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Zhouhang Xie

7 accepted papers

2025

From Selection to Generation: A Survey of LLM-based Active Learning

ACL 2025long

Active Learning (AL) has been a powerful paradigm for improving model efficiency and performance by selecting the most informative data points for labeling and training. In recent active learning frameworks, Large Language Models (LLMs) have been employed not only for selection but also for generati…

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2025

Latent Factor Models Meets Instructions: Goal-conditioned Latent Factor Discovery without Task Supervision

NAACL 2025long

Instruction-following LLMs have recently allowed systems to discover hidden concepts from a collection of unstructured documents based on a natural language description of the purpose of the discovery (i.e., goal). Still, the quality of the discovered concepts remains mixed, as it depends heavily on…

2024

Few-shot Dialogue Strategy Learning for Motivational Interviewing via Inductive Reasoning

ACL 2024findings

We consider the task of building a dialogue system that can motivate users to adopt positive lifestyle changes, Motivational Interviewing (MI). Addressing such a task requires a system that could infer how to motivate the user effectively. We propose DIIR, a framework that is capable of learning and…

2024

Mitigating Hallucination in Fictional Character Role-Play

EMNLP 2024finding

Role-playing has wide-ranging applications in customer support, embodied agents, and computational social science. The influence of parametric world knowledge of large language models (LLMs) often causes role-playing characters to act out of character and to hallucinate about things outside the scop…

2024

RecWizard: A Toolkit for Conversational Recommendation with Modular, Portable Models and Interactive User Interface

AAAI 2024technical

We present a new Python toolkit called RecWizard for Conversational Recommender Systems (CRS). RecWizard offers support for development of models and interactive user interface, drawing from the best practices of the Huggingface ecosystems. CRS with RecWizard are modular, portable, interactive and L…

2023

Factual and Informative Review Generation for Explainable Recommendation

AAAI 2023technical

Recent models can generate fluent and grammatical synthetic reviews while accurately predicting user ratings. The generated reviews, expressing users' estimated opinions towards related products, are often viewed as natural language ‘rationales’ for the jointly predicted rating. However, previous st…