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Recent Advances and Challenges in Task-oriented Dialog System

arXiv 2003.07490 ↗First posted 17 Mar 2020cs.CLcited by 78

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Abstract (arXiv)

Due to the significance and value in human-computer interaction and natural language processing, task-oriented dialog systems are attracting more and more attention in both academic and industrial communities. In this paper, we survey recent advances and challenges in task-oriented dialog systems. We also discuss three critical topics for task-oriented dialog systems: (1) improving data efficiency to facilitate dialog modeling in low-resource settings, (2) modeling multi-turn dynamics for dialog policy learning to achieve better task-completion performance, and (3) integrating domain ontology knowledge into the dialog model. Besides, we review the recent progresses in dialog evaluation and some widely-used corpora. We believe that this survey, though incomplete, can shed a light on future research in task-oriented dialog systems.

Key facts. Cited by 78 papers in the map (data through 7 Oct 2026). First posted on arXiv 17 Mar 2020.

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Cited by year (2026 to 7 Oct)

Citing papers per year: 2021: 9; 2022: 15; 2023: 20; 2024: 17; 2025: 11; 2026: 6.

78 papers.

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  1. 2024WebLINX: Real-World Website Navigation with Multi-Turn Dialoguecited by 177
  2. 2022Pretrained Language Models for Text Generation: A Surveycited by 121
  3. 2023Prompting and Evaluating Large Language Models for Proactive Dialogues: Clarification, Target-guided, and Non-collaborationcited by 115
  4. 2023A Complete Survey on Generative AI (AIGC): Is ChatGPT from GPT-4 to GPT-5 All You Need?cited by 84
  5. 2022META-GUI: Towards Multi-modal Conversational Agents on Mobile GUIcited by 81
  6. 2022TalkToModel: Explaining Machine Learning Models with Interactive Natural Language Conversationscited by 65
  7. 2025Large Language Models Hallucination: A Comprehensive Surveycited by 45
  8. 2021GlobalWoZ: Globalizing MultiWoZ to Develop Multilingual Task-Oriented Dialogue Systemscited by 30
  9. 2022A Survey on Recent Advances and Challenges in Reinforcement Learning Methods for Task-Oriented Dialogue Policy Learningcited by 30
  10. 2025MMRC: A Large-Scale Benchmark for Understanding Multimodal Large Language Model in Real-World Conversationcited by 28
  11. 2021Effectiveness of Pre-training for Few-shot Intent Classificationcited by 27
  12. 2023Intelligent Virtual Assistants with LLM-based Process Automationcited by 26
38 more
  1. 2024Reliable LLM-based User Simulator for Task-Oriented Dialogue Systemscited by 24
  2. 2021ReMeDi: Resources for Multi-domain, Multi-service, Medical Dialoguescited by 20
  3. 2023In-Context Learning User Simulators for Task-Oriented Dialog Systemscited by 19
  4. 2025Goal Alignment in LLM-Based User Simulators for Conversational AIcited by 19
  5. 2022Dynamic Schema Graph Fusion Network for Multi-Domain Dialogue State Trackingcited by 18
  6. 2023End-to-end Task-oriented Dialogue: A Survey of Tasks, Methods, and Future Directionscited by 17
  7. 2022Robust Dialogue State Tracking with Weak Supervision and Sparse Datacited by 15
  8. 2022Social Influence Dialogue Systems: A Survey of Datasets and Models For Social Influence Taskscited by 14
  9. 2024Common Ground Tracking in Multimodal Dialoguecited by 13
  10. 2022Dynamic Dialogue Policy for Continual Reinforcement Learningcited by 12
  11. 2024Large Language Models as User-Agents for Evaluating Task-Oriented-Dialogue Systemscited by 11
  12. 2026Trajectory2Task: Training Robust Tool-Calling Agents with Synthesized Yet Verifiable Data for Complex User Intentscited by 11
  13. 2024Social Intelligence Data Infrastructure: Structuring the Present and Navigating the Futurecited by 10
  14. 2023Marrying Dialogue Systems with Data Visualization: Interactive Data Visualization Generation from Natural Language Conversationscited by 9
  15. 2023Evaluating Task-oriented Dialogue Systems: A Systematic Review of Measures, Constructs and their Operationalisationscited by 9
  16. 2022Anti-Overestimation Dialogue Policy Learning for Task-Completion Dialogue Systemcited by 8
  17. 2022Prompt Conditioned VAE: Enhancing Generative Replay for Lifelong Learning in Task-Oriented Dialoguecited by 8
  18. 2023Generative Zero-Shot Prompt Learning for Cross-Domain Slot Filling with Inverse Promptingcited by 8
  19. 2023Conversational Tree Search: A New Hybrid Dialog Taskcited by 7
  20. 2021Imperfect also Deserves Reward: Multi-Level and Sequential Reward Modeling for Better Dialog Managementcited by 6
  21. 2022Converse: A Tree-Based Modular Task-Oriented Dialogue Systemcited by 6
  22. 2024Simulating Task-Oriented Dialogues with State Transition Graphs and Large Language Modelscited by 6
  23. 2024Sparse Rewards Can Self-Train Dialogue Agentscited by 6
  24. 2021A Context-Aware Hierarchical BERT Fusion Network for Multi-turn Dialog Act Detectioncited by 5
  25. 2022Post-processing Networks: Method for Optimizing Pipeline Task-oriented Dialogue Systems using Reinforcement Learningcited by 5
  26. 2023InstructTODS: Large Language Models for End-to-End Task-Oriented Dialogue Systemscited by 5
  27. 2024Ar-Spider: Text-to-SQL in Arabiccited by 5
  28. 2024Medical Dialogue: A Survey of Categories, Methods, Evaluation and Challengescited by 5
  29. 2023Conversation Style Transfer using Few-Shot Learningcited by 4
  30. 2023TOD-Flow: Modeling the Structure of Task-Oriented Dialoguescited by 4
  31. 2024Towards a Zero-Data, Controllable, Adaptive Dialog Systemcited by 4
  32. 2024Dialog Flow Induction for Constrainable LLM-Based Chatbotscited by 4
  33. 2025Agent-Initiated Interaction in Phone UI Automationcited by 4
  34. 2026Feedback by Design: Understanding and Overcoming User Feedback Barriers in Conversational Agentscited by 4
  35. 2026ComBodied Agents: a New Paradigm of Human-Centric Agentic AIcited by 4
  36. 2021Retraining DistilBERT for a Voice Shopping Assistant by Using Universal Dependenciescited by 3
  37. 2021Task-oriented Dialogue Systems: performance vs. quality-optima, a reviewcited by 3
  38. 2022"Think Before You Speak": Improving Multi-Action Dialog Policy by Planning Single-Action Dialogscited by 3

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