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- Hierarchical_task_network abstract "In artificial intelligence, the hierarchical task network, or HTN, is an approach to automated planning in which the dependency among actions can be given in the form of networks.Planning problems are specified in the hierarchical task network approach byproviding a set of tasks, which can be: primitive tasks, which roughly correspond to the actions of STRIPS; compound tasks, which can be seen as composed of a set of simpler tasks; goal tasks, which roughly corresponds to the goals of STRIPS, but are more general.A primitive task is an action that can be executed. A compound task is a complex task composed of a sequence of actions. A goal task is a task of satisfying a condition. The difference between primitive and other tasks is that the primitive actions can be directly executed. Compound and goal tasks both require a sequence of primitive actions to be performed; however, goal tasks are specified in terms of conditions that have to be made true, while compound tasks can only be specified in terms of other tasks via the task network outlined below.Constraints among tasks are expressed in form of networks, called task networks. A task network is a set of tasks and constraints among them. Such a network can be used as the precondition for another compound or goal task to be feasible. This way, one can express that a given task is feasible only if a set of other actions (those mentioned in the network) are done, and they are done in such a way that the constraints among them (specified by the network) are satisfied. One particular formalism for representing hierarchical task networks that has been fairly widely used is TAEMS.A task network can for example specify that a condition is necessary for a primitive action to be executed. When this network is used as the precondition for a compound or goal task, it means that the compound or goal task requires the primitive action to be executed and that the condition must be true for its execution to successfully achieve the compound or goal task.The best-known domain-independent HTN-planning software is: Nonlin, one of the first HTN planning systems. SIPE-2 O-Plan UMCP, the first provably sound and complete HTN planning systems. SHOP2, a HTN-planner developed at University of Maryland, College Park. HTNPlan-P, preference-based HTN planning.HTN planning is strictly more expressive than STRIPS, to the point of being undecidable in the general case. However, many syntactic restrictions of HTN planning are decidable, with known complexities ranging from NP-complete to 2-EXPSPACE-complete, and some HTN problems can be efficiently compiled into PDDL, a STRIPS-like language.".
- Hierarchical_task_network wikiPageID "3023129".
- Hierarchical_task_network wikiPageLength "4931".
- Hierarchical_task_network wikiPageOutDegree "15".
- Hierarchical_task_network wikiPageRevisionID "682148584".
- Hierarchical_task_network wikiPageWikiLink 2-EXPSPACE.
- Hierarchical_task_network wikiPageWikiLink Artificial_intelligence.
- Hierarchical_task_network wikiPageWikiLink Automated_planning.
- Hierarchical_task_network wikiPageWikiLink Automated_planning_and_scheduling.
- Hierarchical_task_network wikiPageWikiLink Category:Automated_planning_and_scheduling.
- Hierarchical_task_network wikiPageWikiLink Category:Behavior_model.
- Hierarchical_task_network wikiPageWikiLink Hierarchical_control_system.
- Hierarchical_task_network wikiPageWikiLink NP-complete.
- Hierarchical_task_network wikiPageWikiLink NP-completeness.
- Hierarchical_task_network wikiPageWikiLink PDDL.
- Hierarchical_task_network wikiPageWikiLink Planning_Domain_Definition_Language.
- Hierarchical_task_network wikiPageWikiLink Preference-based_planning.
- Hierarchical_task_network wikiPageWikiLink STRIPS.
- Hierarchical_task_network wikiPageWikiLink Task_analysis_environment_modeling_simulation.
- Hierarchical_task_network wikiPageWikiLink University_of_Maryland,_College_Park.
- Hierarchical_task_network wikiPageWikiLinkText "HTN planning".
- Hierarchical_task_network wikiPageWikiLinkText "Hierarchical task network".
- Hierarchical_task_network wikiPageWikiLinkText "hierarchical task network".
- Hierarchical_task_network hasPhotoCollection Hierarchical_task_network.
- Hierarchical_task_network wikiPageUsesTemplate Template:Reflist.
- Hierarchical_task_network subject Category:Automated_planning_and_scheduling.
- Hierarchical_task_network subject Category:Behavior_model.
- Hierarchical_task_network hypernym Approach.
- Hierarchical_task_network type ProgrammingLanguage.
- Hierarchical_task_network comment "In artificial intelligence, the hierarchical task network, or HTN, is an approach to automated planning in which the dependency among actions can be given in the form of networks.Planning problems are specified in the hierarchical task network approach byproviding a set of tasks, which can be: primitive tasks, which roughly correspond to the actions of STRIPS; compound tasks, which can be seen as composed of a set of simpler tasks; goal tasks, which roughly corresponds to the goals of STRIPS, but are more general.A primitive task is an action that can be executed. ".
- Hierarchical_task_network label "Hierarchical task network".
- Hierarchical_task_network sameAs Red_jerárquica_de_tareas.
- Hierarchical_task_network sameAs m.08l5wk.
- Hierarchical_task_network sameAs Q5753136.
- Hierarchical_task_network sameAs Q5753136.
- Hierarchical_task_network wasDerivedFrom Hierarchical_task_network?oldid=682148584.
- Hierarchical_task_network isPrimaryTopicOf Hierarchical_task_network.