Rabu, 06 Mei 2009

Functionality of using CALL

In this part areas are pointed out in which computational linguistics methods could be used in a CALL scenario.
This is one of the main aspects of applying CL-technology to CALL-systems: Functionality of programs should be improved with CL.
The hypothesis is that methods of computational linguistics can support the learning of a second and even first language by using "intelligent" computerprograms.


Two main views can be taken.
On the one hand one can start thinking about methods to enhance the computational aspects and on the other hand one can start thinking about the improved processing and presentation of content.
An aspect of the first type could be advanced error recognition (see chapter » Error-Analysis).
An aspect of the second could be precise modelling of the morphosyntax of future tense or the integration of WordNet-like structures.


Probably there isn't a sharp division but a spectrum between these two views.
Corpus linguistics is a case in question.
On the one hand corpus-tools allow the learner to use large language data-bases and on the other hand specific items like collocations may be taught using corpora, see e.g. Erpenbeck, Arno ; Koch, Britta et al., 2001

If one accepts the categorization made in the previous chapter, then the question is: "Which functionality can be improved or newly integrated based on each of the categories?"


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