Challenge: Existing studies on second language (SL) assessment of conversational fluency and interactivity have focused on written correction or pronunciation from ASR.
Approach: They propose a framework that assesses the relationships between micro-level linguistic features and macro-level interactivity labels for Chinese-as-a-second-language dialogues.
Outcome: The proposed framework is interpretable and can be adapted to other languages for second-language dialogue evaluation.

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Challenge: Cross-lingual alignment is the meaningful similarity of representations across languages in multilingual language models.
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IM^2: an Interpretable and Multi-category Integrated Metric Framework for Automatic Dialogue Evaluation (2022.emnlp-main)

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Challenge: Evaluation metrics for dialogue systems are expensive and time-consuming . current evaluation metrics focus on a single quality or several qualities .
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End-to-End Evaluation for Low-Latency Simultaneous Speech Translation (2023.emnlp-demo)

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Challenge: a framework to evaluate low-latency speech translations is currently only limited to specific aspects and is not able to compare different approaches.
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Disentangling Language and Culture for Evaluating Multilingual Large Language Models (2025.acl-long)

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Challenge: Extensive evaluations of large language models (LLMs) are conducted on a wide range of models, revealing a notable cultural-linguistic synergy phenomenon, where models exhibit better performance when questions are culturally aligned with the language.
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XNLI: Evaluating Cross-lingual Sentence Representations (D18-1)

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Challenge: State-of-the-art natural language processing systems rely on annotated data to learn competent models.
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Analyzing the Evaluation of Cross-Lingual Knowledge Transfer in Multilingual Language Models (2024.eacl-long)

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Challenge: Recent advances in training multilingual models on large datasets have shown promising results in knowledge transfer across languages.
Approach: They challenge the assumption that high zero-shot performance reflects high cross-lingual ability by introducing more challenging setups involving instances with multiple languages.
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xDial-Eval: A Multilingual Open-Domain Dialogue Evaluation Benchmark (2023.findings-emnlp)

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Challenge: Currently, human evaluation is the most reliable way to holistically judge the quality of the dialogue.
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Cross-Lingual Dialogue Dataset Creation via Outline-Based Generation (2023.tacl-1)

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Challenge: Multilingual task-oriented dialogue (ToD) datasets suffer from severe limitations, such as being small in scale and lacking naturalness and cultural specificity in the target language.
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MEEP: Is this Engaging? Prompting Large Language Models for Dialogue Evaluation in Multilingual Settings (2023.findings-emnlp)

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Challenge: Existing metrics for engagingness evaluate the response without the conversation history, are designed for one dataset, or have limited correlation with human annotations.
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Natural Language Processing for Multilingual Task-Oriented Dialogue (2022.acl-tutorials)

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Challenge: a tutorial will examine the challenges and gaps in multilingual ToD research . multilingual systems are difficult to build, and are limited to English and other languages .
Approach: This tutorial will discuss the importance of multilingual task-oriented dialogue systems . it will provide an overview of current research gaps, challenges and initiatives related to multilingual ToD systems - with a particular focus on their connections to current research and challenges in multilingual and low-resource NLP.
Outcome: This tutorial will provide an overview of current research gaps, challenges and initiatives related to multilingual ToD systems.

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