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Towards Understanding and Defending Against Algorithmically Curated Misinformation- [electronic resource]
Towards Understanding and Defending Against Algorithmically Curated Misinformation - [elec...
Towards Understanding and Defending Against Algorithmically Curated Misinformation- [electronic resource]

상세정보

자료유형  
 학위논문파일 국외
최종처리일시  
20240214101255
ISBN  
9798380326773
DDC  
020
저자명  
Juneja, Prerna.
서명/저자  
Towards Understanding and Defending Against Algorithmically Curated Misinformation - [electronic resource]
발행사항  
[S.l.]: : University of Washington., 2023
발행사항  
Ann Arbor : : ProQuest Dissertations & Theses,, 2023
형태사항  
1 online resource(291 p.)
주기사항  
Source: Dissertations Abstracts International, Volume: 85-03, Section: B.
주기사항  
Advisor: Mitra, Tanushree.
학위논문주기  
Thesis (Ph.D.)--University of Washington, 2023.
사용제한주기  
This item must not be sold to any third party vendors.
초록/해제  
요약Search engines and online social media platforms have become important sources of information for users worldwide. Despite their popularity and ubiquitousness, online platforms are not always trustworthy sources of information. The platforms are driven by black box algorithms that optimize for engagement over the credibility of information. There are increasing concerns that online platforms amplify inaccurate information, making it easily accessible via search results and recommendations. In this thesis, I explore the role of online algorithms in promoting misinformation and design defenses against online misinformation by incorporating human-centered insights from stakeholders such as fact-checking organizations and news agencies. My research recognizes the multifaceted nature of online misinformation and explores the algorithmic, policy, fact-checking, and design aspects of the problem through three distinct research threads.In the first thread of my research, I investigate and audit online platforms such as YouTube and Amazon to understand the role of algorithms driving these platforms in surfacing and amplifying misinformative content to users. Through the audits, I found that performing certain real-world actions on misinformative content (e.g. watching a conspiratorial video on YouTube, or adding a misinformative book to the cart on Amazon) could lead users into problematic echo chambers of misinformation. Additionally, I identified vulnerable user populations who could be targets for specific misinformative topics on online platforms. In the second research thread, I explore ways to support the fact-checking process to combat online misinformation. For this work, I interviewed 14 fact-checking organizations and news agencies across four continents to understand their current fact-checking processes, challenges, and needs. This research establishes fact-checking process as a socio-technical phenomenon, revealing the collaborative efforts of various stakeholder groups and technological infrastructure in facilitating effective fact-checking endeavors. It also highlights the technical, policy, and informational barriers to fact-checking and emphasizes the need for systematic changes in civic, informational, and technological contexts to improve the overall quality of fact-checking. In the final thread of my dissertation research, I collaborated with Pesacheck, Africa's largest indigenous fact-checking organization, to design and develop YouCred---a fact-checking system that enables monitoring of algorithmically driven online platforms for misinformation. To create YouCred, I incorporated insights from previous research threads as well as the expertise and feedback of Pesacheck's fact-checkers throughout the development and design stages. YouCred specifically facilitates misinformation discovery and credibility assessments on the YouTube platform. It automatically generates search queries related to important events and topics of interest to fact-checkers and also offers an intuitive interface for annotating videos for misinformation. Through a nine-month evaluation period at Pesacheck, YouCred demonstrates its practical value and usefulness for fact-checkers, underscoring the importance of ongoing collaboration between fact-checking organizations and technology developers in combating online misinformation.
일반주제명  
Information science.
일반주제명  
Computer science.
일반주제명  
Design.
일반주제명  
Web studies.
키워드  
Social media platforms
키워드  
Search engines
키워드  
Misinformative content
기타저자  
University of Washington Information School
기본자료저록  
Dissertations Abstracts International. 85-03B.
기본자료저록  
Dissertation Abstract International
전자적 위치 및 접속  
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MARC

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■0820  ▼a020
■1001  ▼aJuneja,  Prerna.
■24510▼aTowards  Understanding  and  Defending  Against  Algorithmically  Curated  Misinformation▼h[electronic  resource]
■260    ▼a[S.l.]:▼bUniversity  of  Washington.  ▼c2023
■260  1▼aAnn  Arbor  :▼bProQuest  Dissertations  &  Theses,  ▼c2023
■300    ▼a1  online  resource(291  p.)
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-03,  Section:  B.
■500    ▼aAdvisor:  Mitra,  Tanushree.
■5021  ▼aThesis  (Ph.D.)--University  of  Washington,  2023.
■506    ▼aThis  item  must  not  be  sold  to  any  third  party  vendors.
■520    ▼aSearch  engines  and  online  social  media  platforms  have  become  important  sources  of  information  for  users  worldwide.    Despite  their  popularity  and  ubiquitousness,  online  platforms  are  not  always  trustworthy  sources  of  information.  The  platforms  are  driven  by  black  box  algorithms  that  optimize  for  engagement  over  the  credibility  of  information.  There  are  increasing  concerns  that  online  platforms  amplify  inaccurate  information,  making  it  easily  accessible  via  search  results  and  recommendations.    In  this  thesis,  I  explore  the  role  of  online  algorithms  in  promoting  misinformation  and  design  defenses  against  online  misinformation  by  incorporating  human-centered  insights  from  stakeholders  such  as  fact-checking  organizations  and  news  agencies.  My  research  recognizes  the  multifaceted  nature  of  online  misinformation  and  explores  the  algorithmic,  policy,  fact-checking,  and  design  aspects  of  the  problem  through  three  distinct  research  threads.In  the  first  thread  of  my  research,  I  investigate  and  audit  online  platforms  such  as  YouTube  and  Amazon  to  understand  the  role  of  algorithms  driving  these  platforms  in  surfacing  and  amplifying  misinformative  content  to  users.  Through  the  audits,  I  found  that  performing  certain  real-world  actions  on  misinformative  content    (e.g.  watching  a  conspiratorial  video  on  YouTube,  or  adding  a  misinformative  book  to  the  cart  on  Amazon)  could  lead  users  into  problematic  echo  chambers  of  misinformation.  Additionally,  I    identified  vulnerable  user  populations  who  could  be  targets  for  specific  misinformative  topics  on  online  platforms.  In  the  second  research  thread,  I  explore  ways  to  support  the  fact-checking  process  to  combat  online  misinformation.  For  this  work,      I  interviewed  14  fact-checking  organizations  and  news  agencies  across  four  continents  to  understand  their  current  fact-checking  processes,  challenges,  and  needs.  This  research  establishes  fact-checking  process  as  a  socio-technical  phenomenon,  revealing  the  collaborative  efforts  of  various  stakeholder  groups  and  technological  infrastructure  in  facilitating  effective  fact-checking  endeavors.    It  also  highlights  the  technical,  policy,  and  informational  barriers  to  fact-checking  and  emphasizes  the  need  for  systematic  changes  in  civic,  informational,  and  technological  contexts  to  improve  the  overall  quality  of  fact-checking.  In  the  final  thread  of  my  dissertation  research,  I  collaborated  with  Pesacheck,  Africa's  largest  indigenous  fact-checking  organization,  to  design  and  develop  YouCred---a  fact-checking  system  that  enables  monitoring  of  algorithmically  driven  online  platforms  for  misinformation.  To  create  YouCred,  I  incorporated  insights  from  previous  research  threads  as  well  as  the  expertise  and  feedback  of  Pesacheck's  fact-checkers  throughout  the  development  and  design  stages.  YouCred  specifically  facilitates  misinformation  discovery  and  credibility  assessments  on  the  YouTube  platform.  It  automatically  generates  search  queries  related  to  important  events  and  topics  of  interest  to  fact-checkers  and  also  offers  an  intuitive  interface  for  annotating  videos  for  misinformation.  Through  a  nine-month  evaluation  period  at  Pesacheck,  YouCred  demonstrates  its  practical  value  and  usefulness  for  fact-checkers,  underscoring  the  importance  of  ongoing  collaboration  between  fact-checking  organizations  and  technology  developers  in  combating  online  misinformation.
■590    ▼aSchool  code:  0250.
■650  4▼aInformation  science.
■650  4▼aComputer  science.
■650  4▼aDesign.
■650  4▼aWeb  studies.
■653    ▼aSocial  media  platforms
■653    ▼aSearch  engines
■653    ▼aMisinformative  content
■690    ▼a0723
■690    ▼a0984
■690    ▼a0389
■690    ▼a0646
■71020▼aUniversity  of  Washington▼bInformation  School.
■7730  ▼tDissertations  Abstracts  International▼g85-03B.
■773    ▼tDissertation  Abstract  International
■790    ▼a0250
■791    ▼aPh.D.
■792    ▼a2023
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T16933511▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.
■980    ▼a202402▼f2024

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