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Harbusch, K., & Kempen, G. (2011). Automatic online writing support for L2 learners of German through output monitoring by a natural-language paraphrase generator. In M. Levy, F. Blin, C. Bradin Siskin, & O. Takeuchi (
Eds. ), WorldCALL: International perspectives on computer-assisted language learning (pp. 128-143). New York: Routledge.Abstract
Students who are learning to write in a foreign language, often want feedback on the grammatical quality of the sentences they produce. The usual NLP approach to this problem is based on parsing student-generated text. Here, we propose a generation-based ap- proach aiming at preventing errors ("scaffolding"). In our ICALL system, the student constructs sentences by composing syntactic trees out of lexically anchored "treelets" via a graphical drag & drop user interface. A natural-language generator computes all possible grammatically well-formed sentences entailed by the student-composed tree. It provides positive feedback if the student-composed tree belongs to the well-formed set, and negative feedback otherwise. If so requested by the student, it can substantiate the positive or negative feedback based on a comparison between the student-composed tree and its own trees (informative feedback on demand). In case of negative feedback, the system refuses to build the structure attempted by the student. Frequently occurring errors are handled in terms of "malrules." The system we describe is a prototype (implemented in JAVA and C++) which can be parameterized with respect to L1 and L2, the size of the lexicon, and the level of detail of the visually presented grammatical structures. -
Kempen, G., & Harbusch, K. (2003). A corpus study into word order variation in German subordinate clauses: Animacy affects linearization independently of function assignment. In Proceedings of AMLaP 2003 (pp. 153-154). Glasgow: Glasgow University.
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Kempen, G., & Harbusch, K. (2003). Dutch and German verb clusters in performance grammar. In P. A. Seuren, & G. Kempen (
Eds. ), Verb constructions in German and Dutch (pp. 185-221). Amsterdam: Benjamins. -
Kempen, G., & Harbusch, K. (2003). An artificial opposition between grammaticality and frequency: Comment on Bornkessel, Schlesewsky & Friederici (2002). Cognition, 90(2), 205-210 [Rectification on p. 215]. doi:10.1016/S0010-0277(03)00145-8.
Abstract
In a recent Cognition paper (Cognition 85 (2002) B21), Bornkessel, Schlesewsky, and Friederici report ERP data that they claim “show that online processing difficulties induced by word order variations in German cannot be attributed to the relative infrequency of the constructions in question, but rather appear to reflect the application of grammatical principles during parsing” (p. B21). In this commentary we demonstrate that the posited contrast between grammatical principles and construction (in)frequency as sources of parsing problems is artificial because it is based on factually incorrect assumptions about the grammar of German and on inaccurate corpus frequency data concerning the German constructions involved. -
Kempen, G. (2003). Language generation. In W. Frawley (
Ed. ), International encyclopedia of linguistics (pp. 362-364). New York: Oxford University Press. -
Kempen, G., & Harbusch, K. (2003). Word order scrambling as a consequence of incremental sentence production. In H. Härtl, & H. Tappe (
Eds. ), Mediating between concepts and grammar (pp. 141-164). Berlin: Mouton de Gruyter. -
Seuren, P. A. M., & Kempen, G. (
Eds. ). (2003). Verb constructions in German and Dutch. Amsterdam: Benjamins. -
Kempen, G. (1965). Leermachine en talenpracticum: Inleiding en literatuuroverzicht. Tijdschrift voor opvoedkunde, 11, 1-31.
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