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New methods for time-to-event prediction are proposed by extending the Cox proportional hazards model with neural networks. Building on methodology from nested case-control studies, we propose a loss function that scales well to large data…

机器学习 · 统计学 2019-09-16 Håvard Kvamme , Ørnulf Borgan , Ida Scheel

The efficient calculation of rare-event kinetics in complex dynamical systems, such as the rate and pathways of ligand dissociation from a protein, is a generally unsolved problem. Markov state models can systematically integrate ensembles…

化学物理 · 物理学 2016-02-03 Benjamin Trendelkamp-Schroer , Frank Noe

tempdisagg is a modern, extensible, and production-ready Python framework for temporal disaggregation of time series data. It transforms low-frequency aggregates into consistent, high-frequency estimates using a wide array of econometric…

计量经济学 · 经济学 2025-03-31 Jaime Vera-Jaramillo

The Markov-modulated Poisson process is utilised for count modelling in a variety of areas such as queueing, reliability, network and insurance claims analysis. In this paper, we extend the Markov-modulated Poisson process framework through…

风险管理 · 定量金融 2020-08-06 Benjamin Avanzi , Greg Taylor , Bernard Wong , Alan Xian

We develop a model-based methodology for integrating gene-set information with an experimentally-derived gene list. The methodology uses a previously reported sampling model, but takes advantage of natural constraints in the…

统计方法学 · 统计学 2015-06-02 Zhishi Wang , Qiuling He , Bret Larget , Michael A. Newton

Simulation based or dynamic probabilistic risk assessment methodologies were primarily developed for proving a more realistic and complete representation of complex systems accident response. Such simulation based methodologies have proven…

系统与控制 · 电气工程与系统科学 2021-09-30 Parhizkar Tarannom , Mosleh Ali

Machine learning models play a vital role in the prediction task in several fields of study. In this work, we utilize the ability of machine learning algorithms to predict the occurrence of extreme events in a nonlinear mechanical system.…

机器学习 · 计算机科学 2021-12-03 J. Meiyazhagan , S. Sudharsan , A. Venkatasen , M. Senthilvelan

We present apricot, an open source Python package for selecting representative subsets from large data sets using submodular optimization. The package implements an efficient greedy selection algorithm that offers strong theoretical…

机器学习 · 计算机科学 2019-06-11 Jacob Schreiber , Jeffrey Bilmes , William Stafford Noble

Event mentions in text correspond to real-world events of varying degrees of granularity. The task of subevent detection aims to resolve this granularity issue, recognizing the membership of multi-granular events in event complexes. Since…

计算与语言 · 计算机科学 2021-09-15 Haoyu Wang , Hongming Zhang , Muhao Chen , Dan Roth

We seek to improve crowd counting as we perceive limits of currently prevalent density map estimation approach on both prediction accuracy and time efficiency. We leverage multilevel pixelation of density map as it helps improve SNR of…

计算机视觉与模式识别 · 计算机科学 2020-08-04 Zhuojun Chen , Junhao Cheng , Yuchen Yuan , Dongping Liao , Yizhou Li , Jiancheng Lv

Network meta-analysis (NMA) of rare events has attracted little attention in the literature. Until recently, networks of interventions with rare events were analyzed using the inverse-variance NMA approach. However, when events are rare the…

统计方法学 · 统计学 2021-09-22 Theodoros Evrenoglou , Ian White , Sivem Afach , Dimitris Mavridis , Anna Chaimani

Event attribution in the context of climate change seeks to understand the role of anthropogenic greenhouse gas emissions on extreme weather events, either specific events or classes of events. A common approach to event attribution uses…

统计方法学 · 统计学 2018-02-06 Christopher J. Paciorek , Dáithí A. Stone , Michael F. Wehner

Modeling of longitudinal cohort data typically involves complex temporal dependencies between multiple variables. There, the transformer architecture, which has been highly successful in language and vision applications, allows us to…

Nowadays, time series forecasting is predominantly approached through the end-to-end training of deep learning architectures using error-based objectives. While this is effective at minimizing average loss, it encourages the encoder to…

机器学习 · 计算机科学 2026-03-26 Jiacheng Wang , Liang Fan , Baihua Li , Luyan Zhang

Estimation of parameters that obey specific constraints is crucial in statistics and machine learning; for example, when parameters are required to satisfy boundedness, monotonicity, or linear inequalities. Traditional approaches impose…

统计方法学 · 统计学 2026-04-03 Lachlan Astfalck , Deborshee Sen , Sayan Patra , Edward Cripps , David Dunson

We consider the problem of model building for rare events prediction in longitudinal follow-up studies. In this paper, we compare several resampling methods to improve standard regression models on a real life example. We evaluate the…

统计方法学 · 统计学 2023-06-21 Pierre Druilhet , Mathieu Berthe , Stéphanie Léger

Meta-learning for few-shot learning entails acquiring a prior over previous tasks and experiences, such that new tasks be learned from small amounts of data. However, a critical challenge in few-shot learning is task ambiguity: even when a…

机器学习 · 计算机科学 2019-10-18 Chelsea Finn , Kelvin Xu , Sergey Levine

Large relational-event history data stemming from large networks are becoming increasingly available due to recent technological developments (e.g. digital communication, online databases, etc). This opens many new doors to learning about…

统计方法学 · 统计学 2024-02-28 Fabio Vieira Roger Leenders Joris Mulder

Massive sized survival datasets are becoming increasingly prevalent with the development of the healthcare industry. Such datasets pose computational challenges unprecedented in traditional survival analysis use-cases. A popular way for…

统计方法学 · 统计学 2023-05-09 Nir Keret , Malka Gorfine

One primary goal of human microbiome studies is to predict host traits based on human microbiota. However, microbial community sequencing data present significant challenges to the development of statistical methods. In particular, the…

统计方法学 · 统计学 2017-10-10 Tao Wang , Can Yang , Hongyu Zhao