Demonstrate arc consistency, Computer Engineering

Assignment Help:

Demonstrate Arc consistency:

To demonstrate the worth of performing an arc-consistency check before starting a serarch for a solution, we'll use an example from Barbara Smith's tutorial. Suppose that we have four tasks to complete, A, B, C and D, and we're trying to schedule them. They are subject to the constraints that: 

-  Task A lasts 3 hours and precedes tasks B and C 

-  Task B lasts 2 hours and precedes task D 

-  Task C lasts 4 hours and precedes task D 

-  Task D lasts 2 hours 

We will model this problem with a variable for each of the task start times, namely startA, startB, startC and startD. We'll also have a variable for the overall start time: start, and a variable for the overall finishing time: finish. We will say that the domain for variable  start  is {0}, but the domains for all the other variables is {0,1,...,11}, because the summation of the duration of the tasks is 3 + 2 + 4 + 2 = 11. We can now translate our English specification of the constraints into our formal model.


Related Discussions:- Demonstrate arc consistency

Which dependencies of hierarchical tables in the sap system, The structure ...

The structure of Logical Databases reflects which dependencies of hierarchical tables in the SAP system. Foreign Key dependencies

Explain dead code elimination, Explain briefly Dead code Elimination of the...

Explain briefly Dead code Elimination of the commonly used code optimization techniques Dead code Elimination: Code which is unreachable or which does not influence the pr

Computer graphics, what isAdvantages of scan line algorithm, Computer Graph...

what isAdvantages of scan line algorithm, Computer Graphics?

Persuasive communication , 1)   Discuss various types of persuasive communi...

1)   Discuss various types of persuasive communication you might be needed to write or present in your professional and personal life. 2)    Describe two ways to organize a resume

How will these instructions perform?, Q. How will these instructions perfor...

Q. How will these instructions perform? Let's assume that above machine instructions are stored in three consecutive memory locations 1, 2 and 3 and PC contains a value (1) tha

Features of mpi-1, Features of MPI-1 Binding for FORTRAN and C ...

Features of MPI-1 Binding for FORTRAN and C Collective communication Communication domains and Process groups Point-to-point communication Virtual process

Explain fundamental models of inter process communication, Explain the two ...

Explain the two fundamental models of inter process communication. Two kinds of message passing system are given as: (a) Direct Communication : Along with direct communicat

Characteristics of a computer memory systems, Question: a) Describe wha...

Question: a) Describe what is meant by a "bus". There are two types of bus, dedicated and multiplexed. Give a brief description of both types of buses. b) Briefly explain f

What is a microform, What is a microform? This is the collective term f...

What is a microform? This is the collective term for all micro images kepted on a wide range of microfilm media, like roll film, fiche, aperture cards, strip or jackets.

Accessing a cache - computer architecture, Accessing a Cache:  Direct ...

Accessing a Cache:  Direct mapping: (Block address) modulo (Number of cache block in the cache) The valid bit indicate whether an entry contain a valid address.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd