-40
    • /
    • 1994
  • The objectives of this paper are to apply fuzzy cognitive map (FCM)- related techniques to (1) extract causal knowledge from a specific problem-domain and (2) perform a series of causal analysis in complicated decision making area. We propose a set operation-based augmentation (SOBA) algorithm to combine multiple FCMs developed by multiple experts. Based on the SOBA knowledge acquisition algorithm, we can obtain a causal knowledge base fairly representing multiple experts' knowledge about a problem domain. The causal knowledge base built by SOBA algorithm can be described as a matrix form, guaranteeing mathematically compact operation compared with a production (if-then) knowledge base. We applied out method to stock market analysis problem whichis a typical of highly unstructured problems in OR/MS fields.

  • PDF

The Definition of Data Structure for Design Knowledge Database and Development of the Interface Program for using Natural Language Processing (설계지식 데이터베이스의 자료구조 규명과 자연어처리를 이용한 인터페이스 프로그램 개발)

  • 이정재;이민호;윤성수
    • Magazine of the Korean Society of Agricultural Engineers
    • /
    • v.43 no.6
    • /
    • pp.187-196
    • /
    • 2001
  • In this study, by using the natural language processing of the field of artificial intelligence, automated index was performed. And then, the Natural Language Processing Interface for knowledge representation(NALPI) has been developed. Furthermore, the DEsign KnOwledge DataBase(DEKODB) has been also developed, which is designed to interlock the knowledge base. The DEKODB processes both the documented design-data, like a concrete standard specification, and the design knowledge from an expert. The DEKODB is also simulates the design space of structures accordance with the production rule, and thus it is determined that DEKODB can be used as a engine to retrieve new knowledge and to implement knowledge base that is necessary to the development of automatic design system. The application field of the system, which has been developed in this study, can be expanded by supplement of the design knowledge at DEKODB and developing dictionaries for foreign languages. Furthermore, the perfect automation at the data accumulation and development of the automatic rule generator should benefit the unified design automation.

  • PDF

Fuzzy Inference in RDB using Fuzzy Classification and Fuzzy Inference Rules

  • Kim Jin Sung
    • Proceedings of the Korean Institute of Intelligent Systems Conference
    • /
    • 2005.04a
    • /
    • pp.153-156
    • /
    • 2005
  • In this paper, a framework for implementing UFIS (Unified Fuzzy rule-based knowledge Inference System) is presented. First, fuzzy clustering and fuzzy rules deal with the presence of the knowledge in DB (DataBase) and its value is presented with a value between 0 and 1. Second, RDB (Relational DB) and SQL queries provide more flexible functionality fur knowledge management than the conventional non-fuzzy knowledge management systems. Therefore, the obtained fuzzy rules offer the user additional information to be added to the query with the purpose of guiding the search and improving the retrieval in knowledge base and/ or rule base. The framework can be used as DM (Data Mining) and ES (Expert Systems) development and easily integrated with conventional KMS (Knowledge Management Systems) and ES.

  • PDF

Web-based chromosome Karyotyping Instruction System (웹기반의 핵형분류 교육시스템)

  • Koo Bong-Oh;Shin Yong-Won
    • The Journal of the Korea Contents Association
    • /
    • v.5 no.3
    • /
    • pp.29-35
    • /
    • 2005
  • The task for chromosome analysis and diagnosis by experienced cytogenetists are being concerned as repetitive, time consuming job and expensive. For that reason, intelligent agent based on chromosome knowledge base using web has been developed to be able to analyze chromosomes and obtain necessary advises from the knowledge base instead of human experts. That is to say, the knowledge base of IF THEN production rule was implemented to a knowledge domain with normal and abnormal chromosomes, and then the inference results by the knowledge base could enter the inference data into the database. Experimental data were composed of normal chromosomes of 2,736 cases and abnormal chromosomes of 259 cases that have been obtained from GTG-banding metaphase peripheral blood and amniotic fluid samples. The completed intelligent agent for the chromosome knowledge base provides variously morphological information by analysis of normal or abnormal chromosomes also has the advantage of being able to consult with the user on the chromosome analysis and diagnosis.

  • PDF

Constructing Rule Base of knowledge structure for Intelligent Machine Tools (지능공작기계 지식구조의 규칙베이스 구축)

  • Lee S.W.;Kim D.H.;Lim S.J.;Song J.Y.;Lee H.K.
    • Proceedings of the Korean Society of Precision Engineering Conference
    • /
    • 2005.10a
    • /
    • pp.954-957
    • /
    • 2005
  • In order to implement Artificial Intelligence, various technologies have been widely used. Artificial Intelligence is applied for many industrial product and machine tools are the center of manufacturing devices in intelligent manufacturing system. The purpose of this paper is to present the construction of Rule Base for knowledge structure that is applicable to machine tools. This system is that decision whether to act in accordance with machine status is support system. It constructs Rule Base of knowledge used of machine toots. The constructed Rule Base facilitates the effective operation and control of machine tools and will provide a systematic way to integrate the expert's knowledge that will apply Intelligent Machine Tools.

  • PDF