Modeling spatial-temporal interactions among neighboring agents is at the heart of multi-agent problems such as motion forecasting and crowd navigation. Despite notable progress, it remains unclear to which extent modern representations can capture the causal relationships behind agent interactions. In this work, we take an in-depth look at the causal awareness of these representations, from computational formalism to real-world practice. First, we cast doubt on the notion of non-causal robustness studied in the recent CausalAgents benchmark. We show that recent representations are already partially resilient to perturbations of non-causal agents, and yet modeling indirect causal effects involving mediator agents remains challenging. To address this challenge, we introduce a metric learning approach that regularizes latent representations with causal annotations. Our controlled experiments show that this approach not only leads to higher degrees of causal awareness but also yields stronger out-of-distribution robustness. To further operationalize it in practice, we propose a sim-to-real causal transfer method via cross-domain multi-task learning. Experiments on pedestrian datasets show that our method can substantially boost generalization, even in the absence of real-world causal annotations. We hope our work provides a new perspective on the challenges and pathways towards causally-aware representations of multi-agent interactions. Our code is available at https://github.com/vita-epfl/CausalSim2Real.
Causally-informed Deep Learning towards Explainable and Generalizable Outcomes Prediction in Critical Care
Tsinghua University(清华大学);Institute of Brain and Cognitive Sciences, Tsinghua University(清华大学脑与认知科学研究院);Chinese PLA General Hospital(中国人民解放军总医院);Shanghai Artificial Intelligence Laboratory(上海人工智能实验室)
Università della Svizzera Italiana(瑞士意大利大学);University of Liechtenstein(利赫泰森大学);Politecnico di Torino(托尼诺理工学院);IBM Research(IBM研究院);Scuola Universitaria Professionale della Svizzera Italiana(瑞士意大利专业大学)
A Versatile Causal Discovery Framework to Allow Causally-Related Hidden Variables
University of California San Diego(加州大学圣地亚哥分校);Carnegie Mellon University(卡内基梅隆大学);Mohamed bin Zayed University of Artificial Intelligence(穆罕默德·本·扎耶德人工智能大学);KDDI Research(KDDI研究所)
Joint Laboratory of Data Science and Business Intelligence, School of Statistics, Southwestern University of Finance and Economics(西南财经大学统计学院数据科学与商务智能联合实验室);University of Kansas(堪萨斯大学);School of Computing and Artificial Intelligence, Southwest Jiaotong University(西南交通大学计算机与人工智能学院)
CaTs and DAGs: Integrating Directed Acyclic Graphs with Transformers for Causally Constrained Predictions
Kivira Health(Kivira健康公司);The Sense Innovation and Research Center, CHUV, Lausanne, Switzerland(The Sense创新与研究中心,CHUV,洛桑,瑞士);Centre for Vision, Speech and Signal Processing, University of Surrey, U.K.(视觉、语音和信号处理中心,萨里大学,英国);Institute of Psychology, University of Lausanne, Switzerland(心理学研究所,洛桑大学,瑞士);EPFL, Switzerland(瑞士联邦理工学院)
Causally Testing Gender Bias in LLMs: A Case Study on Occupational Bias
University of Illinois at Urbana-Champaign(伊利诺伊大学厄巴纳-香槟分校);Columbia University(哥伦比亚大学);RWTH Aachen(亚琛工业大学);University of Michigan(密歇根大学);ETH Zürich(苏黎世联邦理工学院);Max Planck Institute(马克斯·普朗克研究所)