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Template-based molecular generation offers a promising avenue for drug design by ensuring generated compounds are synthetically accessible through predefined reaction templates and building blocks. In this work, we tackle three core…

This paper studies generative flow networks (GFlowNets) to sample objects from the Boltzmann energy distribution via a sequence of actions. In particular, we focus on improving GFlowNet with partial inference: training flow functions with…

机器学习 · 计算机科学 2023-10-06 Hyosoon Jang , Minsu Kim , Sungsoo Ahn

Reinforcement learning is a powerful technique to train an agent to perform a task. However, an agent that is trained using reinforcement learning is only capable of achieving the single task that is specified via its reward function. Such…

机器学习 · 计算机科学 2018-07-24 Carlos Florensa , David Held , Xinyang Geng , Pieter Abbeel

GFlowNets are a promising alternative to MCMC sampling for discrete compositional random variables. Training GFlowNets requires repeated evaluations of the unnormalized target distribution or reward function. However, for large-scale…

机器学习 · 计算机科学 2024-06-06 Tiago da Silva , Luiz Max Carvalho , Amauri Souza , Samuel Kaski , Diego Mesquita

The application of generative models for experimental drug discovery campaigns is severely limited by the difficulty of designing molecules de novo that can be synthesized in practice. Previous works have leveraged Generative Flow Networks…

We present two novel generative geometric deep learning frameworks, termed Flow Matching PointNet and Diffusion PointNet, for predicting fluid flow variables on irregular geometries by incorporating PointNet into flow matching and diffusion…

计算机视觉与模式识别 · 计算机科学 2026-01-13 Ali Kashefi

Single-step retrosynthesis aims to predict a set of reactions that lead to the creation of a target molecule, which is a crucial task in molecular discovery. Although a target molecule can often be synthesized with multiple different…

机器学习 · 计算机科学 2025-04-15 Piotr Gaiński , Michał Koziarski , Krzysztof Maziarz , Marwin Segler , Jacek Tabor , Marek Śmieja

Learning-based optical flow estimation has been dominated with the pipeline of cost volume with convolutions for flow regression, which is inherently limited to local correlations and thus is hard to address the long-standing challenge of…

计算机视觉与模式识别 · 计算机科学 2022-07-19 Haofei Xu , Jing Zhang , Jianfei Cai , Hamid Rezatofighi , Dacheng Tao

Graph neural networks (GNNs) are shown to be successful in modeling applications with graph structures. However, training an accurate GNN model requires a large collection of labeled data and expressive features, which might be inaccessible…

机器学习 · 计算机科学 2019-06-03 Ziniu Hu , Changjun Fan , Ting Chen , Kai-Wei Chang , Yizhou Sun

Order-Preserving (OP) GFlowNets have demonstrated remarkable success in tackling complex multi-objective (MOO) black-box optimization problems using stochastic optimization techniques. Specifically, they can be trained online to efficiently…

机器学习 · 计算机科学 2025-04-07 Lluís Pastor-Pérez , Javier Alonso-Garcia , Lukas Mauch

Training-free guidance enables pre-trained diffusion and flow models to optimize application-specific objectives using feedback from external black-box reward functions. However, existing methods are feedback-inefficient because reward…

机器学习 · 计算机科学 2026-05-19 Kim Yong Tan , Yueming Lyu , Ivor Tsang , Yew-Soon Ong

Efficiently identifying the right trajectories for training remains an open problem in GFlowNets. To address this, it is essential to prioritize exploration in regions of the state space where the reward distribution has not been…

机器学习 · 计算机科学 2025-10-23 Sajan Muhammad , Salem Lahlou

Recent studies suggest utilizing generative models instead of traditional auto-regressive algorithms for time series forecasting (TSF) tasks. These non-auto-regressive approaches involving different generative methods, including GAN,…

机器学习 · 计算机科学 2025-03-19 Jiangxuan Long , Zhao Song , Chiwun Yang

Recent advances have shown that video generation models can enhance robot learning by deriving effective robot actions through inverse dynamics. However, these methods heavily depend on the quality of generated data and struggle with…

机器人学 · 计算机科学 2025-08-18 Kelin Yu , Sheng Zhang , Harshit Soora , Furong Huang , Heng Huang , Pratap Tokekar , Ruohan Gao

While large language models (LLMs) are increasingly adapted for recommendation systems via supervised fine-tuning (SFT), this approach amplifies popularity bias due to its likelihood maximization objective, compromising recommendation…

信息检索 · 计算机科学 2025-05-13 Chongming Gao , Mengyao Gao , Chenxiao Fan , Shuai Yuan , Wentao Shi , Xiangnan He

Deep learning models have gained great success in many real-world applications. However, most existing networks are typically designed in heuristic manners, thus lack of rigorous mathematical principles and derivations. Several recent…

计算机视觉与模式识别 · 计算机科学 2017-12-18 Risheng Liu , Xin Fan , Shichao Cheng , Xiangyu Wang , Zhongxuan Luo

Building predictive models for tabular data presents fundamental challenges, notably in scaling consistently, i.e., more resources translating to better performance, and generalizing systematically beyond the training data distribution.…

We consider the problem of sampling from a discrete and structured distribution as a sequential decision problem, where the objective is to find a stochastic policy such that objects are sampled at the end of this sequential process…

机器学习 · 计算机科学 2024-05-29 Tristan Deleu , Padideh Nouri , Nikolay Malkin , Doina Precup , Yoshua Bengio

Generative Flow Networks (GFNs) have emerged as a powerful tool for sampling discrete objects from unnormalized distributions, offering a scalable alternative to Markov Chain Monte Carlo (MCMC) methods. While GFNs draw inspiration from…

机器学习 · 计算机科学 2025-02-24 Sobhan Mohammadpour , Emmanuel Bengio , Emma Frejinger , Pierre-Luc Bacon

Traditional discriminative computer vision relies predominantly on static projections, mapping input features to outputs in a single computational step. Although efficient, this paradigm lacks the iterative refinement and robustness…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Om Govind Jha , Manoj Bamniya , Ayon Borthakur