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Optimal transport has found widespread applications in signal processing and machine learning. Among its many equivalent formulations, optimal transport seeks to reconstruct a random variable/vector with a prescribed distribution at the…

信息论 · 计算机科学 2025-03-06 Jun Chen , Jia Wang , Ruibin Li , Han Zhou , Wei Dong , Huan Liu , Yuanhao Yu

In this study, a novel topology optimization approach based on conditional Wasserstein generative adversarial networks (CWGAN) is developed to replicate the conventional topology optimization algorithms in an extremely computationally…

机器学习 · 计算机科学 2019-01-16 Sharad Rawat , M. -H. Herman Shen

Even when aggregate accuracy is high, state-of-the-art NLP models often fail systematically on specific subgroups of data, resulting in unfair outcomes and eroding user trust. Additional data collection may not help in addressing these…

计算与语言 · 计算机科学 2023-05-30 Zexue He , Marco Tulio Ribeiro , Fereshte Khani

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

Model predictive control (MPC) is a popular approach for trajectory optimization in practical robotics applications. MPC policies can optimize trajectory parameters under kinodynamic and safety constraints and provide guarantees on safety,…

机器人学 · 计算机科学 2023-06-08 Returaj Burnwal , Anirban Santara , Nirav P. Bhatt , Balaraman Ravindran , Gaurav Aggarwal

Traffic prediction is one of the most significant foundations in Intelligent Transportation Systems (ITS). Traditional traffic prediction methods rely only on historical traffic data to predict traffic trends and face two main challenges.…

机器学习 · 计算机科学 2024-02-06 Chengyang Zhang , Yong Zhang , Qitan Shao , Bo Li , Yisheng Lv , Xinglin Piao , Baocai Yin

Controllable text generation (CTG) seeks to craft texts adhering to specific attributes, traditionally employing learning-based techniques such as training, fine-tuning, or prefix-tuning with attribute-specific datasets. These approaches,…

计算与语言 · 计算机科学 2024-06-17 Zijian Feng , Hanzhang Zhou , Zixiao Zhu , Kezhi Mao

Wang and Wang (2025) proposed the Task-Driven Fixation Network (TDFN) based on the fixation mechanism, which leverages low-resolution information along with high-resolution details near fixation points to accomplish specific visual tasks.…

计算机视觉与模式识别 · 计算机科学 2025-01-28 Shuguang Wang , Yuanjing Wang

Generative Adversarial Nets (GANs) are very successful at modeling distributions from given samples, even in the high-dimensional case. However, their formulation is also known to be hard to optimize and often not stable. While this is…

计算机视觉与模式识别 · 计算机科学 2018-03-30 Ishan Deshpande , Ziyu Zhang , Alexander Schwing

Point cloud compression significantly reduces data volume but sacrifices reconstruction quality, highlighting the need for advanced quality enhancement techniques. Most existing approaches focus primarily on point-to-point fidelity, often…

图像与视频处理 · 电气工程与系统科学 2025-03-04 Tian Guo , Hui Yuan , Qi Liu , Honglei Su , Raouf Hamzaoui , Sam Kwong

Generative adversarial networks (GANs) are the state of the art in generative modeling. Unfortunately, most GAN methods are susceptible to mode collapse, meaning that they tend to capture only a subset of the modes of the true distribution.…

机器学习 · 统计学 2019-07-10 Luca Ambrogioni , Umut Güçlü , Marcel van Gerven

Human mobility modeling from GPS-trajectories and synthetic trajectory generation are crucial for various applications, such as urban planning, disaster management and epidemiology. Both of these tasks often require filling gaps in a…

机器学习 · 计算机科学 2024-11-08 Shang-Ling Hsu , Emmanuel Tung , John Krumm , Cyrus Shahabi , Khurram Shafique

Precise modeling of microscopic vehicle trajectories is critical for traffic behavior analysis and autonomous driving systems. We propose Ctx2TrajGen, a context-aware trajectory generation framework that synthesizes realistic urban driving…

人工智能 · 计算机科学 2025-07-24 Joobin Jin , Seokjun Hong , Gyeongseon Baek , Yeeun Kim , Byeongjoon Noh

Tangent Model Composition (TMC) is a method to combine component models independently fine-tuned around a pre-trained point. Component models are tangent vectors to the pre-trained model that can be added, scaled, or subtracted to support…

机器学习 · 计算机科学 2023-10-03 Tian Yu Liu , Stefano Soatto

Intrusion Detection System (IDS) is often calibrated to known attacks and generalizes poorly to unknown threats. This paper proposes GMA-SAWGAN-GP, a novel generative augmentation framework built on a Self-Attention-enhanced Wasserstein GAN…

密码学与安全 · 计算机科学 2026-04-01 Ziyu Mu , Xiyu Shi , Safak Dogan

Compared with traditional design methods, generative design significantly attracts engineers in various disciplines. In thiswork, howto achieve the real-time generative design of optimized structures with various diversities and…

计算工程、金融与科学 · 计算机科学 2024-01-23 Zongliang Du , Xinyu Ma , Wenyu Hao , Yuan Liang , Xiaoyu Zhang , Hongzhi Luo , Xu Guo

Deep generative models can learn to generate realistic-looking images, but many of the most effective methods are adversarial and involve a saddlepoint optimization, which requires a careful balancing of training between a generator network…

机器学习 · 统计学 2020-02-18 Akash Srivastava , Kai Xu , Michael U. Gutmann , Charles Sutton

Probabilistic models with hierarchical-latent-variable structures provide state-of-the-art results amongst non-autoregressive, unsupervised density-based models. However, the most common approach to training such models based on Variational…

机器学习 · 统计学 2020-10-09 Benoit Gaujac , Ilya Feige , David Barber

Steering language generation towards objectives or away from undesired content has been a long-standing goal in utilizing language models (LM). Recent work has demonstrated reinforcement learning and weighted decoding as effective…

计算与语言 · 计算机科学 2022-12-22 Minbeom Kim , Hwanhee Lee , Kang Min Yoo , Joonsuk Park , Hwaran Lee , Kyomin Jung

In optimization, the negative gradient of a function denotes the direction of steepest descent. Furthermore, traveling in any direction orthogonal to the gradient maintains the value of the function. In this work, we show that these…

机器学习 · 计算机科学 2019-05-21 Ian Gemp , Sridhar Mahadevan