highway
- North America > United States > Massachusetts > Middlesex County > Cambridge (0.14)
- Europe > Switzerland > Zürich > Zürich (0.14)
- Asia > Middle East > Jordan (0.04)
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- Transportation (0.69)
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Altruistic Maneuver Planning for Cooperative Autonomous Vehicles Using Multi-agent Advantage Actor-Critic
Toghi, Behrad, Valiente, Rodolfo, Sadigh, Dorsa, Pedarsani, Ramtin, Fallah, Yaser P.
With the adoption of autonomous vehicles on our roads, we will witness a mixed-autonomy environment where autonomous and human-driven vehicles must learn to coexist by sharing the same road infrastructure. T o attain socially-desirable behaviors, autonomous vehicles must be instructed to consider the utility of other vehicles around them in their decision-making process. Particularly, we study the maneuver planning problem for autonomous vehicles and investigate how a decentralized reward structure can induce altruism in their behavior and incentivize them to account for the interest of other autonomous and human-driven vehicles. This is a challenging problem due to the ambiguity of a human driver's willingness to cooperate with an autonomous vehicle. Thus, in contrast with the existing works which rely on behavior models of human drivers, we take an end-to-end approach and let the autonomous agents to implicitly learn the decision-making process of human drivers only from experience. W e introduce a multi-agent variant of the synchronous Advantage Actor-Critic (A2C) algorithm and train agents that coordinate with each other and can affect the behavior of human drivers to improve traffic flow and safety.Accepted to 2021 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR 2021) W orkshop on Autonomous Driving: Perception, Prediction and Planning
- North America > United States > Florida > Orange County > Orlando (0.14)
- North America > United States > California > Santa Barbara County > Santa Barbara (0.14)
- Asia > Middle East > Republic of Türkiye > Karaman Province > Karaman (0.04)
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- Automobiles & Trucks (0.49)
- Transportation > Ground > Road (0.48)
- Information Technology > Robotics & Automation (0.34)
- Information Technology > Artificial Intelligence > Robots > Autonomous Vehicles (1.00)
- Information Technology > Artificial Intelligence > Representation & Reasoning > Agents (1.00)
- Information Technology > Artificial Intelligence > Issues > Social & Ethical Issues (0.93)
- Information Technology > Artificial Intelligence > Machine Learning > Neural Networks > Deep Learning (0.47)
From Real-World Traffic Data to Relevant Critical Scenarios
Lüttner, Florian, Neis, Nicole, Stadler, Daniel, Moss, Robin, Fehling-Kaschek, Mirjam, Pfriem, Matthias, Stolz, Alexander, Ziehn, Jens
The reliable operation of autonomous vehicles, automated driving functions, and advanced driver assistance systems across a wide range of relevant scenarios is critical for their development and deployment. Identifying a near-complete set of relevant driving scenarios for such functionalities is challenging due to numerous degrees of freedom involved, each affecting the outcomes of the driving scenario differently. Moreover, with increasing technical complexity of new functionalities, the number of potentially relevant, particularly "unknown unsafe" scenarios is increasing. To enhance validation efficiency, it is essential to identify relevant scenarios in advance, starting with simpler domains like highways before moving to more complex environments such as urban traffic. To address this, this paper focuses on analyzing lane change scenarios in highway traffic, which involve multiple degrees of freedom and present numerous safetyrelevant scenarios. We describe the process of data acquisition and processing of real-world data from public highway traffic, followed by the application of criticality measures on trajectory data to evaluate scenarios, as conducted within the AVEAS project (www.aveas.org). By linking the calculated measures to specific lane change driving scenarios and the conditions under which the data was collected, we facilitate the identification of safetyrelevant driving scenarios for various applications. Further, to tackle the extensive range of "unknown unsafe" scenarios, we propose a way to generate relevant scenarios by creating synthetic scenarios based on recorded ones. Consequently, we demonstrate and evaluate a processing chain that enables the identification of safety-relevant scenarios, the development of data-driven methods for extracting these scenarios, and the generation of synthetic critical scenarios via sampling on highways.
- Europe > Germany > Baden-Württemberg > Freiburg (0.04)
- North America > United States > Virginia (0.04)
- Europe > Romania (0.04)
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- Transportation > Ground > Road (1.00)
- Automobiles & Trucks (1.00)
OsmT: Bridging OpenStreetMap Queries and Natural Language with Open-source Tag-aware Language Models
Wan, Zhuoyue, Hu, Wentao, Zhang, Chen Jason, Song, Yuanfeng, Li, Shuaimin, Xiao, Ruiqiang, Wei, Xiao-Yong, Wong, Raymond Chi-Wing
Bridging natural language and structured query languages is a long-standing challenge in the database community. While recent advances in language models have shown promise in this direction, existing solutions often rely on large-scale closed-source models that suffer from high inference costs, limited transparency, and lack of adaptability for lightweight deployment. In this paper, we present OsmT, an open-source tag-aware language model specifically designed to bridge natural language and Overpass Query Language (OverpassQL), a structured query language for accessing large-scale OpenStreetMap (OSM) data. To enhance the accuracy and structural validity of generated queries, we introduce a Tag Retrieval Augmentation (TRA) mechanism that incorporates contextually relevant tag knowledge into the generation process. This mechanism is designed to capture the hierarchical and relational dependencies present in the OSM database, addressing the topological complexity inherent in geospatial query formulation. In addition, we define a reverse task, OverpassQL-to-Text, which translates structured queries into natural language explanations to support query interpretation and improve user accessibility. We evaluate OsmT on a public benchmark against strong baselines and observe consistent improvements in both query generation and interpretation. Despite using significantly fewer parameters, our model achieves competitive accuracy, demonstrating the effectiveness of open-source pre-trained language models in bridging natural language and structured query languages within schema-rich geospatial environments.
- Information Technology > Artificial Intelligence > Natural Language > Large Language Model (1.00)
- Information Technology > Artificial Intelligence > Natural Language > Chatbot (0.97)
- Information Technology > Artificial Intelligence > Machine Learning > Neural Networks > Deep Learning (0.96)
- Information Technology > Artificial Intelligence > Representation & Reasoning > Spatial Reasoning (0.68)
LargeST: A Benchmark Dataset for Large-Scale Traffic Forecasting
However, the promising results achieved on current public datasets may not be applicable to practical scenarios due to limitations within these datasets. First, the limited sizes of them may not reflect the real-world scale of traffic networks. Second, the temporal coverage of these datasets is typically short, posing hurdles in studying long-term patterns and acquiring sufficient samples for training deep models.
- Asia > Singapore (0.04)
- Asia > China > Hong Kong (0.04)
- Asia > China > Guangdong Province > Guangzhou (0.04)
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- Transportation > Infrastructure & Services (0.94)
- Government (0.68)
- Transportation > Ground > Road (0.47)
Are LLMs The Way Forward? A Case Study on LLM-Guided Reinforcement Learning for Decentralized Autonomous Driving
Anvar, Timur, Chen, Jeffrey, Wang, Yuyan, Chandra, Rohan
Are LLMs The W ay Forward? Abstract--Autonomous vehicle navigation in complex environments such as dense and fast-moving highways and merging scenarios remains an active area of research. In the past decade, many planning and control approaches have used reinforcement learning (RL) with notable success. However, a key limitation of RL is its reliance on well-specified reward functions, which often fail to capture the full semantic and social complexity of diverse, out-of-distribution situations. As a result, a rapidly growing line of research explores using Large Language Models (LLMs) to replace or supplement RL for direct planning and control, on account of their ability to reason about rich semantic context. However, LLMs present significant drawbacks: they can be unstable in zero-shot safety-critical settings, produce inconsistent outputs, and often depend on expensive API calls with network latency. This motivates our investigation into whether small, locally deployed LLMs ( 14B parameters) can meaningfully support autonomous highway driving through reward shaping rather than direct control. These models are attractive for practical deployment as they can run on a single GPU and avoid external API dependencies. We present a case study comparing RL-only, LLM-only, and hybrid approaches, where LLMs augment RL rewards by scoring state-action transitions during training, while standard RL policies execute at test time.
- North America > United States > Virginia (0.04)
- North America > United States > Maryland > Prince George's County > College Park (0.04)
- Automobiles & Trucks (0.91)
- Transportation > Ground > Road (0.91)
- Information Technology > Artificial Intelligence > Natural Language > Large Language Model (1.00)
- Information Technology > Artificial Intelligence > Machine Learning > Neural Networks > Deep Learning (0.68)
- Information Technology > Artificial Intelligence > Machine Learning > Learning Graphical Models > Undirected Networks > Markov Models (0.46)
- North America > United States > Pennsylvania > Allegheny County > Pittsburgh (0.04)
- Asia > Middle East > Jordan (0.04)
Waymo's Robotaxis Can Now Use the Highway, Speeding Up Longer Trips
Waymo's Robotaxis Can Now Use the Highway, Speeding Up Longer Trips The Alphabet company's self-driving cars are opening up shop in more and more cities. When Google's self-driving car project began testing in the Bay Area back in 2009, its engineers focused on highways by sending its sensor-laden vehicles cruising down Interstate 280, which runs the length of Silicon Valley's peninsula. More than 15 years later, the cars are back on the freeway--this time without drivers. On Tuesday, the project, now an Alphabet subsidiary we all know as Waymo, announced that its robotaxi service would now drive on freeways in the San Francisco Bay Area, Los Angeles, and Phoenix. The new service marks another technical leap for Waymo, whose robotaxis currently serve five US metros: Atlanta, Austin, Los Angeles, Phoenix, and the San Francisco Bay Area.
- North America > United States > California > San Francisco County > San Francisco (0.48)
- Pacific Ocean > North Pacific Ocean > San Francisco Bay (0.46)
- North America > United States > California > Los Angeles County > Los Angeles (0.46)
- (4 more...)
- Transportation > Ground > Road (1.00)
- Information Technology > Robotics & Automation (1.00)
- Automobiles & Trucks (1.00)
General Motors' 'Eyes-Off' System Begs the Question: What Happens When Cars Go AI?
General Motors' 'Eyes-Off' System Begs the Question: What Happens When Cars Go AI? General Motors' new self-driving system will let the driver speed down the highway without looking at the road. It's one of several features enabled by the adoption of machine intelligence in cars. A new self-driving system coming to Cadillac Escalades will handle the driving on approved highways, enabling the driver to do basically anything they want behind the wheel. General Motors is launching another salvo in the self-driving wars. In 2028, the automaker announced today, it will roll out what it's calling an "eyes-off" driving system on the electric Cadillac Escalade IQ.
- North America > United States > California (0.05)
- Europe > Slovakia (0.05)
- Europe > Czechia (0.05)
- Transportation > Passenger (1.00)
- Transportation > Ground > Road (1.00)
- Automobiles & Trucks > Manufacturer (1.00)
- Government > Regional Government > North America Government > United States Government (0.48)
- North America > United States > California > Los Angeles County > Los Angeles (0.04)
- Asia > Singapore (0.04)
- Asia > China > Hong Kong (0.04)
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- Transportation > Infrastructure & Services (0.94)
- Government (0.68)
- Transportation > Ground > Road (0.47)