Challenge: Incorporating handwritten domain scripts into neural-based task-oriented dialogue systems may be an effective way to reduce the need for large sets of annotated dialogues.
Approach: They propose a system where domain scripts are coded in semi-logical rules and evaluated semi-logic rules produced by differently-skilled conversational designers.
Outcome: The proposed system outperforms state-of-the-art systems when trained with smaller sets of annotated dialogues.

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Challenge: Existing approaches to training dialogue agents separately are not optimized for multi-domain task-oriented dialogues.
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Addressing Domain Changes in Task-oriented Conversational Agents through Dialogue Adaptation (2023.eacl-srw)

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Challenge: Recent task-oriented dialogue systems are trained on annotated dialogues, but when domain knowledge changes, the initial model may become obsolete.
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Challenge: Recent large-scale language models have produced human-like responses in open-domain dialogue systems.
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Challenge: Commercial dialogue systems typically require a small footprint and fast execution time, but recent trends are in the other direction, resulting in difficulties in model deployment.
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Data Collection and End-to-End Learning for Conversational AI (D19-2)

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Challenge: tutorial aims to familiarise research community with recent advances in statistical dialogue systems . focus of tutorial is on learning end-to-end from data and their relation to more common modular systems.
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Do Neural Dialog Systems Use the Conversation History Effectively? An Empirical Study (P19-1)

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Challenge: Neural generative models are becoming more popular when building conversational agents.
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End-to-End Task-Oriented Dialogue Systems Based on Schema (2023.findings-acl)

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Challenge: Existing approaches for task-oriented dialogue systems rely on a unified schema across domains, but we propose a schema-aware model for task oriented dialogues based on 'slots'
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Soda-Eval: Open-Domain Dialogue Evaluation in the age of LLMs (2024.findings-emnlp)

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Challenge: Current evaluation practices of open domain dialogue systems are still highly dependent on human evaluation.
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