1. Fahiem Bacchus University of Toronto
What have we Learned
Fahiem Bacchus
University of Toronto
URL for the location of these slides.

2. Many Commonalities
The different communities are addressing many similar problems.
Given a transition system I
Searching for a state satisfying a particular property
Verification, planning II
Checking all states
Ensuring that all states satisfy a particular property.
Doing a computation that potentially requires examining all states.
Verification,
MDPs
Planning with optimization?
11/18/2018
Fahiem Bacchus

3. Many Commonalities
The different communities are addressing many similar problems.
Given a transition system I
Searching for a path satisfying a particular property
Verification, planning II
Checking all path
Ensuring that all states satisfy a particular property.
Doing a computation that potentially requires examining all states.
Verification,
MDPs
Planning with optimization?
11/18/2018
Fahiem Bacchus

4. Differences Verification Planning MDPs
Typical types of state information
Boolean
Relations
Numeric
Techniques
BDDs, SAT, Propositional
Lifted reasoning, some conversion to the propositional
Dynamic programming,
Linear programming,
Approximations
“Complexity”
High combinatorial complexity,
Smaller sized spaces
Low combinatorial complexity, large state spaces
Low combinatorial complexity, smaller sized spaces, but added complexity of optimization
11/18/2018
Fahiem Bacchus

5. Differences
Many of these differences are a result of the “dominant” problems in the field.
As a result there are many useful techniques specific to each area.
In the future most of these fields would like to expand their scope, this will eliminate many of these differences.
11/18/2018
Fahiem Bacchus

6. Differences
MDPs there is a desire to deal with relational representations.
Relations become useful in verification when dealing, e.g., with software.
Planning would like to deal with numeric resources and optimization.
11/18/2018
Fahiem Bacchus

7. Potential for Cross fertilization
As a result there will be a growing need to understand, adapt, and apply techniques from other areas in your own area.
E.g.,
Using CSPs to do verification of RTL specifications (Drechsler)
Using planning techniques in test generation (Damm)
11/18/2018
Fahiem Bacchus

8. Hurdles to overcome Collaboration Accessibility
Some useful collaborations will hopefully arise from the workshop.
Trying to address benchmark problems with different techniques.
Accessibility
It can be difficult to access the literature in other fields
The domain details are not necessarily abstracted from the search problems.
To bridge this gap is a challenge.
11/18/2018
Fahiem Bacchus