Showing papers by "Paul Morris published in 1997"

Individual Differences in Hand Movements During Deception

Abstract: This article addresses the influence of 2 personality traits on making hand movements during deception, namely public self-consciousness and ability to control behavior. It was hypothesized that especially individuals with high public self-consciousness and individuals who are skilled in controlling their behavior would make fewer hand movements during deception compared to truth-telling. A total of 56 participants were interviewed twice; in one interview they told the truth and in the other interview they lied. Before the interviews the participants completed a personality inventory to measure their levels of public self-consciousness and ability to control their behavior. The results supported the hypotheses. Some implications of these findings are discussed.

Compiling Knowledge-Based Systems to Ada: The PrkAda ProTalk Compiler

Abstract: This paper describes the implementation of the ProTalk compiler for PrkAda. An important component of the ProKappa system is its multi-paradigm, mixed-rule/imperative language, ProTalk. ProTalk combines elements of backtracking AI languages such as Prolog with imperative constructs such as conditionals, iteration, assignment, and subprogram invocation. Our implementation illustrates the use of generators to achieve a Prolog-like semantics, and the possibility (and difficulties) of employing such mechanisms in Ada.

Compiling Knowledge-Based Systems to Ada: The PrkAda Core

Abstract: This paper describes the implementation of PrkAda, a system for delivering, in Ada, Artificial In- telligence and object-oriented applications developed using the ProKappa system. (ProKappa is a modern, multi-paradigm knowledge-based-system development tool. It includes facilities for dy- namic object management, rule-based processing, daemons, and graphical developer and end-user interfaces. ProKappa is a successor system to KEE.) Creating PrkAda required creating a run-time, Ada-language, object-system "core," and developing a compiler to Ada from ProTalk (ProKappa's high-level, backtracking-based language). We describe PrkAda ProTalk compiler in a companion paper (5). This paper concentrates on the issues involved in implementing an AI application deliv- ery core, particularly with respect to Ada, including  Automatic storage management (garbage collection) without either the cooperation of the com- piler or access to the run-time stack,  Dynamic (weak) typing in a strongly-typed language,  Dynamic objects (objects that can change their slots and parentage as the program is executing)  Dynamic function binding in a language designed to preclude "self-modifying programs," and  Implementation trade-offs in object-oriented knowledge-based systems development environ- ments