<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-09-20T23:52:24Z</responseDate><request verb="GetRecord" identifier="oai:dspace.mit.edu:1721.1/153784" metadataPrefix="dim">https://dspace.mit.edu/server/oai/request</request><GetRecord><record><header><identifier>oai:dspace.mit.edu:1721.1/153784</identifier><datestamp>2024-03-16T04:08:33Z</datestamp><setSpec>com_1721.1_7582</setSpec><setSpec>com_1721.1_7581</setSpec><setSpec>col_1721.1_131023</setSpec></header><metadata><dim:dim xmlns:dim="http://www.dspace.org/xmlns/dspace/dim" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:doc="http://www.lyncode.com/xoai" xsi:schemaLocation="http://www.dspace.org/xmlns/dspace/dim http://www.dspace.org/schema/dim.xsd">
   <dim:field mdschema="dc" element="contributor" qualifier="advisor">Glass, James R.</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="author">Chang, Heng-Jui</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="department">Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="accessioned">2024-03-15T19:23:50Z</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="available">2024-03-15T19:23:50Z</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="issued">2024-02</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="submitted">2024-02-21T17:10:05.097Z</dim:field>
   <dim:field mdschema="dc" element="identifier" qualifier="uri">https://hdl.handle.net/1721.1/153784</dim:field>
   <dim:field mdschema="dc" element="identifier" qualifier="orcid">https://orcid.org/0000-0002-1690-2610</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="abstract">Despite success across various tasks, self-supervised speech models face significant challenges in enhancing content-related performance with unlabeled data, requiring substantial computational resources. Meanwhile, learning from clustered discrete units has been shown to facilitate accurate phonetic representations. Thus, this thesis investigates speaker and noise-invariant speech representations. First, Speaker-invariant Clustering (Spin) is proposed to extract content representations through online clustering and speaker-invariant cross-view prediction. Second, Robust Spin (R-Spin) is devised to extend Spin to handle more distorted speech signals by leveraging acoustic pieces. Furthermore, this thesis includes a diverse set of evaluation and visualization techniques to quantitatively and qualitatively analyze the perturbation invariability of the proposed methods. This thesis offers approaches to producing perturbation-invariant speech representations and deeply investigates the characteristics of the learned representations, providing insights into these models and cultivating future extension possibilities.</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="degree">S.M.</dim:field>
   <dim:field mdschema="dc" element="publisher">Massachusetts Institute of Technology</dim:field>
   <dim:field mdschema="dc" element="rights">In Copyright - Educational Use Permitted</dim:field>
   <dim:field mdschema="dc" element="rights">Copyright retained by author(s)</dim:field>
   <dim:field mdschema="dc" element="rights" qualifier="uri">https://rightsstatements.org/page/InC-EDU/1.0/</dim:field>
   <dim:field mdschema="dc" element="title">Perturbation-invariant Speech Representation Learning by Online Clustering</dim:field>
   <dim:field mdschema="dc" element="type">Thesis</dim:field>
   <dim:field mdschema="dc" element="format" qualifier="mimetype">application/pdf</dim:field>
   <dim:field mdschema="mit" element="thesis" qualifier="degree">Master</dim:field>
   <dim:field mdschema="thesis" element="degree" qualifier="name">Master of Science in Electrical Engineering and Computer Science</dim:field>
   <dim:field mdschema="dspace" element="entity" qualifier="type">Publication</dim:field>
   <dim:field mdschema="others" element="access-status">unknown</dim:field>
   <dim:field mdschema="others" element="access-status">unknown</dim:field>
   <dim:field mdschema="cerif" element="openaire" authority="" confidence="-1">&lt;Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="01621aeb-f547-4483-9859-fdd7bfd50497">
	&lt;Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843&lt;/Type>
   	&lt;Title>Perturbation-invariant Speech Representation Learning by Online Clustering&lt;/Title>
   	&lt;PublishedIn>
    	&lt;Publication>
      	&lt;/Publication>
   	&lt;/PublishedIn>
   	&lt;PublicationDate>2024-02&lt;/PublicationDate>
   	&lt;Authors>
      	&lt;Author>
        	&lt;DisplayName>Chang, Heng-Jui&lt;/DisplayName>
         	&lt;Affiliation>
         		&lt;OrgUnit>
         		&lt;/OrgUnit>
         	&lt;/Affiliation>
      	&lt;/Author>
	&lt;/Authors>
   	&lt;Editors>
	&lt;/Editors>
    &lt;Publishers>
        &lt;Publisher>
            &lt;DisplayName>Massachusetts Institute of Technology&lt;/DisplayName>
            &lt;OrgUnit />
        &lt;/Publisher>
    &lt;/Publishers>
    &lt;License>https://rightsstatements.org/page/InC-EDU/1.0/&lt;/License>
   	&lt;Abstract>Despite success across various tasks, self-supervised speech models face significant challenges in enhancing content-related performance with unlabeled data, requiring substantial computational resources. Meanwhile, learning from clustered discrete units has been shown to facilitate accurate phonetic representations. Thus, this thesis investigates speaker and noise-invariant speech representations. First, Speaker-invariant Clustering (Spin) is proposed to extract content representations through online clustering and speaker-invariant cross-view prediction. Second, Robust Spin (R-Spin) is devised to extend Spin to handle more distorted speech signals by leveraging acoustic pieces. Furthermore, this thesis includes a diverse set of evaluation and visualization techniques to quantitatively and qualitatively analyze the perturbation invariability of the proposed methods. This thesis offers approaches to producing perturbation-invariant speech representations and deeply investigates the characteristics of the learned representations, providing insights into these models and cultivating future extension possibilities.&lt;/Abstract>
	&lt;Access xmlns="http://purl.org/coar/access_right" 
    >
    &lt;/Access>
&lt;/Publication>
</dim:field>
</dim:dim>
</metadata></record></GetRecord></OAI-PMH>