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Document Classification Method with Small Training Data
Yasunari MAEDA,Hideki YOSHIDA,Toshiyasu MATSUSHIMA 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
Document classification is one of important topics in the field of NLP(Natural Language Processing). In our previous research we’ve proposed a document classification method which minimizes an error rate with reference to a Bayes criterion. But when the number of documents in training data is small, the accuracy of the previous method is low. So in this research we propose a document classification method whose accuracy is higher than the previous method when the number of documents in training data is small.
( Yasunari Sakamoto ),( Shingo Kato ),( Yusuke Sekino ),( Eiji Sakai ),( Takashi Uchiyama ),( Hiroshi Iida ),( Kunihiro Hosono ),( Hiroki Endo ),( Koji Fujita ),( Tomoko Koide ),( Hirokazu Takahashi ) 대한소화기기능성질환·운동학회 2011 Journal of Neurogastroenterology and Motility (JNM Vol.17 No.2
Background/Aims There are few reports on the correlation between chewing gum and the gastrointestinal functions. But previous report showed use of chewing gum to be an effective method for controlling gastrointestinal symptoms. The aim of this study was to determine the correlation between chewing gum and gastric emptying using the continuous real time 13C breath test (BreathID system). Methods Ten healthy male volunteers participated in this randomized, 2-way crossover study. The subjects fasted overnight and were randomly assigned to chewing gum (Xylish, 2-3/1 tablet) for an hour following intake of a test meal (200 kcal/200 mL) or intake of the test meal alone. Gastric emptying was monitored for 4 hours after administration of the test meal by the 13C-acetic acid breath test performed continually using the BreathID system. Results No significant differences in the calculated parameters, namely, T1/2 (median, 111.82 vs 109.26 minutes; P = 0.575), Tlag (median, 53.28 vs 56.53 minutes; P = 0.333), gastric emptying coefficient (median, 3.58 vs 3.65; P = 0.285), regression-estimated constant β (median, 1.85 vs 1.80; P = 0.575) and regression-estimated constant κ (median, 0.61 vs 0.62; P = 0.959) were observed between the test meal alone group and the test meal and chewing gum group. Conclusions This study showed that chewing gum had no effect on the rate of gastric emptying. Therefore, since chewing gum did not enhance the speed of gastric emptying, it may ameliorate gastrointestinal symptoms through other mechanisms, such as saliva and autonomic nervous system. (J Neurogastroenterol Motil 2011;17:174-179)
( Yasunari Sakamoto ),( Yusuke Sekino ),( Eiji Yamada ),( Hidenori Ohkubo ),( Takuma Higurashi ),( Eiji Sakai ),( Hiroshi Iida ),( Kunihiro Hosono ),( Hiroki Endo ),( Takashi Nonaka ),( Tamon Ikeda ) 대한소화기기능성질환·운동학회 2011 Journal of Neurogastroenterology and Motility (JNM Vol.17 No.4
Background/Aims The administration of liquid nutrients to patients is often accompanied by complications such as gastroesophageal reflux. To prevent gastroesophageal reflux, high-viscosity liquid meals are used widely, however, it still remains controversial whether high-viscosity liquid meals have any effect on the rate of gastric emptying. The present study was conducted with the aim of determining whether high-viscosity liquid meals had any effect on the rate of gastric emptying and mosapride might accelerate the rate of gastric emptying of high-viscosity liquid meals. Methods Six healthy male volunteers underwent 3 tests at intervals of > 1 week. After fasting for > 8 hours, each subject received one of three test meals (liquid meal only, high-viscosity liquid meal [liquid meal plus pectin] only, or high-viscosity liquid meal 30 minutes after intake of mosapride). A 13C-acetic acid breath test was performed, which monitored the rate of gastric emptying for 4 hours. Using the Oridion Research Software (β version), breath test parameters were calculated. The study parameters were examined for all the 3 test conditions and compared using the Freidman test. Results Gastric emptying was significantly delayed following intake of a high-viscosity liquid meal alone as compared with a liquid meal alone; however, intake of mosapride prior to a high-viscosity liquid meal was associated with a significantly accelerated rate of gastric emptying as compared with a high-viscosity liquid meal alone. Conclusions This study showed that high-viscosity liquid meals delayed gastric emptying: however, mosapride recovered the delayed rate of gastric emptying by high-viscosity liquid meals. (J Neurogastroenterol Motil 2011;17:395-401)
Digital Enhancement of Language Learning: Students as Classroom Learning Resource
( Yasunari Harada ),( Mayumi Kawamura ),( Kanako Maebo ) 경희대학교 언어연구소 2007 언어연구 Vol.24 No.1
The first author has designed and implemented college English classes emphasizing face-to-face oral interactions within small groups of students in class, presupposing and expecting further cultivation of learners` ability to learn for themselves, by themselves and among themselves. In this paper, we discuss some of the pedagogical considerations behind those designs of class activities and touch upon a related project on digitally recording students` interactions. It is interesting to notice, in passing, how introduction of various recording devices into those language classes positively affect students` motivations and performances in their learning activities.
The Role of Questions in Managing Affect and Emotional Involvement in Japanese Conversations
Yasunari Asuka 세종대학교 언어연구소 2018 Journal of Universal Language Vol.19 No.2
Recipients of extended sequences of conversation display alignment to the speaker not only through response tokens such as continuers and assessments but also through various interrogative formats for (1) initiating repair, (2) formulating understandings, (3) seeking agreement, and (4) soliciting elaboration. This article examines the use of four types of questions (specifying, follow-up, leading, and summarizing) and illustrates what marks an interaction as polite and friendly in Japanese conversation. It is proposed that listeners initially offer support for the speaker‟s perspective, even if they will go on to disagree with it, in order to construct and sustain a positive affiliation with the speaker. In this collaborative process, affect is jointly negotiated and constructed. This type of interaction has interesting implications for universality and cultural specificity when it comes to conversations.
On Reduced Juxtaposition in Japanese
Harada, Yasunari 서울대학교 어학연구소 1991 語學硏究 Vol.27 No.1
Reduced juxtaposition is a construction in Japanese that is somewhat similar to non-constituent coordination in English. Syntactic and semantic rules are proposed for dealing with this ellipsis within a phrase-structure-based approach to natural language grammar description.
Heart’s Motion Derived From Vibration of the Chest
Fumio Nogata,Yasunari Yokota,Yoko Kawamura 한국재활복지공학회 2012 한국재활복지공학회 학술대회논문집 Vol.2012 No.11
We found that slight vibration of the chest surface due to a heartbeat allows visualizing the heart motion, which would assist to understand heart function. This technique is based on a multi-channel vibration sensor and signal/image processing units. Vibration modes of the chest surface have three or four frequencies bands. Contour of a heart wall with data of 1-50 Hz, also shock wave and locations of valves with higher frequency could be visualized. The technique may allow to monitoring heart motion in pre-and postoperative state to understand irregular heartbeat, heart motion during sleeping and in mental tension without using ultrasound cardiographyly.