Member of the Editorial Boards of the journals Language Forum, Linguistic Analysis, Linguistics, Linguistic Research/Recherches Linguistiques, Nordic Journal of Linguistics, Journal of Linguistics 1982-88, Computational Linguistics 1984-86, Natural Language and Linguistic Theory 1984-90, Linguistics & Philosophy 1984-94, Language and Cognitive Processes 1985-93, Artificial Intelligence Review, 1986-1997.
Member of the Editorial Board of (i) The International Encyclopaedia of Linguistics (and Topic Editor for computational linguistics); (ii) the Reidel book series Natural Language and Linguistic Theory, since 1984; (iii) the Reidel book series Studies in Linguistics and Philosophy 1985-19??.
Guest editor with Walter Daelemans, special issues on inheritance in natural language processing, Computational Linguistics 18.2 & 18.3, 1992.
Guest editor, special issue on computational tools for doing linguistics, Linguistics 23.2, 1985.
Co-editor of the journal Pragmatics Microfiche (published by Oxford Microform Publications Ltd.) 1975-78.
Member of Programme Committee with responsibility for Computational Linguistics at the Sixth European Summer School in Logic, Language and Information (ESSLLI-94).
Referee and/or programme committee member for IJCAI-79, AISB-80, Attention and Performance IX, COLING-82, EACL-83, COLING-84, FGCS-84, IJCAI-87, COLING-88, ECAI-88, CI-88, FGCS-88, CI-88, EACL-89, IJCAI-89, ECAI-90, CI-90, EACL-91, FGCS-92, COLING-96, ECAI-96, and referee for the journals AISBQ, Cognitive Science, Journal of Philosophical Logic, Journal of Semantics, Language, Linguistic Inquiry, and Software Practice & Experience.
