• Title/Summary/Keyword: Automatic Rule Construction

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Knowledge-Based Approach for Computer-Aided Simulation Modeling (컴퓨터에 의해 수행되어지는 시뮬레이션 모델링을 위한 지식베이스 접근방법)

  • Lee, Young-Hae;Kim, Nam-Young
    • IE interfaces
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    • v.2 no.2
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    • pp.51-62
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    • 1989
  • A computer-aided simulation modeling system has been developed to allow the automatic construction of complete discrete simulation models for queueing systems. Three types of knowledge are used in the specification and construction of a simulation modeling: Knowledge of queueing system, simulation modeling, and a target simulation language. This knowledge has been incorporated into the underlying rule base in the form of extraction and construction rule, and implemented via the expert system building tool, OPS5. This paper suggested a knowledge based approach for automatic programming to enable a user who lacks modeling knowledge and simulation language expertize to quickly build executable models.

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The Automatic Topology Construction of The Neural Network using the Fuzzy Rule (퍼지규칙을 이용한 신경회로망의 자동 구성)

  • 이현관;이정훈;엄기환
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.5 no.4
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    • pp.766-776
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    • 2001
  • In the constructing of the multi layer neural network, the network topology is often chosen arbitrarily for different applications, and the optimum topology of the network is determined by the long processing of the trial and error. In this paper, we propose the automatic topology construction using the fuzzy rule that optimizes the neurons of hidden layer, and prune the weights connecting the hidden layer and the output layer during the training process. The simulation of pattern recognition, and the experiment of the mapping of the inverted pendulum showed the effectiveness of the proposed method.

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Knowledge Base Construction of Ship Design Using Fuzzy Equalization and Rough Sets (퍼지균등화와 러프집합을 이용한 선박설계 지식기반 구축)

  • Suh, Kyu-Youl
    • Journal of Ocean Engineering and Technology
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    • v.21 no.6
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    • pp.115-119
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    • 2007
  • Inference rules of the knowledge base, generated by experts or optimization, may be often inconsistent and incomplete. This paper suggests a systematic and automatic method which extracts inference rules not from experts' subject but from data. First, input/output linguistic variables are partitioned into several properties by the fuzzy equalization algorithm and each combination of their properties comes to premise of inference rule. Then, the conclusion which is the mast suitable for the premise is selected by evaluating consistent measure. This method, automatically from data, derives inference rules from experience. It is shown through application that extracts new inference rules between hull dimensions and hull performance.

A Study on Rule-Based Vehicle Tracking in Video Images (비디오 영상에서 규칙기반 차량추적에 관한 연구)

  • Park Eun-Jong;Lee Joon-Whan
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.4 no.2 s.7
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    • pp.1-11
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    • 2005
  • Automatic tracking of vehicles is important to accurately estimate the vehicle speeds in video-based traffic measurement systems and to analyze traffic flows for road construction. This paper proposes a carefully designed rule-based tracking scheme that considers the possible cases that can be appeared in the video-based vehicle racking. The proposed scheme is fast and outperforms the Mean-Shift scheme in terms of accuracy. The accuracy and the speed of the scheme would be increased by combining it with color-based searching and Kalman filters.

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Scan-to-Geometry Mapping Rule Definition for Building Plane Reverse engineering Automation (건축물 평면 형상 역설계 자동화를 위한 Scan-to-Geometry 맵핑 규칙 정의)

  • Kang, Tae-Wook
    • Journal of KIBIM
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    • v.9 no.2
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    • pp.21-28
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    • 2019
  • Recently, many scan projects are gradually increasing for maintenance, construction. The scan data contains useful data, which can be generated in the target application from the facility, space. However, modeling the scan data required for the application requires a lot of cost. In example, the converting 3D point cloud obtained from scan data into 3D object is a time-consuming task, and the modeling task is still very manual. This research proposes Scan-to-Geometry Mapping Rule Definition (S2G-MD) which maps point cloud data to geometry for irregular building plane objects. The S2G-MD considers user use case variability. The method to define rules for mapping scan to geometry is proposed. This research supports the reverse engineering semi-automatic process for the building planar geometry from the user perspective.

Development of Rule for Quality Checking Items to Raise Quality of BIM Model -Focusing on the Domestic BIM Guidelines- (BIM 모델의 완성도를 높이기 위한 품질검토항목의 룰 개발 - 국내 BIM 지침을 중심으로 -)

  • Song, Jong-Kwan;Ju, Ki-Beom
    • Korean Journal of Construction Engineering and Management
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    • v.14 no.5
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    • pp.131-143
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    • 2013
  • There is the difference of criteria to apply guidelines among the project participants and to depend on the purpose of utilizing BIM models, although modeling criteria are basically provided through BIM guidelines. Therefore, it is quite important to check compliance with guidelines to raise quality of the BIM model. But Quality Checking (QC) items and method for BIM model modeled in accordance with guidelines is not provided. This study suggested QC items and Rule Specifications(RS) for automatic QC. First of all, QC items were derived by analyzing domestic BIM guidelines and a process for structuring natural language is conducted by utilizing flowchart and pseudocode. So, by combining them, RS was suggested. Finally, RS-based case study was conducted by implementing automatic QC process with solibri model checker$^{TM}$. This study will contribute to the improvement of design quality and completeness of BIM model including huge data of 3 dimension. Furthermore, it is necessary to develop BIM guidelines according to the use case and to provide detailed process and standard for QC of BIM model.

Basic Construction of Rule-Base for Grinding Trouble-shooting (연삭가공 트러블슈팅을 위한 룰베이스 구성의 기초)

  • 이재경
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
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    • 1999.10a
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    • pp.492-497
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    • 1999
  • Cognition and control of grinding trouble occurring during the grinding process are classified into a quantitative knowledge which depends on experimental data and qualitative knowledge which relies on skillful engineers. Grinding operations include a large number of functional parameters, since there are several ways of coping with grinding trouble. One is the qualitative method which depends on empirical knowledge utilizing the skilful experts from the workshop, the other is the quantitative method which utilizes the experimental data obtained by sensor. But, they are all difficult to accomplish from the grinding trouble-shooting system. The reason is that grinding troubles are not easily controlled in the quantitative method, and therefore, trouble-shooting has mainly relied on the knowledge of skilful engineers. Thus, there is an important issue of how a grinding trouble-shooting system can be designed and what knowledge is utilized among the large amount of grinding trouble information. In this paper, basic strategy to develop the grinding database of rule-based rule, which is strongly depended upon experience and intuition, is described.

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Linguistic characterization of sign language expressions for an automatic conversion from natural language sentences (자연언어 문장의 자동 변환을 위한 수화 표현의 언어학적 특성 분석)

  • Choi Ji-Won;Chang Eun-Young;Lee Hee-Jin;Park Jong-C.
    • Language and Information
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    • v.10 no.1
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    • pp.71-91
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    • 2006
  • The linguistic characteristics of a sign language provide an important clue for an automatic construction of its expression from a given natural language sentence. For such characterization, we focus on the identification of elided constituents, the mapping of property-changing information into spatio-temporal dimension, and the need for rearranging the order of component information for enhanced quality of delivery. We use our characterization to implement a system that converts sentences in Korean into corresponding expressions in the Korean Sign Language.

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A Statistical Approach for Extracting and Miming Relation between Concepts (개념간 관계의 추출과 명명을 위한 통계적 접근방법)

  • Kim Hee-soo;Choi Ikkyu;Kim Minkoo
    • The KIPS Transactions:PartB
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    • v.12B no.4 s.100
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    • pp.479-486
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    • 2005
  • The ontology was proposed to construct the logical basis of semantic web. Ontology represents domain knowledge in the formal form and it enables that machine understand domain knowledge and provide appropriate intelligent service for user request. However, the construction and the maintenance of ontology requires large amount of cost and human efforts. This paper proposes an automatic ontology construction method for defining relation between concepts in the documents. The Proposed method works as following steps. First we find concept pairs which compose association rule based on the concepts in domain specific documents. Next, we find pattern that describes the relation between concepts by clustering the context between two concepts composing association rule. Last, find generalized pattern name by clustering the clustered patterns. To verify the proposed method, we extract relation between concepts and evaluate the result using documents set provide by TREC(Text Retrieval Conference). The result shows that proposed method cant provide useful information that describes relation between concepts.

A Study on the Establishment of Rule-Based Modules for Automating the Design of Interior Finishes in Architectural Buildings (건축 내부 마감 자동 상세화를 위한 규칙 기반 모듈 구축 방안에 관한 연구 - 바닥, 벽 및 천장을 중심으로 -)

  • Ha, Dae-Mok;Yu, Young-Su;Koo, Bon-Sang
    • Journal of KIBIM
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    • v.12 no.1
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    • pp.42-54
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    • 2022
  • BIM facilitates data transparency and consistency through three-dimensional parametric modeling and promotes the accurate managing and sharing of project information. In Korea, however, BIM-based detailed design of architectural interior finishes required during the Construction Documents phase increases the burden on architectural firms due to frequent design changes and manual workload. Therefore, the purpose of this study was to establish rule-based modules using parametric modeling that automates repetitive tasks that occur during the detailed design of interior finishing. Interviews with practitioners were conducted to analyze the major finishing elements. Of these floors, walls, and ceilings, which were the most rudimentary and common items, were selected as the subjects of the study. The modules developed in this study have two functions. One is to create new finish types, and the other is the automatic modeling of new types into rooms. For these functions, parameters that belonged to each finish and room element in a BIM model were analyzed and valid parameters directly used for parametric modeling were derived. Then, based on these parameters, rule-based modules for three elements, I.e., floors, walls, and ceilings were constructed with Revit Dynamo, and the effectiveness of the modules was verified with a pilot test. In conclusion, this study suggested a series of processes for automatic finishing to improve the efficiency of BIM-based architectural detailed design of finishes and to contribute in solving the chronic problems occuring during current design processes.