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13th International ACM SIGACCESS Conference on computers and Accessibility

作者： Weaver, Kimberly A. Starner, Thad Georgia Inst Technol Sch Interact Comp Atlanta GA 30332 USA

ISBN: (纸本)9781450309196

language immersion from birth is crucial to a child's language development. However, language immersion can be particularly challenging for hearing parents of deaf children to provide as they may have to overcome many difficulties while learning American Sign language (ASL). We are in the process of creating a mobile application to help hearing parents learn ASL. To this end, we have interviewed members of our target population to gain understanding of their motivations and needs when learning sign language. We found that the most common motivation for parents learning ASL is better communication with their children. Parents are most interested in acquiring more fluent sign language skills through learning to read stories to their children.

关键词： American Sign language mobile devices computer assisted language learning

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An Exploration of English Teaching for Mechanical Engineering from the View of Meta-cognitive Strategy Based on Multimedia Network

INTERNATIONAL JOURNAL OF EMERGING TECHNOLOGIES IN LEARNING

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INTERNATIONAL JOURNAL OF EMERGING TECHNOLOGIES IN learning 2016年第2期11卷 43-47页

作者： Ma, Wenting Luoyang Inst Sci & Technol Sch Foreign Languages Luoyang 471023 Henan Peoples R China

The teaching model based on Multimedia network is proposed to improve the efficiency and effect of mechanical English learning, the advantages of computer-assisted learning is analyzed. By means of comparing the results of the experimental teaching model, conclusions are drawn that the experimental type (ET) can stimulate students' motivation much more than the control type (CP) can do. To elaborate the theoretical foundations of both task-based language teaching (TBLT) and computer assisted language learning (CALL) for mechanical engineering students, it shows the necessity and feasibility of TBLT based on Multimedia-Network for mechanical English. A teaching model for mechanical English is constructed which includes an experimental research in its application in teaching mechanical engineering students. The result of the experiment proves that the task-based teaching model based on multimedia network changes the students' passive attitude in traditional teaching process and makes them more active in the class. In this case students' interest and creativity are stimulated and their autonomous learning ability can be trained.

关键词： English teaching mechanical engineering Meta-cognitive strategy computer assisted language learning Multimedia network

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The Use of Concordancing Programs in ELT

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Procedia - Social and Behavioral Sciences 2014年 116卷 2312-2315页

作者： Fatih Yavuz Balikesir University Necatibey Education Faculty. Soma cad. Dinkçiler Mah10100 Balıkesir Turkey

Concordance programs have been used in literary and mostly religious text analysis for decades. They aim to count and define the frequency and function of a word or word groups in a given text. The aim is to give an inductive understanding of the word/structure and its use in authentic texts. Concordancers are now in computer software for the quick and reliable use for the *** many lexis come first advocators still exist in language teaching discipline, it is inevitable to use concordancing programs in English language Teaching. computers are used in language teaching very frequently but they do not take much place in the teaching of lexis with regard to concordancing *** study first details the use of concordancing programs in general and gives techniques that can be applied in ELT and illustrates some sample uses after describing the literature view of the use of concordance programs in ELT.

关键词： Use of Concordance,Corpora,Lexical approach, computer software in ELT computer assisted language learning

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Acoustic Model Fusion Method of British and American Compatible Mode

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INTERNATIONAL JOURNAL OF FUTURE GENERATION COMMUNICATION AND NETWORKING 2016年第12期9卷 65-73页

作者： He, Wei Zhongzhou Univ Coll English Zhengzhou 450000 Hebei Province Peoples R China

The British and American English are the most common target accents. British and American English have different phonetic symbol and pronunciation system. These two accents have many learners. And some learners have mixed phenomenon of British and American accent. Based on the mixed phenomenon British and American English accent for English learners, this paper put forwarder a model of American and British accent fusion method, improve the quality of the pronunciation evaluation performance system, and realize the embedded compressed acoustic model. This method divide acoustic model into alternative model, fusion model and encourage model by replace probability. The alternative model could be removed, and isolated model could be reserved. The fusion model could be merged based on model interpolation and model clip. Pronunciation quality evaluation results showed that the correlation of speaker level increased by 14.1%, compared with single accent model and in fusion model,;fusion model was similar to the performance of the hybrid model, the figure of gaussian component compressed by 10.7%.

关键词： computer assisted language learning Embedded application Pronunciation quality evaluation Model integration

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Phone-dependent Transformation of Posterior Probability Measure for Automatic Pronunciation Quality Evaluation

Phone-dependent Transformation of Posterior Probability Meas...

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IEEE Workshop on Electronics, computer and Applications

作者： Ke Yan New Generation of Information Technology Center Institute of Computer Application China Academy of Engineering Physics Mianyang China

ISBN: (纸本)9781479945641

Posterior probability measure is widely accepted as the most promising feature for automatic pronunciation quality evaluation. However, this measure is not phonetically consistent. This work presents a novel trainable phone-dependent transformation of posterior probability to deal with the problem. Both linear and non-linear transforms are investigated. Close form solution is found for linear transformation and gradient-based method is derived for nonlinear transformation. Experimental results on the database of 3685 people showed significant improvement. The cross-correlation between human and machine scores increases from 0.582 to 0.760.

关键词： component computer assisted language learning automatic pronunciation quality evaluation posterior probability

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An Empirical Research on Interactive Self-Access Listening Teaching Model in MCALL Environment

An Empirical Research on Interactive Self-Access Listening T...

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2009 2nd IEEE International Conference on computer Science and Information Technology(第二届计算机科学与信息技术国际会议 ICCSIT2009)

作者： Min Yang Zhuo Sun Yunxia Song Basic Courses Teaching Center Heping Campus Jilin University Changchun China 130062

The rapid development of computer assisted language learning (CALL) has exerted a highly significant influence on college English teaching and learning. This paper intends to explore a brand new listening teaching model-Interactive Self-Access Listening (ISL) teaching model in MCALL (Multimedia CALL) environment and test its effectiveness in practical teaching implementation. After the quantitative data-collection and analysis, a conclusion is reached that most of the students show positive attitudes towards ISL and this model is effective to a large degree in the process of listening.

关键词： computer assisted language learning Listening Teaching Interactive learning Self-Access learning Learner-Centeredness Cooperative learning

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Multiple parameter cluster analysis in a multiple language learning system

Multiple parameter cluster analysis in a multiple language l...

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International Conference on Information, Intelligence, Systems and Applications

作者： Christos Troussas Maria Virvou Efthimios Alepis Department of Informatics University of Piraeus

ISBN: (纸本)9781479907694

In this paper, we present our multiple parameter cluster analysis in our multiple language learning system. Towards this direction, we have used algorithmic approaches residing in the field of machine learning. Multiple parameter cluster analysis is conducted by the k-means clustering algorithm which takes as input seven important users' characteristics in order to initialize the process. The clustering is conducted by k-means clustering algorithm, which takes as input multiple user characteristics. The incorporation of k-means clustering is used to address several barriers posed by the heterogeneous learning audience of educational systems. After determining in which cluster each new student belongs, the system can reason about this specific student, adapting its behavior to the student's needs, performance and preferences.

关键词： Multiple parameter cluster analysis K-means clustering computer assisted language learning

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GAUSSIAN MIXTURE MODELING OF VOWEL DURATIONS FOR AUTOMATED ASSESSMENT OF NON-NATIVE SPEECH

GAUSSIAN MIXTURE MODELING OF VOWEL DURATIONS FOR AUTOMATED A...

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IEEE International Conference on Acoustics, Speech and Signal Processing

作者： Xie Sun Keelan Evanini Department of Computer Science University of Missouri Columbia MO 65211 USA Educational Testing Service Princeton NJ 08541 USA

ISBN: (纸本)9781457705380

This paper investigates using Gaussian Mixture Model (GMM) based vowel duration features for automated assessment of non-native speech. Two different types of models were compared: a single GMM trained on a reference corpus of native speech and separate GMMs for different proficiency levels trained on a large corpus of scored non-native speech. 13 vowel categories were evaluated separately (after normalization by rate of speech), and a multiple regression model was used to evaluate the performance of all vowel categories combined. Experiments on an English language proficiency assessment show that the non-native speech GMMs outperform the native speech GMMs, and that all 13 vowels have significant correlations with human scores when the non-native speech GMMs are used. The multiple regression combination obtained correlations with human scores of 0.71 when transcriptions were used to extract the vowel durations and 0.64 when the Automatic Speech Recognition (ASR) output was used. The experiments demonstrate that the vowel duration feature based on non-native speech GMMs is a useful predictor of L2 proficiency and is robust to different datasets and situations.

关键词： automated pronunciation assessment vowel duration computer assisted language learning Gaussian Mixture Model

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Usability Testing of VLASTWA: A Vocabulary and Strategy Teaching Web App 20

Usability Testing of VLASTWA: A Vocabulary and Strategy Teac...

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Proceedings of the 32nd Australian Conference on Human-computer Interaction

作者： Siamak Mirzaei Trent Lewis Mirella Wyra Brett Wilkinson College of Science and Engineering Flinders University Australia College of Education Psychology and Social Work Flinders University Australia

ISBN: (纸本)9781450389754

While vocabulary learning is one of the challenging tasks of language learning, it is considered indispensable for language mastery. Vocabulary learning presents similar challenges for professionals who need to master new terminology and definitions. The use of technology has been seen to effectively support learners in the vocabulary learning challenges. In this paper, the usability and learnability of a bespoke web app, VLASTWA, is assessed in terms of usability, effectiveness and pedagogical efficacy. VLASTWA was designed and implemented utilizing effective and extensively researched vocabulary learning technique, the keyword method. In this experimental study, participants (n=160, age = 18-60) learned to use the keyword method and employed it in new vocabulary learning (Persian-English) using VLASTWA. VLASTWA experimental web app performed well in a usability study using System Usability Scale with a rating of 91.5%. Results demonstrated the web app as a usable and efficient instrument in acquiring new vocabulary and future research will investigate the inherent use of the designed web app for different population, other languages and sets of words and emerging technologies such as augment reality and virtual reality and electroencephalogram.

关键词： Human computer interaction System usability scale computer assisted language learning The keyword method

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对大学生利用计算机辅助英语学习适应程度的研究

对大学生利用计算机辅助英语学习适应程度的研究

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作者：宋丽娟浙江大学

学位级别：硕士

computer assisted language learning (CALL) is defined as any process in which a learner uses learning materials by means of a computer to improve his or her language (Ken Beatty, 2003). In China, with the rapid development of computer technology, computer assisted language learning has attracted lots of people's attention and it will soon be widely used in college English learning and teaching program. The aim of this thesis is to investigate college students' level of adaptability to the computer assisted language learning environment. Three aspects will be studied in this thesis to get an overall picture of students' adaptability to CALL. The three aspects are autonomous learning ability in CALL environment, affective factors in CALL, computer experience and its effect on affective factors in *** quantitative and qualitative research methods are adopted in this thesis to get overall and detailed understanding of current college students' adaptability to *** of this study are as follows:Firstly, students' general autonomous learning ability is acceptable. However, their autonomous learning ability in CALL is not very satisfying. They still lack necessary ability of choosing learning materials via computer and their self-control ability in CALL is not ***, students generally take positive attitude toward CALL and feel relaxed and comfortable in computer assisted learning environment. However, they present low self-efficacy in computer assisted learning ***, most students have used computer for at least more than one year and their computer literacy are generally acceptable. However, there are still many students lack necessary computer literacy and it greatly decrease their confidence in learning via computer and it is a big obstacle in their way of *** pedagogical implications are achieved through this study. Firstly, hardware condition of CALL in university should be further improved to offer students more

关键词： computer assisted language learning learner autonomy anxiety self-efficacy computer experience

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