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- Forward_chaining abstract "Forward chaining is one of the two main methods of reasoning when using an inference engine and can be described logically as repeated application of modus ponens. Forward chaining is a popular implementation strategy for expert systems, business and production rule systems. The opposite of forward chaining is backward chaining.Forward chaining starts with the available data and uses inference rules to extract more data (from an end user, for example) until a goal is reached. An inference engine using forward chaining searches the inference rules until it finds one where the antecedent (If clause) is known to be true. When such a rule is found, the engine can conclude, or infer, the consequent (Then clause), resulting in the addition of new information to its data.Inference engines will iterate through this process until a goal is reached.For example, suppose that the goal is to conclude the color of a pet named Fritz, given that he croaks and eats flies, and that the rule base contains the following four rules: If X croaks and X eats flies - Then X is a frog If X chirps and X sings - Then X is a canary If X is a frog - Then X is green If X is a canary - Then X is yellowLet us illustrate forward chaining by following the pattern of a computer as it evaluates the rules.Assume the following facts: Fritz croaks Fritz eats fliesWith forward reasoning, the inference engine can derive that Fritz is green in a series of steps:1. Since the base facts indicate that \"Fritz croaks\" and \"Fritz eats flies\", the antecedent of rule #1 is satisfied by substituting Fritz for X, and the inference engine concludes: Fritz is a frog2. The antecedent of rule #3 is then satisfied by substituting Fritz for X, and the inference engine concludes: Fritz is greenThe name \"forward chaining\" comes from the fact that the inference engine starts with the data and reasons its way to the answer,as opposed to backward chaining, which works the other way around.In the derivation, the rules are used in the opposite order as compared to backward chaining.In this example, rules #2 and #4 were not used in determining that Fritz is green.Because the data determines which rules are selected and used, this method is called data-driven, in contrast to goal-driven backward chaining inference. The forward chaining approach is often employed by expert systems, such as CLIPS.One of the advantages of forward-chaining over backward-chaining is that the reception of new data can trigger new inferences, which makes the engine better suited to dynamic situations in which conditions are likely to change.".
- Forward_chaining wikiPageExternalLink forward-vs-backward-chaining.
- Forward_chaining wikiPageID "568962".
- Forward_chaining wikiPageLength "4055".
- Forward_chaining wikiPageOutDegree "29".
- Forward_chaining wikiPageRevisionID "661541762".
- Forward_chaining wikiPageWikiLink Antecedent_(logic).
- Forward_chaining wikiPageWikiLink Backward_chaining.
- Forward_chaining wikiPageWikiLink Business_rules_engine.
- Forward_chaining wikiPageWikiLink CLIPS.
- Forward_chaining wikiPageWikiLink Category:Expert_systems.
- Forward_chaining wikiPageWikiLink Category:Logic.
- Forward_chaining wikiPageWikiLink Category:Logic_in_computer_science.
- Forward_chaining wikiPageWikiLink Consequent.
- Forward_chaining wikiPageWikiLink Data.
- Forward_chaining wikiPageWikiLink Data-driven.
- Forward_chaining wikiPageWikiLink Expert_system.
- Forward_chaining wikiPageWikiLink Goal.
- Forward_chaining wikiPageWikiLink Goal_orientation.
- Forward_chaining wikiPageWikiLink Inference_engine.
- Forward_chaining wikiPageWikiLink Information.
- Forward_chaining wikiPageWikiLink Iteration.
- Forward_chaining wikiPageWikiLink Logic.
- Forward_chaining wikiPageWikiLink Modus_ponens.
- Forward_chaining wikiPageWikiLink Opportunistic_reasoning.
- Forward_chaining wikiPageWikiLink Production_system_(computer_science).
- Forward_chaining wikiPageWikiLink Rete_algorithm.
- Forward_chaining wikiPageWikiLink Rule-based_system.
- Forward_chaining wikiPageWikiLinkText "Forward chaining".
- Forward_chaining wikiPageWikiLinkText "forward chaining".
- Forward_chaining wikiPageWikiLinkText "forward".
- Forward_chaining wikiPageWikiLinkText "forward-chaining".
- Forward_chaining wikiPageUsesTemplate Template:Reflist.
- Forward_chaining subject Category:Expert_systems.
- Forward_chaining subject Category:Logic.
- Forward_chaining subject Category:Logic_in_computer_science.
- Forward_chaining hypernym Methods.
- Forward_chaining type Software.
- Forward_chaining type Application.
- Forward_chaining comment "Forward chaining is one of the two main methods of reasoning when using an inference engine and can be described logically as repeated application of modus ponens. Forward chaining is a popular implementation strategy for expert systems, business and production rule systems. The opposite of forward chaining is backward chaining.Forward chaining starts with the available data and uses inference rules to extract more data (from an end user, for example) until a goal is reached.".
- Forward_chaining label "Forward chaining".
- Forward_chaining sameAs Q777433.
- Forward_chaining sameAs Vorwärtsverkettung.
- Forward_chaining sameAs زنجيرهسازی_جلوسو.
- Forward_chaining sameAs Chaînage_avant.
- Forward_chaining sameAs 前向き連鎖.
- Forward_chaining sameAs 전방_추론.
- Forward_chaining sameAs Wnioskowanie_w_przód.
- Forward_chaining sameAs m.02q_29.
- Forward_chaining sameAs Q777433.
- Forward_chaining wasDerivedFrom Forward_chaining?oldid=661541762.
- Forward_chaining isPrimaryTopicOf Forward_chaining.