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Towards an Algorithmic Account of Phonological Rules and Representations- [electronic resource]
Towards an Algorithmic Account of Phonological Rules and Representations - [electronic res...
Towards an Algorithmic Account of Phonological Rules and Representations- [electronic resource]

Detailed Information

자료유형  
 학위논문파일 국외
최종처리일시  
20240214101944
ISBN  
9798380371131
DDC  
401
저자명  
Belth, Caleb A.
서명/저자  
Towards an Algorithmic Account of Phonological Rules and Representations - [electronic resource]
발행사항  
[S.l.]: : University of Michigan., 2023
발행사항  
Ann Arbor : : ProQuest Dissertations & Theses,, 2023
형태사항  
1 online resource(215 p.)
주기사항  
Source: Dissertations Abstracts International, Volume: 85-03, Section: B.
주기사항  
Advisor: Coetzee, Andries;Koutra, Danai.
학위논문주기  
Thesis (Ph.D.)--University of Michigan, 2023.
사용제한주기  
This item must not be sold to any third party vendors.
사용제한주기  
This item must not be added to any third party search indexes.
초록/해제  
요약The development of computer science in the middle of the twentieth century provided a valuable tool for the study of language as a cognitive system, by allowing linguistic theories to be stated in computational terms. The resulting theories have traditionally placed emphasis on describing the space of possible human languages, and viewed this delineated space as antecedent to a theory of how such a language might be learned from linguistic data. In the domain of phonology-the study of the structure of linguistic sound-this dissertation takes steps approaching the problem from the opposite direction, by framing the problem as that of identifying the learning procedure(s) by which humans construct a language in response to linguistic exposure. The object of study is shifted from the investigation of how a learner will discover a supposed target grammar, to the investigation of the ontogenetic process by which humans develop computational, phonological systems.The proposed algorithmic approach identifies independently-established psychological mechanisms available to a learner, and then uses these as the components of a hypothesized learning procedure. The dissertation includes an algorithmic account of how graph-based representations of words, which render long-distance dependencies as local in that graph structure and are known as phonological tiers, arise naturally from a learning algorithm sensitive to only adjacent dependencies. The dissertation also proposes an algorithmic account of when abstract representations of morphemes are needed for effective generalization to unseen words in the face of the sparsity of linguistic input, and how rules can be constructed to map between these abstract representations and their concrete realizations. Stated in explicit, computational terms, the proposed learning system is evaluated on realistic natural language data, and makes precise, testable predictions. The learner constructs accurate linguistic generalizations from naturalistic data: across languages evaluated, the learner achieves, on average, 0.96 accuracy on held-out test words, and never lower than 0.92. These results are achieved with training data of no more than a thousand words. Moreover, the models' predictions are consistently borne out in developmental predictions and experimental settings, including a novel experiment carried out to directly test this model.When compared to a prominent alternative learning-based model-neural networks-the proposed model achieves higher accuracy, while producing comparatively interpretable outputs, and-critically-providing an intelligible algorithm, which brings greater understanding to the mechanisms underlying phonological development.
일반주제명  
Linguistics.
일반주제명  
Computer science.
키워드  
Phonology
키워드  
Computational modeling
키워드  
Language acquisition
키워드  
Natural language processing
키워드  
Representations
키워드  
psycholinguistics
기타저자  
University of Michigan Computer Science & Engineering
기본자료저록  
Dissertations Abstracts International. 85-03B.
기본자료저록  
Dissertation Abstract International
전자적 위치 및 접속  
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■035    ▼a(MiAaPQ)umichrackham004982
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a401
■1001  ▼aBelth,  Caleb  A.
■24510▼aTowards  an  Algorithmic  Account  of  Phonological  Rules  and  Representations▼h[electronic  resource]
■260    ▼a[S.l.]:▼bUniversity  of  Michigan.  ▼c2023
■260  1▼aAnn  Arbor  :▼bProQuest  Dissertations  &  Theses,  ▼c2023
■300    ▼a1  online  resource(215  p.)
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-03,  Section:  B.
■500    ▼aAdvisor:  Coetzee,  Andries;Koutra,  Danai.
■5021  ▼aThesis  (Ph.D.)--University  of  Michigan,  2023.
■506    ▼aThis  item  must  not  be  sold  to  any  third  party  vendors.
■506    ▼aThis  item  must  not  be  added  to  any  third  party  search  indexes.
■520    ▼aThe  development  of  computer  science  in  the  middle  of  the  twentieth  century  provided  a  valuable  tool  for  the  study  of  language  as  a  cognitive  system,  by  allowing  linguistic  theories  to  be  stated  in  computational  terms.  The  resulting  theories  have  traditionally  placed  emphasis  on  describing  the  space  of  possible  human  languages,  and  viewed  this  delineated  space  as  antecedent  to  a  theory  of  how  such  a  language  might  be  learned  from  linguistic  data.  In  the  domain  of  phonology-the  study  of  the  structure  of  linguistic  sound-this  dissertation  takes  steps  approaching  the  problem  from  the  opposite  direction,  by  framing  the  problem  as  that  of  identifying  the  learning  procedure(s)  by  which  humans  construct  a  language  in  response  to  linguistic  exposure.  The  object  of  study  is  shifted  from  the  investigation  of  how  a  learner  will  discover  a  supposed  target  grammar,  to  the  investigation  of  the  ontogenetic  process  by  which  humans  develop  computational,  phonological  systems.The  proposed  algorithmic  approach  identifies  independently-established  psychological  mechanisms  available  to  a  learner,  and  then  uses  these  as  the  components  of  a  hypothesized  learning  procedure.  The  dissertation  includes  an  algorithmic  account  of  how  graph-based  representations  of  words,  which  render  long-distance  dependencies  as  local  in  that  graph  structure  and  are  known  as  phonological  tiers,  arise  naturally  from  a  learning  algorithm  sensitive  to  only  adjacent  dependencies.  The  dissertation  also  proposes  an  algorithmic  account  of  when  abstract  representations  of  morphemes  are  needed  for  effective  generalization  to  unseen  words  in  the  face  of  the  sparsity  of  linguistic  input,  and  how  rules  can  be  constructed  to  map  between  these  abstract  representations  and  their  concrete  realizations.  Stated  in  explicit,  computational  terms,  the  proposed  learning  system  is  evaluated  on  realistic  natural  language  data,  and  makes  precise,  testable  predictions.  The  learner  constructs  accurate  linguistic  generalizations  from  naturalistic  data:  across  languages  evaluated,  the  learner  achieves,  on  average,  0.96  accuracy  on  held-out  test  words,  and  never  lower  than  0.92.  These  results  are  achieved  with  training  data  of  no  more  than  a  thousand  words.  Moreover,  the  models'  predictions  are  consistently  borne  out  in  developmental  predictions  and  experimental  settings,  including  a  novel  experiment  carried  out  to  directly  test  this  model.When  compared  to  a  prominent  alternative  learning-based  model-neural  networks-the  proposed  model  achieves  higher  accuracy,  while  producing  comparatively  interpretable  outputs,  and-critically-providing  an  intelligible  algorithm,  which  brings  greater  understanding  to  the  mechanisms  underlying  phonological  development.
■590    ▼aSchool  code:  0127.
■650  4▼aLinguistics.
■650  4▼aComputer  science.
■653    ▼aPhonology
■653    ▼aComputational  modeling
■653    ▼aLanguage  acquisition
■653    ▼aNatural  language  processing
■653    ▼aRepresentations
■653    ▼apsycholinguistics
■690    ▼a0984
■690    ▼a0290
■71020▼aUniversity  of  Michigan▼bComputer  Science  &  Engineering.
■7730  ▼tDissertations  Abstracts  International▼g85-03B.
■773    ▼tDissertation  Abstract  International
■790    ▼a0127
■791    ▼aPh.D.
■792    ▼a2023
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T16935537▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.
■980    ▼a202402▼f2024

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