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Autonomous vehicles (AVs) rely on environment perception and behavior prediction to reason about agents in their surroundings. These perception systems must be robust to adverse weather such as rain, fog, and snow. However, validation of…

Robotics · Computer Science 2022-03-29 Harrison Delecki , Masha Itkina , Bernard Lange , Ransalu Senanayake , Mykel J. Kochenderfer

Knowledge graphs (KGs) serve as powerful tools for organizing and representing structured knowledge. While their utility is widely recognized, challenges persist in their automation and completeness. Despite efforts in automation and the…

Artificial Intelligence · Computer Science 2024-05-07 Mutahira Khalid , Raihana Rahman , Asim Abbas , Sushama Kumari , Iram Wajahat , Syed Ahmad Chan Bukhari

Testing and validating Autonomous Vehicle (AV) performance in safety-critical and diverse scenarios is crucial before real-world deployment. However, manually creating such scenarios in simulation remains a significant and time-consuming…

Robotics · Computer Science 2025-09-29 Efimia Panagiotaki , Georgi Pramatarov , Lars Kunze , Daniele De Martini

We study multi-agent reinforcement learning (MARL) for tasks in complex high-dimensional environments, such as autonomous driving. MARL is known to suffer from the \textit{partial observability} and \textit{non-stationarity} issues. To…

Robotics · Computer Science 2025-06-11 Hang Wang , Dechen Gao , Junshan Zhang

Automated driving vehicles~(ADV) promise to enhance driving efficiency and safety, yet they face intricate challenges in safety-critical scenarios. As a result, validating ADV within generated safety-critical scenarios is essential for both…

Machine Learning · Computer Science 2023-11-21 Kunkun Hao , Lu Liu , Wen Cui , Jianxing Zhang , Songyang Yan , Yuxi Pan , Zijiang Yang

Global navigation information and local scene understanding are two crucial components of autonomous driving systems. However, our experimental results indicate that many end-to-end autonomous driving systems tend to over-rely on local…

Robotics · Computer Science 2026-04-15 Zhihua Hua , Junli Wang , Pengfei LI , Qihao Jin , Bo Zhang , Kehua Sheng , Yilun Chen , Zhongxue Gan , Wenchao Ding

An efficient and reliable multi-agent decision-making system is highly demanded for the safe and efficient operation of connected autonomous vehicles in intelligent transportation systems. Current researches mainly focus on the Deep…

Robotics · Computer Science 2022-02-01 Qi Liu , Zirui Li , Xueyuan Li , Jingda Wu , Shihua Yuan

The connectivity aspect of connected autonomous vehicles (CAV) is beneficial because it facilitates dissemination of traffic-related information to vehicles through Vehicle-to-External (V2X) communication. Onboard sensing equipment…

Artificial Intelligence · Computer Science 2020-10-01 Jiqian Dong , Sikai Chen , Yujie Li , Runjia Du , Aaron Steinfeld , Samuel Labi

Automatic modulation classification (AMC) is a promising technology to realize intelligent wireless communications in the sixth generation (6G) wireless communication networks. Recently, many data-and-knowledge dual-driven AMC schemes have…

Signal Processing · Electrical Eng. & Systems 2024-03-04 Yike Li , Lu Yua , Fuhui Zhou , Qihui Wu , Naofal Al-Dhahir , Kai-Kit Wong

Knowledge Graphs (KGs) have emerged as fundamental platforms for powering intelligent decision-making and a wide range of Artificial Intelligence (AI) services across major corporations such as Google, Walmart, and AirBnb. KGs complement…

Artificial Intelligence · Computer Science 2023-11-01 Luis-Daniel Ibáñez , John Domingue , Sabrina Kirrane , Oshani Seneviratne , Aisling Third , Maria-Esther Vidal

Foundation models excel at language, where sentences become tokens, and vision, where images become pixels, because both reduce to discrete symbols on a shared, fixed grid. Knowledge Graphs share the discreteness, but not the geometry.…

Artificial Intelligence · Computer Science 2026-05-08 Kossi Amouzouvi , Robert Wardenga , Jens Lehmann , Sahar Vahdati

Visual Question Answering (VQA) systems are tasked with answering natural language questions corresponding to a presented image. Traditional VQA datasets typically contain questions related to the spatial information of objects, object…

Computation and Language · Computer Science 2020-06-05 Goonmeet Bajaj , Bortik Bandyopadhyay , Daniel Schmidt , Pranav Maneriker , Christopher Myers , Srinivasan Parthasarathy

Vision sensors are versatile and can capture a wide range of visual cues, such as color, texture, shape, and depth. This versatility, along with the relatively inexpensive availability of machine vision cameras, played an important role in…

Computer Vision and Pattern Recognition · Computer Science 2024-04-18 Muhammad Z. Alam , Zeeshan Kaleem , Sousso Kelouwani

Since the advent of autonomous driving technology, it has experienced remarkable progress over the last decade. However, most existing research still struggles to address the challenges posed by environments where multiple vehicles have to…

Multiagent Systems · Computer Science 2025-08-01 Jing Wang , Yan Jin , Fei Ding , Chongfeng Wei

The recently developed retrieval-augmented generation (RAG) technology has enabled the efficient construction of domain-specific applications. However, it also has limitations, including the gap between vector similarity and the relevance…

Connected and automated vehicles (CAVs) have attracted more and more attention recently. The fast actuation time allows them having the potential to promote the efficiency and safety of the whole transportation system. Due to technical…

Machine Learning · Statistics 2021-10-26 Tianyu Shi , Jiawei Wang , Yuankai Wu , Luis Miranda-Moreno , Lijun Sun

The increasing demand for robust security solutions across various industries has made Video Anomaly Detection (VAD) a critical task in applications such as intelligent surveillance, evidence investigation, and violence detection.…

Machine Learning · Computer Science 2025-01-15 Sanggeon Yun , Ryozo Masukawa , William Youngwoo Chung , Minhyoung Na , Nathaniel Bastian , Mohsen Imani

Knowledge graph-based dialogue systems can narrow down knowledge candidates for generating informative and diverse responses with the use of prior information, e.g., triple attributes or graph paths. However, most current knowledge graph…

Computation and Language · Computer Science 2020-04-21 Hongcai Xu , Junpeng Bao , Junqing Wang

Robots performing human-scale manipulation tasks require an extensive amount of knowledge about their surroundings in order to perform their actions competently and human-like. In this work, we investigate the use of virtual reality…

Robotics · Computer Science 2023-10-30 Giang Hoang Nguyen , Daniel Bessler , Simon Stelter , Mihai Pomarlan , Michael Beetz

Retrieval-augmented generation (RAG) enables large language models (LLMs) to dynamically access external information, which is powerful for answering questions over previously unseen documents. Nonetheless, they struggle with high-level…

Artificial Intelligence · Computer Science 2026-04-21 Chi-Hsiang Hsiao , Yi-Cheng Wang , Tzung-Sheng Lin , Yi-Ren Yeh , Chu-Song Chen