Backward chaining - artificial intelligence, Computer Engineering

Assignment Help:

Backward Chaining - Artificial intelligence

Given that we are just interested in constructing the path, we may set our initial state to be the theorem statement and search backwards until we find an axiom (or set of axioms). If we limited ourselves to only using equivalences as rewrite rules, then this approach is OK, because we may use equivalences in both ways, and any path from the theorem to axioms which is found will provide evidence. However, if we use inference rules to traverse from theorem to axioms, then we will have shown (proved) that, if the theorem is true, then the axioms are true. But already we know that the axioms are true. To get around this, we might invert our inference rules and try to work backwards. That is, the operators in the search really answer the question: what could be true in order to infer the state (logical sentence) we are at right now?

If our agent begins searching from the theorem statement and reaches the axioms, it has proved the theorem.  It is also problematic, because there are several answers to the inversion question, and the search space gets very high.

 


Related Discussions:- Backward chaining - artificial intelligence

Define seek time and latency time, Define seek time and latency time. ...

Define seek time and latency time.  The time taken by the head to move to the appropriate cylinder or track is known as seek time. Once the head is at right track, it must wai

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

Explain sample instruction format of mips instruction, Q. Explain Sample In...

Q. Explain Sample Instruction Format of MIPS instruction? All MIPS instructions are of same size and are 32 bits long. MIPS designers chose to keep all instructions of same len

How many select lines will a 32:1 multiplexer will have, How many select li...

How many select lines will a 32:1 multiplexer will have ? Ans. 5 select lines will be required for 32 inputs, as 2 5 = 32.

What are the different sections of a report, What are the different section...

What are the different sections of a report? A report is categorized into many sections: The Report header: In this you place a control which must appear only at the startin

Qwerty - keyboard layout, Q. QWERTY - Keyboard Layout ? A keyboard layo...

Q. QWERTY - Keyboard Layout ? A keyboard layout is arrangement of keys across the keyboard. There is one keyboard layout which anybody who has worked on a standard keyboard or

Explain segmentation, Explain segmentation? Segment memory addressing ...

Explain segmentation? Segment memory addressing divides memory into many segments. Each of these segments can be considered as a linear memory space. Every one of these segmen

Determine about the verilog task, Determine about the Verilog Task - Ta...

Determine about the Verilog Task - Tasks are capable of enabling a function as well as enabling other versions of a Task. - Tasks also run with a zero simulation however the

An example subroutine call, Create your own Subprogram that does *not* use ...

Create your own Subprogram that does *not* use any input parameters. You decide the theme. You should give the pseudocode and an example Subroutine call. Be sure to give an overvie

Create perl scripts, Create Perl scripts as required below: a) Create a ...

Create Perl scripts as required below: a) Create a script named select_by_attribute.pl that accepts the name of a LibML documentand the name of a particular attribute from the c

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