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Practical Type Checking of Functions Defined on Context-Free Languages 被引量:1
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作者 Hai-MingChen Yun-MeiDong 《Journal of Computer Science & Technology》 SCIE EI CSCD 2004年第6期840-847,共8页
A type checking method for the functional language LFC is presented. A distinct feature of LFC is that it uses Context-Free (CF) languages as data types to represent compound data structures. This makes LFC a dynamica... A type checking method for the functional language LFC is presented. A distinct feature of LFC is that it uses Context-Free (CF) languages as data types to represent compound data structures. This makes LFC a dynamically typed language. To improve efficiency, a practical type checking method is presented, which consists of both static and dynamic type checking. Although the inclusion relation of CF languages is not decidable, a special subset of the relation is decidable, i.e., the sentential form relation, which can be statically checked. Moreover, most of the expressions in actual LFC programs appear to satisfy this relation according to the statistic data of experiments. So, despite that the static type checking is not complete, it undertakes most of the type checking task. Consequently the run-time efficiency is effectively improved. Another feature of the type checking is that it converts the expressions with implicit structures to structured representation. Structure reconstruction technique is presented. 展开更多
关键词 type checking context-free language ALGORITHM
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Pattern Matching Compilation of Functions Definedin Context-Free Languages
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作者 陈海明 董韫美 《Journal of Computer Science & Technology》 SCIE EI CSCD 2001年第2期159-167,共9页
LFC is a functional language based on recursive functions defined in context-free languages. In this paper, a new pattern matching algorithm for LFC is presented, which can represent a sequence of patterns as an integ... LFC is a functional language based on recursive functions defined in context-free languages. In this paper, a new pattern matching algorithm for LFC is presented, which can represent a sequence of patterns as an integer by an encoding method. It is a rather simple method and produces efficient case-expressions for pattern matching definitions of LFC. The algorithm can also be used for other functional languages, but for nested patterns it may become complicated and further studies are needed. 展开更多
关键词 pattern matching ALGORITHM recursive function context-free language functional language
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A Review of Machine Translation Techniques for Low-Resource Languages
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作者 PENG Cheng-xi MA Zi-han 《Journal of Literature and Art Studies》 2025年第9期725-731,共7页
Machine translation of low-resource languages(LRLs)has long been hindered by limited corpora and linguistic complexity.This review summarizes key developments,from traditional methods to recent progress with large lan... Machine translation of low-resource languages(LRLs)has long been hindered by limited corpora and linguistic complexity.This review summarizes key developments,from traditional methods to recent progress with large language models(LLMs),while highlighting ongoing challenges such as data bottlenecks,biases,fairness,and computational costs.Finally,it discusses future directions,including efficient parameter fine-tuning,multimodal translation,and community-driven corpus construction,providing insights for advancing LRL translation research. 展开更多
关键词 low-resource languages(LRLs) machine translation large language models(LLMs)
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Roles of Customs,Cultures,and Languages in Informed Consent
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作者 Alfred P.Minei 《Psychology Research》 2025年第3期133-148,共16页
The work in this paper is based on primary research on how to obtain informed consent to medical treatment and or procedure among patients;this study was carried out in Papua New Guinea in both urban and rural health ... The work in this paper is based on primary research on how to obtain informed consent to medical treatment and or procedure among patients;this study was carried out in Papua New Guinea in both urban and rural health settings across customs,cultures,and languages in two provinces,on the basis of qualitative interviews with healthcare professionals including doctors,nurses,other healthcare workers,patients,and traditional healers.We emphasize the views of consent with participants of customs,cultural,and languages regarding informed consent.There are factors between peoples of differing circumstances which can greatly alter how they view consent.Some groups would involve people in the decision-making process that may not traditionally be involved in the decision making of a medical decision.Other groups may dislike certain medical procedures as in Papua New Guinea(PNG).And certain people have different views on what should be disclosed of the patient’s condition.Customs,cultures,and languages are common phenomena which continue to affect the daily lives of many thousands of people.It is unclear in PNG about the characteristics of customs,culture,and language on health care because there is no published information on informed consent and issues that affect the making of informed consent. 展开更多
关键词 CUSTOMS CULTURE languagE informed consent
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NewBee: Context-Free Grammar (CFG) of a New Programming Language for Novice Programmers
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作者 Muhammad Aasim Qureshi Muhammad Asif Saira Anwar 《Intelligent Automation & Soft Computing》 SCIE 2023年第7期439-453,共15页
Learning programming and using programming languages are the essential aspects of computer science education.Students use programming languages to write their programs.These computer programs(students or practitioners... Learning programming and using programming languages are the essential aspects of computer science education.Students use programming languages to write their programs.These computer programs(students or practitioners written)make computers artificially intelligent and perform the tasks needed by the users.Without these programs,the computer may be visioned as a pointless machine.As the premise of writing programs is situated with specific programming languages,enormous efforts have been made to develop and create programming languages.However,each program-ming language is domain-specific and has its nuances,syntax and seman-tics,with specific pros and cons.These language-specific details,including syntax and semantics,are significant hurdles for novice programmers.Also,the instructors of introductory programming courses find these language specificities as the biggest hurdle in students learning,where more focus is on syntax than logic development and actual implementation of the program.Considering the conceptual difficulty of programming languages and novice students’struggles with the language syntax,this paper describes the design and development of a Context-Free Grammar(CFG)of a programming language for the novice,newcomers and students who do not have computer science as their major.Due to its syntax proximity to daily conversations,this paper hypothesizes that this language will be easy to use and understand by novice programmers.This paper systematically designed the language by identifying themes from various existing programming languages(e.g.,C,Python).Additionally,this paper surveyed computer science experts from industry and academia,where experts self-reported their satisfaction with the newly designed language.The results indicate that 93%of the experts reported satisfaction with the NewBee for novice,newcomer and non-Computer Sci-ence(CS)major students. 展开更多
关键词 Programming language formal language computer language language grammar simple syntax programming language novice programmer
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Research on the Training Model of“Foreign Languages+Area Studies”Interdisciplinary Talent Development:A Case Study of China’s Talent Training for International Ocean Affairs
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作者 GUO Rui 《Sino-US English Teaching》 2025年第1期22-27,共6页
This paper proposes an interdisciplinary talent training model that combines foreign language education with area studies.The model aims to cultivate international ocean affairs professionals with cross-cultural commu... This paper proposes an interdisciplinary talent training model that combines foreign language education with area studies.The model aims to cultivate international ocean affairs professionals with cross-cultural communication skills,in-depth regional and country knowledge,and practical expertise in ocean affairs.Additionally,the paper presents specific training pathways and policy recommendations for implementing this model. 展开更多
关键词 foreign languages area studies talent development for international ocean affairs educational reform
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Agri-Eval:Multi-level Large Language Model Valuation Benchmark for Agriculture
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作者 WANG Yaojun GE Mingliang +2 位作者 XU Guowei ZHANG Qiyu BIE Yuhui 《农业机械学报》 北大核心 2026年第1期290-299,共10页
Model evaluation using benchmark datasets is an important method to measure the capability of large language models(LLMs)in specific domains,and it is mainly used to assess the knowledge and reasoning abilities of LLM... Model evaluation using benchmark datasets is an important method to measure the capability of large language models(LLMs)in specific domains,and it is mainly used to assess the knowledge and reasoning abilities of LLMs.Therefore,in order to better assess the capability of LLMs in the agricultural domain,Agri-Eval was proposed as a benchmark for assessing the knowledge and reasoning ability of LLMs in agriculture.The assessment dataset used in Agri-Eval covered seven major disciplines in the agricultural domain:crop science,horticulture,plant protection,animal husbandry,forest science,aquaculture science,and grass science,and contained a total of 2283 questions.Among domestic general-purpose LLMs,DeepSeek R1 performed best with an accuracy rate of 75.49%.In the realm of international general-purpose LLMs,Gemini 2.0 pro exp 0205 standed out as the top performer,achieving an accuracy rate of 74.28%.As an LLMs in agriculture vertical,Shennong V2.0 outperformed all the LLMs in China,and the answer accuracy rate of agricultural knowledge exceeded that of all the existing general-purpose LLMs.The launch of Agri-Eval helped the LLM developers to comprehensively evaluate the model's capability in the field of agriculture through a variety of tasks and tests to promote the development of the LLMs in the field of agriculture. 展开更多
关键词 large language models assessment systems agricultural knowledge agricultural datasets
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LinguTimeX a Framework for Multilingual CTC Detection Using Explainable AI and Natural Language Processing
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作者 Omar Darwish Shorouq Al-Eidi +4 位作者 Abdallah Al-Shorman Majdi Maabreh Anas Alsobeh Plamen Zahariev Yahya Tashtoush 《Computers, Materials & Continua》 2026年第1期2231-2251,共21页
Covert timing channels(CTC)exploit network resources to establish hidden communication pathways,posing signi cant risks to data security and policy compliance.erefore,detecting such hidden and dangerous threats remain... Covert timing channels(CTC)exploit network resources to establish hidden communication pathways,posing signi cant risks to data security and policy compliance.erefore,detecting such hidden and dangerous threats remains one of the security challenges. is paper proposes LinguTimeX,a new framework that combines natural language processing with arti cial intelligence,along with explainable Arti cial Intelligence(AI)not only to detect CTC but also to provide insights into the decision process.LinguTimeX performs multidimensional feature extraction by fusing linguistic attributes with temporal network patterns to identify covert channels precisely.LinguTimeX demonstrates strong e ectiveness in detecting CTC across multiple languages;namely English,Arabic,and Chinese.Speci cally,the LSTM and RNN models achieved F1 scores of 90%on the English dataset,89%on the Arabic dataset,and 88%on the Chinese dataset,showcasing their superior performance and ability to generalize across multiple languages. is highlights their robustness in detecting CTCs within security systems,regardless of the language or cultural context of the data.In contrast,the DeepForest model produced F1-scores ranging from 86%to 87%across the same datasets,further con rming its e ectiveness in CTC detection.Although other algorithms also showed reasonable accuracy,the LSTM and RNN models consistently outperformed them in multilingual settings,suggesting that deep learning models might be better suited for this particular problem. 展开更多
关键词 Arabic language Chinese language covert timing channel CYBERSECURITY deep learning English language language processing machine learning
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When Large Language Models and Machine Learning Meet Multi-Criteria Decision Making: Fully Integrated Approach for Social Media Moderation
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作者 Noreen Fuentes Janeth Ugang +4 位作者 Narcisan Galamiton Suzette Bacus Samantha Shane Evangelista Fatima Maturan Lanndon Ocampo 《Computers, Materials & Continua》 2026年第1期2137-2162,共26页
This study demonstrates a novel integration of large language models,machine learning,and multicriteria decision-making to investigate self-moderation in small online communities,a topic under-explored compared to use... This study demonstrates a novel integration of large language models,machine learning,and multicriteria decision-making to investigate self-moderation in small online communities,a topic under-explored compared to user behavior and platform-driven moderation on social media.The proposed methodological framework(1)utilizes large language models for social media post analysis and categorization,(2)employs k-means clustering for content characterization,and(3)incorporates the TODIM(Tomada de Decisão Interativa Multicritério)method to determine moderation strategies based on expert judgments.In general,the fully integrated framework leverages the strengths of these intelligent systems in a more systematic evaluation of large-scale decision problems.When applied in social media moderation,this approach promotes nuanced and context-sensitive self-moderation by taking into account factors such as cultural background and geographic location.The application of this framework is demonstrated within Facebook groups.Eight distinct content clusters encompassing safety,harassment,diversity,and misinformation are identified.Analysis revealed a preference for content removal across all clusters,suggesting a cautious approach towards potentially harmful content.However,the framework also highlights the use of other moderation actions,like account suspension,depending on the content category.These findings contribute to the growing body of research on self-moderation and offer valuable insights for creating safer and more inclusive online spaces within smaller communities. 展开更多
关键词 Self-moderation user-generated content k-means clustering TODIM large language models
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Context-attributed graph grammar framework for specifying visual languages
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作者 邹阳 曾晓勤 +1 位作者 韩秀清 张康 《Journal of Southeast University(English Edition)》 EI CAS 2008年第4期455-461,共7页
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
关键词 visual language graph grammar context-attributed PARSING CONFLUENCE
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Word order and thinking mode of English and Chinese languages 被引量:1
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作者 张武萍 《Sino-US English Teaching》 2007年第11期79-81,共3页
This article aims to analyze the difference of word order between English and Chinese languages after making a constructive study of them and concludes that it is the reflection of different thinking characteristics o... This article aims to analyze the difference of word order between English and Chinese languages after making a constructive study of them and concludes that it is the reflection of different thinking characteristics of the two nationalities. The difference of history development, cultural tradition, social economy and geographic environment naturally produces the thinking mode with the national features. The different features certainly influence the language expression. It is because language is not only the main carrier of thinking but also the important expression form. So to well study the features of thinking mode is of great importance to translation, foreign language teaching and cross-cultural communication. 展开更多
关键词 English and Chinese languages word order thinking mode
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Perspectives on the Values of Rose in Eastern and Western Languages and Cultures
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作者 高丹丹 《Sino-US English Teaching》 2007年第3期73-76,共4页
The cultural differences between the east and the west are reflected in their own languages. Vocabulary is the basic building material of a language. It is the basic linguistic unit of cultural connotation and message... The cultural differences between the east and the west are reflected in their own languages. Vocabulary is the basic building material of a language. It is the basic linguistic unit of cultural connotation and message. Through the analysis of the word "rose", this paper attempts to find the different connotations in Chinese and western cultures. It also tentatively explores the significance of introducing cultural background in foreign language teaching. 展开更多
关键词 language culture ROSE cultural connotation
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On the vocabulary acquisition theories and vocabulary teaching of foreign languages
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作者 李庆新 《Sino-US English Teaching》 2009年第1期1-4,共4页
As one of the important phases of language acquisition process, vocabulary acquisition has great impact on one's language competence and communication competence. However, there are still some problems in students' ... As one of the important phases of language acquisition process, vocabulary acquisition has great impact on one's language competence and communication competence. However, there are still some problems in students' vocabulary acquisition. This paper first discusses the current problems in vocabulary teaching, and then analyzes some laws in vocabulary acquisition, and at last it discusses the advantages of making use of Internet in vocabulary teaching, which aims to find a possible solution to the problems. 展开更多
关键词 tabular acquisition vocabulary teaching Internet environment language competence
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语言的演化历程窥探——对“How New Languages Emerge”评介
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作者 巫宏梅 《湖北函授大学学报》 2013年第6期129-131,共3页
一、引言现代许多语言学家仍然关注着语言的产生与演进,甚至将语言的演化与达尔文生物进化论类比,以求从中得到语言进化的启示。语言进化国际研讨会(International Conferenceon the Evolution of Language,EVOLANG)便是一个从人类语... 一、引言现代许多语言学家仍然关注着语言的产生与演进,甚至将语言的演化与达尔文生物进化论类比,以求从中得到语言进化的启示。语言进化国际研讨会(International Conferenceon the Evolution of Language,EVOLANG)便是一个从人类语言进化相关学科的研究成果出发,以探究人类语言起源及其如何进化而来为宗旨的学术性研讨会。足可见语言学家们无时无刻不在探索语言的奥秘及语言产生的缘起。 展开更多
关键词 语言学家 演化历程 HOW languagE 生物进化论 评介 语言进化 国际研讨会
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COMPLEXITY OF EVOLUTION LANGUAGES OF THE ELEMENTARY CELLULAR AUTOMATON OF RULE 146 被引量:1
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作者 Wang Yi Morita Kenichi 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2006年第4期418-428,共11页
Symbolic dynamics of cellular automata is introduced by coarse-graining the temporal evolution orbits. Evolution languages are defined. By using the theory of formal languages and automata, the complexity of evolution... Symbolic dynamics of cellular automata is introduced by coarse-graining the temporal evolution orbits. Evolution languages are defined. By using the theory of formal languages and automata, the complexity of evolution languages of the elementary cellular automaton of rule 146 is studied and it is proved that its width 1-evolution language is regular, but for every n ≥ 2 its width n-evolution language is not context-free but context-sensitive. Also, the same results hold for the equivalent (under conjugation) elementary cellular automaton of rule 182. 展开更多
关键词 COMPLEXITY cellular automaton evolution language formal language.
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The Effects of Language Policy on Minority Languages
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作者 王敏 刘景霞 《海外英语》 2011年第2X期279-280,共2页
Many countries have language policies with the purpose of promoting or discouraging the use of a particular language or a set of languages. In a multilingual country, the official language(s) is always favored by the ... Many countries have language policies with the purpose of promoting or discouraging the use of a particular language or a set of languages. In a multilingual country, the official language(s) is always favored by the national language policy; in contrast, the minority languages, to some extent, are hindered in their development. This paper, by the case studies of minority languages in New Zealand, Netherlands, and China, illustrates the effects of these countries' general language policies on their minority languages. Minority languages are seen as a part of cultural identity of minority groups. To protect their own culture and identity, they devote themselves to seek the equal right for their languages and cultures. In making language policies, the authorities should give respect and regard to the minority languages. 展开更多
关键词 language POLICY MINORITY languages CULTURE CULTURAL IDENTITY
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Climate change and preservation of minority languages in the upper regions of Ghana:A systematic review 被引量:1
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作者 Michael Addaney Stella Afi Makafui Yegblemenawo +1 位作者 Jonas Ayaribilla Akudugu Mavis Antiri Kodua 《Chinese Journal of Population,Resources and Environment》 2022年第2期177-189,共13页
A well-recognized fact is that addressing the impacts of climate change on vulnerable communities and minority groups remains a central focus toward achieving the Sustainable Development Goals,specifically Goals 11 an... A well-recognized fact is that addressing the impacts of climate change on vulnerable communities and minority groups remains a central focus toward achieving the Sustainable Development Goals,specifically Goals 11 and 13.Approaches for effective adaptation to climate change through national and local efforts fundamentally aim to create environmentally sustainable,socially inclusive,and economically vibrant communities.This paper associates the impacts of climate change to the preservation of threatened minority languages in semi-arid areas in Northern Ghana.This review relies on primary and secondary sources on climate-induced migration,minority languages,and threats of language loss through a keyword search followed by rigorous content analysis.The study confirms that forced displacement due to harsh climatic and other environmental conditions is currently occurring in the upper regions(Upper East and Upper West Regions)of Ghana with minority linguistic groups being forced to migrate to the southern part of the country,where their culture and language are threatened due to large linguistic groups.The literature well establishes the north-south mobility with various debates on its root causes.However,the phenomenon is understudied along with the lack of specific national strategies for addressing it and the associated language loss.Therefore,the need emerges for further studies to enhance the current understanding of the phenomenon to inform policy interventions and protect minority languages threatened by climate-induced migration.The focus on an understudied subject and geographic scope makes the findings extremely relevant for the expansion of knowledge on internal migration in the context of climate change in Northern Ghana. 展开更多
关键词 Climate changecondition Climate migration Minority languages Semi-arid Ghana Threatened languages
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Languages in Contrast近十年发文分析 被引量:1
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作者 田苗 《外语与外语教学》 CSSCI 北大核心 2020年第1期31-41,147,共12页
作为对比语言学领域最为权威的国际期刊之一,《语言对比》(Languages in Contrast)已走过20年的历程。本研究从其近10年(2009-2018)所发表的10卷中收集信息,构建小型研究语料库,并使用语料库工具提取相关信息。定量分析结果显示了对比... 作为对比语言学领域最为权威的国际期刊之一,《语言对比》(Languages in Contrast)已走过20年的历程。本研究从其近10年(2009-2018)所发表的10卷中收集信息,构建小型研究语料库,并使用语料库工具提取相关信息。定量分析结果显示了对比语言学的研究对象、目标、重点、方法和变化。同时,通过对近10年来具有代表性成果的分析,展望今后对比语言学可能的发展方向。研究表明,《语言对比》所发论文与学科发展和特点密切相关,体现了对比语言学的最新变化,对对比语言学研究的发展贡献巨大。 展开更多
关键词 对比语言学 《语言对比》 发文分析 语言与民族思维方式
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Natural Languages Processing for Building Computer- based Learning Tools
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作者 张颖 李娜 《海外英语》 2015年第18期232-234,共3页
This paper outlines a framework to use computer and natural language techniques for various levels of learners to learn foreign languages in Computer-based Learning environment.We propose some ideas for using the comp... This paper outlines a framework to use computer and natural language techniques for various levels of learners to learn foreign languages in Computer-based Learning environment.We propose some ideas for using the computer as a practical tool for learning foreign language where the most of courseware is generated automatically.We then describe how to build Computer-based Learning tools,discuss its effectiveness,and conclude with some possibilities using on-line resources. 展开更多
关键词 NATURAL languagE COMPUTER BASED learning tools
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A simple approach for building transliteration editors for Indian languages 被引量:1
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作者 PRAHALLAD Lavanya PRAHALLAD Kishore GANAPATHIRAJU Madhavi 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2005年第11期1354-1361,共8页
Transliteration editors are essential for keying-in Indian language scripts into the computer using QWERTY keyboard. Applications of transliteration editors in the context of Universal Digital Library (UDL) include en... Transliteration editors are essential for keying-in Indian language scripts into the computer using QWERTY keyboard. Applications of transliteration editors in the context of Universal Digital Library (UDL) include entry of meta-data and diction- aries for Indian languages. In this paper we propose a simple approach for building transliteration editors for Indian languages using Unicode and by taking advantage of its rendering engine. We demonstrate the usefulness of the Unicode based approach to build transliteration editors for Indian languages, and report its advantages needing little maintenance and few entries in the mapping table, and ease of adding new features such as adding letters, to the transliteration scheme. We demonstrate the trans- literation editor for 9 Indian languages and also explain how this approach can be adapted for Arabic scripts. 展开更多
关键词 Transliteration editor Indian languages Universal Digital Library (UDL)
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