Common problem with hill climbing, Computer Engineering

Assignment Help:

Common problem with Hill climbing:

An alternative way of justifying the problem is that the states are boards with 8 queens already on them, so an action is a movement of one of the queens. In this type of case, our agent can use an evaluation function and do hill climbing. Which, it counts the number of pairs of queens where one can take the other, and only moves a queen if the movement reduces the number of pairs of that. When there is a choice of movements both resulting in the same decrease, the agent can be chosen one randomly from the choices. In this sequence the 8-queens problem, and there are only 56 * 8 = 448 possible ways to move one queen, so that's why our agent only has to calculate the evaluation function 448 times at each stage. If it single chooses moves to where the situation with respect to the evaluation function improves, so it is doing hill climbing or gradient descent if it's better to think of the agent going downhill rather than uphill.

A common problem with this search strategy is a local maxima: the search has not been yet reached at a solution, but it one of the way to go downhill in terms of the evaluation function. For example, we could get to the stage where only two queens can take each other, to moving any queen increases this number to at least three. In cases like this, the agent can do a random re-start whereby they randomly choose a state to start the whole process from again. This search strategy has the appeal of never requiring be store more than one state at any one time that is the part of the hill the agent is on. Russell and Norvig make the analogy that this kind of search is like trying to climb Mount Everest in the fog with amnesia, but they do concede that it is often the search strategy of choice for some industrial problems.


Related Discussions:- Common problem with hill climbing

Explain the term thread scheduling, Problem: a) Most RMI and RPC system...

Problem: a) Most RMI and RPC systems expect to be supported by the "Request-Reply Protocol". Describe what "Request-Reply Protocol" is. b) Describe the invocation semantics

What is the benefit of report wizard over an auto report, What is the benef...

What is the benefit of Report Wizard over an Auto Report? It takes a little more work to make a report with the report wizard than with the Auto Report but you have a lot more

How to turn on the session support in php, The session support can be turne...

The session support can be turned on automatically at the site level, or manually in every PHP page script: * Turning on session support automatically at the site level: Set s

First-order inference rules - artificial intelligence, First-Order Inferenc...

First-Order Inference Rules -artificial intelligence: Now we have a perfect definition of a first-order model is,in the same way, we may define soundness for first-order infere

What are the applications of edi in business, What are the applications of ...

What are the applications of EDI in business A.  Organistions that use EDI Extensive users of EDI contain: BHS- is a UK and European retailer dealing majorly in appare

Explain subscriber access to strowger systems, What are the basic approache...

What are the basic approaches to the design of subscriber access to Strowger systems? Describe them. A step by step switching system has three main parts as demonstrated in fig

Determine why a new system is required, Q. Determine why a new system is re...

Q. Determine why a new system is required? Feasibility Study: - Feasibility study is the method of defining the current problem determining why a new system is essential and

Search mechanisms in prolog, Search mechanisms in Prolog: Here we can ...

Search mechanisms in Prolog: Here we can needs this simple Prolog program to describe how Prolog searches as:president(X) :- first_name(X, georgedubya), second_name(X, bush).

Multi-threaded concurrency programming with threads, Your task is to implem...

Your task is to implement a memory manager that manages page reads and writes from multiple client threads. In the first programming task the memory manager keeps all the pages in

Define checkbox in html, Q. Define Checkbox in html? Checkboxes are use...

Q. Define Checkbox in html? Checkboxes are used when one or more out of the group of options is to be chosen. Building Check boxes is very similar to radio buttons. Figure expl

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