Search Results for author: Tin Lok James Ng

Found 6 papers, 1 papers with code

Spherical Poisson Point Process Intensity Function Modeling and Estimation with Measure Transport

1 code implementation24 Jan 2022 Tin Lok James Ng, Andrew Zammit-Mangion

Recent years have seen an increased interest in the application of methods and techniques commonly associated with machine learning and artificial intelligence to spatial statistics.

Point Processes Uncertainty Quantification

Fact Check: Analyzing Financial Events from Multilingual News Sources

no code implementations29 Jun 2021 Linyi Yang, Tin Lok James Ng, Barry Smyth, Ruihai Dong

The explosion in the sheer magnitude and complexity of financial news data in recent years makes it increasingly challenging for investment analysts to extract valuable insights and perform analysis.

Clustering

Posterior Regularization on Bayesian Hierarchical Mixture Clustering

no code implementations14 May 2021 Weipeng Huang, Tin Lok James Ng, Nishma Laitonjam, Neil J. Hurley

Bayesian hierarchical mixture clustering (BHMC) improves traditionalBayesian hierarchical clustering by replacing conventional Gaussian-to-Gaussian kernels with a Hierarchical Dirichlet Process Mixture Model(HDPMM) for parent-to-child diffusion in the generative process.

Clustering

Generating Plausible Counterfactual Explanations for Deep Transformers in Financial Text Classification

no code implementations COLING 2020 Linyi Yang, Eoin M. Kenny, Tin Lok James Ng, Yi Yang, Barry Smyth, Ruihai Dong

Corporate mergers and acquisitions (M&A) account for billions of dollars of investment globally every year, and offer an interesting and challenging domain for artificial intelligence.

counterfactual Explainable Artificial Intelligence (XAI) +3

Deep Compositional Spatial Models

no code implementations6 Jun 2019 Andrew Zammit-Mangion, Tin Lok James Ng, Quan Vu, Maurizio Filippone

Spatial processes with nonstationary and anisotropic covariance structure are often used when modelling, analysing and predicting complex environmental phenomena.

Gaussian Processes Uncertainty Quantification

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