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Image Understanding and Knowledge-Based Systems
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Informatik IX

Image Understanding and Knowledge-Based Systems

Boltzmannstrasse 3
85748 Garching

info@iuks.in.tum.de




GrAM: Reasoning with Grounded Action Models by Combining Knowledge Representation and Data Mining (bibtex)
GrAM: Reasoning with Grounded Action Models by Combining Knowledge Representation and Data Mining (bibtex)
by Nv Hoyningen-Huene, B Kirchlechner and M Beetz
Abstract:
This paper proposes GrAM (Grounded Action Models), a novel integration of actions and action models into the knowledge representation and inference mechanisms of agents. In GrAM action models accord to agent behavior and can be specified explicitly and implicitly. The explicit representation is an action class specific set of Markov logic rules that predict action properties. Stated implicitly an action model defines a data mining problem that, when executed, computes the model's explicit representation. When inferred from an implicit representation the prediction rules predict typical behavior and are learned from a set of training examples, or, in other words, grounded in the respective experience of the agents. Therefore, GrAM allows for the functional and thus adaptive specification of concepts such as the class of situations in which a special action is typically executed successfully or the concept of agents that tend to execute certain kinds of actions. GrAM represents actions and their models using an upgrading of the representation language OWL and equips the Java Theorem Prover (JTP), a hybrid reasoner for OWL, with additional mechanisms that allow for the automatic acquisition of action models and solving a variety of inference tasks for actions, action models and functional descriptions.
Reference:
GrAM: Reasoning with Grounded Action Models by Combining Knowledge Representation and Data Mining (Nv Hoyningen-Huene, B Kirchlechner and M Beetz), In Towards Affordance-based Robot Control, 2007. 
Bibtex Entry:
@inproceedings{hoyningen-huene_gram:_2007,
 author = {Nv Hoyningen-Huene and B Kirchlechner and M Beetz},
 title = {{GrAM:} Reasoning with Grounded Action Models by Combining Knowledge
	Representation and Data Mining},
 booktitle = {Towards Affordance-based Robot Control},
 year = {2007},
 abstract = {This paper proposes {GrAM} (Grounded Action Models), a novel integration
	of actions and action models into the knowledge representation and
	inference mechanisms of agents. In {GrAM} action models accord to
	agent behavior and can be specified explicitly and implicitly. The
	explicit representation is an action class specific set of Markov
	logic rules that predict action properties. Stated implicitly an
	action model defines a data mining problem that, when executed, computes
	the model's explicit representation. When inferred from an implicit
	representation the prediction rules predict typical behavior and
	are learned from a set of training examples, or, in other words,
	grounded in the respective experience of the agents. Therefore, {GrAM}
	allows for the functional and thus adaptive specification of concepts
	such as the class of situations in which a special action is typically
	executed successfully or the concept of agents that tend to execute
	certain kinds of actions. {GrAM} represents actions and their models
	using an upgrading of the representation language {OWL} and equips
	the Java Theorem Prover ({JTP)}, a hybrid reasoner for {OWL}, with
	additional mechanisms that allow for the automatic acquisition of
	action models and solving a variety of inference tasks for actions,
	action models and functional descriptions.},
}
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Informatik IX

Image Understanding and Knowledge-Based Systems

Boltzmannstrasse 3
85748 Garching

info@iuks.in.tum.de