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arXiv research

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169,341 papers · 148 categories

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48 results for Vehicle Routing Problem

New machine learning pipeline solves dynamic vehicle routing problems efficiently.

problem Efficiently handling same day deliveries in e-commerce logistics.
method Combination of machine learning and combinatorial optimization.
result Ranked first in the EURO Meets NeurIPS Vehicle Routing Competition.

DPDP combines neural heuristics with DP for vehicle routing problems.

problem Vehicle routing problems with large scale.
method Deep Policy Dynamic Programming (DPDP) that uses a neural network policy to prioritize and restrict the DP state space.
result DPDP improves upon classical DP algorithms and outperforms neural approaches for TSP, VRP, and TSPTW.

A framework for reinforcement learning tackles CVRP with competitive results.

problem Optimizing routes for vehicles with limited capacity.
method Formulates action selection as a mixed-integer optimization problem, uses policy iteration to improve policies.
result Achieves an average gap of 1.7% with state-of-the-art OR methods on CVRP instances.

New system assigns vehicles to routes for cost and energy efficiency.

problem Optimizing vehicle route assignment for cost and energy efficiency.
method Machine learning-based neural network algorithm to estimate energy consumption and provide real-time recommendations.
result Demonstrated efficient vehicle assignment for medium and heavy duty trucks.

A new dynamic attention model improves vehicle routing problem solutions.

problem Vehicle routing problems (VRP) are NP-hard and challenging to solve.
method Dynamic attention model with a dynamic encoder-decoder architecture.
result The model outperforms previous methods and shows good generalization.

NeuRewriter learns to choose and rewrite heuristics in combinatorial problems.

problem Time-consuming tuning of heuristics in combinatorial optimization.
method NeuRewriter uses reinforcement learning to learn a policy for picking heuristics and rewriting solutions.
result NeuRewriter outperforms existing methods in various combinatorial tasks.

Equity-Transformer solves NP-hard min-max routing problems efficiently.

problem Min-max routing problems with multiple agents and large-scale applications.
method Sequential planning approach with Transformer and equitable workload distribution inductive biases.
result Significant runtime and cost reductions in min-max mTSP and min-max mPDP tasks.

Improves heuristics for routing problems using attention models.

problem Improving heuristics for combinatorial optimization problems, especially for routing problems.
method Proposed a model based on attention layers and trained it using REINFORCE with a simple greedy rollout.
result Significantly improved results for TSP and other routing problems, close to optimal or specialized algorithms.

SECRM-2D improves RL-based autonomous driving with safety guarantees.

problem Safety and efficiency trade-offs in RL-based autonomous driving.
method RL-based controller with safety constraints for efficient and comfortable driving.
result SECRM-2D avoids crashes and improves efficiency and comfort compared to baselines.

Predicts destinations and routes from partial trajectory data.

problem Predicting destinations and routes from partial trajectory data for applications like parking suggestions and ride-sharing.
method Three-step procedure: k-d tree-based space discretization, recurrent neural network for destination prediction, and route calculation.
result Best models predict destinations with a mean error of 1.3 km and 1.43 km.

Two DRL policies collaborate to solve NP-hard routing problems.

problem Solving complex routing problems like TSP without expert knowledge.
method Learning Collaborative Policies (LCP) using seeder and reviser policies.
result Improves solution quality over single-policy DRL on various NP-hard routing problems.

Sym-NCO leverages symmetricities to improve DRL-NCO performance.

problem Improving neural combinatorial optimization methods.
method Sym-NCO is a regularizer-based training scheme that exploits universal symmetricities in CO problems and solutions.
result Sym-NCO significantly improves DRL-NCO performance across various CO tasks.

A novel controller for wheeled robots handles joystick inputs for smooth steering.

problem Steering control for differential-drive wheeled robots from indirect joystick inputs.
method Developed a geometric controller based on Darboux frame kinematics.
result Smooth trajectories achieved with safety constraints and no desired states.

Deep Q-learning optimizes same-day delivery with vehicles and drones.

problem Optimizing same-day delivery with limited vehicle and drone capacities.
method Deep Q-learning approach to assign packages to vehicles or drones.
result Deep Q-learning policy outperforms benchmark policies and maintains effectiveness with changing fleet sizes.

This research optimizes handover between fog nodes in vehicular IoT using machine learning.

problem Smooth transition of device connections and offloaded tasks between fog nodes in vehicular IoT.
method Proposes a three-layer feed-forward neural network and a dual stacked RNN with LSTM cells to predict fog nodes and minimize service interruption.
result Achieved 99.2% accuracy in predicting fog nodes with a test set.

Proposes a new model for predicting future motion of road actors in autonomous vehicles.

problem Forecasting the long-term future motion of road actors for safe autonomous driving.
method Recurrent graph-based attentional approach with interpretable geometric and social relationships.
result Can produce diverse predictions conditioned on hypothetical or 'what-if' scenarios.

Deep learning and prior maps improve traffic light recognition for autonomous cars.

problem Recognizing traffic lights for autonomous cars in urban environments.
method Combining deep learning-based detection with prior maps for traffic light identification and state recognition.
result The proposed system correctly identified relevant traffic lights along predefined routes.

A new router uses attention-based reinforcement learning to solve detailed routing problems efficiently.

problem Solving detailed routing in integrated circuits while adhering to complex design rules.
method Attention-based reinforcement learning applied to track-assignment detailed routing.
result The attention router achieves over 100x acceleration compared to a genetic router without sacrificing solution quality.

End-to-end driving network learns navigation and localization from raw data.

problem Lack of full action distribution and localization in end-to-end autonomous driving.
method Variational network for predicting control commands and deterministic navigation, probabilistic localization using noisy GPS.
result Model can predict full probability distribution over possible actions and navigate routes.

A new approach integrates inventory prediction and routing optimization for better supply chain management.

problem Optimizing efficient route selection in supply chain management with uncertain inventory demand.
method Decision-focused learning approach using neural networks to directly integrate inventory prediction and routing optimization.
result Direct integration of inventory prediction and routing optimization leads to better supply chain decisions.

Proposes CPO framework for robust decision-making with explainable uncertainty regions.

problem Overly conservative uncertainty regions in data-driven optimization lead to suboptimal decisions.
method Conformal-Predict-Then-Optimize (CPO) framework using conditional generative models and visual summaries.
result Demonstrates improved robustness and explainability in decision-making.

Acoustic sensors identify vehicles using spectral embedding.

problem Vehicle recognition from roadside audio sensors.
method Extract frequency signatures, apply spectral embedding for dimensionality reduction.
result K-nearest neighbors achieve accurate vehicle identification after dimensionality reduction.

Adaptive stress testing for autonomous vehicles identifies failure scenarios using reinforcement learning.

problem Identifying potential failure scenarios in autonomous vehicle decision-making systems.
method Formulated as a Markov decision process, used reinforcement learning (DRL) to find likely failure scenarios.
result Deep Reinforcement Learning (DRL) finds more likely failure scenarios with fewer simulator calls than Monte Carlo Tree Search (MCTS).

Proposes CTSDG model for better vehicle intention prediction across domains.

problem Domain generalization for vehicle intention prediction in dynamic environments.
method Structural causal model with recurrent latent variable integration.
result Consistent improvement in prediction accuracy compared to state-of-the-art methods.

Generative model learns vehicle trajectory distributions for better data generalization.

problem Data sparsity and privacy issues in urban vehicle trajectory analysis.
method Generative adversarial imitation learning framework for urban vehicle trajectory generation.
result TrajGAIL model produces synthetic trajectories similar to real ones, achieving significant performance gains.

Optimal alarms detect vehicle collisions with theoretical and empirical validation.

problem Detecting dangerous vehicle collisions in real-time.
method Surveyed and compared three classes of collision detection techniques: Monte Carlo, deterministic approximations, and machine learning.
result Monte Carlo sampling is a robust solution for real-time collision detection despite its simplicity.

New approach uses dynamic programming to efficiently discover failures in autonomous vehicle simulations.

problem Efficiently discovering rare failure events in autonomous vehicle simulations.
method Approximate dynamic programming and scene decomposition to estimate failure distribution.
result Increased number of failures discovered compared to baseline approaches.