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The goal of a generative model is to capture the distribution underlying the data, typically through latent variables. After training, these variables are often used as a new representation, more effective than the original features in a…

机器学习 · 计算机科学 2015-04-29 Maruan Al-Shedivat , Emre Neftci , Gert Cauwenberghs

Human activities increasingly take place in online environments, providing novel opportunities for relating individual behaviours to population-level outcomes. In this paper, we introduce a simple generative model for the collective…

物理与社会 · 物理学 2014-07-24 James P. Gleeson , Davide Cellai , Jukka-Pekka Onnela , Mason A. Porter , Felix Reed-Tsochas

Scenario-based probabilistic forecasts have become vital for decision-makers in handling intermittent renewable energies. This paper presents a recent promising deep learning generative approach called denoising diffusion probabilistic…

机器学习 · 计算机科学 2023-08-22 Esteban Hernandez Capel , Jonathan Dumas

The processes taking place inside the living cell are now understood to the point where predictive computational models can be used to gain detailed understanding of important biological phenomena. A key challenge is to extrapolate this…

组织与器官 · 定量生物学 2018-10-26 Stefan Engblom Daniel B. Wilson , Ruth E. Baker

Standard probabilistic models face fundamental challenges such as data scarcity, a large hypothesis space, and poor data transparency. To address these challenges, we propose a novel probabilistic model of data-driven temporal propositional…

人工智能 · 计算机科学 2025-07-08 Hiroyuki Kido

Particle dynamics and multi-agent systems provide accurate dynamical models for studying and forecasting the behavior of complex interacting systems. They often take the form of a high-dimensional system of differential equations…

机器学习 · 计算机科学 2023-08-09 Yuxuan Liu , Scott G. McCalla , Hayden Schaeffer

We propose a novel dynamic network model to capture evolving latent communities within temporal networks. To achieve this, we decompose each observed dynamic edge between vertices using a Poisson-gamma edge partition model, assigning each…

社会与信息网络 · 计算机科学 2024-11-19 Xincan Yu , Sikun Yang

A plant growth simulation can be characterized as a reconstructed visual representation of a plant or plant system. The phenotypic characteristics and plant structures are controlled by the scene environment and other contextual attributes.…

计算机视觉与模式识别 · 计算机科学 2024-09-23 Mohamed Debbagh , Yixue Liu , Zhouzhou Zheng , Xintong Jiang , Shangpeng Sun , Mark Lefsrud

Representation learning of static and more recently dynamically evolving graphs has gained noticeable attention. Existing approaches for modelling graph dynamics focus extensively on the evolution of individual nodes independently of the…

机器学习 · 计算机科学 2021-05-12 Simeon Spasov , Alessandro Di Stefano , Pietro Lio , Jian Tang

Neural Temporal Point Processes (TPPs) have emerged as the primary framework for predicting sequences of events that occur at irregular time intervals, but their sequential nature can hamper performance for long-horizon forecasts. To…

机器学习 · 计算机科学 2024-07-23 Mai Zeng , Florence Regol , Mark Coates

The paper describes the use of Bayesian regression for building time series models and stacking different predictive models for time series. Using Bayesian regression for time series modeling with nonlinear trend was analyzed. This approach…

应用统计 · 统计学 2022-01-07 Bohdan M. Pavlyshenko

Learning latent expression themes that best express complex patterns in a sample is a central problem in data mining and scientific research. For example, in computational biology we seek a set of salient gene expression themes that explain…

定量方法 · 定量生物学 2007-11-19 Edoardo M Airoldi , Stephen E Fienberg , Eric P Xing

In this paper we extend our previous work on the stochastic block model, a commonly used generative model for social and biological networks, and the problem of inferring functional groups or communities from the topology of the network. We…

统计力学 · 物理学 2013-05-09 Aurelien Decelle , Florent Krzakala , Cristopher Moore , Lenka Zdeborová

We analyze plankton-nutrient food chain models composed of phytoplankton, herbivorous zooplankton and a limiting nutrient. These models have played a key role in understanding the dynamics of plankton in the oceanic layer. Given the strong…

概率论 · 数学 2024-07-10 Alexandru Hening , Nguyen Trong Hieu , Dang Hai Nguyen , Nhu Ngoc Nguyen

This paper is devoted to a nonlocal dispersal logistic model with seasonal succession in one-dimensional bounded habitat, where the seasonal succession accounts for the effect of two different seasons. Firstly, we provide the…

偏微分方程分析 · 数学 2022-12-08 Zhenzhen Li , Binxiang Dai

The study of network data in the social and health sciences frequently concentrates on two distinct tasks (1) detecting community structures among nodes and (2) associating covariate information to edge formation. In much of this data, it…

统计方法学 · 统计学 2021-12-14 Heather Mathews , Alexander Volfovsky

This article presents a novel approach for learning low-dimensional distributed representations of users in online social networks. Existing methods rely on the network structure formed by the social relationships among users to extract…

社会与信息网络 · 计算机科学 2017-10-23 Harvineet Singh , Amitabha Bagchi , Parag Singla

We propose to learn a probabilistic motion model from a sequence of images for spatio-temporal registration. Our model encodes motion in a low-dimensional probabilistic space - the motion matrix - which enables various motion analysis tasks…

计算机视觉与模式识别 · 计算机科学 2021-02-02 Julian Krebs , Hervé Delingette , Nicholas Ayache , Tommaso Mansi

We present an information-theoretic approach inspired by distributional clustering to assess the structural heterogeneity of particulate systems. Our method identifies communities of particles that share a similar local structure by…

统计力学 · 物理学 2020-04-20 Joris Paret , Robert L. Jack , Daniele Coslovich

We propose a deep learning approach to probabilistic forecasting of macroeconomic and financial time series. Being able to learn complex patterns from a data rich environment, our approach is useful for a decision making that depends on…

综合经济学 · 经济学 2022-04-15 Jozef Barunik , Lubos Hanus