语料库语言学：语料库的种类types-of-corpora.ppt

Types of corporaGeneral vs.specialized corporaWritten vs.spoken corporaSynchronic vs.diachronic corporaMonolingual vs.multilingual corporaComparable vs.parallel corporaNative vs.learner corporaSample vs.monitor corporaRaw vs.annotated corporaGeneral vs.specialized corporaGeneral corpora(通用语料库通用语料库)or reference corpora(参考语料库参考语料库):a wide coverage of different text categories or registers;represents language for general purposes.usu.:very large,millions of words.E.g.British National Corpus(BNC),Bank of English(BOE).specialized corpora(专用语料库专用语料库):texts from a particular variety of a language,e.g.from a particular dialect or from a particular subject area.Written vs.spoken corporaWritten corpora（笔语语料库）（笔语语料库）:contain only written materials.(more)Spoken corpora（口语语料库）（口语语料库）:contain transcribed texts of spoken language.(less)Synchronic vs.diachronic corporaSynchronic corpora（共时语料库）（共时语料库）:materials from a specific period of time.Diachronic corpora（历时语料库）：（历时语料库）：materials over a longer period of time.Monolingual vs.multilingual corporaMonolingual corpora（单语语料库）：（单语语料库）：texts in one language.Multilingual corpora（多语语料库）：（多语语料库）：texts in several different languages.Comparable vs.parallel corporaComparable corpora（可比语料库）：（可比语料库）：texts from two or more languages which are similar in genre,topic,register etc.without,however,containing the same content.Parallel corpora（平行语料库）（平行语料库）(translation corpora)（翻译语料库）：（翻译语料库）：a corpus of original texts in one language and their translations into another(or several other languages)。探索“同一内容是如何用两种语言表达的”。Native vs.learner corporaNative speakers corpora（本族语语料库）（本族语语料库）:texts from native speakers.Learner corpora（学习者语料库）（学习者语料库）:texts from language learners.Sample vs.monitor corporaSample corpora(样本语料库样本语料库)：as opposed to a monitor corpus,a sample corpus is of finite size and consists of text segments selected to provide a static picture of languageMonitor corpora(监控语料库监控语料库)：monitor language change.It is regularly updated and open-ended.Raw vs.annotated corporaRaw corpora（生语料库）（生语料库）：in raw states of plain text;without annotationsAnnotated corpora（标注语料库）（标注语料库）：some external information is added to a corpus.e.g.information identifying the origin and nature of the text;tagging to show the word class of each word;parsing to show the sentence structure and the function of different elements in a sentence.one specific example,“gives”:third person singular present tense verbIn an annotated corpus,the form gives may be gives_VVZ,VVZ:it is a third person singular present tense(Z)form of a lexical verb(VV).Such annotation makes it quicker and easier to retrieve and analyze information about the language contained in the corpus.