• Title/Summary/Keyword: 생성형 모델

Search Result 849, Processing Time 0.026 seconds

A Persistence Framework Based SQL (SQL 기반 퍼시스턴스 프레임워크)

  • Cho, Dongil-Il;Rhew, Sung-Yul
    • The KIPS Transactions:PartD
    • /
    • v.15D no.4
    • /
    • pp.549-556
    • /
    • 2008
  • Web-based Enterprise Intranet System is developed Object-oriented programming language and data management is constructed using RDBMS. Between Object-oriented programming language and RDBMS bring about "Object-Relational Impedance Mismatch" due to heterogeneous paradigm. To solve this kinds of problems commonly use the ORM Framework that it is converting data between incompatible type systems in databases and object-oriented programming languages, uses complex mapping metadata. It causes difficult to develop and maintain because of inflexible in changes. This paper proposed persistence framework that solve the existing complexity of ORM framework and has more flexible in evolution of database table. This persistence framework is unnecessary meta information that connecting with entity of database table and the objects, it offers users convenience of maintenance and it allows far more flexible and affordable systems to be built because of automatically code generation. The result of testing based on the proposed persistence framework with Hibernate, iBATIS, It is similar response time with iBATIS and it has more about three times faster than Hibernate. But iBATIS has problems of mass data processing.

A Development of a Framework for Building Knowledge based Augmented Reality System (지식기반 증강현실 시스템 구축을 위한 프레임워크 개발)

  • Woo, Chong-Woo;Lee, Doo-Hee
    • Journal of the Korea Society of Computer and Information
    • /
    • v.16 no.7
    • /
    • pp.49-58
    • /
    • 2011
  • Augmented Reality(AR) assists human's cognitive ability through the information visualization by substantiating information about virtual situation. This technology is studied in a variety of ways including education, design, industry, and so on, by various supply of information devices equipped with cameras and display monitors. Since the most of the AR system depends on limited interaction that responds to the order from user, it can not reflect diverse real world situation. In this study, we suggest a knowledge based augmented reality system, which is composed of context awareness agent that provides recognized context information, along with knowledge based component that provides intelligent capability by utilizing domain knowledges. With this capability, the augmented object can generate dynamic model intelligently by reflecting context information, and can make the interaction possible among the multiple objects. We developed rule based context awareness system along with 3D model generation, and tested interaction among the augmented objects. And we suggest a framework that can provide a convenient way of developing augmented reality system for user.

Studies on the Development of Cocoa Butter Equivalent Fat by Reverse - Micelle Enzyme Reaction System (역마이셀-효소반응계에 의한 코코아 버터 대용지 개발에 관한 연구)

  • Yoon, Seung-Heon;Shin, Woong-Kyu;Lee, Yoon-Hyung;Rhee, Kyu-Soon
    • Korean Journal of Food Science and Technology
    • /
    • v.24 no.2
    • /
    • pp.111-116
    • /
    • 1992
  • Production of cocoa butter equivalent fat (CBE) from palm oil and stearic acid by reverse micelle lipase reaction system was studied. Qualitative and quantitative analyses of triglycerides were performed by HPLC. The reaction conditions for maximum conversion from triolein and stearic acid to 1-stearoyl-2,3-dioleoyl glycerol(SOO) and 1,3-distearoyl-2-oleoyl glycerol(SOS) were as follows: a molar ratio of water/Aerosol OT, 10; triolein, 30 mM; stearic acid, 90 mM; pH, 7.5; and temperature, $50^{\circ}C$. By lipase in reverse micellar system containing palm oil and stearic acid, 1,3-dipalmitoyl-2-oleoyl glycerol(POP), 1-palmitoyl-2,3-dioleoyl glycerol(POO) and SOO decreased, but large amounts of 1-palmitoyl-2-oleoyl-3-stearoyl glycerol(POS) and SOS was formed.

  • PDF

Structural and Functional Analysis of a Forkhead Gene, fkhF, in a Filamentous Fungus Aspergillus nidulans (사상성 진균 Aspergillus nidulans에서 forkhead 유전자인 fkhF의 구조와 기능 분석)

  • Park, Mi-Hye;Kim, Hyoun-Young;Kim, Jong-Hwa;Han, Kap-Hoon
    • Korean Journal of Microbiology
    • /
    • v.45 no.4
    • /
    • pp.312-317
    • /
    • 2009
  • Genome analysis of a model filamentous fungus, Aspergillus nidulans, revealed that there are six putative forkhead genes. Among them, fkhF (AN8949.2) showed A. nidulans-specific. fkhF gene is located in chromosome VII and composed of 2,337 bp coding region for 778 amino acid. Since little is known about the involvement of the forkhead proteins in the developmental process of the filamentous fungi, including A. nidulans, we generated a deletion mutant of fkhF gene and analyzed. Deletion of fkhF resulted in less-dense conidiophore formation in a solid culture. However, the sexual developmental process or cleistothecia formation was normal. Furthermore, fkhF deletion mutant produced conidiophores and conidia under the submerged culture, suggesting that the fkhF gene is involved in repression of inappropriated induction and maturation of asexual developmental process but not in sexual development.

Hardware/Software Partitioning Methodology for Reconfigurable System (재구성형 시스템을 위한 하드웨어/소프트웨어 분할 기법)

  • Kim, Jun-Yong;Ahn, Seong-Yong;Lee, Jeong-A.
    • The KIPS Transactions:PartA
    • /
    • v.11A no.5
    • /
    • pp.303-312
    • /
    • 2004
  • In this paper, we propose a methodology solving the problem of the hardware-software partitioning in reconfigurable systems using a Y-chart design space exploration and implement a simulator according to the methodology. The methodology generates a mapping set between tasks and hardware elements using the hardware element model and the application model. We evaluate the throughput by simulating cases in each mapping set. With the throughput evaluation result, we can select the mapping case with the highest throughput. We also propose an heuristic improving the simulation time by reducing the mapping set on the basis of the relationship between workload and parallelism. Simulation results show that we can reduce the size of mapping set which poses difficulties on hardware-software partitioning by up to 80%.

A Dynamic Three Dimensional Neuro System with Multi-Discriminator (다중 판별자를 가지는 동적 삼차원 뉴로 시스템)

  • Kim, Seong-Jin;Lee, Dong-Hyung;Lee, Soo-Dong
    • Journal of KIISE:Software and Applications
    • /
    • v.34 no.7
    • /
    • pp.585-594
    • /
    • 2007
  • The back propagation algorithm took a long time to learn the input patterns and was difficult to train the additional or repeated learning patterns. So Aleksander proposed the binary neural network which could overcome the disadvantages of BP Network. But it had the limitation of repeated learning and was impossible to extract a generalized pattern. In this paper, we proposed a dynamic 3 dimensional Neuro System which was consisted of a learning network which was based on weightless neural network and a feedback module which could accumulate the characteristic. The proposed system was enable to train additional and repeated patterns. Also it could be produced a generalized pattern by putting a proper threshold into each learning-net's discriminator which was resulted from learning procedures. And then we reused the generalized pattern to elevate the recognition rate. In the last processing step to decide right category, we used maximum response detector. We experimented using the MNIST database of NIST and got 99.3% of right recognition rate for training data.

Object-Oriented Database Schemata and Queiy Processing for XML Data (XML 데이타를 위한 객체지향 데이터베이스 스키마 및 질의 처리)

  • Jeong, Tae-Seon;Park, Sang-Won;Han, Sang-Yeong;Kim, Hyeong-Ju
    • Journal of KIISE:Databases
    • /
    • v.29 no.2
    • /
    • pp.89-98
    • /
    • 2002
  • As XML has become an emerging standard for information exchange on the World Wide Web it has gained attention in database communities to extract information from XML seen as a database model. Recently, many researchers have addressed the problem of storing XML data and processing XML queries using traditional database engines. Here, most of them have used relational database systems. In this paper, we show that OODBSs can be another solution. Our technique generates an OODB schema from DTDs and processes XML queries, Especially, we show that the semi-structural part of XML data can be represented by the 'inheritance' and that this can be used to improve query processing.

Effect of Application of Ensemble Method on Machine Learning with Insufficient Training Set in Developing Automated English Essay Scoring System (영작문 자동채점 시스템 개발에서 학습데이터 부족 문제 해결을 위한 앙상블 기법 적용의 효과)

  • Lee, Gyoung Ho;Lee, Kong Joo
    • Journal of KIISE
    • /
    • v.42 no.9
    • /
    • pp.1124-1132
    • /
    • 2015
  • In order to train a supervised machine learning algorithm, it is necessary to have non-biased labels and a sufficient amount of training data. However, it is difficult to collect the required non-biased labels and a sufficient amount of training data to develop an automatic English Composition scoring system. In addition, an English writing assessment is carried out using a multi-faceted evaluation of the overall level of the answer. Therefore, it is difficult to choose an appropriate machine learning algorithm for such work. In this paper, we show that it is possible to alleviate these problems through ensemble learning. The results of the experiment indicate that the ensemble technique exhibited an overall performance that was better than that of other algorithms.

Experimental Study of Leaching Phenomena of Cs-137 From a Cement Matrix Generated at PWR Plant (가압 경수로에서 생성된 시멘트 고화체로부터 Cs-137의 용출 현상의 실험적 연구)

  • Doh, Jeong-Yeul;Lee, Kun-Jai
    • Journal of Radiation Protection and Research
    • /
    • v.11 no.2
    • /
    • pp.91-103
    • /
    • 1986
  • Experimental study for the leaching behavior of Cs-137 was carried out using the simulated evaporator bottom product of PWR plant. The method of leach test proposed by the IAEA was partially modified using ANS method. The effect of various factors, i.e., sampling method, curing temperature, curing time, leachant temperature, vermiculite addition and volume-to-surface ratio, was considered in this experiment. Diffusion model in semi-infinite slab was in a good agreement with the data obtained from 4-weeks cured specimens. The effective diffusion coefficient of the specimens which were cured at the temperature of $24^{\circ}C$ for 4 weeks was found to be $1.20{\sim}1.47{\times}10^{-11}cm^2/sec$. With the experimentally obtained diffusion coefficient ($1.47{\times}10^{-11}cm^2/sec$), long-term prediction for the leaching of Cs-137 was carried out using finite-slab approximation. The estimated fraction of Cs-137 which remains in the environment is found to be less than 0.25 percent of initial amount after 100 years. About 25 years after the beginning of leaching, its fractional amount in the environment reachs the maximum value, 0.66 percent of initial amount.

  • PDF

Analysis of Leakage Current of a Laser Diode by Equivalent Circuit Model (등가회로 모델에 의한 레이저다이오드의 누설전류 해석)

  • Choi, Young-Kyu;Kim, Ki-Rae
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.11 no.2
    • /
    • pp.330-336
    • /
    • 2007
  • A single pixel photon counting type image sensor which is applicable for medical diagnosis with digitally obtained image and industrial purpose has tern designed with $0.18{\mu}m$ triple-well CMOS process. The designed single pixel for readout chip is able to be operated by single supply voltage to simplify digital X-ray image sensor module and a preamplifier which is consist of folded cascode CMOS operational amplifier has been designed to enlarge signal voltage(${\Delta}Vs$), the output voltage of preamplifier. And an externally tunable threshold voltage generator circuit which generates threshold voltage in the readout chip has been newly proposed against the conventional external threshold voltage supply. In addition, A dark current compensation circuit for reducing dark current noise from photo diode is proposed and 15bit LFSR(Linear Feedback Shift Resister) Counter which is able to have high counting frequency and small layout area is designed.