Corpus Database
A Corpus Database is a stable digital document dataset in the role of being used to answer a research question.
- AKA: Document Set, Document Corpus.
- Context:
- It can (typically) contain Corpus Words, Corpus Sentences, … (from the corpus documents).
- It can be used in a Corpus-based Task.
- It can be a member of a Corpora.
- It can range from (typically) being a Real-World Corpus to being a Synthetic Corpus, to being an Augmented Corpus.
- It can range from being an Unannotated Corpus to being an Annotated Corpus, depending on the presence of annotated documents.
- It can range from being a Domain-Specific Corpus (such as a news corpora) to being an Open Corpus (such as the Web).
- It can range from being a Sequential Corpus to being a Non-Sequential Corpus.
- It can range from being a Large Corpus (such as a very large corpus) to being a Small Corpus, depending on a corpus size.
- It can be created by a Corpus Creation Task and management by a Corpus Management Task.
- …
- Example(s):
- any Text Corpus (composed of solely text items).
- an Unannotated Corpus, such as a World Wide Web snapshot.
- an Annotated Corpus, such as the Semcor Corpora.
- a Legal Document Corpus.
- an NLP Corpus (for NLP systems).
- 20 Newsgroups Dataset.
- ACL Anthology Reference Corpus.
- …
- Counter-Example(s):
- The Library of Congress.
- a Knowledge Base.
- a Document Set, such as a Random Sample from a Corpus.
- all Scientific Literature.
- See: Corpus-based Application, Corpus Linguistics, Knowledge Resource.
References
2011
- (Wikipedia, 2011) ⇒ http://en.wikipedia.org/wiki/Text_corpus
- QUOTE: In linguistics, a corpus (plural corpora) or text corpus is a large and structured set of texts (now usually electronically stored and processed). They are used to do statistical analysis and hypothesis testing, checking occurrences or validating linguistic rules on a specific universe.
A corpus may contain texts in a single language (monolingual corpus) or text data in multiple languages (multilingual corpus). Multilingual corpora that have been specially formatted for side-by-side comparison are called aligned parallel corpora.
In order to make the corpora more useful for doing linguistic research, they are often subjected to a process known as annotation. An example of annotating a corpus is part-of-speech tagging, or POS-tagging, in which information about each word's part of speech (verb, noun, adjective, etc.) is added to the corpus in the form of tags. Another example is indicating the lemma (base) form of each word. When the language of the corpus is not a working language of the researchers who use it, interlinear glossing is used to make the annotation bilingual.
Some corpora have further structured levels of analysis applied. In particular, a number of smaller corpora may be fully parsed. Such corpora are usually called Treebanks or Parsed Corpora. The difficulty of ensuring that the entire corpus is completely and consistently annotated means that these corpora are usually smaller, containing around 1 to 3 million words. Other levels of linguistic structured analysis are possible, including annotations for morphology, semantics and pragmatics.
Corpora are the main knowledge base in corpus linguistics. The analysis and processing of various types of corpora are also the subject of much work in computational linguistics, speech recognition and machine translation, where they are often used to create hidden Markov models for part of speech tagging and other purposes. Corpora and frequency lists derived from them are useful for language teaching.
- QUOTE: In linguistics, a corpus (plural corpora) or text corpus is a large and structured set of texts (now usually electronically stored and processed). They are used to do statistical analysis and hypothesis testing, checking occurrences or validating linguistic rules on a specific universe.
2009
- (WordNet, 2009) ⇒ http://wordnetweb.princeton.edu/perl/webwn?s=corpus
- S: (n) principal, corpus, principal sum (capital as contrasted with the income derived from it)
- S: (n) corpus (a collection of writings) "he edited the Hemingway corpus"
- …
- http://en.wiktionary.org/wiki/corpus#Noun
- a collection of writings, often on a specific topic, of a specific genre, from a specific demographic, a single author etc. …