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When learning to act in a stochastic, partially observable environment, an intelligent agent should be prepared to anticipate a change in its belief of the environment state, and be capable of adapting its actions on-the-fly to changing…

机器学习 · 计算机科学 2022-04-14 Ugo Lecerf , Christelle Yemdji-Tchassi , Pietro Michiardi

Log-Structured Merge trees (LSM trees) are increasingly used as the storage engines behind several data systems, frequently deployed in the cloud. Similar to other database architectures, LSM trees take into account information about the…

数据库 · 计算机科学 2021-11-04 Andy Huynh , Harshal A. Chaudhari , Evimaria Terzi , Manos Athanassoulis

In this research, a new data mining-based design approach has been developed for designing complex mechanical systems such as a crashworthy passenger car with uncertainty modeling. The method allows exploring the big crash simulation…

系统与控制 · 电气工程与系统科学 2021-07-14 Xianping Du , Binhui Jiang , Feng Zhu

Current state-of-the-art model-based reinforcement learning algorithms use trajectory sampling methods, such as the Cross-Entropy Method (CEM), for planning in continuous control settings. These zeroth-order optimizers require sampling a…

机器学习 · 计算机科学 2021-12-16 Kevin Huang , Sahin Lale , Ugo Rosolia , Yuanyuan Shi , Anima Anandkumar

Scaling training compute, measured in FLOPs, has long been shown to improve the accuracy of large language models, yet training remains resource-intensive. Prior work shows that increasing test-time compute (TTC)-for example through…

计算与语言 · 计算机科学 2026-01-06 Hossam Amer , Maryam Dialameh , Hossein Rajabzadeh , Walid Ahmed , Weiwei Zhang , Yang Liu

Autonomous driving in urban crowds at unregulated intersections is challenging, where dynamic occlusions and uncertain behaviors of other vehicles should be carefully considered. Traditional methods are heuristic and based on…

机器人学 · 计算机科学 2021-09-20 Peide Cai , Sukai Wang , Hengli Wang , Ming Liu

The proliferation of IoT and mobile devices equipped with heterogeneous sensors has enabled new applications that rely on the fusion of time-series data generated by multiple sensors with different modalities. While there are promising deep…

机器学习 · 计算机科学 2023-03-09 Sanju Xaviar , Xin Yang , Omid Ardakanian

Accurately predicting the trajectory of surrounding vehicles is a critical challenge for autonomous vehicles. In complex traffic scenarios, there are two significant issues with the current autonomous driving system: the cognitive…

机器人学 · 计算机科学 2024-09-25 Wen Wei , Jiankun Wang

An effective way to scale up test-time compute of large language models is to sample multiple responses and then select the best one, as in Grok Heavy and Gemini Deep Think. Existing selection methods often rely on external reward models,…

机器学习 · 计算机科学 2026-05-04 Wenshuo Zhao , Qi Zhu , Xingshan Zeng , Fei Mi , Lifeng Shang , Yi R. , Fung

Autonomous driving technology is progressing rapidly, largely due to complex End To End systems based on deep neural networks. While these systems are effective, their complexity can make it difficult to understand their behavior, raising…

机器人学 · 计算机科学 2024-12-24 Iqra Aslam , Igor Anpilogov , Andreas Rausch

Driving safety is a top priority for autonomous vehicles. Orthogonal to prior work handling accident-prone traffic events by algorithm designs at the policy level, we investigate a Closed-loop Adversarial Training (CAT) framework for safe…

机器学习 · 计算机科学 2023-10-20 Linrui Zhang , Zhenghao Peng , Quanyi Li , Bolei Zhou

High-speed trajectory planning through unknown environments requires algorithmic techniques that enable fast reaction times while maintaining safety as new information about the operating environment is obtained. The requirement of…

机器人学 · 计算机科学 2020-05-15 Jesus Tordesillas , Brett T. Lopez , Jonathan P. How

Uncertainty in decision-making is crucial in the machine learning model used for a safety-critical system that operates in the real world. Therefore, it is important to handle uncertainty in a graceful manner for the safe operation of the…

机器学习 · 计算机科学 2023-03-16 Akash Fogla , Kanish Kumar , Sunnay Saurav , Bishnu ramanujan

Autonomous cars have to navigate in dynamic environment which can be full of uncertainties. The uncertainties can come either from sensor limitations such as occlusions and limited sensor range, or from probabilistic prediction of other…

机器人学 · 计算机科学 2019-05-06 Liting Sun , Wei Zhan , Ching-Yao Chan , Masayoshi Tomizuka

We present an approach for safe trajectory planning, where a strategic task related to autonomous racing is learned sample-efficient within a simulation environment. A high-level policy, represented as a neural network, outputs a reward…

机器人学 · 计算机科学 2022-12-06 Rudolf Reiter , Jasper Hoffmann , Joschka Boedecker , Moritz Diehl

End-to-end autonomous driving is a fully differentiable machine learning system that takes raw sensor input data and other metadata as prior information and directly outputs the ego vehicle's control signals or planned trajectories. This…

机器人学 · 计算机科学 2023-12-01 Apoorv Singh

Robust controllers ensure stability in feedback loops designed under uncertainty but at the cost of performance. Model uncertainty in time-invariant systems can be reduced by recently proposed learning-based methods, which improve the…

系统与控制 · 电气工程与系统科学 2023-01-18 Alexander von Rohr , Friedrich Solowjow , Sebastian Trimpe

This work presents a novel data-driven multi-layered planning and control framework for the safe navigation of a class of unmanned ground vehicles (UGVs) in the presence of unknown stationary obstacles and additive modeling uncertainties.…

机器人学 · 计算机科学 2024-03-06 Skylar X. Wei , Lu Gan , Joel W. Burdick

Autonomous vehicles are controlled today either based on sequences of decoupled perception-planning-action operations, either based on End2End or Deep Reinforcement Learning (DRL) systems. Current deep learning solutions for autonomous…

机器人学 · 计算机科学 2019-06-27 Sorin Grigorescu , Bogdan Trasnea , Liviu Marina , Andrei Vasilcoi , Tiberiu Cocias

Imitation learning is a promising approach to end-to-end training of autonomous vehicle controllers. Typically the driving process with such approaches is entirely automatic and black-box, although in practice it is desirable to control the…

机器人学 · 计算机科学 2020-11-23 Renhao Wang , Adam Scibior , Frank Wood