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Human-Centered Natural Language Processing for Countering Misinformation
Human-Centered Natural Language Processing for Countering Misinformation
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211152104
- ISBN
- 9798382740676
- DDC
- 004
- 저자명
- Kazemi, Ashkan.
- 서명/저자
- Human-Centered Natural Language Processing for Countering Misinformation
- 발행사항
- [Sl] : University of Michigan, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 주기사항
- Source: Dissertations Abstracts International, Volume: 85-12, Section: A.
- 주기사항
- Advisor: Mihalcea, Rada;Perez-Rosas, Veronica.
- 학위논문주기
- Thesis (Ph.D.)--University of Michigan, 2024.
- 초록/해제
- 요약As curbing the spread of online misinformation has proven to be challenging, we look to artificial intelligence (AI) and natural language technology for helping individuals and society counter and limit it. Despite current advances, state-of-the-art natural language processing (NLP) and AI still struggle to automatically identify and understand misinformation. Humans exposed to harmful content may experience lasting negative consequences in real life, and it is often difficult to change one's mind once they form wrong beliefs. Addressing these interwoven technical and social challenges requires research and understanding into the core mechanisms that drive the phenomena of misinformation. This thesis introduces human-centered NLP tasks and methods that can help prioritize human welfare in countering misinformation. We present findings on the differences in how people of different backgrounds perceive misinformation, and how misinformation unfolds in different conditions such as end-to-end encrypted social media in India. We build on this understanding to create models and datasets for identifying misinformation at scale that put humans in the decision making seat, through claim matching, matching claims with fact-check reports, and query rewriting that scale the efforts of fact-checkers. Our work highlights the global impact of misinformation, and contributes to advancing the equitability of available language technologies through models and datasets in a variety of high and low resources and languages. We also make fundamental contributions to data, algorithms, and models through: multilingual and low-resource embeddings and retrieval for better claim matching, reinforcement learning for reformulating queries for better misinformation discovery, unsupervised and graph-based focused content extraction through introducing the Biased TextRank algorithm, and explanation generation through extractive (Biased TextRank) and abstractive (GPT-2) summarization. Through this thesis, we aim to promote individual and social wellbeing by creating language technologies built on a deeper understanding of misinformation, and provide tools to help journalists as well as internet users to identify and navigate around it.
- 일반주제명
- Computer science
- 일반주제명
- Communication
- 키워드
- Misinformation
- 키워드
- Biased TextRank
- 기타저자
- University of Michigan Computer Science & Engineering
- 기본자료저록
- Dissertations Abstracts International. 85-12A.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■020 ▼a9798382740676
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■035 ▼a(MiAaPQ)umichrackham005371
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a004
■1001 ▼aKazemi, Ashkan.
■24510▼aHuman-Centered Natural Language Processing for Countering Misinformation
■260 ▼a[Sl]▼bUniversity of Michigan▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■500 ▼aSource: Dissertations Abstracts International, Volume: 85-12, Section: A.
■500 ▼aAdvisor: Mihalcea, Rada;Perez-Rosas, Veronica.
■5021 ▼aThesis (Ph.D.)--University of Michigan, 2024.
■520 ▼aAs curbing the spread of online misinformation has proven to be challenging, we look to artificial intelligence (AI) and natural language technology for helping individuals and society counter and limit it. Despite current advances, state-of-the-art natural language processing (NLP) and AI still struggle to automatically identify and understand misinformation. Humans exposed to harmful content may experience lasting negative consequences in real life, and it is often difficult to change one's mind once they form wrong beliefs. Addressing these interwoven technical and social challenges requires research and understanding into the core mechanisms that drive the phenomena of misinformation. This thesis introduces human-centered NLP tasks and methods that can help prioritize human welfare in countering misinformation. We present findings on the differences in how people of different backgrounds perceive misinformation, and how misinformation unfolds in different conditions such as end-to-end encrypted social media in India. We build on this understanding to create models and datasets for identifying misinformation at scale that put humans in the decision making seat, through claim matching, matching claims with fact-check reports, and query rewriting that scale the efforts of fact-checkers. Our work highlights the global impact of misinformation, and contributes to advancing the equitability of available language technologies through models and datasets in a variety of high and low resources and languages. We also make fundamental contributions to data, algorithms, and models through: multilingual and low-resource embeddings and retrieval for better claim matching, reinforcement learning for reformulating queries for better misinformation discovery, unsupervised and graph-based focused content extraction through introducing the Biased TextRank algorithm, and explanation generation through extractive (Biased TextRank) and abstractive (GPT-2) summarization. Through this thesis, we aim to promote individual and social wellbeing by creating language technologies built on a deeper understanding of misinformation, and provide tools to help journalists as well as internet users to identify and navigate around it.
■590 ▼aSchool code: 0127.
■650 4▼aComputer science
■650 4▼aCommunication
■653 ▼aNatural language processing
■653 ▼aMisinformation
■653 ▼aHuman-centered NLP
■653 ▼aBiased TextRank
■690 ▼a0984
■690 ▼a0800
■690 ▼a0459
■71020▼aUniversity of Michigan▼bComputer Science & Engineering.
■7730 ▼tDissertations Abstracts International▼g85-12A.
■790 ▼a0127
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17162860▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
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