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Discovering causal structure among a set of variables is a fundamental problem in many empirical sciences. Traditional score-based casual discovery methods rely on various local heuristics to search for a Directed Acyclic Graph (DAG)…

Machine Learning · Computer Science 2020-06-09 Shengyu Zhu , Ignavier Ng , Zhitang Chen

Reinforcement learning (RL) is an effective method of finding reasoning pathways in incomplete knowledge graphs (KGs). To overcome the challenges of a large action space, a self-supervised pre-training method is proposed to warm up the…

Computation and Language · Computer Science 2025-04-17 Ying Ma , Owen Burns , Mingqiu Wang , Gang Li , Nan Du , Laurent El Shafey , Liqiang Wang , Izhak Shafran , Hagen Soltau

Persistent homology, a technique from computational topology, has recently shown strong empirical performance in the context of graph classification. Being able to capture long range graph properties via higher-order topological features,…

Machine Learning · Computer Science 2024-12-20 Rubén Ballester , Bastian Rieck

Molecular property prediction (MPP) is a fundamental but challenging task in the computer-aided drug discovery process. More and more recent works employ different graph-based models for MPP, which have made considerable progress in…

Machine Learning · Computer Science 2023-12-29 Bangyi Zhao , Weixia Xu , Jihong Guan , Shuigeng Zhou

Graph representation learning (GRL) has evolved from topology-only graph embeddings to task-specific supervised GNNs, and more recently to reusable representations and graph foundation models (GFMs). However, existing evaluations mainly…

Machine Learning · Computer Science 2026-05-08 Xiaoguang Guo , Zehong Wang , Ziming Li , Shawn Spitzel , Soonwoo Kwon , Tianyi Ma , Yanfang Ye , Chuxu Zhang

We revisit the effectiveness of topological descriptors for molecular graph classification and design a simple, yet strong baseline. We demonstrate that a simple approach to feature engineering - employing histogram aggregation of edge…

Machine Learning · Computer Science 2024-07-24 Jakub Adamczyk , Wojciech Czech

Enhancing accurate molecular property prediction relies on effective and proficient representation learning. It is crucial to incorporate diverse molecular relationships characterized by multi-similarity (self-similarity and relative…

Machine Learning · Computer Science 2024-02-05 Hao Xu , Zhengyang Zhou , Pengyu Hong

Next-token prediction is the fundamental principle for training large language models (LLMs), and reinforcement learning (RL) further enhances their reasoning performance. As an effective way to model language, image, video, and other…

Computer Vision and Pattern Recognition · Computer Science 2025-05-27 Zuyao Chen , Jinlin Wu , Zhen Lei , Marc Pollefeys , Chang Wen Chen

Chemical language models, combined with reinforcement learning (RL), have shown significant promise to efficiently traverse large chemical spaces for drug discovery. However, the performance of various RL algorithms and their best practices…

Machine Learning · Computer Science 2025-11-06 Morgan Thomas , Albert Bou , Jose Carlos Gómez-Tamayo , Gary Tresadern , Mazen Ahmad , Gianni De Fabritiis

Trapped by the label scarcity in molecular property prediction and drug design, graph contrastive learning (GCL) came forward. Leading contrastive learning works show two kinds of view generators, that is, random or learnable data…

Machine Learning · Computer Science 2025-01-16 Xueyuan Chen , Shangzhe Li , Ruomei Liu , Bowen Shi , Jiaheng Liu , Junran Wu , Ke Xu

Robot assembly discovery is a challenging problem that lives at the intersection of resource allocation and motion planning. The goal is to combine a predefined set of objects to form something new while considering task execution with the…

Robotics · Computer Science 2022-08-03 Niklas Funk , Svenja Menzenbach , Georgia Chalvatzaki , Jan Peters

Existing studies show that node representations generated by graph neural networks (GNNs) are vulnerable to adversarial attacks, such as unnoticeable perturbations of adjacent matrix and node features. Thus, it is requisite to learn robust…

Machine Learning · Computer Science 2022-04-29 Jiayan Guo , Shangyang Li , Yue Zhao , Yan Zhang

Computational biology offers immense potential for reducing the high costs and protracted cycles of new drug development through adverse drug reaction (ADR) prediction. However, current methods remain impeded by drug data scarcity-induced…

Machine Learning · Computer Science 2026-01-06 Yuyan Pi , Min Jin , Wentao Xie , Xinhua Liu

Understanding and accurately predicting protein-ligand binding affinity are essential in the drug design and discovery process. At present, machine learning-based methodologies are gaining popularity as a means of predicting binding…

Biomolecules · Quantitative Biology 2023-01-18 Md Masud Rana , Duc Duy Nguyen

In recent years, Reinforcement Learning (RL) has emerged as a powerful tool for solving a wide range of problems, including decision-making and genomics. The exponential growth of raw genomic data over the past two decades has exceeded the…

Accurately predicting drug-target binding affinity (DTA) in silico is a key task in drug discovery. Most of the conventional DTA prediction methods are simulation-based, which rely heavily on domain knowledge or the assumption of having the…

Machine Learning · Computer Science 2020-04-06 Xuan Lin

Graph problems such as traveling salesman problem, or finding minimal Steiner trees are widely studied and used in data engineering and computer science. Typically, in real-world applications, the features of the graph tend to change over…

Machine Learning · Computer Science 2022-01-14 Udesh Gunarathna , Renata Borovica-Gajic , Shanika Karunasekara , Egemen Tanin

The topological information is essential for studying the relationship between nodes in a network. Recently, Network Representation Learning (NRL), which projects a network into a low-dimensional vector space, has been shown their…

Social and Information Networks · Computer Science 2019-02-19 Guoji Fu , Chengbin Hou , Xin Yao

Deep reinforcement learning (DRL) has been widely used in many important tasks of communication networks. In order to improve the perception ability of DRL on the network, some studies have combined graph neural networks (GNNs) with DRL,…

Cryptography and Security · Computer Science 2025-01-22 Xuzeng Li , Tao Zhang , Jian Wang , Zhen Han , Jiqiang Liu , Jiawen Kang , Dusit Niyato , Abbas Jamalipour

Recent advancements in generative models have established state-of-the-art benchmarks in the generation of molecules and novel drug candidates. Despite these successes, a significant gap persists between generative models and the…

Machine Learning · Computer Science 2024-10-10 Aditya Malusare , Vaneet Aggarwal