• Title/Summary/Keyword: Generic model

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Generic Modeling System (Generic Modeling System 개발 및 응용사례)

  • 조유정;임기수;나재일;이장열
    • CDE review
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    • v.3 no.3
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    • pp.36-45
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    • 1997
  • This paper presents the research on the development of Generic modeling system as a 3D CAD customizing system for the elevator design. This system enables to create a generic model which gives birth to many models. The generic model is expressed as a non-scale model or a standard model in this paper. Using the parametric design techniques, all their relationships are explicitly represented in the tables, not represented in implicit embedded coding. Owing to this method, designers can easily extend the generic model to contain more model families. All parametric relations are stored in relational database. A designer can retrieve various models from a generic model automatically, by using some key input values.

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Realistic individual 3D face modeling (사실적인 3D 얼굴 모델링 시스템)

  • Kim, Sang-Hoon
    • The Journal of the Korea institute of electronic communication sciences
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    • v.8 no.8
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    • pp.1187-1193
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    • 2013
  • In this paper, we present realistic 3D head modeling and facial expression systems. For 3D head modeling, we perform generic model fitting to make individual head shape and texture mapping. To calculate the deformation function in the generic model fitting, we determine correspondence between individual heads and the generic model. Then, we reconstruct the feature points to 3D with simultaneously captured images from calibrated stereo camera. For texture mapping, we project the fitted generic model to image and map the texture in the predefined triangle mesh to generic model. To prevent extracting the wrong texture, we propose a simple method using a modified interpolation function. For generating 3D facial expression, we use the vector muscle based algorithm. For more realistic facial expression, we add the deformation of the skin according to the jaw rotation to basic vector muscle model and apply mass spring model. Finally, several 3D facial expression results are shown at the end of the paper.

A study on multipoint binary file transfer protocol protocol estabilishment mechanism throughout generic model (멀티미디어 회의 원형모델을 통한 다지점이진화일전송 프로토콜 설정 메카니즘)

  • 고기원;김영선
    • Proceedings of the IEEK Conference
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    • 1998.06a
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    • pp.729-732
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    • 1998
  • ITU-T recommends T.120 for multimedia conferencing data protocols. In this paper, generic model of application protocols is shown for guaranteeting internetworking between application protocols in application users. And using generic conference control and multipoint communication service, multipoint binary file transfer application protocol is shown throughout application protocol generic model on public session environment.

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Building a Market Share Model of Alternative Fuel Vehicles: From Generic System Archetypes to System Dynamics Modeling (시스템 원형을 활용한 시스템 다이내믹스 모형 구축: 대체연료차량 시장 모형의 예)

  • Kwon, Tae-Hyeong
    • Korean System Dynamics Review
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    • v.9 no.2
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    • pp.27-43
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    • 2008
  • This study investigates market barriers in increasing the market share of Alternative Fuel Vehicles (AFVs). In particular, this study first conceptualizes the AFVs market model with the aid of generic system archetypes suggested by Wolstenholme. Among four generic system archetypes suggested by Wolstenholme, the market structure of AFVs can be explained by the 'relative achievement' archetype. Starting from the generic system archetype, this study extends the model boundary step by step to take account of various model assumptions necessary to simulate the model numerically. If there is a significant network effect on vehicle operating costs, it is difficult to achieve the shift to AFVs even in the long term without a policy intervention because the car market is locked into the current structure. There are several possible policy options to break the 'locked-in' structure of the car market, such as subsidies on vehicles, subsidies on fuels, and a niche management policy.

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Designing and Implementing XML DBMS based on Generic Data Model (Generic Data Model 기반의 XML DBMS 설계 및 구현)

  • 임종선;주경수
    • The Journal of Society for e-Business Studies
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    • v.8 no.1
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    • pp.103-111
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    • 2003
  • Nowadays XML is used for exchanging information in e-Commerce, especially B2B. Necessity of XML DBMS has being increased to efficiently process XML data. So a lots of database products for supporting XML are rapidly appeared in the market. In this paper, we made an XML DBMS system based on Generic Data Model. First we developed XML Adaptor based on Generic Data Model and added it on relational DBMS for developing XML DBMS. XML Adaptor is composed of Query Convertor and XML Repository System. The Query Convertor parse commands that are for XML data manipulation and then call the relevant component of XML Repository System for relational database operation. The XML Repository System handles relational database operations such as create, delete, store, and etc. In this way we can use a relational DBMS for manipulation XML data. Therefor we can build more economically XML DBMS.

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A Study on the Rejection Algorithm Using Generic Word Model Based on Diphone Subword Unit (다이폰 기반의 Generic Word Model을 이용한 거절 알고리즘)

  • Chung, Ik-Joo;Chung, Hoon
    • Speech Sciences
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    • v.10 no.2
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    • pp.15-25
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    • 2003
  • In this paper, we propose an algorithm on OOV(Out-of-Vocabulary) rejection based on two-stage method. In the first stage, the algorithm rejects OOVs using generic word model, and then in the second stage, for further reduction of false acceptance, it rejects words which have low similarity to the candidate by measuring the distance between HMM models. For the experiment, we choose 20 in-vocabulary words out of PBW445 DB distributed by ETRI. In case that the first stage is processed only, the false acceptance is 3% with 100% correct acceptance, and in case both stages are processed, the false acceptance is reduced to 1% with 100% correct acceptance.

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3D Generic Vertebra Model for Computer Aided Diagnosis (컴퓨터를 이용한 의료 진단용 3차원 척추 제네릭 모델)

  • Lee, Ju-Sung;Baek, Seung-Yeob;Lee, Kun-Woo
    • Korean Journal of Computational Design and Engineering
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    • v.15 no.4
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    • pp.297-305
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    • 2010
  • Medical image acquisition techniques such as CT and MRI have disadvantages in that the numerous time and efforts are needed. Furthermore, a great amount of radiation exposure is an inherent proberty of the CT imaging technique, a number of side-effects are expected from such method. To improve such conventional methods, a number of novel methods that can obtain 3D medical images from a few X-ray images, such as algebraic reconstruction technique (ART), have been developed. Such methods deform a generic model of the internal body part and fit them into the X-ray images to obtain the 3D model; the initial shape, therefore, affects the entire fitting process in a great deal. From this fact, we propose a novel method that can generate a 3D vertebraic generic model based on the statistical database of CT scans in this study. Moreover, we also discuss a method to generate patient-tailored generic model using the facts obtained from the statistical analysis. To do so, the mesh topologies of CT-scanned 3D vertebra models are modified to be identical to each other, and the database is constructed based on them. Furthermore, from the results of a statistical analysis on the database, the tendency of shape distribution is characterized, and the modeling parameters are extracted. By using these modeling parameters for generating the patient-tailored generic model, the computational speed and accuracy of ART can greatly be improved. Furthermore, although this study only includes an application to the C1 (Atlas) vertebra, the entire framework of our method can be applied to other body parts generally. Therefore, it is expected that the proposed method can benefit the various medical imaging applications.

A Context Model Comparison Methodology for Developing Generic Context Model used in Ubiquitous Multi-Services (유비쿼터스 멀티 서비스 개발에서의 일반적 상황모형 구축을 위한 상황모형 비교 평가방법론)

  • Park, Tae-Hwan;Kwon, Oh-Hyung
    • Journal of Intelligence and Information Systems
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    • v.13 no.1
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    • pp.29-47
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    • 2007
  • Acquiring context data in a timely and correct way is now regarded as one of the crucial characteristics of the proactive service which runs on ubiquitous computing environment. Moreover, context model should be well designed to provide a solid context-aware system. Since the ubiquitous computing systems aim to provide context-aware services everywhere with any available devices, legacy services which uses context models assuming single or limited domain should be extended enough to be useful even for multi-domain muli-services. This leads us to a motivation to build a generic context model with an appropriate type of model. Hence, the purpose of this paper is to propose a generic context model by assessing a variety of model types with a sort of evaluation measures.

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Hybridized Decision Tree methods for Detecting Generic Attack on Ciphertext

  • Alsariera, Yazan Ahmad
    • International Journal of Computer Science & Network Security
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    • v.21 no.7
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    • pp.56-62
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    • 2021
  • The surge in generic attacks execution against cipher text on the computer network has led to the continuous advancement of the mechanisms to protect information integrity and confidentiality. The implementation of explicit decision tree machine learning algorithm is reported to accurately classifier generic attacks better than some multi-classification algorithms as the multi-classification method suffers from detection oversight. However, there is a need to improve the accuracy and reduce the false alarm rate. Therefore, this study aims to improve generic attack classification by implementing two hybridized decision tree algorithms namely Naïve Bayes Decision tree (NBTree) and Logistic Model tree (LMT). The proposed hybridized methods were developed using the 10-fold cross-validation technique to avoid overfitting. The generic attack detector produced a 99.8% accuracy, an FPR score of 0.002 and an MCC score of 0.995. The performances of the proposed methods were better than the existing decision tree method. Similarly, the proposed method outperformed multi-classification methods for detecting generic attacks. Hence, it is recommended to implement hybridized decision tree method for detecting generic attacks on a computer network.

Development of a Model-Driven Approach Based API Translator for Embedded Software (모델 기반 접근 방법을 이용한 임베디드 S/W를 위한 API 변환기의 개발)

  • Park, Byeong-Ryul;Maeng, Ji-Chan;Lee, Jong-Bum;Ryu, Min-Soo;Ahn, Hyun-Sik;Jeong, Gu-Min
    • Journal of the Institute of Convergence Signal Processing
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    • v.8 no.4
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    • pp.272-278
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    • 2007
  • In this paper, we present an automated API translator for embedded software development based on a model-driven approach. Since MDA(Model Driven Architecture) provides little support for the development of embedded software, we propose a new method which contains the MDA's advantage, automation of implement process, and can solve the problem of real-time overhead. First, we define 'generic APIs' which do not depend on any RTOS's but provide most of typical RTOS services. We can describe RTOS-related behaviors of target application using these generic APIs in a CIC(Common Intermediate Code). Then, we propose a transformation tool for translating a CIC using generic APIs into a C-code for specific RTOS. The proposed API translator converts them into C-code using XML transformation rule which is defined outside. It indicates that an API translator extends to other RTOS's by modifying or adding the transformation rule. From the experiment, we validate the proposed method.

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