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상태당 가지 수를 가변시킨 ARHMM을 이용한 화자적응
김광태(Kim Kwang Tae),서정일(Seo Jeong Il),홍재근(Hong Jae Keun) 한국정보처리학회 1998 정보처리학회논문지 Vol.5 No.2
It is made the speaker adaptation model by adjusting both the mean and the variance of the Gaussian state observation densities of a CDHMM to use the MAPE method. However, we can't use the MAPE method in ARHMM because the components of LPC vector are used as the feature vector of ARHMM. Therefore, in this paper, we propose a speaker adaption method of ARHMM to adapt the speaker adaptation model having one branch in each state after it is divided the input utterance, which is spoken to an adapted speaker, into states by Viterbi algorithm and then make a typical vector using modified k-means algorithm. In addition we have experimented another method in which each state is represented by several branches. If the training data is insufficient, this method is not proper to train. So we vary the number of branch in proportion to the number of frame stayed in each state, and make to absorb the characteristics of speaker's pronunciation speed and duration by using the distribution of the state duration adapted to the speaker. When testing 15-word Korean domestic name isolated word model, using the proposed method, the recognition performance was found to reduce the error rate of speaker-independent systems more than 50%.
김광태,김완상,이석홍,김낙석,Kim. Kwang-Tae,Kim. Wan-Sang,Lee. Suck-Hong,Kim. Nak-Seok 한국방재학회 2007 한국방재학회 학술발표대회논문집 Vol.2007 No.1
Asphalt overlay resurfacing techniques have been widely utilized in maintaining asphalt concrete in Korea, causing severe traffic congestions while being in construction and difference in level due to the repeated overlay. Besides on these technical difficulties, there have been financial disadvantages associated with technique, mainly because overlay method has been executed for pavements with intact foundations, which is contrary to the norm. This study is aiming to increase the expected life length of the asphalt pavement up to the endurance period, to raise the efficiency of the pavement by maximizing the social benefit and to enhance public character of the street through combining ceramics with epoxy resins, which has advantages in compatibility with the existing pavement materials, durability to abrasion and endurance. It has been expected that the adoption of new method and pavement materials to the actual work sites will develop the performance of the pavements, and to lengthen the durability of the existing materials. The other advantages of the `thin surfacing` method could be the improved adhesiveness, waterproof, corrosion-proof and bending strength.
김광태 ( Kwang Tae Kim ),김준숙 ( Joon Sook Kim ),송은미 ( Eun Mi Song ) 한국일어일문학회 2013 日語日文學硏究 Vol.87 No.1
日本の大學生における性別による談話展開のパタンの樣相及び特徵を調べてみるため、分析の內容を大きく儀禮的な言語行動と意圖的な言語行動に分けた。儀禮的な言語行動である序頭談話と終結談話において、男子學生は女子學生とは違って心理的に近い關係だと思う友だちには애擦や謝罪などを省略する言語傾向が分かった。意圖的な言語行動においては、約束の取消しの理由を具體的に提示するのは相手からの理解や了解のためであり、またやむを得ない狀況を知らせることで取消し者の面子もある程度まもることができると思うためである。 なお、友だち同士で婉曲な表現や丁寧な言語表現行爲を取るのは取消される側との摩擦を減らし、關係を續けて維持したいという意圖と謝罪の意圖が含まれていると見られる。メ-ルによって日本人と約束を取消す場合、正確な文法や自然な文型の習得も重要であるが、性別による適切な談話スタイルや言語表現行爲の理解がより重要であると言えよう。 To review the aspects and characteristics of conversation development patterns of Japanese university students by gender, analysis contents were divided into formal language behaviors and intentional language behaviors. In starting and closing, which are formal language behaviors, male students do not greet or apologize to friends who they think psychologically close unlike female students. In intentional language behaviors, the reason why they explain the reason they should cancel appointment is to get understanding and acknowledgement from the counterpart. Additionally, it may be because they think they can keep their face by notifying inevitable situation. Furthermore, the reason why they use moderate expressions or polite languages to cancel appointment is to reduce conflicts and to keep the relationship intact. It also includes the intention of apology. When we need to cancel an appointment with Japanese via email, it is very important to understand appropriate conversational style and language expression behaviors according to gender as well as to know accurate vocabulary, grammar, natural expression and style.
철송 크레인 일정계획문제에 관한 연구 (A Study on Rail Crane Scheduling Problem at Rail Terminal)
김광태(Kwang-Tae Kim),김경민(Kyung Min Kim),김동희(Kim Dong-Hee) 한국철도학회 2011 한국철도학회 학술발표대회논문집 Vol.2011 No.5
This paper considers the rail crane scheduling problem with minimizing the sum of the range of order completion time and make-span of rail crane simultaneously. The range of order completion time implies the difference between the maximum of completion time and minimum of start time. Make-span refers to the time when all the tasks are completed. At a rail terminal, logistics companies wish to concentrate on their task of loading and unloading container on/from rail freight train at a time in order to increase the efficiency of their equipment such as reach stacker. In other words, they want to reduce the range of their order completion time. As a part of efforts to meet the needs, the crane schedule is rearranged based on worker’s experience. We formulate the problem as a mixed integer program. To validate the effectiveness of the model, computational experiments were conducted using a set of data randomly generated.