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TopIntroduction
This paper describes FLAX, a corpus analysis tool that makes it easy for L2 students to seek language patterns. The system is up on the web for anyone to use online;1 and the source code is also available.2 Like existing concordance tools, it allows students to access, analyze and discover linguistic patterns in a particular corpus, which can be chosen to match the task at hand. However, it goes far beyond simply returning concordance lines.
FLAX supports three main functions:
- 1.
Checking vocabulary usage,
- 2.
Seeking grammatical patterns, and
- 3.
Looking up collocations.
First, it facilitates retrieval of typical usage of words or phrases by grouping concordance data and sorting search results to show the most common patterns first. Second, it incorporates grammar rules involving prepositions, word inflection, and articles, and makes common patterns stand out. Third, it retrieves collocations according to part-of-speech tags—for example, all adjectives associated with a particular noun—without using any special syntax.
FLAX is particularly appropriate for supporting academic writing. In this paper we illustrate its design using the British Academic Written English corpus, but it can be applied to any academic corpus—including samples of writing collected by an individual teacher, entire textbooks (provided they are available electronically), or essays written by students.
The design incorporates the pedagogical implications of many studies of academic corpora. All academic words in a corpus are made available for users to study their usage and collocations directly. Lexical bundles, a feature of academic prose that has recently been unearthed by linguists, are shown in their original context, because they can help L2 students construct academic text. The system is also able to group words by pattern, allowing users to study word usage by showing salient lexico-grammatical patterns that involve it.
FLAX shares the advantages of existing concordancers as popular tools for supporting L2 writing. Researchers report positive responses from students using concordance data for checking grammatical errors, seeking vocabulary usage, and retrieving collocations (Gaskell & Cobb, 2004, O’Sullivan & Chambers, 2006, Yoon, & Hirvela, 2004, Varley, 2009). However, some researchers suggest that concordance data be screened before being presented to students (Varley, 2009). Others ask for commonly used linguistic patterns to be made more accessible (Coxhead & Byrd, 2007), perhaps through a simple interface for retrieving collocations (Chen, 2011). FLAX addresses these criticisms to provide a more learner-friendly interface to the underlying concordance data derived from a given corpus.
This paper is structured as follows. The next section summarizes relevant background of concordancers and how they are used for supporting L2 writing, followed by a brief review of research on academic wordlists, collocations and lexical bundles for academic purposes. Then we describe the British Academic Written English corpus, which is used as an example throughout the paper. Following that we examine and illustrate the facilities provided for searching and browsing word usage, collocations and lexical bundles, and finally draw some conclusions.
TopThe Nature Of Concordancers
Concordancers are software services installed on a computer or accessed through a website that are designed to help users search, access and analyze language in a corpus; some provide a range of corpora that can be used. They are among the most frequently used tools to explore linguistic corpora, particularly when examining collocational use. They make it possible for students to obtain, organize, and study real-language data. The concordancer software mediates a corpus for the user.