텍스트 증강 기법과 전이학습을 활용한 의도 분류 방법 제안

이희원,박성호,이채원,이승현,이강배 한국정보과학회 2024 정보과학회논문지 Vol.51 No.2

Intent classification is the first step of task-directed chatbots and is an important phase in performance improvement. However, task-oriented chatbots are limited by a lack of data for specific domains. The purpose of this study is to solve the problem of data limitation by utilizing text augmentation techniques and transfer learning. Previously, studies using transfer learning and text augmentation techniques existed, but it was difficult to find studies applicable to various domains. This study proposes a text augmentation technique and transfer learning method applicable to various domains. For the experiment, less than 10,000, 20,000, and 30,000 data were constructed according to the ratio of actual utterance intentions in 8 domains. As a result of the experiment, although differences existed depending on the domain, it was confirmed that the method proposed in this study was excellent for all 8 domains. It was confirmed that the accuracy for the 8 domains improved by 10%, 3.4%, and 1.9%, respectively on average with the decreasing size of the training data, and the F1-Score improved by 30%, 12%, and 7.5%, respectively on average.

MATRIX ELEMENTS AND CROSS SECTION OF RAMAN SCATTERING BY ATOMIC HYDROGEN

이희원,Lee, Hee-Won The Korean Astronomical Society 2007 天文學論叢 Vol.22 No.1

Ever since the identification of 6830 and 7088 features as the Raman scattered O VI 1032, 1038 resonance doublets in symbiotic stars by Schmid (1989), Raman scattering by atomic hydrogen has been a very unique tool to investigate the mass transfer processes in symbiotic stars. Discovery of Raman scattered He II in young planetary nebulae (NGC 7027, NGC 6302, IC 5117) allow one to expect that Raman scattering can be an extremely useful tool to look into the mass loss processes in these objects. Because hydrogen is a single electron atom, their wavefunctions are known in closed form, so that exact calculations of cross sections are feasible. In this paper, I review some basic properties of Raman scattered features and present detailed and explicit matrix elements for computation of the scattering cross section of radiation with atomic hydrogen. Some astrophysical objects for which Raman scattering may be observationally pertinent are briefly mentioned.

하악골에 외력의 작용시 악골 및 악관절 부위에 미치는 영향에 관한 역학적 연구

이희원,배태성,신효근,김오환 全北大學校 齒醫學硏究所 1992 전북치대논문집 Vol.10 No.1

This study was carried out to evaluate the mechanical effects of the applied forces on mandible and temporomandibular joint. The experimental strain analysis of a mandible was performed by using strain gauge and photoelastic coating method, and the numerical model analysis was performed by using finite element method. The results obtained were as follows ; 1. The tendency of fracture was low in the mandible under vertical load at the symphysis and the mandibular body, but high at the symphysis under lateral load at the symphysis. 2. The tendency of fracture was high at the concyle neck under vertical load at the angle, and the low strains were exhibited in the opposite mandibular body under vertical load at the mandibular body and the angle. 3. Stresses were low in the condyle neck and the mandibular fossa but high in the canine and the 1st premolar under vertical load at the symphysis and the mandibular body. 4. The effects of stress concentration were high at the condyle neck, the 2nd molar and distal alveolar bone, and the mandibular fossa. The maximum epuivalent stress was 5.82㎏/㎠ at the condyle neck under vertical load of 1㎏ at the angle, the fracture tendency was high at the condyle neck under the load of 150㎏ more. 5. The effects of stress concentration were high at the condyle neck, the retromolar area, and the mandibular body under vertical load at the angle when the molar were unsupported. 6. The maximim equivalent stress was 9.25㎏/㎠ at the cusp of canine under the vertical load of 1㎏ at the angle when the 1st and 2nd molar unsupported, the fracture tendency was high at the cusp of canine. 7. The effects of stress concentration were high at the mandibular fossa, the condyle neck, and the retromolar area under the parallel load of 1㎏ at the symphysis for the mandibular body. The equivalent stress was 16.58㎏/㎠ at the concyle neck under the parallel load of 1㎏, the fracture tendency was high at the condyle neck under the load of 60㎏ more.

Histrionic Cleopatra as a Critic of Patriarchy - A Feminist Study of Antony and Cleopatra

이희원 한국셰익스피어학회 1995 셰익스피어 비평 Vol.27 No.-

영상 음원법을 이용한 실내 음향 특성의 예측

이희원 서울산업대학교 산업대학원 1992 大學院論文集 Vol.1 No.1

본 연구에서는 건축물이 갖게될 음향학적 특성을 미리 예측함으로써 그 건축물의 음향학적 요구에 맞는 설계를 수행할 수 있도록 하기 위해 computer simuation 방법을 개발하였다. 본 연구에서 사용된 simulation 방법은 영상음원법을 기초로 하였으며, simulation에 의한 임펄스 응답이 유한한 시간 내로 제한되어 발생되어 오차를 줄이기 위한 방법이 제시 되었다, 개발된 simulation방법으로 실내에서의 임펄스 응답,잔향,곡선,early/rate energy ratio 등을 예측하고 실험 결과와 비교 하였으며, 실용적인 응용 가능성도 검토하였다. A computer simulation technique using image method is developed for the prediction of the acoustical characteristics of a room. Also a method of compensating simulation error is proposed because the simulated impulse response is truncated to the finite time duration. The results of simulation are the sound ray paths from source to energy decay, and the early/late sound energy ratio at the audience area.

일제 말기 이효석 소설의 공간-주체 연구

이희원 문창어문학회 2018 문창어문논집 Vol.54 No.-

영상 음원법을 이용한 실내 음향 특성의 예측

이희원,이병호 한국음향학회 1990 韓國音響學會誌 Vol.9 No.6

건축물이 갖게 될 음향학적 특성을 미리 예측함으로써 그 건축물의 음향학적 특성을 미리 예측 함으로써 그 건축물의 음향학적 요구에 맞는 설계를 수행할 수 있도록 하기 위해 computer simulation 방법을 개발하였다. 본 연구에서 사용된 simulation 방법은 영상음원법을 기초로 하였으며, simulation 에 의한 임펄스 응답이 유한한 시간 내로 제한되어 발생되어 오차를 줄이기 위한 방법이 제시되었다. 개발된 simulatio 방법으로 실내에서의 임펄스 응답, 잔향 곡선, early/rate energy ratio 등을 예측하고 실험 결과와 비교 하였으며, 실용적인 응용 가능성도 검토하였다.

연안어장 생태환경 피해 유발 해양생물 데이터셋 구축

이희원,박수호,이인지,장선웅 해양환경안전학회 2022 해양환경안전학회 학술발표대회 논문집 Vol.2022 No.11

스트루가츠키 형제 문학의 OSMT와 『신 노릇은 어렵다』의 문화번역

이희원 한국러시아문학회 2023 러시아어문학 연구논집 Vol.80 No.-

The works of the brothers Arkady and Boris Strugatsky, who are representative writers of Russian-Soviet SF literature and the world’s most-read SF writers, have been translated into more than 42 languages around the world. The Strugatsky brothers’ literary language, allegory, and symbolism developed a specific literacy for their readers and exerts a wide range of cultural influences. Twenty-two works of the Strugatskys, including novels, plays, and screenplays, have been made into films by various directors as well as in Russia and other countries. At the same time, the Strugatskys’ works are quickly adapted into various other media and cultural genres such as movies, video games, and PC games, not only because of the significance of their themes but also because their works are full of visual or image language and have a high potential for translation into images. In this study were analyzed the characteristics of visual language, which is a key medium in converting the Strugatskys’ works into different media or symbol systems, and in terms of ‘OSMU(One Source Multi Use)’ and ‘OSMT(One Source Multi Territory)’, which well reveals the cultural expandability of the Strugatskys’ literature as cultural contents. To this end, the works of the Strugatskys, which have been converted into various genres, are briefly surveyed and is discussed the literary significance of Hard to Be a God, the most beloved novel among the Strugatskys’ works. Two cases of the adaptation into films were compared and analyzed with the literature: Es ist nicht leicht ein Gott zu sein (1989) by German director Peter Fleischmann and Hard to Be God (2013) by Russian director Alexei German.

`모두`가 되기 위한 `우리`의 계보

이희원 오늘의 문예비평 2017 오늘의 문예비평 Vol.- No.105