ABTWEAK Home Page

AbTweak is a complete hierarchical, non-linear planner that extends David Chapman's (MIT 1986) "Tweak" planner as described by Yang (Waterloo) and Tenenberg (Rochester) in 1989. This implementation by Steven Woods (1991 Masters Thesis) includes a complete search strategy suited to abstraction hierarchies known as LEFT-WEDGE (Woods 1991). This planner and related work predates that of SNLP.

AbTweak Distribution

• README containing a brief outline of AbTweak related materials in this archive.
• Zipped AbTweak Implementation (Lisp) (orig 1991, version 1993). PLEASE let me know if you grab a copy of the planner so that I can maintain a list of people who may be using it. I will be letting these people know of future releases or related papers that may become available. I'd be interested in hearing about any derivative results, papers, comments, etc. that you may have. A directory listing of the planner is also available.

AbTweak publications

Qiang Yang, Josh Tenenberg, and Steven Woods, On the Implementation and Evaluation of AbTweak. Computational Intelligence Journal, Vol. 12, 1996.

Steven Woods, An implementation and evaluation of a hierarchical non-linear planner. Masters Thesis, University of Waterloo, available as Technical Report CS-91-17, Department of Computer Science, May 1991.

Qiang Yang, Josh Tenenberg and Steven Woods. Abstraction in nonlinear planning (version 2). Original was Technical Report CS-91-65, University of Waterloo, Department of Computer Science, June 1994.

Qiang Yang, Josh Tenenberg and Steven Woods. Abstraction in nonlinear planning. Technical Report CS-91-65, University of Waterloo, Department of Computer Science, May 1992.

AbTweak related unpublished documents

• Qiang Yang and Steven Woods. AbTweak Users Manual (1993) as included in source code release.
• Qiang Yang and Steven Woods. AbTweak Preliminary Results Report (1991).
• Steven Woods. An overview (1990) of David Chapman's TWEAK.
• Steven Woods. An introduction (1990) to plan recognition.

AbTweak authors

• Qiang Yang.
• Josh Tenenberg.
• Steven Woods.

Other Related Planning Pages

• Steve Woods' Ph.D work on Software Reverse Engineering.
• AI FAQ: Agents -- Planning
• Constraints FAQ
• Artificial Intelligence FAQ set