Weka is.
a flightless bird native
to New Zealand
Weka is.
free machine learning software (GNU GPL)
written in the Java programming language
provides a set of techniques
for learning pattern classifiers
We will use Weka for Homework 6.
1
Installing Weka

Real World Rule-Based Expert Systems
large + technical jargon: appear complex
uncertainty management
obtain attribute (not its value)
antecedents more complex
~
more efficiently implemented
Early Examples of Rule-Based Expert Systems
DENDRAL
chemical

Review of Assignment 2
State Space Representation:
- state representation
(n5, n2) given
- problem: initial state
goal state/test
- operators: if conditions then action effects
cost
Towers of Hanoi Problem
move(1,A,B):
if
disk 1 is on A
and no disks are o

Recurrent Neural Networks
Definition: networks containing cycles
- lateral connections
- backwards connections
I
H
O
Implication for network dynamics?
iterative activation updating
Recurrent Connections
Recurrent connectivity is
widespread throughout the

Naive Bayesian Classiers
effective method for expert systems
example of statistical pattern classication
pattern of
problem
features
class
two underlying concepts:
Bayes Theorem
conditional independence
Bayes Theorem
From the product rule we have:
P(

How Does the Brain Compute?
Part 2
Where weve been
perceptrons,
EBP, others
functions,
classification
self-organizing
maps
visualization,
clustering,
optimization
attractor nets,
oscillating nets
memory models,
optimization, robotics
others
supervised
le

Multi-Agent Systems
1. What is a multi-agent system?
2. What types exist?
3. What work has been done with
each type?
1. What is a Multi-Agent System?
Quiz!
To what does the term multi-agent system (MAS) refer?
a. internet agents
b. physical robots
c. Brit