Attractor Compositionality:
A Critique of Gardenfors’s Account of Conceptual Combination


David Byrd
University of California, Davis

In his book, Conceptual Spaces: The Geometry of Thought, Peter Gardenfors (2000) develops an account of prototype compositionality that he suggests can be implemented in a connectionist net by using the dynamical notion of an attractor.  If successful, this account would cure one of the most popular theories of concepts of its greatest illness, its failure to account for conceptual combination.  Further, Gardenfors’s account would give us the kind of implementational guidance that most theories of concepts lack.  Unfortunately, construing concepts in terms of the attractors of an underlying connectionist net faces a serious problem, what I call “the problem of entrapment.”  It is the purpose of this paper to illustrate this problem.