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Model-based reinforcement learning (MBRL) has shown its advantages in sample-efficiency over model-free reinforcement learning (MFRL). Despite the impressive results it achieves, it still faces a trade-off between the ease of data…

Machine Learning · Computer Science 2020-06-17 Xiaoyu Tan , Chao Qu , Junwu Xiong , James Zhang

Energy-based models (EBMs) offer a flexible framework for parameterizing probability distributions using neural networks. However, learning EBMs by exact maximum likelihood estimation (MLE) is generally intractable, due to the need to…

Machine Learning · Computer Science 2025-08-20 Michael E. Sander , Vincent Roulet , Tianlin Liu , Mathieu Blondel

Machine learning is a vital part of many real-world systems, but several concerns remain about the lack of interpretability, explainability and robustness of black-box AI systems. Concept Bottleneck Models (CBM) address some of these…

Machine Learning · Statistics 2025-10-24 Hidde Fokkema , Tim van Erven , Sara Magliacane

Contrastive Learning (CL) has recently emerged as a powerful technique in recommendation systems, particularly for its capability to harness self-supervised signals from perturbed views to mitigate the persistent challenge of data sparsity.…

Information Retrieval · Computer Science 2025-04-08 Zheyu Chen , Jinfeng Xu , Yutong Wei , Ziyue Peng

Energy-Based Models (EBMs) assign unnormalized log-probability to data samples. This functionality has a variety of applications, such as sample synthesis, data denoising, sample restoration, outlier detection, Bayesian reasoning, and many…

Machine Learning · Statistics 2019-12-23 Zengyi Li , Yubei Chen , Friedrich T. Sommer

Contrastive learning (CL) is a prevalent technique for training embedding models, which pulls semantically similar examples (positives) closer in the representation space while pushing dissimilar ones (negatives) further apart. A key source…

Computer Vision and Pattern Recognition · Computer Science 2025-10-27 Raghuveer Thirukovalluru , Rui Meng , Ye Liu , Karthikeyan K , Mingyi Su , Ping Nie , Semih Yavuz , Yingbo Zhou , Wenhu Chen , Bhuwan Dhingra

Decoding neural visual representations from electroencephalogram (EEG)-based brain activity is crucial for advancing brain-machine interfaces (BMI) and has transformative potential for neural sensory rehabilitation. While multimodal…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Yueyang Li , Zijian Kang , Shengyu Gong , Wenhao Dong , Weiming Zeng , Hongjie Yan , Wai Ting Siok , Nizhuan Wang

Reinforcement learning (RL) solves sequential decision-making problems via a trial-and-error process interacting with the environment. While RL achieves outstanding success in playing complex video games that allow huge trial-and-error,…

Machine Learning · Computer Science 2022-06-22 Fan-Ming Luo , Tian Xu , Hang Lai , Xiong-Hui Chen , Weinan Zhang , Yang Yu

Multimodal representation learning has been largely driven by contrastive models such as CLIP, which learn a shared embedding space by aligning paired image-text samples. While effective for general-purpose representation learning, such…

Machine Learning · Computer Science 2026-05-12 Yang Qiao , Yuntong Hu , Bowen Zhu , Hasibul Haque , Liang Zhao

The deep reinforcement learning-based energy management strategies (EMS) have become a promising solution for hybrid electric vehicles (HEVs). When driving cycles are changed, the neural network will be retrained, which is a time-consuming…

Machine Learning · Computer Science 2022-04-21 Jingyi Xu , Zirui Li , Li Gao , Junyi Ma , Qi Liu , Yanan Zhao

Prevailing methods for training Large Language Models (LLMs) as text encoders rely on contrastive losses that treat the model as a black box function, discarding its generative and reasoning capabilities in favor of static embeddings. We…

Computation and Language · Computer Science 2025-10-07 Jiashuo Sun , Shixuan Liu , Zhaochen Su , Xianrui Zhong , Pengcheng Jiang , Bowen Jin , Peiran Li , Weijia Shi , Jiawei Han

Energy-based models (EBMs) provide a powerful and flexible way of learning a joint probability distribution over data by constructing an energy surface. This energy surface enables insight extraction and conditional sampling. We apply EBMs…

Plasma Physics · Physics 2026-05-12 Phil Travis , Troy Carter

Extracting generalized and robust representations is a major challenge in emotion recognition in conversations (ERC). To address this, we propose a supervised adversarial contrastive learning (SACL) framework for learning class-spread…

Computation and Language · Computer Science 2023-07-11 Dou Hu , Yinan Bao , Lingwei Wei , Wei Zhou , Songlin Hu

Green buildings (GBs) with renewable energy and building energy management systems (BEMS) enable efficient energy use and support sustainable development. Electric vehicles (EVs), as flexible storage resources, enhance system flexibility…

Systems and Control · Electrical Eng. & Systems 2025-06-24 Chi Liu , Zhezhuang Xu , Jiawei Zhou , Yazhou Yuan , Kai Ma , Meng Yuan

Multimodal learning for generative models often refers to the learning of abstract concepts from the commonality of information in multiple modalities, such as vision and language. While it has proven effective for learning generalisable…

Machine Learning · Computer Science 2021-04-22 Yuge Shi , Brooks Paige , Philip H. S. Torr , N. Siddharth

Energy-based models (EBMs) are powerful probabilistic models, but suffer from intractable sampling and density evaluation due to the partition function. As a result, inference in EBMs relies on approximate sampling algorithms, leading to a…

Machine Learning · Computer Science 2020-01-10 Dieterich Lawson , George Tucker , Bo Dai , Rajesh Ranganath

Context, the embedding of previous collected trajectories, is a powerful construct for Meta-Reinforcement Learning (Meta-RL) algorithms. By conditioning on an effective context, Meta-RL policies can easily generalize to new tasks within a…

Machine Learning · Computer Science 2020-12-16 Haotian Fu , Hongyao Tang , Jianye Hao , Chen Chen , Xidong Feng , Dong Li , Wulong Liu

Video understanding plays a fundamental role for content moderation on short video platforms, enabling the detection of inappropriate content. While classification remains the dominant approach for content moderation, it often struggles in…

Information Retrieval · Computer Science 2025-07-03 Hanzhong Liang , Jinghao Shi , Xiang Shen , Zixuan Wang , Vera Wen , Ardalan Mehrani , Zhiqian Chen , Yifan Wu , Zhixin Zhang

Deep reinforcement learning (RL), where the agent learns from mistakes, has been successfully applied to a variety of tasks. With the aim of learning collision-free policies for unmanned vehicles, deep RL has been used for training with…

Multi-label image classification presents a challenging task in many domains, including computer vision and medical imaging. Recent advancements have introduced graph-based and transformer-based methods to improve performance and capture…

Computer Vision and Pattern Recognition · Computer Science 2024-04-15 Ahmad Sajedi , Samir Khaki , Yuri A. Lawryshyn , Konstantinos N. Plataniotis