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Learning with Graph Structured Data
Learning with Graph Structured Data
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105539
- ISBN
- 9798263395186
- DDC
- 516.35
- 저자명
- Singh, Rahul.
- 서명/저자
- Learning with Graph Structured Data
- 발행사항
- [Sl] : Georgia Institute of Technology, 2023
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2023
- 형태사항
- 117 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-05, Section: A.
- 주기사항
- Advisor: Chen, Yongxin.
- 학위논문주기
- Thesis (Ph.D.)--Georgia Institute of Technology, 2023.
- 초록/해제
- 요약Graphs provide a natural way to represent information in structured form. A graph is a data structure describing a collection of entities, represented as nodes, and their pairwise relationships, represented as edges. When the entities in a graph are random variables, its gives rise to probabilistic graphical models (PGMs). PGMs provide a natural framework for the representation of complex systems and offer straightforward abstraction for the interactions within the systems. Reasoning with help of probabilistic graphical models allows us to answer inference queries with uncertainty following the framework of probability theory. General inference tasks can be to compute marginal probabilities, conditional probabilities of states of a system. Apart from the inference tasks in PGMs, another fundamental problem is learning the parameters of a candidate graphical model by extracting information from empirical observations.Traditional methods in PGMs are concerned with the structured data generated with known individual's association. When the structured data is generated by a large population of individuals with unknown individual's association, it gives rise to collective graphical models (CGMs). Learning and inference from large population is a difficult task and the lack of individual measurement makes it even more challenging. We address the inference problems from aggregate data via its connections to multimarginal optimal transport theory and propose convergent algorithms for aggregate inference and learning. We further specialize our methods to simple yet popular hidden Markov models (HMMs) and Gaussian HMMs.Another important problem with graph structured data is learning graph embeddings which has a vast variety of application domains including bioinformatics, social networks and recommendation systems. The standard deep learning techniques such as recurrent neural networks (RNNs) or convolutional neural networks (CNNs) cannot generalize to arbitrary graph structure. Recently, graph neural networks (GNNs) have been proposed to alleviate the limitations, however, in its current state it is far from being mature in both theory and applications. The existing GNNs methods cannot be directly applied to signed graphs (with positive as well as negative edges) due to computational irregularities. To this end, we propose spectral signed graph neural network designs for learning node embeddings for signed graphs. Furthermore, we introduce signed Magnetic Laplacian for spectral analysis of directed signed graphs and use it to propose new spectral GNN designs applicable to directed signed graphs.
- 일반주제명
- Polytopes
- 일반주제명
- Probability
- 일반주제명
- Fourier transforms
- 일반주제명
- Graph representations
- 일반주제명
- Signal processing
- 일반주제명
- Neural networks
- 일반주제명
- Electrical engineering
- 일반주제명
- Web studies
- 일반주제명
- Mathematics
- 기본자료저록
- Dissertations Abstracts International. 87-05A.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520260202105539
■006m o d
■007cr#unu||||||||
■020 ▼a9798263395186
■035 ▼a(MiAaPQ)AAI32315032
■035 ▼a(MiAaPQ)GeorgiaTech71983
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a516.35
■1001 ▼aSingh, Rahul.
■24510▼aLearning with Graph Structured Data
■260 ▼a[Sl]▼bGeorgia Institute of Technology▼c2023
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2023
■300 ▼a117 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-05, Section: A.
■500 ▼aAdvisor: Chen, Yongxin.
■5021 ▼aThesis (Ph.D.)--Georgia Institute of Technology, 2023.
■520 ▼aGraphs provide a natural way to represent information in structured form. A graph is a data structure describing a collection of entities, represented as nodes, and their pairwise relationships, represented as edges. When the entities in a graph are random variables, its gives rise to probabilistic graphical models (PGMs). PGMs provide a natural framework for the representation of complex systems and offer straightforward abstraction for the interactions within the systems. Reasoning with help of probabilistic graphical models allows us to answer inference queries with uncertainty following the framework of probability theory. General inference tasks can be to compute marginal probabilities, conditional probabilities of states of a system. Apart from the inference tasks in PGMs, another fundamental problem is learning the parameters of a candidate graphical model by extracting information from empirical observations.Traditional methods in PGMs are concerned with the structured data generated with known individual's association. When the structured data is generated by a large population of individuals with unknown individual's association, it gives rise to collective graphical models (CGMs). Learning and inference from large population is a difficult task and the lack of individual measurement makes it even more challenging. We address the inference problems from aggregate data via its connections to multimarginal optimal transport theory and propose convergent algorithms for aggregate inference and learning. We further specialize our methods to simple yet popular hidden Markov models (HMMs) and Gaussian HMMs.Another important problem with graph structured data is learning graph embeddings which has a vast variety of application domains including bioinformatics, social networks and recommendation systems. The standard deep learning techniques such as recurrent neural networks (RNNs) or convolutional neural networks (CNNs) cannot generalize to arbitrary graph structure. Recently, graph neural networks (GNNs) have been proposed to alleviate the limitations, however, in its current state it is far from being mature in both theory and applications. The existing GNNs methods cannot be directly applied to signed graphs (with positive as well as negative edges) due to computational irregularities. To this end, we propose spectral signed graph neural network designs for learning node embeddings for signed graphs. Furthermore, we introduce signed Magnetic Laplacian for spectral analysis of directed signed graphs and use it to propose new spectral GNN designs applicable to directed signed graphs.
■590 ▼aSchool code: 0078.
■650 4▼aPolytopes
■650 4▼aProbability
■650 4▼aFourier transforms
■650 4▼aGraph representations
■650 4▼aSignal processing
■650 4▼aNeural networks
■650 4▼aElectrical engineering
■650 4▼aWeb studies
■650 4▼aMathematics
■690 ▼a0800
■690 ▼a0544
■690 ▼a0646
■690 ▼a0405
■71020▼aGeorgia Institute of Technology.
■7730 ▼tDissertations Abstracts International▼g87-05A.
■790 ▼a0078
■791 ▼aPh.D.
■792 ▼a2023
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360514▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


