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Type of publication: research article
Type of publication (PDB): Straipsnis konferencijos medžiagoje kitose duomenų bazėse / Article in conference proceedings in other databases (P1c)
Field of Science: Informatika / Informatics (N009)
Author(s): Tamošiūnaitė, Minija;Markelic, Irene;Kulvičius, Tomas;Wörgötter, Florentin
Title: Generalizing objects by analyzing language
Is part of: IEEE-RAS : 11th international conference on Humanoid robots bled, Slovenia, October 26-28, 2011 Piscataway : IEEE Press
Extent: p. 557-563
Date: 2011
ISBN: 9781612848686
Abstract: Generalizing objects in an action-context by a robot, for example addressing the problem: ”Which items can be cut with which tools?”, is an unresolved and difficult problem. Answering such a question defines a complete action class and robots cannot do this so far. We use a bootstrapping mechanism similar to that known from human language acquisition, and combine language- with image-analysis to create action classes built around the verb (action) in an utterance. A human teaches the robot a certain sentence, for example: ”Cut a sausage with a knife”, from where on the machine generalizes the arguments (nouns) that the verb takes and searches for possible alternative nouns. Then, by ways of an internet-based image search and a classification algorithm, image classes for the alternative nouns are extracted, by which a large ”picture book” of the possible objects involved in an action is created. This concludes the generalization step. Using the same classifier, the machine can now also perform a recognition procedure. Without having seen the objects before, it can analyze a visual scene, discovering, for example, a cucumber and a mandolin, which match to the earlier found nouns allowing it to suggest actions like: ”I could cut a cucumber with a mandolin”. The algorithm for generalizing objects by analyzing language (GOAL) presented here, allows, thus, generalization and recognition of objects in an action-context. It can then be combined with methods for action execution (e.g. action generation-based on human demonstration) to execute so far unknown actions
Affiliation(s): Informatikos fakultetas
Vytauto Didžiojo universitetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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