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Connectionist modelling of lexical segmentation and vocabulary acquisition

By Matt H. Davis

Abstract

Adults typically hear sentences in their native language as a sequence of separate words and we might therefeore assume, that words in speech are physically separated in the way that they are perceived. However, when listening to an unfamiliar language we no longer experience sequences of discrete words, but rather hear a continuous stream of speech with boundaries separating individual sentences or utterances. Theories of how adult listeners segment the speech stream into words emphasise the role that knowledge of individual words plays in the segmentation of speech. However, since words can not be learnt until the speech stream can be segmented, it seems unlikely that infants will be able to use word recognition to segment connected speech. For this reason, researchers have proposed a variety of strategies and cues that infants could use to identify word boundaries without being able to recognise the words that these boundaries delimit. This chapter, describes some computational simulations proposing ways in which these cues and strategies for the acquisition of lexical segmentation can be integrated with the infants’ acquisition of the meanings of words. The simulations reported here describe simple computational mechanisms and knowledge sources that may support these different aspects of language acquisition

Topics: Developmental Psychology, Neurolinguistics, Psycholinguistics
Publisher: Psychology Press
Year: 2002
OAI identifier: oai:cogprints.org:2306
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    Citations

    1. (1996). Integrating multiple cues in word segmentation: a connectionist model using hints.
    2. (1996). Models of word segmentation in fluent speech to infants. In
    3. (1995). Physical reasoning in infancy.
    4. (1991). Infants’ contribution to the achievement of joint reference.
    5. (1993). Infants' ability to consult the speaker for clues to word reference.
    6. (1981). Internal juncture and speech communication. In
    7. (1994). Possible names: the role of syntax-semantics mappings in the acquisition of nominals.
    8. (1999). Speech segmentation and word discovery: a computational perspective.
    9. (1996). Distributional regularity and phonotactic constraints are useful for segmentation.
    10. (2001). Lexical segmentation and vocabulary acquisition Bullinaria,
    11. (1971). Speech perception in early infancy,
    12. (1990). Finding structure in time.
    13. (1993). Learning and development in neural networks: the importance of starting small.
    14. (1996). Rethinking Innateness.
    15. (1990). The cascade correlation learning architecture.
    16. (1985). Four month old infants prefer to listen to motherese.
    17. (1998). Lexical segmentation and vocabulary
    18. (1989). A cross-language study of prosodic modifications in mothers’ and fathers’ speech to preverbal infants.
    19. (1994). Variability in early communicative development.
    20. (1997). Integrating form and meaning: a distributed model of speech perception.
    21. (1993). Preference for the predominant stress patterns of English words.
    22. (1993). Infants’ sensitivity to the sound patterns of native language words.
    23. (1997). Infants’ memory for spoken words.
    24. (1999). The beginnings of word segmentation in English-learning infants.
    25. (1984). Adaptive aspects of maternal vocalizations in differing contexts at ten weeks.
    26. (1960). An acoustic-phonetic study of internal open juncture.
    27. (1986). The TRACE model of speech perception.
    28. (1999). Rule learning by sevenmonth-old infants.
    29. (2000). Object knowledge in infancy: current controversies and approaches.
    30. (1999). Ambiguity, competition and blending in spoken word recognition.
    31. (1994). Modularity in a connectionist model of morphology acquisition.
    32. (1994). Words, words, words.
    33. (1993). Modeling the effects of processing limitations on the acquisition of morphology: the less is more hypothesis.
    34. (1989). Word boundary detection in broad class and phoneme strings.
    35. (1955). From phoneme to morpheme.
    36. (1997). The discovery of spoken language.
    37. (1999). How infants begin to extract words from speech.
    38. (1995). Infants' detection of the sound patterns of words in fluent speech.
    39. (2000). Artificial grammar learning by infants: An auto-associator perspective.
    40. (1996). Lexical segmentation and vocabulary acquisition
    41. (1990). Tensor product variable binding and the representation of symbolic structures in connectionist systems.
    42. (1998). Connectionism and the problem of multiple instantiation.
    43. (1997). Infants listen for more phonetic detailed in speech perception than in word-learning tasks.
    44. (1990). Learning and applying contextual constraints in sentence comprehension.
    45. (1999). Continuous processing in word recognition at 24 months.
    46. (1981). Semantic comprehension in infancy: A signal detection analysis.
    47. (1999). Some beginnings of word comprehension in 6-month-olds.
    48. (1993). The role of vocabulary development in children's spoken word recognition and segmentation ability.

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