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Dazhen Wan

4 accepted papers

2026

Ψ-Arena: Interactive Assessment and Optimization of LLM-based Psychological Counselors with Tripartite Feedback

AAAI 2026technical

Large language models (LLMs) have shown promise in providing scalable mental health support, while evaluating their counseling capability remains crucial to ensure both efficacy and safety. Existing evaluations are limited by the static assessment that focuses on knowledge tests, the single perspect

Cited by 0SourcePDFScholar
2024

CharacterGLM: Customizing Social Characters with Large Language Models

EMNLP 2024industry

Character-based dialogue (CharacterDial) has become essential in the industry (e.g., Character.AI), enabling users to freely customize social characters for social interactions. However, the generalizability and adaptability across various conversational scenarios inherent in customizing social char…

Cited by 0SourcePDFScholar
2022

A Unified Dialogue User Simulator for Few-shot Data Augmentation

EMNLP 2022finding

Pre-trained language models have shown superior performance in task-oriented dialogues. However, existing datasets are on limited scales, which cannot support large-scale pre-training. Fortunately, various data augmentation methods have been developed to augment large-scale task-oriented dialogue co…

Cited by 27SourcePDFScholar
2021

Robustness Testing of Language Understanding in Task-Oriented Dialog

ACL 2021long

Most language understanding models in task-oriented dialog systems are trained on a small amount of annotated training data, and evaluated in a small set from the same distribution. However, these models can lead to system failure or undesirable output when being exposed to natural language perturba…