In this paper we discuss a heuristically control led approach to combining reasoning w i th cases and reasoning w i th rules. Our task is interpretat ion of under-defined terms that occur in legal statutes (like the Internal Revenue Code) where certain terms must be applied to part icular cases even though their meanings are not defined by the statute and the statutory rules are unclear as to s...

T h e r e i s q u i t e o f t e n a need t o s u p p r e s s much o f t h e r e p r e s e n t a t i o n o r s i m u l a t i o n d e t a i l p r e s e n t i n t h e s y s t e m s f u l l m o d e l o f a g i v e n mechan i sm. T h e r e w o u l d be a need f o r s u p p r e s s s i o n o f d e t a i l , f o r e x a m p l e , i f we. w i s h e d t o p r o v i d e a v e r y h i g h l e v e l o v e ...

A d d i t i v e AND/OR graphs are de f ined as AND/ /ORgraphs w i t hou t c i r c u i t s , which can be cons idered as fo lded AND/OR t r e e s ; i . e . the cost of a common subproblem is added to the cost as many t imes as the subproblem occurs , but i t is computed on ly once. A d d i t i v e AND/OR graphs are n a t u r a l l y obta ined by r e i n t e r p r e t i n g the dy namic programmi...

Photographs of objects are ubiquitous in the work and presentation of museums, whether in collection-management infrastructure or in Web-based communication. This article examines the use of images in these settings and traces how they function as interfaces and tools in the production of museum knowledge. Because images are not only the main material presented but also become multilayered obje...

Two experiments are reported that employed think-aloud methods to test predictions concerning relevance effects and rationalization processes derivable from Evans’ (1996) heuristic-analytic theory of the selection task. Evans’ account proposes that card selections are triggered by relevance-determining heuristics, with analytic processing serving merely to rationalize heuristically-cued decisio...