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Discrete choice models (DCM) are widely employed in travel demand analysis as a powerful theoretical econometric framework for understanding and predicting choice behaviors. DCMs are formed as random utility models (RUM), with their key…

机器学习 · 计算机科学 2023-06-02 Shadi Haj-Yahia , Omar Mansour , Tomer Toledo

World models enable robots to conduct counterfactual reasoning in physical environments by predicting future world states. While conventional approaches often prioritize pixel-level reconstruction of future scenes, such detailed rendering…

机器人学 · 计算机科学 2025-12-22 Zhiwei Zhang , Hui Zhang , Kaihong Huang , Chenghao Shi , Huimin Lu

Learning an effective speaker representation is crucial for achieving reliable performance in speaker verification tasks. Speech signals are high-dimensional, long, and variable-length sequences containing diverse information at each…

音频与语音处理 · 电气工程与系统科学 2023-08-25 Wei Xia , John H. L. Hansen

The development of autonomous web agents, powered by Large Language Models (LLMs) and reinforcement learning (RL), represents a significant step towards general-purpose AI assistants. However, training these agents is severely hampered by…

计算与语言 · 计算机科学 2026-04-21 Hang Ding , Peidong Liu , Junqiao Wang , Ziwei Ji , Meng Cao , Rongzhao Zhang , Lynn Ai , Eric Yang , Tianyu Shi , Lei Yu

Advanced model-based controllers are well established in process industries. However, such controllers require regular maintenance to maintain acceptable performance. It is a common practice to monitor controller performance continuously…

系统与控制 · 电气工程与系统科学 2020-04-14 Steven Spielberg , Aditya Tulsyan , Nathan P. Lawrence , Philip D Loewen , R. Bhushan Gopaluni

Deep reinforcement learning (DRL) provides a promising way for learning navigation in complex autonomous driving scenarios. However, identifying the subtle cues that can indicate drastically different outcomes remains an open problem with…

机器学习 · 计算机科学 2021-03-25 Xiaobai Ma , Jiachen Li , Mykel J. Kochenderfer , David Isele , Kikuo Fujimura

World models aim to learn action-controlled future prediction and have proven essential for the development of intelligent agents. However, most existing world models rely heavily on substantial action-labeled data and costly training,…

人工智能 · 计算机科学 2025-06-03 Shenyuan Gao , Siyuan Zhou , Yilun Du , Jun Zhang , Chuang Gan

Model-free Reinforcement Learning (RL) works well when experience can be collected cheaply and model-based RL is effective when system dynamics can be modeled accurately. However, both assumptions can be violated in real world problems such…

机器学习 · 计算机科学 2020-05-07 Mohak Bhardwaj , Ankur Handa , Dieter Fox , Byron Boots

Current autoregressive language models (ARMs) achieve high accuracy but require long token sequences, making them costly. Discrete diffusion language models (DDLMs) enable parallel and flexible generation within a fixed number of steps and…

计算与语言 · 计算机科学 2025-10-21 Lina Berrayana , Ahmed Heakl , Muhammad Abdullah Sohail , Thomas Hofmann , Salman Khan , Wei Chen

Generalized Disjunctive Programming (GDP) provides an alternative framework to model optimization problems with both discrete and continuous variables. The key idea behind GDP involves the use of logical disjunctions to represent discrete…

最优化与控制 · 数学 2020-01-20 Arnab Bhattacharya , Xu Ma , Draguna Vrabie

Learning a world model for model-free Reinforcement Learning (RL) agents can significantly improve the sample efficiency by learning policies in imagination. However, building a world model for Multi-Agent RL (MARL) can be particularly…

机器学习 · 计算机科学 2025-09-03 Yang Zhang , Chenjia Bai , Bin Zhao , Junchi Yan , Xiu Li , Xuelong Li

Text-based games provide an interactive way to study natural language processing. While deep reinforcement learning has shown effectiveness in developing the game playing agent, the low sample efficiency and the large action space remain to…

计算与语言 · 计算机科学 2022-04-22 Yunqiu Xu , Meng Fang , Ling Chen , Yali Du , Joey Tianyi Zhou , Chengqi Zhang

There is a growing demand for redirected walking (RDW) techniques and their application. To apply appropriate RDW methods and manipulation, the RDW controllers are predominantly used. There are three types of RDW controllers: direct…

机器学习 · 计算机科学 2021-10-14 Yuchen Chang , Keigo Matsumoto , Takuji Narumi , Tomohiro Tanikawa , Michitaka Hirose

This paper introduces the Deep Learning-based Nonlinear Model Predictive Controller with Scene Dynamics (DL-NMPC-SD) method for autonomous navigation. DL-NMPC-SD uses an a-priori nominal vehicle model in combination with a scene dynamics…

机器人学 · 计算机科学 2025-04-03 Sorin Grigorescu , Mihai Zaha

Effectively controlling systems governed by Partial Differential Equations (PDEs) is crucial in several fields of Applied Sciences and Engineering. These systems usually yield significant challenges to conventional control schemes due to…

机器学习 · 计算机科学 2024-11-07 Florian Wolf , Nicolò Botteghi , Urban Fasel , Andrea Manzoni

This paper introduces the concept of Language-Guided World Models (LWMs) -- probabilistic models that can simulate environments by reading texts. Agents equipped with these models provide humans with more extensive and efficient control,…

计算与语言 · 计算机科学 2024-09-06 Alex Zhang , Khanh Nguyen , Jens Tuyls , Albert Lin , Karthik Narasimhan

Reinforcement Learning (RL) offers promising solutions for control tasks in industrial cyber-physical systems (ICPSs), yet its real-world adoption remains limited. This paper demonstrates how seemingly small but well-designed modifications…

系统与控制 · 电气工程与系统科学 2025-03-27 Georg Schäfer , Tatjana Krau , Jakob Rehrl , Stefan Huber , Simon Hirlaender

Increasingly complex, non-linear World-Earth system models are used for describing the dynamics of the biophysical Earth system and the socio-economic and socio-cultural World of human societies and their interactions. Identifying pathways…

物理与社会 · 物理学 2020-09-16 Felix M. Strnad , Wolfram Barfuss , Jonathan F. Donges , Jobst Heitzig

World models based on video generation demonstrate remarkable potential for simulating interactive environments but face persistent difficulties in two key areas: maintaining long-term content consistency when scenes are revisited and…

计算机视觉与模式识别 · 计算机科学 2026-02-27 Tianxing Xu , Zixuan Wang , Guangyuan Wang , Li Hu , Zhongyi Zhang , Peng Zhang , Bang Zhang , Song-Hai Zhang

The capability of imagining internally with a mental model of the world is vitally important for human cognition. If a machine intelligent agent can learn a world model to create a "dream" environment, it can then internally ask what-if…

机器学习 · 计算机科学 2020-12-29 Minne Li , Mengyue Yang , Furui Liu , Xu Chen , Zhitang Chen , Jun Wang