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

What is null pointer, What is NULL POINTER Inside main, a FILE * called...

What is NULL POINTER Inside main, a FILE * called file. Afterwards, the fopen function, passing it the path to data file, as well as "r", only intending to read from the file.

Device drivers in windows system, Q. Device drivers in Windows system? ...

Q. Device drivers in Windows system? In Windows system device drivers are implemented as dynamic link libraries (DLLs). This scheme has advantages which DLLs comprises sharea

State the disadvantages of interviewing, State the Disadvantages of  inter...

State the Disadvantages of  interviewing -  can be expensive to carry out    -  can be a very time consuming exercise -  Unable to remain anonymous

Why is xml superior to other forms of data exchange, Why is XML superior to...

Why is XML superior to other forms of data exchange? The XML gives universal data format for integrated electronic business solutions. Other database systems and Relational dat

Face recognition using java, how we get a perfect tutorial for face recogn...

how we get a perfect tutorial for face recognition using java

State about the behavioral modeling, State about the Behavioral modeling ...

State about the Behavioral modeling Behavioral means how hardware behaves determine exact way it works we write using HDL syntax. For complex projects it's better mixed approac

Explain the disadvantages off-the-shelf, Explain the disadvantages Off-the...

Explain the disadvantages Off-the-shelf -  can be over-complex since it tries to cover as many characteristics as possible (for example most users of Word only utilise about

Describe program control instructions, Q. Describe Program Control Instruct...

Q. Describe Program Control Instructions? These instructions specify conditions for altering the sequence of program execution or we can say in other words that the content of

Develop system flow charts - nasa near earth object, Background Information...

Background Information The National Aeronautics and Space Administration (NASA) is the agency within the United States Government responsible for US space exploration. Within th

What is information technology, Information Technology is nothing but the s...

Information Technology is nothing but the study, design, development, execution, support and management of computer based information systems mainly the applications software & har

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