Search Results for author: Ruiyi Yang

Found 8 papers, 1 papers with code

SSTKG: Simple Spatio-Temporal Knowledge Graph for Intepretable and Versatile Dynamic Information Embedding

no code implementations19 Feb 2024 Ruiyi Yang, Flora D. Salim, Hao Xue

Our framework offers a simple but comprehensive way to understand the underlying patterns and trends in dynamic KG, thereby enhancing the accuracy of predictions and the relevance of recommendations.

Knowledge Graphs Link Prediction

Gaussian Process Regression under Computational and Epistemic Misspecification

no code implementations14 Dec 2023 Daniel Sanz-Alonso, Ruiyi Yang

Gaussian process regression is a classical kernel method for function estimation and data interpolation.

regression

Alignment of Density Maps in Wasserstein Distance

2 code implementations21 May 2023 Amit Singer, Ruiyi Yang

In this paper we propose an algorithm for aligning three-dimensional objects when represented as density maps, motivated by applications in cryogenic electron microscopy.

Bayesian Optimization

Optimization on Manifolds via Graph Gaussian Processes

no code implementations20 Oct 2022 Hwanwoo Kim, Daniel Sanz-Alonso, Ruiyi Yang

We rely on a point cloud of manifold samples to define a graph Gaussian process surrogate model for the objective.

Gaussian Processes

Mathematical Foundations of Graph-Based Bayesian Semi-Supervised Learning

no code implementations3 Jul 2022 Nicolas García Trillos, Daniel Sanz-Alonso, Ruiyi Yang

In recent decades, science and engineering have been revolutionized by a momentous growth in the amount of available data.

Computational Efficiency TAG

Uniform Consistency in Nonparametric Mixture Models

no code implementations31 Aug 2021 Bryon Aragam, Ruiyi Yang

We study uniform consistency in nonparametric mixture models as well as closely related mixture of regression (also known as mixed regression) models, where the regression functions are allowed to be nonparametric and the error distributions are assumed to be convolutions of a Gaussian density.

regression

Unlabeled Data Help in Graph-Based Semi-Supervised Learning: A Bayesian Nonparametrics Perspective

no code implementations26 Aug 2020 Daniel Sanz-Alonso, Ruiyi Yang

In this paper we analyze the graph-based approach to semi-supervised learning under a manifold assumption.

regression

Local Regularization of Noisy Point Clouds: Improved Global Geometric Estimates and Data Analysis

no code implementations6 Apr 2019 Nicolas Garcia Trillos, Daniel Sanz-Alonso, Ruiyi Yang

Several data analysis techniques employ similarity relationships between data points to uncover the intrinsic dimension and geometric structure of the underlying data-generating mechanism.

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