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

Can link and association applied interchangeably, No, You cannot apply the ...

No, You cannot apply the link and Association interchangeably. Since link is used show the relationship among the two objects. But Association is used signify the relationship

Dram, DRAM consists of MOSFET's but the technique is to use the drain sourc...

DRAM consists of MOSFET's but the technique is to use the drain source capacitance to hold charge. If charge is present logic '1' is held, no charge logic '0'. As you know capacito

Identify the process of entering data into a ROM, The process of entering d...

The process of entering data into a ROM is called ? Ans. The process of entering data in ROM is termed as programming the ROM.

Explain the term confidentiality - firewall design policy, Explain the term...

Explain the term Confidentiality - Firewall Design Policy Whilst some corporate data is for public consumption, the vast majority of it should remain private.

Define the programmable logic devices (pld), Define the Programmable logic ...

Define the Programmable logic devices (PLD)? In the world of digital electronic systems there are three essential kinds of devices 1.memory, 2.microprocessors, and 3.logic. The

Example of perceptrons, Example of perceptrons: Here as an example fun...

Example of perceptrons: Here as an example function in which the AND boolean function outputs a 1 only but if both inputs are 1 and where the OR function only outputs a 1 then

Physical characteristics and access mode of disk drive, Q. Physical charact...

Q. Physical characteristics and access mode of disk drive? Access Time: Access time is time needed between requests made for a read or write operation until the time data are

Software engineering, What are coupling and cohesion and why are they impor...

What are coupling and cohesion and why are they important concepts in software design?

How can we convert infix expression to a postfix expression, One can change...

One can change an infix expression to a postfix expression using a By using Stack you can convert infix expression to a postfix expression

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