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Parametric Markov chains (pMCs) are Markov chains (MCs) with symbolic probabilities. A pMC encodes a family of MCs, where each member is obtained by replacing parameters with constants. The parameters allow encoding dependencies between…

计算机科学中的逻辑 · 计算机科学 2025-08-05 Linus Heck , Tim Quatmann , Jip Spel , Joost-Pieter Katoen , Sebastian Junges

In parameter estimation problems one computes a posterior distribution over uncertain parameters defined jointly by a prior distribution, a model, and noisy data. Markov Chain Monte Carlo (MCMC) is often used for the numerical solution of…

In large-scale genomic applications vast numbers of molecular features are scanned in order to find a small number of candidates which are linked to a particular disease or phenotype. This is a variable selection problem in the "large p,…

统计计算 · 统计学 2014-02-13 Manuela Zucknick , Sylvia Richardson

This work addresses the problem of segmentation in time series data with respect to a statistical parameter of interest in Bayesian models. It is common to assume that the parameters are distinct within each segment. As such, many Bayesian…

机器学习 · 计算机科学 2017-10-27 Alireza Ahrabian , Shirin Enshaeifar , Clive Cheong-Took , Payam Barnaghi

We propose a Monte Carlo sampler from the reverse diffusion process. Unlike the practice of diffusion models, where the intermediary updates -- the score functions -- are learned with a neural network, we transform the score matching…

机器学习 · 统计学 2024-03-14 Xunpeng Huang , Hanze Dong , Yifan Hao , Yi-An Ma , Tong Zhang

Multi-label classification (MLC) refers to the problem of tagging a given instance with a set of relevant labels. Most existing MLC methods are based on the assumption that the correlation of two labels in each label pair is symmetric,…

机器学习 · 计算机科学 2024-10-04 Xingyu Zhao , Yuexuan An , Lei Qi , Xin Geng

This paper introduces the R package sgmcmc; which can be used for Bayesian inference on problems with large datasets using stochastic gradient Markov chain Monte Carlo (SGMCMC). Traditional Markov chain Monte Carlo (MCMC) methods, such as…

统计计算 · 统计学 2018-04-16 Jack Baker , Paul Fearnhead , Emily B. Fox , Christopher Nemeth

In multi-label learning, leveraging contrastive learning to learn better representations faces a key challenge: selecting positive and negative samples and effectively utilizing label information. Previous studies selected positive and…

机器学习 · 计算机科学 2025-02-03 Ning Chen , Shen-Huan Lyu , Tian-Shuang Wu , Yanyan Wang , Bin Tang

Markov chain Monte Carlo (MCMC) algorithms are indispensable when sampling from a complex, high-dimensional distribution by a conventional method is intractable. Even though MCMC is a powerful tool, it is also hard to control and tune in…

图形学 · 计算机科学 2025-10-14 Sascha Holl , Gurprit Singh , Hans-Peter Seidel

Evaluating the degree of partisan districting (Gerrymandering) in a statistical framework typically requires an ensemble of districting plans which are drawn from a prescribed probability distribution that adheres to a realistic and…

统计计算 · 统计学 2020-08-19 Gregory Herschlag , Jonathan C. Mattingly , Matthias Sachs , Evan Wyse

In partial multi-label learning (PML), each data example is equipped with a candidate label set, which consists of multiple ground-truth labels and other false-positive labels. Recently, graph-based methods, which demonstrate a good ability…

机器学习 · 计算机科学 2023-05-11 Haobo Wang , Shisong Yang , Gengyu Lyu , Weiwei Liu , Tianlei Hu , Ke Chen , Songhe Feng , Gang Chen

We present a new framework to derandomise certain Markov chain Monte Carlo (MCMC) algorithms. As in MCMC, we first reduce counting problems to sampling from a sequence of marginal distributions. For the latter task, we introduce a method…

数据结构与算法 · 计算机科学 2023-04-05 Weiming Feng , Heng Guo , Chunyang Wang , Jiaheng Wang , Yitong Yin

Although multi-label learning can deal with many problems with label ambiguity, it does not fit some real applications well where the overall distribution of the importance of the labels matters. This paper proposes a novel learning…

机器学习 · 计算机科学 2016-04-06 Xin Geng

Most existing methods for object segmentation in computer vision are formulated as a labeling task. This, in general, could be transferred to a pixel-wise label assignment task, which is quite similar to the structure of hidden Markov…

计算机视觉与模式识别 · 计算机科学 2019-05-21 Shangxuan Wu , Xinshuo Weng

We present an adaptation of RNN sequence models to the problem of multi-label classification for text, where the target is a set of labels, not a sequence. Previous such RNN models define probabilities for sequences but not for sets;…

计算与语言 · 计算机科学 2019-04-12 Kechen Qin , Cheng Li , Virgil Pavlu , Javed A. Aslam

In the context of Bayesian inversion for scientific and engineering modeling, Markov chain Monte Carlo sampling strategies are the benchmark due to their flexibility and robustness in dealing with arbitrary posterior probability density…

统计计算 · 统计学 2021-12-07 Han Lu , Mohammad Khalil , Thomas Catanach , Jiefu Chen , Xuqing Wu , Xin Fu , Cosmin Safta , Yueqin Huang

We consider the problem of Bayesian inference for changepoints where the number and position of the changepoints are both unknown. In particular, we consider product partition models where it is possible to integrate out model parameters…

统计计算 · 统计学 2017-03-14 Alan Benson , Nial Friel

Multi-label classification (MLC) is the task of assigning a set of target labels for a given sample. Modeling the combinatorial label interactions in MLC has been a long-haul challenge. We propose Label Message Passing (LaMP) Neural…

机器学习 · 计算机科学 2019-04-18 Jack Lanchantin , Arshdeep Sekhon , Yanjun Qi

We consider the extreme multi-label text classification (XMC) problem: given an input text, return the most relevant labels from a large label collection. For example, the input text could be a product description on Amazon.com and the…

机器学习 · 计算机科学 2020-06-25 Wei-Cheng Chang , Hsiang-Fu Yu , Kai Zhong , Yiming Yang , Inderjit Dhillon

We introduce the BMRMM package implementing Bayesian inference for a class of Markov renewal mixed models which can characterize the stochastic dynamics of a collection of sequences, each comprising alternative instances of categorical…

统计方法学 · 统计学 2024-09-18 Yutong Wu , Abhra Sarkar