Since the specifications of most of the existing context-sensitive graph grammars tend to be either too intricate or not intuitive, a novel context-sensitive graph grammar formalism, called context-attributed graph gr...Since the specifications of most of the existing context-sensitive graph grammars tend to be either too intricate or not intuitive, a novel context-sensitive graph grammar formalism, called context-attributed graph grammar（CAGG）, is proposed. In order to resolve the embedding problem, context information of a graph production in the CAGG is represented in the form of context attributes of the nodes involved. Moreover, several properties of a set of confluent CAGG productions are characterized, and then an algorithm based on them is developed to decide whether or not a set of productions is confluent, which provides the foundation for the design of efficient parsing algorithms. It can also be shown through the comparison of CAGG with several typical context-sensitive graph grammars that CAGG is more succinct and, at the same time, more intuitive than the others, making it more suitably and effortlessly applicable to the specification of visual languages.展开更多
This paper proposes a new way to improve the performance of dependency parser: subdividing verbs according to their grammatical functions and integrating the information of verb subclasses into lexicalized parsing mod...This paper proposes a new way to improve the performance of dependency parser: subdividing verbs according to their grammatical functions and integrating the information of verb subclasses into lexicalized parsing model. Firstly,the scheme of verb subdivision is described. Secondly,a maximum entropy model is presented to distinguish verb subclasses. Finally,a statistical parser is developed to evaluate the verb subdivision. Experimental results indicate that the use of verb subclasses has a good influence on parsing performance.展开更多
In order to provide English as a foreign language students with effective English language learning approaches, this investigation is focused on how students deal with words when they are doing reading material. It is...In order to provide English as a foreign language students with effective English language learning approaches, this investigation is focused on how students deal with words when they are doing reading material. It is found that most students can use some skills to guess the unknown words in reading materials, such as explanatory analysis skills, syntactic analysis skills, and structural analysis skills, while they have overlooked how these words are organized metaphorically and metonymically. This investigation will provide students with the target language knowledge metaphors and metonymy, examining the impact on computer vocabulary guessing and reading comprehension through teaching the concept of metaphor and metonymy. In this research, the new word-guessing skill based on the knowledge of metaphor and metonymy was applied to word-guessing teaching in reading comprehension of computer material. The research question is studied in this experiment： Can the training of using ways of word-guessing base on the knowledge of metonymy and metaphor promote students＇ ability of word guessing in reading comprehension of computer material？ The results show that students have gradually paid attention to the word-guessing skill in reading process. The skills based on the knowledge of metaphor and metonymy have helped students get the right meaning of the unknown words in computer reading materials. It has really enlarged students＇ vocabulary and improved their confidence in finishing reading.展开更多
While there are several research studies that planned to discover what drives students＇ motivation to learn English as a foreign/second language, to our knowledge there have been no pragmatic studies in the field of ...While there are several research studies that planned to discover what drives students＇ motivation to learn English as a foreign/second language, to our knowledge there have been no pragmatic studies in the field of EFL that examined Sudanese college-level students learning motivation. This study, therefore, intends to investigate Sudanese college-level students＇ motivation and its correlation to student＇s achievement. With strong emphasis on motivation, this study is, also examining the relationship between students＇ motivation and achievement when learning English as foreign language. The participants in this study were college-level students in Sudan. The data was collected from 60 college level students. This quantitative study employed both Pearson Correlation methods of analysis as well as ANOVA Regression analysis. The results of this study revealed that there is strong correlation between students＇ motivation and students＇ achievement.展开更多
The problem of fault information process in telephone networks manage ment system in AT & T in the US has been solved with stepanwise learning approach.This method makes the information decrease step by step by me...The problem of fault information process in telephone networks manage ment system in AT & T in the US has been solved with stepanwise learning approach.This method makes the information decrease step by step by means of merge and sort, classifies the information to several typical classes and establishes the knowledge base (KB) eventually. If new fault information is inputted, we will call the knowl edge in KB and predict the related faults which will happen.展开更多
Difficulty discrimination is an important step in autonomous design and interpreting teaching materials development, which is related to scientifi c nature of the materials, teaching effectiveness, and sequential teac...Difficulty discrimination is an important step in autonomous design and interpreting teaching materials development, which is related to scientifi c nature of the materials, teaching effectiveness, and sequential teaching progress. In this paper, we focus on the diffi culty discrimination of interpretation teaching materials on the basis of analytic hierarchy process and natural language processing. We analyze several factors which affect interpretation teaching materials, and we introduce theories of analytic hierarchy process and natural language processing which is intuitive and credible operation basis.展开更多
This study reports the development, piloting and initial validation of a test measuring language analytic ability - one foreign language aptitude component for Chinese learners of foreign languages （FL）. A test with...This study reports the development, piloting and initial validation of a test measuring language analytic ability - one foreign language aptitude component for Chinese learners of foreign languages （FL）. A test with 50 items was constructed and administered to 53 third-year English majors. Rasch analyses showed that the subtest of inductive language learning ability was too easy. After removing misfitting items, the reduced grammatical sensitivity subtest showed satisfactory psychometric properties. The Rasch measures of the students＇ grammatical sensitivity were also found to be correlated significantly with their TEM-4 scores and their English reading grades, thus providing further evidence for the validity of the this subtest.展开更多
基金The National Natural Science Foundation of China(No.60571048,60673186,60736015)the National High Technology Researchand Development Program of China(863Program)(No.2007AA01Z178)
文摘Since the specifications of most of the existing context-sensitive graph grammars tend to be either too intricate or not intuitive, a novel context-sensitive graph grammar formalism, called context-attributed graph grammar（CAGG）, is proposed. In order to resolve the embedding problem, context information of a graph production in the CAGG is represented in the form of context attributes of the nodes involved. Moreover, several properties of a set of confluent CAGG productions are characterized, and then an algorithm based on them is developed to decide whether or not a set of productions is confluent, which provides the foundation for the design of efficient parsing algorithms. It can also be shown through the comparison of CAGG with several typical context-sensitive graph grammars that CAGG is more succinct and, at the same time, more intuitive than the others, making it more suitably and effortlessly applicable to the specification of visual languages.
基金the National Natural Science Foundation of China (No.60435020, 60575042 and 60503072).
文摘This paper proposes a new way to improve the performance of dependency parser: subdividing verbs according to their grammatical functions and integrating the information of verb subclasses into lexicalized parsing model. Firstly,the scheme of verb subdivision is described. Secondly,a maximum entropy model is presented to distinguish verb subclasses. Finally,a statistical parser is developed to evaluate the verb subdivision. Experimental results indicate that the use of verb subclasses has a good influence on parsing performance.
文摘In order to provide English as a foreign language students with effective English language learning approaches, this investigation is focused on how students deal with words when they are doing reading material. It is found that most students can use some skills to guess the unknown words in reading materials, such as explanatory analysis skills, syntactic analysis skills, and structural analysis skills, while they have overlooked how these words are organized metaphorically and metonymically. This investigation will provide students with the target language knowledge metaphors and metonymy, examining the impact on computer vocabulary guessing and reading comprehension through teaching the concept of metaphor and metonymy. In this research, the new word-guessing skill based on the knowledge of metaphor and metonymy was applied to word-guessing teaching in reading comprehension of computer material. The research question is studied in this experiment： Can the training of using ways of word-guessing base on the knowledge of metonymy and metaphor promote students＇ ability of word guessing in reading comprehension of computer material？ The results show that students have gradually paid attention to the word-guessing skill in reading process. The skills based on the knowledge of metaphor and metonymy have helped students get the right meaning of the unknown words in computer reading materials. It has really enlarged students＇ vocabulary and improved their confidence in finishing reading.
文摘While there are several research studies that planned to discover what drives students＇ motivation to learn English as a foreign/second language, to our knowledge there have been no pragmatic studies in the field of EFL that examined Sudanese college-level students learning motivation. This study, therefore, intends to investigate Sudanese college-level students＇ motivation and its correlation to student＇s achievement. With strong emphasis on motivation, this study is, also examining the relationship between students＇ motivation and achievement when learning English as foreign language. The participants in this study were college-level students in Sudan. The data was collected from 60 college level students. This quantitative study employed both Pearson Correlation methods of analysis as well as ANOVA Regression analysis. The results of this study revealed that there is strong correlation between students＇ motivation and students＇ achievement.
文摘The problem of fault information process in telephone networks manage ment system in AT & T in the US has been solved with stepanwise learning approach.This method makes the information decrease step by step by means of merge and sort, classifies the information to several typical classes and establishes the knowledge base (KB) eventually. If new fault information is inputted, we will call the knowl edge in KB and predict the related faults which will happen.
文摘Difficulty discrimination is an important step in autonomous design and interpreting teaching materials development, which is related to scientifi c nature of the materials, teaching effectiveness, and sequential teaching progress. In this paper, we focus on the diffi culty discrimination of interpretation teaching materials on the basis of analytic hierarchy process and natural language processing. We analyze several factors which affect interpretation teaching materials, and we introduce theories of analytic hierarchy process and natural language processing which is intuitive and credible operation basis.
基金supported by the Fundamental Research Funds for the Central Universities(105563GK)
文摘This study reports the development, piloting and initial validation of a test measuring language analytic ability - one foreign language aptitude component for Chinese learners of foreign languages （FL）. A test with 50 items was constructed and administered to 53 third-year English majors. Rasch analyses showed that the subtest of inductive language learning ability was too easy. After removing misfitting items, the reduced grammatical sensitivity subtest showed satisfactory psychometric properties. The Rasch measures of the students＇ grammatical sensitivity were also found to be correlated significantly with their TEM-4 scores and their English reading grades, thus providing further evidence for the validity of the this subtest.
