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46 lines
2.9 KiB
46 lines
2.9 KiB
entries:
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10.1371_journal.pone.0038236:
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abstract: <p>The advent of humanoid robots has enabled a new approach to investigating
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the acquisition of language, and we report on the development of robots
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able to acquire rudimentary linguistic skills. Our work focuses on early
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stages analogous to some characteristics of a human child of about 6 to
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14 months, the transition from babbling to first word forms. We investigate
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one mechanism among many that may contribute to this process, a key factor
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being the sensitivity of learners to the statistical distribution of linguistic
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elements. As well as being necessary for learning word meanings, the acquisition
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of anchor word forms facilitates the segmentation of an acoustic stream
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through other mechanisms. In our experiments some salient one-syllable
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word forms are learnt by a humanoid robot in real-time interactions with
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naive participants. Words emerge from random syllabic babble through a
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learning process based on a dialogue between the robot and the human participant,
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whose speech is perceived by the robot as a stream of phonemes. Numerous
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ways of representing the speech as syllabic segments are possible. Furthermore,
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the pronunciation of many words in spontaneous speech is variable. However,
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in line with research elsewhere, we observe that salient content words
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are more likely than function words to have consistent canonical representations;
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thus their relative frequency increases, as does their influence on the
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learner. Variable pronunciation may contribute to early word form acquisition.
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The importance of contingent interaction in real-time between teacher
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and learner is reflected by a reinforcement process, with variable success.
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The examination of individual cases may be more informative than group
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results. Nevertheless, word forms are usually produced by the robot after
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a few minutes of dialogue, employing a simple, real-time, frequency dependent
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mechanism. This work shows the potential of human-robot interaction systems
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in studies of the dynamics of early language acquisition.</p>
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author:
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- first: Caroline
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last: Saunders
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middle: Lyon AND Chrystopher L. Nehaniv AND Joe
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doi: 10.1371/journal.pone.0038236
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journal: PLoS ONE
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month: '06'
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number: '6'
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pages: e38236
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publisher: Public Library of Science
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title: 'Interactive Language Learning by Robots: The Transition from Babbling
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to Word Forms'
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type: article
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url: http://dx.doi.org/10.1371%2Fjournal.pone.0038236
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volume: '7'
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year: '2012'
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