This paper discusses Mandarin vowel pronunciation quality assessment. The phonetic pronunciation quality is traditionally evaluated under the speech recognition framework by the phonetic posterior probability score, w...
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ISBN:
(纸本)9783540748175
This paper discusses Mandarin vowel pronunciation quality assessment. The phonetic pronunciation quality is traditionally evaluated under the speech recognition framework by the phonetic posterior probability score, which may be computed by normalizing the frame-based posterior probability or be calculated on the phone segment directly. By the first method, we can achieve a human-machine scoring correlation coefficient (CC) of 0.832 for vowel;and by the second, the CC can be up to 0.847. This paper proposes a novel kind of formant feature and applies the feature to the evaluation of vowel: we transform the formant plots on the time-frequency plane to a bitmap and extract its Gabor feature for pattern classification;when use the classification probability for pronunciation assessment, we can get a CC of 0.842. Finally we combine the three scores with various linear or nonlinear methods;the best CC of 0.913 is gotten by using neural network.
This paper proposes a PDA-based languagelearning system for Japanese polite expressions. To support the foreigners learning Japanese polite expressions, we had implemented a PDA-based system, called Japanese polite e...
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ISBN:
(纸本)9781586037970
This paper proposes a PDA-based languagelearning system for Japanese polite expressions. To support the foreigners learning Japanese polite expressions, we had implemented a PDA-based system, called Japanese polite expressions learning assisting system (JAPELAS) [11]. JAPELAS is a one-to-one system, and it works without any input of the context information. Based on the JAPELAS, now we propose architecture of new one-to-many system called JAPELAS2, where the learner can interact with many persons in the same situation. Learners call use JAPELAS2 to review the history records that they have learned.
This paper gives an overview of the scientific program "Computational linguistic models and language technologies for Croatian" that has been launched recently. Its short and long term goals, its composition...
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ISBN:
(纸本)9789537138097
This paper gives an overview of the scientific program "Computational linguistic models and language technologies for Croatian" that has been launched recently. Its short and long term goals, its composition as well as methodology and expected results are presented.
In an effort to better understand the mental processing connected to different kinds of CALL activities, this study collected data on time subjects spent, as well as buttons subjects clicked while doing 10 different C...
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In an effort to better understand the mental processing connected to different kinds of CALL activities, this study collected data on time subjects spent, as well as buttons subjects clicked while doing 10 different CALL activities accompanying a beginning French text book. In addition, a group of subjects thought out loud as they completed the same activities. These subjects were recorded on video, their thinking out loud was transcribed and the transcriptions were coded according to how they indicated they were dealing with the language input. The frequencies of coded categories were compared to see if there were connections between certain activity types and the kind of mental processing that should lead to language acquisition. It found that activities which required language production at least at the sentence level had higher occurrences of the kind of processing that one expects to lead to acquisition. The study also found that activities which required the learners to click as a response were connected to what could be considered shallower processing, or processing that is less likely to lead to language acquisition. It found similar results concerning True/False activities. In investigating the connection between behavior and mental processing in the CALL setting, the study found that button-use does seem to be connected to more effective processing, but that time spent on an activity is something that is perhaps too ambiguous to draw conclusions from.
作者：
Levy, MikeGriffith Univ
Sch Language & Linguist Nathan Campus170 Kessels Rd Brisbane Qld 4111 Australia
Almost continuous innovation in the area of new technologies and applications in second language teaching and learning can make research especially challenging. In longer-term projects, for example, the researcher may...
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Almost continuous innovation in the area of new technologies and applications in second language teaching and learning can make research especially challenging. In longer-term projects, for example, the researcher may find that by the end of the project the technology that has been central to it has been surpassed or outmoded. While some precautionary steps can be taken, such as focusing on underlying principles, the technology in use still remains critical. This is why the drive for deeper principles and theoretical insights in CALL research becomes so important. However, it is also a matter of the kind of research being attempted, for example whether it is preliminary and exploratory, aiming to evaluate a very new technology or application, or whether it is more refined and focussed, incorporating the use of a technology or application that is relatively stable and well established. This paper focuses on the impact of technological innovation in CALL research, while accepting that pedagogical innovation and curriculum innovation are also contributing factors. The paper describes exemplary projects and strategies for research planning where the aim is to sustain longer-term research agendas alongside shorter-term research goals which, while still reflecting broader principles, are still responsive to rapid innovation and development.
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 develo...
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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 computerassistedlearning environment. However, they present low self-efficacy in computerassistedlearning ***, 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
This paper describes a computer-assistedlanguagelearning (CALL) in a ubiquitous computing environment. The environment, called TANGO (Tag Added learnNinG Objects) system, detects the objects around the learner using...
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ISBN:
(纸本)0387240462
This paper describes a computer-assistedlanguagelearning (CALL) in a ubiquitous computing environment. The environment, called TANGO (Tag Added learnNinG Objects) system, detects the objects around the learner using RFID (Radio Frequency Identification) tags, and provides the learner the right information for languagelearning. This system supports learning in daily life with PDA (personal digital assistant) beyond web based education with desktop computers. In the experiment, the learner played the game of TANGO, and was very interested in this system.
We describe a "Multi-lingual Adaptive language Tutor" (MALT) that uses natural language parsing and text generation to create various kinds of grammar exercises for learners of any language. These exercises ...
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ISBN:
(纸本)9781586035303
We describe a "Multi-lingual Adaptive language Tutor" (MALT) that uses natural language parsing and text generation to create various kinds of grammar exercises for learners of any language. These exercises can be restricted to specific topics by the instructor such as transformation of verb tenses. MALT generates novel exercises focusing on the specific difficulties of language learners as determined from their past mistakes, helping them overcome individual difficulties faster. We also present the first preliminary results from employing MALT in the foreign language classroom at Notre Dame.
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