mlsanityData to 7 Oct 2026

ITINERA: Integrating Spatial Optimization with Large Language Models for Open-domain Urban Itinerary Planning

arXiv 2402.07204 ↗First posted 11 Feb 2024cs.AI cs.CL cs.LGcited by 33

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Abstract (arXiv)

Citywalk, a recently popular form of urban travel, requires genuine personalization and understanding of fine-grained requests compared to traditional itinerary planning. In this paper, we introduce the novel task of Open-domain Urban Itinerary Planning (OUIP), which generates personalized urban itineraries from user requests in natural language. We then present ITINERA, an OUIP system that integrates spatial optimization with large language models to provide customized urban itineraries based on user needs. This involves decomposing user requests, selecting candidate points of interest (POIs), ordering the POIs based on cluster-aware spatial optimization, and generating the itinerary. Experiments on real-world datasets and the performance of the deployed system demonstrate our system's capacity to deliver personalized and spatially coherent itineraries compared to current solutions. Source codes of ITINERA are available at https://github.com/YihongT/ITINERA.

Key facts. Cited by 33 papers in the map (data through 7 Oct 2026). Builds on 12 of its 33 references that are in the map. First posted on arXiv 11 Feb 2024.

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12 of 33 references.

References · 12

  1. 2021High-Resolution Image Synthesis with Latent Diffusion Modelscited by 18,694
  2. 2022Photorealistic Text-to-Image Diffusion Models with Deep Language Understandingcited by 6,322
  3. 2024TravelPlanner: A Benchmark for Real-World Planning with Language Agentscited by 385
  4. 2021ERNIE 3.0: Large-scale Knowledge Enhanced Pre-training for Language Understanding and Generationcited by 258
  5. 2023Where Would I Go Next? Large Language Models as Human Mobility Predictorscited by 92
  6. 2021Video Background Music Generation with Controllable Music Transformercited by 55
  7. 2022Leveraging Language Foundation Models for Human Mobility Forecastingcited by 50
  8. 2022Video Background Music Generation: Dataset, Method and Evaluationcited by 28
  9. 2023TrafficSafetyGPT: Tuning a Pre-trained Large Language Model to a Domain-Specific Expert in Transportation Safetycited by 27
  10. 2023Large Language Models for Travel Behavior Predictioncited by 13
  11. 2022POIBERT: A Transformer-based Model for the Tour Recommendation Problemcited by 10
  12. 2024Large language model empowered participatory urban planningcited by 5

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Cited by year (2026 to 7 Oct)

Citing papers per year: 2024: 3; 2025: 19; 2026: 11.

33 papers.

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  1. 2025A Survey on Personalized Alignment -- The Missing Piece for Large Language Models in Real-World Applicationscited by 40
  2. 2025Large Language Models for Planning: A Comprehensive and Systematic Surveycited by 38
  3. 2024Sparkle: Mastering Basic Spatial Capabilities in Vision Language Models Elicits Generalization to Spatial Reasoningcited by 33
  4. 2025Exploring the Roles of Large Language Models in Reshaping Transportation Systems: A Survey, Framework, and Roadmapcited by 26
  5. 2025Foundation Models for Spatio-Temporal Data Science: A Tutorial and Surveycited by 23
  6. 2024Toward LLM-Agent-Based Modeling of Transportation Systems: A Conceptual Frameworkcited by 19
  7. 2025Large language models for artificial general intelligence (AGI): A survey of foundational principles and approachescited by 18
  8. 2025DeepTravel: An End-to-End Agentic Reinforcement Learning Framework for Autonomous Travel Planning Agentscited by 17
  9. 2025TP-RAG: Benchmarking Retrieval-Augmented Large Language Model Agents for Spatiotemporal-Aware Travel Planningcited by 12
  10. 2025RETAIL: Towards Real-world Travel Planning for Large Language Modelscited by 9
  11. 2025Large Language Models and Their Applications in Roadway Safety and Mobility Enhancement: A Comprehensive Reviewcited by 8
  12. 2025Vision-to-Music Generation: A Surveycited by 4
21 more
  1. 2025Large Language Model Powered Intelligent Urban Agents: Concepts, Capabilities, and Applicationscited by 4
  2. 2026WorldTravel: A Realistic Multimodal Travel-Planning Benchmark with Tightly Coupled Constraintscited by 3
  3. 2024A Short Survey of Human Mobility Prediction in Epidemic Modeling from Transformers to LLMscited by 2
  4. 2025INTENT: Trajectory Prediction Framework with Intention-Guided Contrastive Clusteringcited by 2
  5. 2025Urban Computing in the Era of Large Language Modelscited by 2
  6. 2025E3AD: An Emotion-Aware Vision-Language-Action Model for Human-Centric End-to-End Autonomous Drivingcited by 2
  7. 2026TravelEval: A Comprehensive Benchmarking Framework for Evaluating LLM-Powered Travel Planning Agentscited by 2
  8. 2025LLMSynthor: Macro-Aligned Micro-Records Synthesis with Large Language Modelscited by 1
  9. 2025TripScore: Aligning LLMs for Real-World Travel Planning via Expert-Calibrated Rewardcited by 1
  10. 2026TRACE: Tourism Recommendation with Accountable Citation Evidencecited by 1
  11. 2026Think2Go: Generative Next POI Recommendation with LLM Reasoningcited by 1
  12. 2025RelationalFactQA: A Benchmark for Evaluating Tabular Fact Retrieval from Large Language Modelscited by 0
  13. 2025From Street Views to Urban Science: Discovering Road Safety Factors with Multimodal Large Language Modelscited by 0
  14. 2025Iti-Validator: A Guardrail Framework for Validating and Correcting LLM-Generated Itinerariescited by 0
  15. 2026Agentic AI for Trip Planning Optimization Applicationcited by 0
  16. 2026MobEvolve: An Agentic Self-Evolving Heuristic System for Interpretable Human Mobility Generationcited by 0
  17. 2026Embark Now: User Demand Oriented Framework for Multi-day Urban Travel Itinerary Planningcited by 0
  18. 2026TSCA-Net: Temporal-Spatial Clique Attention for Interpretable Multimodal Pedestrian Trajectory Predictioncited by 0
  19. 2026RELIC: Revealed Principles for Learning Interpretable Composable Skills in Multi-Agent Planningcited by 0
  20. 2026PlaceSeek: Human-Centered Geospatial Retrieval of Urban Outdoor Places via Semantic Grounding and Affective Alignmentcited by 0
  21. 2026Behavior2Trip: Towards Personalized Travel Planning via User Behavior Trajectorycited by 0