Forward reasoning and Backward reasoning in Artificial Intelligence will give you an idea of what forward and backward reasoning are? Forward reasoning and Backward Reasoning in Artificial intelligence are two components. AI, the aim of the search is to seek out the trail through a drag space. Specifically, there are two ways to pursue such an inquiry that are forward and backward reasoning. Firstly, the main difference between both of them is that forward reasoning starts with the initial data towards the goal. Conversely, backward reasoning works in an opposite fashion where the aim is to figure out the initial facts and knowledge with the help of the given results. Specifically, you will know today about:
1.Forward Reasoning and Backward Reasoning in Artificial Intelligence: A Comparison
2.Definition of Forward Reasoning
3.Steps to follow within the forward reasoning :
4.Definition of Backward Reasoning
5.Steps to follow within the backward reasoning
6.Major differences between Forward reasoning and Backward Reasoning in Artificial Intelligence
Forward Reasoning and Backward Reasoning in Artificial Intelligence: A Comparison
A comparison of Forward reasoning and Backward Reasoning in Artificial Intelligence is as follows:
Forward reasoning Vs Backward Reasoning in Artificial Intelligence
| Metrics | Forward Reasoning | Backward Reasoning |
| Starts with | Data that is new | A conclusion that is uncertain |
| Main objective | Conclusion | Data/facts to support conclusion |
| Approach | Opportunistic | Conservative approach |
| Flow | Incipient to consequence | Consequence to incipient |
While we review Forward reasoning and Backward Reasoning in Artificial intelligence, Let`s check out the definition of forward reasoning in AI-first:
Definition of Forward Reasoning
The solution of a haul includes the initial data and facts so on reach the solution. These unknown facts and knowledge are employed to deduce the result. For instance, while diagnosing a patient the doctor first checks the symptoms and medical condition of the body like temperature, vital sign, pulse, eye color, blood, etcetera. Then, the Doctor analyses the patient’s symptoms and compares them against the predetermined symptoms. Then the doctor is in a position to supply the medicines consistent with the symptoms of the patient. So, when a solution employs this manner of reasoning, you call it as forward reasoning.
Steps to follow within the forward reasoning :
The inference engine explores the knowledge domain with the provided information for constraints whose precedence matches the given current state. Firstly, in the initiative, you give the system one or quite one constraint. Then you search the principles within the knowledge base for each constraint. Then, you select the principles that fulfill the condition (i.e., IF part). Now each rule is during a position to provide new conditions from the conclusion of the invoked one. As a result, the THEN part is again included within the prevailing one. So, one processes the added conditions again by repeating step 2. The method will end if there are no new conditions that exist.
Definition of Backward Reasoning
The backward reasoning is inverse of forward reasoning during which goal is analyzed so on deduce the principles, initial facts and data. Further, you can understand the concept by a similar example given within the above definition. For instance, where the doctor is trying to diagnose the patient with the help of the inceptive data like symptoms. However, in such a case, the patient is experiencing a drag in his body, on the idea of which the doctor goes to prove the symptoms. So, this type of reasoning comes under backward reasoning.
Steps to follow within the backward reasoning
In this sort of reasoning, the system chooses a goal state and also reasons within the backward direction. Specifically, let’s understand how it happens and what steps are followed.
- Firstly, the goal state and thus the principles are selected where the goal state resides within the “then” part because of the conclusion.
- From the IF a neighborhood of the chosen rule the sub-goals are made to be satisfied so that the goal state to be true.
- In order to satisfy all the sub-goals, ensure to set the initial conditions that are important.
- You have to check and ensure that the initial state tallies with established states also. If it fulfills the condition, then the goal is that the answer otherwise other goal state is chosen.
Now, Let’s see about major differences between Forward reasoning and Backward Reasoning in Artificial intelligence.
Major differences between Forward reasoning and Backward Reasoning in Artificial Intelligence
(i)The forward reasoning is a data-driven approach while backward reasoning could also be goal-driven.
(ii) The process starts with new data and facts within the forward reasoning. Conversely, backward reasoning begins with the results.
(iii) Forward reasoning aims to figure out the result followed by some sequences. On the other hand, backward reasoning emphasis the acts that support the conclusion.
(iv)Forward reasoning may produce various results owing to its opportunistic approach. Whereas, as against, in backward reasoning, a selected goal can only have certain predetermined initial data which makes it restricted.
(v) The flow of the forward reasoning is from the antecedent to consequent while backward reasoning works in reverse order during which it starts from conclusion to incipient.
Conclusion
The production system structure of the search process facilitates the interpretation of the forward and backward reasoning. In addition, you can differentiate the forward and backward reasoning on their purpose and process. Further, forward reasoning is directed by the initial data and it is intended to hunt out the goal while the backward reasoning is governed by goal instead of the data and aims to urge the essential facts and data.
NOw you know the difference between Forward reasoning and Backward Reasoning in Artificial intelligence.