The ICNALE Spoken Dialogue: A New Dataset for the Study of Asian Learners’ Performance in L2 English Interviews

Shin’ichiro Ishikawa 한국영어교육학회 2019 ENGLISH TEACHING(영어교육) Vol.74 No.4

This paper first surveys three kinds of learner interview corpora (LINDSEI, NICT-JLE Corpus, and Trinity Lancaster Corpus), paying particular attention to their interview structures. Then, it explains the principles and features of the ICNALE Spoken Dialogue (ICNALE SD), which includes 425 videos and approximately 1.6-million-word transcripts of the L2 English interviews with 405 learners from ten regions in Asia and twenty native speakers. The ICNALE SD is one of the largest learner interview corpora and practically the sole dataset for the analysis of dialogue speeches by various Asian learners. As a case study based on the ICNALE SD, the author sought to find out how fluently learners in different regions speak in the interviews, which words they characteristically use, and which relationship is observed among them.

韓国学習者の日本語動詞獲得モデル: 学習者総体モデルとの比較 ― 「多言語母語の日本語学習者横断コーパス」の絵描写作文を用いた検証 ―

石川慎一郎 ( Shin’ichiro¸ Ishikawa ) 한국일어교육학회 2021 일본어교육연구 Vol.- No.56

本論文では「多言語母語の日本語学習者横断コーパス」(I-JAS)に含まれる韓国学習者(KLJ)による絵描写作文を習熟度レベルごとに分析し、KLJの動詞獲得過程のモデル化を試みた。分析結果は、同コーパスに含まれる海外日本語学習者の総体(WLJ)データを分析した石川(2021)と比較された。RQ1(動詞使用量)については、習熟度別に見た場合、KLJとWLJともに逆U字型のパタンを示すことが確認された。RQ2(マーカー動詞)に関して、母語話者との比較の結果、KLJが使用できない動詞には(a)複合動詞,(b)慣用動詞、(c)否定的ニュアンスを含む動詞など、KLJのみが使用する動詞には(d)意思·意図に関する誤用、(e)文脈の不適合、(f)複合動詞要素の誤用、(g)不要な内容の言語化などが含まれ、いずれもWLJと同じパタンを示すことが確認された。RQ3(習熟度分類)については、KLJの動詞獲得がⅠ(存在動詞·移動動詞など)→Ⅱ(動詞の拡張)→Ⅲ(複合動詞成分·アスペクト成分·サ変動詞など)→Ⅳ(高度な複合動詞成分·変化動詞など)の4段階に区分され、ほぼWLJに重なることが示された。RQ4(習熟度推定)については、7種の動詞(入る·為る·見る·仕舞う·知る·来る·入れる)の使用頻度によって習熟度を63%の精度で予測できるが、予測モデルに含まれる動詞はWLJの場合とは異なることが示された。動詞獲得におけるKLJの固有特性は限定的で、KLJの特徴の大部分は日本語学習者全般の特徴であると言える。この点をふまえれば、日本語学習者コーパス研究においては、L1差よりもL2習熟度差を優先した分析が必要だと考えられる。 Using the International Corpus of Japanese as a Second Language (I-JAS), this study analyzed the picture description essays written by Korean learners of Japanese (KLJ) at different L2 proficiency levels to explore the process of their acquisition of L2 Japanese verbs. The results were compared to the verb acquisition process of the whole learners of Japanese (WLJ) reported in Ishikawa (2021). The corpus-based analyses showed that (1) an inverted U pattern existed in terms of the number of tokens/ types of the verbs used in the essays for both KLJ and WLJ, (2) when compared to the verb usage of Japanese native-speakers (JNS), some verbs were used only by JNS and others only by KLJ, and these “marker” verbs were almost the same for KLJ and WLJ, (3) KLJ’s verb acquisition process could be subdivided into four stages: 1 (existential verbs/ verbs of moving), 2 (a greater variety of verbs), 3 (composite verbs and aspectual verbs), and 4 (complex composite verbs and verbs of change), which were almost identical to the patterns for WLJ, and (4) KLJ’s L2 proficiency could be explained by the frequency of seven types of verbs (hairu, suru, miru, shimau, shiru, kuru, ireru) with 63% accuracy, though these verbs were different from a set of verbs adopted in the regression model for WLJ. These findings corroborated that KLJ’s verb acquisition pattern did not differ much from the pattern for WLJ, which may suggest the need for the Japanese learner corpus studies focusing on learners’ L2 proficiency rather than on their L1 types.

Smallest halos in thermal wino dark matter

Ando, Shin’ichiro,Kamada, Ayuki,Sekiguchi, Toyokazu,Takahashi, Tomo American Physical Society 2019 Physical Review D Vol.100 No.12

해외리포트 - 편광소자의 광학특성의 한계

Toda, Shin-ichiro 한국광학기기산업협회 2009 光學世界 Vol.122 No.-

이번호에는 광기술컨텍트 2009년 5월호 <특집:광학기술의 한계>에서 Toda Shin-ichiro씨가 기고한 '편광소자의 광학특성의 한계' 내용을 번역하여 게재한다. 최근 노광기, 광기록을 비롯하여 레이저 가공, 광계측 등 여러 분야에 걸쳐 광원파장의 단파장화가 진행되고 있다. 이러한 상황 속에서 광학부품의 하나인 편광자의 자외화(紫外化)에 대한 필요성이 요구되고 있다. 성능적으로 밸런스가 좋은 편광자로 글랜 톰슨 프리즘을 들 수 있는데 본 고에서는 글랜 톰슨 프리즘 구조에서 파장 $\lambda$=1800nm부터 사용 가능하고 투과율도 높은 편광자와 그 제작 시의 문제점에 대해 설명하고 있다.

Statistical Correction Method of Nonlinearity Due to Logarithm Operation in Consideration of Clamp Processing of X-ray CT Projection Data

Shin-ichiro Iwamo,Akira Shiozaki 대한전자공학회 2007 ITC-CSCC :International Technical Conference on Ci Vol.2007 No.7

In the acquisition of projection data in X-ray CT, logarithm operation is indispensable. But noise distribution is asymmetrically projected by the nonlinearity of logarithm operation, and the precision of the CT number of a reconstructed image degrades remarkably. Previously we proposed a simple correction method of the projection data according to the statistical distribution of noise. But when captured photons are very few, a detector output-signal frequently has negative value and we have to carry out clamp processing compulsorily due to the non-zero/non-negative restriction in the logarithm operation. In this paper, we propose a new method for statistically rectifying not only the influence of the nonlinearity of logarithm operation but also the influence of clamp processing. Furthermore, computer simulations using numerical phantoms are carried out to check the validity of the proposed method, and the quality of reconstructed images is compared with that of a conventional method.

A Mobility System for Lunar Rough Terrain

Shin-Ichiro Nishida,Sachiko Wakabayashi 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8

JAXA is carrying out research and development of a mobile robot (rover) aimed at construction of human outpost and scientific exploration on the lunar surface. The target areas for base construction and lunar exploration are mainly in mountainous zones, and the surface is covered by regolith. Achieving a steady run on such rough terrain is the big technical problem for rovers. A newly developed lightweight crawler mechanism is good for driving on such irregular terrain because of its low contact force with the ground. This was determined considering the mass and expected payload of the rover. This paper describes the technologies of the rover designed for lunar exploration and base construction work, and presents the results of study into methods of dynamics testing and analysis which are needed in its development. This paper gives an overview of composition of the lunar rover mobility and control system.

Enzymatic Polymerization of Activated Glycosyl Monomers for Highly Selective Polysaccharide Synthesis

Shin ichiro Shoda 한국고분자학회 1996 한국고분자학회 학술대회 연구논문 초록집 Vol.1996 No.10

Moving Objects Detection at an Intersection by Sequential Background Extraction

Shin-ichiro Sonoda,Joo Kooi Tan,Hyoungseop Kim,Seiji Ishikawa,Takashi Morie 제어로봇시스템학회 2011 제어로봇시스템학회 국제학술대회 논문집 Vol.2011 No.10

Recently, there are many traffic accidents in turning right at an intersection. They are mainly caused by a driver’s oversight of pedestrians and motorcycles that are occluded by oncoming cars. Therefore a system is necessary to detect moving objects such as oncoming cars and pedestrians at an intersection, and warn a vehicle driver. This paper describes a technique for detecting moving objects in turning right at an intersection when vehicle is stopping. Moving objects are detected by Mixture of Gaussians (MoG). In addition, we distinguish cars from pedestrians using the difference of the area size and the aspect ratio of detected objects. The object which is classified as a pedestrian is tracked using Lucas-Kanade Tracker. If the detected cars and pedestrians overlap or a car completely obscures pedestrians, we perform the estimation of pedestrian’s location by using the information on past frames. By doing this, it is possible to detect pedestrians that drivers are actually difficult to see. The performance of the proposed technique was examined employing car videos and satisfactory results were obtained.

Lexicogrammar of the L2 English Essays Written by Asian College Students: A Corpus-Based Study

Shin’ichiro Ishikawa 아시아테플 2024 The Journal of Asia TEFL Vol.21 No.1

本研究においては、中間言語対照分析(Granger, 1996, 2015)および多次元分析法(Biber, 1988) という2つの手法を組み合わせ、International Corpus Network of Asian Learners of English (ICNALE; Ishikawa, 2023)から採取されたアジア圏大学生(中国・インドネシア・日本・大韓 民国・台湾・タイ)および英語母語話者の作文を比較した。次元スコア・主要語彙文法特性 ・クラスタリング・統計的分類に基づく分析により、学習者の作文は母語話者のものより情 報性・語り性・明示的表出性・抽象性・時間制約性が低く、学習者の作文の語彙文法特性は 習熟度よりも国・地域に影響されていること、学習者作文は口語的・個人的、対人的・説得 的、静的・描写的動的・反芻的の4 タイプに分類されることなどが示された。これらの結果 は、アジア圏学習者のL2英語使用の理解に新しい光を投げかけるものである。

A Study of Project Design -Establishing "Departmennt of Project Design" in Japan-

( Shin Ichiro Sakamoto ),( Tsuyosi Otani ),( Ko Ichiro Fujimoto ) 한국일본근대학회 2005 일본근대학연구 Vol.0 No.11

TheMiyagi university which Miyagi Prefecture established inApril, 1997 is the university which consists of the first business conception , the project design department and the school of nursingscience in our country. First,in the this research, the process of the establishmentin this project design department is described. Next, the decision-process of thename of the department is described. Moreover, it considers about the feature of the curriculum and itclarifies about " the fusing of the case studyand the theory education ". I contributed to theestablishment of the concept of the project design with this research.