Assignment Reading Model-based Diagnosis-Lecture notes Propositional Logic AIMA Chapter 6 Problem set Model-based Diagnosis implementation Propositional Logic 16.413: Hello World implementation Due Monday, November 17th

How do we maneuver ImagestakenfromNasa'Swebsitehttp://www.nasa.gov/ Roadmaps are an effective state space abstraction Brian Williams, Spring 0 Courtesy of U.S. Geological survey

Histol · Kautz and selman.1992 Inspired by improvements in satisfiabity algorithms Big Idea Encode planning problem as a(very large) logical formula Initial-state all-possible-actions goal Find a satisfying assignment to action-time propositions, and we have a plan

Achieving Arc Consistency via Constraint Propagation Arc consistency eliminates values of each variable domain that can never satisfy a particular constraint (an arc Directed arc (Vi, v) is arc consistent if VXED, 3yED, such that(x, y) is allowed by constraint C

Solving CsPs Solving CSPs involves some combination of 1. Constraint propagation eliminates values that cant be part of any solution 2. Search explores valid assignments Arc Consistency Arc consistency eliminates values of each variable domain that

autonomous gents Self-commanding Self-diagnosing IoHc-IO Self-repairing RECOVERY Commanded at Mission level Engineering level Monitors

Out line Propositional Satisfiability Propositional Clauses Backtrack search Unit Propagation DPLL: Unit Propagation Backtrack Search Characteristics of dPLl local search using GSAT Propositional Clauses

SlideGraph-based Plannings based on material from: Prof Dan Weld (Univ Washington)and Brian c。 Willams Prof. Maria Fox(Durham, UK) October 8th. 2003 16。410-13 autonomous Agents eIf-diagnosing Self-repairing RECOVERY Commanded at Mission level Engineering level Cor

September 24, 2003 Scheme Tutor notes In scheme tutor stick to r5rs scheme The Tutor uses SCM, not miT scheme Strategy: click\Check\button on initial code, in order to view test cases pt.24,2003 16410/16413 Even more scheme

Sum list, iterative version 入 Now construct an iterative version (define(sum D) (let loop(( D)(answer o) (if (null? D) answer (loop (cdr D)(+ answer(car sept.17,2003