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In multi-goal Reinforcement Learning, an agent can share experience between related training tasks, resulting in better generalization for new tasks at test time. However, when the goal space has discontinuities and the reward is sparse, a…

机器学习 · 计算机科学 2023-05-03 Nicolas Castanet , Sylvain Lamprier , Olivier Sigaud

Machine learning and especially deep learning has had an increasing impact on molecule and materials design. In particular, given the growing access to an abundance of high-quality small molecule data for generative modeling for drug…

化学物理 · 物理学 2023-11-14 Shehtab Zaman , Denis Akhiyarov , Mauricio Araya-Polo , Kenneth Chiu

We introduce a novel score-based diffusion framework named Twigs that incorporates multiple co-evolving flows for enriching conditional generation tasks. Specifically, a central or trunk diffusion process is associated with a primary…

机器学习 · 计算机科学 2024-11-01 Giangiacomo Mercatali , Yogesh Verma , Andre Freitas , Vikas Garg

3D generative models have shown significant promise in structure-based drug design (SBDD), particularly in discovering ligands tailored to specific target binding sites. Existing algorithms often focus primarily on ligand-target binding,…

Constrained generative modeling is fundamental to applications such as robotic control and autonomous driving, where models must respect physical laws and safety-critical constraints. In real-world settings, these constraints rarely take…

机器学习 · 计算机科学 2026-03-10 Xiaoxuan Liang , Saeid Naderiparizi , Yunpeng Liu , Berend Zwartsenberg , Frank Wood

Diffusion models have emerged as powerful tools for high-quality image generation and editing, but guiding these models to produce specific outputs remains a challenge. Conventional approaches rely on conditioning mechanisms, such as text…

计算机视觉与模式识别 · 计算机科学 2026-05-27 Nithesh Chandher Karthikeyan , Jonas Unger , Gabriel Eilertsen

Scene graph generation (SGG) endeavors to predict visual relationships between pairs of objects within an image. Prevailing SGG methods traditionally assume a one-off learning process for SGG. This conventional paradigm may necessitate…

计算机视觉与模式识别 · 计算机科学 2024-01-29 Tao He , Tongtong Wu , Dongyang Zhang , Guiduo Duan , Ke Qin , Yuan-Fang Li

Photo-acid generators (PAGs) are compounds that release acids ($H^+$ ions) when exposed to light. These compounds are critical components of the photolithography processes that are used in the manufacture of semiconductor logic and memory…

机器学习 · 计算机科学 2021-12-06 Samuel C. Hoffman , Vijil Chenthamarakshan , Dmitry Yu. Zubarev , Daniel P. Sanders , Payel Das

Dynamic regression trees are an attractive option for automatic regression and classification with complicated response surfaces in on-line application settings. We create a sequential tree model whose state changes in time with the…

统计方法学 · 统计学 2010-11-23 Matthew A. Taddy , Robert B. Gramacy , Nicholas G. Polson

This work explores the challenging problem of molecule design by framing it as a conditional generative modeling task, where target biological properties or desired chemical constraints serve as conditioning variables. We propose the Latent…

The crux of molecular property prediction is to generate meaningful representations of the molecules. One promising route is to exploit the molecular graph structure through Graph Neural Networks (GNNs). It is well known that both atoms and…

定量方法 · 定量生物学 2020-06-15 Hehuan Ma , Yatao Bian , Yu Rong , Wenbing Huang , Tingyang Xu , Weiyang Xie , Geyan Ye , Junzhou Huang

We propose Partition Tree, a novel tree-based framework for conditional density estimation over general outcome spaces that supports both continuous and categorical variables within a unified formulation. Our approach models conditional…

机器学习 · 计算机科学 2026-05-13 Felipe Angelim , Alessandro Leite

We propose TD-GEN, a graph generation framework based on tree decomposition, and introduce a reduced upper bound on the maximum number of decisions needed for graph generation. The framework includes a permutation invariant tree generation…

机器学习 · 计算机科学 2022-02-24 Hamed Shirzad , Hossein Hajimirsadeghi , Amir H. Abdi , Greg Mori

Molecular design and synthesis planning are two critical steps in the process of molecular discovery that we propose to formulate as a single shared task of conditional synthetic pathway generation. We report an amortized approach to…

机器学习 · 计算机科学 2022-03-15 Wenhao Gao , Rocío Mercado , Connor W. Coley

A molecule's geometry, also known as conformation, is one of a molecule's most important properties, determining the reactions it participates in, the bonds it forms, and the interactions it has with other molecules. Conventional…

机器学习 · 计算机科学 2020-01-01 Elman Mansimov , Omar Mahmood , Seokho Kang , Kyunghyun Cho

Unconditional crystal structure generation with diffusion models faces challenges in identifying symmetric crystals as the unit cell size increases. We present the Crystal Host-Guided Generation (CHGGen) framework to address this challenge…

材料科学 · 物理学 2025-09-09 Peichen Zhong , Xinzhe Dai , Bowen Deng , Gerbrand Ceder , Kristin A. Persson

In recent years, deep generative models for graphs have been used to generate new molecules. These models have produced good results, leading to several proposals in the literature. However, these models may have troubles learning some of…

机器学习 · 计算机科学 2020-09-03 Davide Rigoni , Nicolò Navarin , Alessandro Sperduti

Generative models reliant on sequential autoregression have been at the forefront of language generation for an extensive period, particularly following the introduction of widely acclaimed transformers. Despite its excellent performance,…

计算与语言 · 计算机科学 2024-06-21 Yaguang Li , Xin Chen

Recent advances in Diffusion Probabilistic Models (DPMs) have set new standards in high-quality image synthesis. Yet, controlled generation remains challenging, particularly in sensitive areas such as medical imaging. Medical images feature…

计算机视觉与模式识别 · 计算机科学 2025-10-09 Sarah Cechnicka , Matthew Baugh , Weitong Zhang , Mischa Dombrowski , Zhe Li , Johannes C. Paetzold , Candice Roufosse , Bernhard Kainz

The discovery of inorganic crystal structures with targeted properties is a significant challenge in materials science. Generative models, especially state-of-the-art diffusion models, offer the promise of modeling complex data…