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arXiv research

A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

168,695 papers · 148 categories

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1223 · May 202019922001200920172026
24 results for DeepWalk

The paper analyzes DeepWalk and node2vec for community detection in stochastic blockmodels.

problem Theoretical understanding of community detection in stochastic blockmodels.
method Matrix factorization perspective on DeepWalk and node2vec.
result Node2vec and DeepWalk can perfectly recover community memberships in sparse graphs.

InfiniteWalk connects deep network embeddings to spectral graph theory with a nonlinear transformation.

problem Learning node representations from networks with deep learning methods.
method Study of the DeepWalk objective in the limit as window size goes to infinity, linking to spectral graph embeddings with a nonlinear transformation.
result Simple binary thresholding of the Laplacian pseudoinverse can approximate DeepWalk embeddings.

This paper analyzes DeepWalk and node2vec for community detection in large networks.

problem Community detection in large, sparse networks.
method Low-dimensional network embedding algorithms (DeepWalk and node2vec) applied to random walk segments.
result The performance of DeepWalk and node2vec in recovering communities depends on the length of random walk segments and sparsity of the network.

Unsupervised node embedding methods (e.g., DeepWalk, LINE, and node2vec) have attracted growing interests given their simplicity and effectiveness. However, although these methods have been proved effective in a variety of applications, none of the existing work has analyzed the robustness of them. This could be very r…

2018-10-30abs ↗pdf ↗

We study the problem of large-scale network embedding, which aims to learn latent representations for network mining applications. Previous research shows that 1) popular network embedding benchmarks, such as DeepWalk, are in essence implicitly factorizing a matrix with a closed form, and 2)the explicit factorization o…

2019-06-26abs ↗pdf ↗

Graphs (networks) are ubiquitous and allow us to model entities (nodes) and the dependencies (edges) between them. Learning a useful feature representation from graph data lies at the heart and success of many machine learning tasks such as classification, anomaly detection, link prediction, among many others. Many exi…

2017-10-25abs ↗pdf ↗

Random walks are at the heart of many existing network embedding methods. However, such algorithms have many limitations that arise from the use of random walks, e.g., the features resulting from these methods are unable to transfer to new nodes and graphs as they are tied to vertex identity. In this work, we introduce…

2018-02-07abs ↗pdf ↗

Inferencing with network data necessitates the mapping of its nodes into a vector space, where the relationships are preserved. However, with multi-layered networks, where multiple types of relationships exist for the same set of nodes, it is crucial to exploit the information shared between layers, in addition to the …

2018-09-20abs ↗pdf ↗

Relational data mining is becoming ubiquitous in many fields of study. It offers insights into behaviour of complex, real-world systems which cannot be modeled directly using propositional learning. We propose Symbolic Graph Embedding (SGE), an algorithm aimed to learn symbolic node representations. Built on the ideas …

2019-10-29abs ↗pdf ↗

Networks are one of the most powerful structures for modeling problems in the real world. Downstream machine learning tasks defined on networks have the potential to solve a variety of problems. With link prediction, for instance, one can predict whether two persons will become friends on a social network. Many machine…

2019-11-26abs ↗pdf ↗

The paper studies how adding an ℓ2 penalty affects network embeddings.

problem The impact of ℓ2 regularization on network embeddings.
method Analyzes the asymptotic behavior of ℓ2 regularized node2vec embeddings under graphon theory.
result The learned embeddings asymptotically form a graphon with a nuclear-norm-type penalty.

Interactive news recommendation has been launched and attracted much attention recently. In this scenario, user's behavior evolves from single click behavior to multiple behaviors including like, comment, share etc. However, most of the existing methods still use single click behavior as the unique criterion of judging…

2018-11-30abs ↗pdf ↗

Unified taxonomy for graph representation learning.

problem Lack of unified understanding and integration of graph representation learning methods.
method Proposes a Graph Encoder Decoder Model (GRAPHEDM) to unify graph neural networks, network embedding, and graph regularization.
result Unified taxonomy and Graph Encoder Decoder Model (GRAPHEDM) for graph representation learning.

Network Embedding is the task of learning continuous node representations for networks, which has been shown effective in a variety of tasks such as link prediction and node classification. Most of existing works aim to preserve different network structures and properties in low-dimensional embedding vectors, while neg…

2019-08-30abs ↗pdf ↗

Many applications today, such as NLP, network analysis, and code analysis, rely on semantically embedding objects into low-dimensional fixed-length vectors. Such embeddings naturally provide a way to perform useful downstream tasks, such as identifying relations among objects or predicting objects for a given context, …

2019-09-08abs ↗pdf ↗

A framework evaluates the impact of different modules in graph contrastive learning.

problem Insufficient module-level evaluation in existing graph contrastive learning methods.
method Proposes a framework decomposing GCL models into four modules for module-level evaluation.
result Identifies module-level guidelines and competitive performance of different modules.