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Generalized Category Discovery (GCD) aims to classify unlabeled data containing both seen and novel categories. Although existing methods perform well on generic datasets, they struggle in fine-grained scenarios. We attribute this…

计算机视觉与模式识别 · 计算机科学 2025-03-24 Enguang Wang , Zhimao Peng , Zhengyuan Xie , Haori Lu , Fei Yang , Xialei Liu

Bayesian change-point detection, together with latent variable models, allows to perform segmentation over high-dimensional time-series. We assume that change-points lie on a lower-dimensional manifold where we aim to infer subsets of…

机器学习 · 统计学 2020-11-04 Lorena Romero-Medrano , Pablo Moreno-Muñoz , Antonio Artés-Rodríguez

We consider the problem of learning mixtures of generalized linear models (GLM) which arise in classification and regression problems. Typical learning approaches such as expectation maximization (EM) or variational Bayes can get stuck in…

机器学习 · 计算机科学 2016-01-14 Hanie Sedghi , Majid Janzamin , Anima Anandkumar

In this paper, we develop a multivariate evolutionary generalised linear model (GLM) framework for claims reserving, which allows for dynamic features of claims activity in conjunction with dependency across business lines to accurately…

风险管理 · 定量金融 2020-09-10 Benjamin Avanzi , Gregory Clive Taylor , Phuong Anh Vu , Bernard Wong

This paper introduces a novel model compression approach through dynamic layer-specific pruning in Large Language Models (LLMs), enhancing the traditional methodology established by SliceGPT. By transitioning from constant to dynamic…

计算与语言 · 计算机科学 2024-11-07 Razvan-Gabriel Dumitru , Paul-Ioan Clotan , Vikas Yadav , Darius Peteleaza , Mihai Surdeanu

Regression models are popular tools in empirical sciences to infer the influence of a set of variables onto a dependent variable given an experimental dataset. In neuroscience and cognitive psychology, Generalized Linear Models (GLMs)…

应用统计 · 统计学 2020-02-04 Vincent Adam , Alexandre Hyafil

Gaussian Process Latent Variable Models (GPLVMs) have become increasingly popular for unsupervised tasks such as dimensionality reduction and missing data recovery due to their flexibility and non-linear nature. An importance-weighted…

机器学习 · 计算机科学 2026-03-10 Jian Xu , Shian Du , Junmei Yang , Qianli Ma , Delu Zeng , John Paisley

We propose a dynamic factor model (DFM) where the latent factors are linked to observed variables with unknown and potentially nonlinear functions. The key novelty and source of flexibility of our approach is a nonparametric observation…

计量经济学 · 经济学 2025-09-08 Tony Chernis , Niko Hauzenberger , Haroon Mumtaz , Michael Pfarrhofer

Instrumental variable analysis is a powerful tool for estimating causal effects when randomization or full control of confounders is not possible. The application of standard methods such as 2SLS, GMM, and more recent variants are…

机器学习 · 统计学 2020-06-08 Andrew Bennett , Nathan Kallus , Tobias Schnabel

Determinantal point processes (DPPs) offer a powerful approach to modeling diversity in many applications where the goal is to select a diverse subset. We study the problem of learning the parameters (the kernel matrix) of a DPP from…

机器学习 · 统计学 2014-11-10 Boqing Gong , Wei-lun Chao , Kristen Grauman , Fei Sha

Determinantal point processes (DPPs) are random point processes well-suited for modeling repulsion. In machine learning, the focus of DPP-based models has been on diverse subset selection from a discrete and finite base set. This discrete…

机器学习 · 统计学 2013-11-14 Raja Hafiz Affandi , Emily B. Fox , Ben Taskar

This work is motivated by an application for the homogeneization of GNSS-derived IWV (Integrated Water Vapour) series. Indeed, these GPS series are affected by abrupt changes due to equipment changes or environemental effects. The detection…

统计方法学 · 统计学 2018-06-26 Olivier Bock , Xavier Collilieux , François Guillamon , Emilie Lebarbier , Claire Pascal

We propose an L1-penalized algorithm for fitting high-dimensional generalized linear mixed models. Generalized linear mixed models (GLMMs) can be viewed as an extension of generalized linear models for clustered observations. This…

统计计算 · 统计学 2014-06-03 Jürg Schelldorfer , Lukas Meier , Peter Bühlmann

We develop deep Poisson-gamma dynamical systems (DPGDS) to model sequentially observed multivariate count data, improving previously proposed models by not only mining deep hierarchical latent structure from the data, but also capturing…

机器学习 · 统计学 2019-01-03 Dandan Guo , Bo Chen , Hao Zhang , Mingyuan Zhou

We present the Mixed Likelihood Gaussian process latent variable model (GP-LVM), capable of modeling data with attributes of different types. The standard formulation of GP-LVM assumes that each observation is drawn from a Gaussian…

机器学习 · 计算机科学 2018-11-20 Samuel Murray , Hedvig Kjellström

The generalized Gauss-Newton (GGN) approximation is often used to make practical Bayesian deep learning approaches scalable by replacing a second order derivative with a product of first order derivatives. In this paper we argue that the…

机器学习 · 统计学 2021-02-26 Alexander Immer , Maciej Korzepa , Matthias Bauer

We present the Gaussian process dynamical mixture model (GPDMM) and show its utility in single-example learning of human motion data. The Gaussian process dynamical model (GPDM) is a form of the Gaussian process latent variable model…

机器学习 · 计算机科学 2025-06-18 Jesse St. Amand , Leonardo Gizzi , Martin A. Giese

Configuration Optimization Problems (COPs), which involve minimizing a loss function over a set of discrete points $\boldsymbol{\gamma} \subset P$, are common in areas like Model Order Reduction, Active Learning, and Optimal Experimental…

数值分析 · 数学 2024-10-24 Evie Nielen , Oliver Tse , Karen Veroy

Modern scientific problems are often multi-disciplinary and require integration of computer models from different disciplines, each with distinct functional complexities, programming environments, and computation times. Linked Gaussian…

机器学习 · 统计学 2023-06-05 Deyu Ming , Daniel Williamson

We introduce a novel varying-weight dependent Dirichlet process (DDP) model that extends a recently developed semi-parametric generalized linear model (SPGLM) by adding a nonparametric Bayesian prior on the baseline distribution of the GLM.…

统计方法学 · 统计学 2025-03-31 Entejar Alam , Paul J. Rathouz , Peter Mueller