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Zheng-yu Niu

11 accepted papers

2025

The Rise of Darkness: Safety-Utility Trade-Offs in Role-Playing Dialogue Agents

ACL 2025finding

Large Language Models (LLMs) have made remarkable advances in role-playing dialogue agents, demonstrating their utility in character simulations. However, it remains challenging for these agents to balance character portrayal utility with content safety because this essential character simulation of…

2025

Thinking in Character: Advancing Role-Playing Agents with Role-Aware Reasoning

NeurIPS 2025poster

The advancement of Large Language Models (LLMs) has spurred significant interest in Role-Playing Agents (RPAs) for applications such as emotional companionship and virtual interaction. However, recent RPAs are often built on explicit dialogue data, lacking deep, human-like internal thought processes…

Cited by 0SourceScholar
2023

Towards Zero-Shot Persona Dialogue Generation with In-Context Learning

ACL 2023findings

Much work has been done to improve persona consistency by finetuning a pretrained dialogue model on high-quality human-annoated persona datasets. However, these methods still face the challenges of high cost and poor scalability. To this end, we propose a simple-yet-effective approach to significant…

Cited by 6SourcePDFScholar
2023

XDailyDialog: A Multilingual Parallel Dialogue Corpus

ACL 2023long

High-quality datasets are significant to the development of dialogue models. However, most existing datasets for open-domain dialogue modeling are limited to a single language. The absence of multilingual open-domain dialog datasets not only limits the research on multilingual or cross-lingual trans…

2022

CDConv: A Benchmark for Contradiction Detection in Chinese Conversations

EMNLP 2022main

Dialogue contradiction is a critical issue in open-domain dialogue systems. The contextualization nature of conversations makes dialogue contradiction detection rather challenging. In this work, we propose a benchmark for Contradiction Detection in Chinese Conversations, namely CDConv. It contains 1…

2022

Long Time No See! Open-Domain Conversation with Long-Term Persona Memory

ACL 2022findings

Most of the open-domain dialogue models tend to perform poorly in the setting of long-term human-bot conversations. The possible reason is that they lack the capability of understanding and memorizing long-term dialogue history information. To address this issue, we present a novel task of Long-term…

2022

PLATO-Ad: A Unified Advertisement Text Generation Framework with Multi-Task Prompt Learning

EMNLP 2022industry

Online advertisement text generation aims at generating attractive and persuasive text ads to appeal to users clicking ads or purchasing products. While pretraining-based models have achieved remarkable success in generating high-quality text ads, some challenges still remain, such as ad generation…

2022

Where to Go for the Holidays: Towards Mixed-Type Dialogs for Clarification of User Goals

ACL 2022long

Most dialog systems posit that users have figured out clear and specific goals before starting an interaction. For example, users have determined the departure, the destination, and the travel time for booking a flight. However, in many scenarios, limited by experience and knowledge, users may know…

2021

Discovering Dialog Structure Graph for Coherent Dialog Generation

ACL 2021long

Learning discrete dialog structure graph from human-human dialogs yields basic insights into the structure of conversation, and also provides background knowledge to facilitate dialog generation. However, this problem is less studied in open-domain dialogue. In this paper, we conduct unsupervised di…

2021

DuRecDial 2.0: A Bilingual Parallel Corpus for Conversational Recommendation

EMNLP 2021main

In this paper, we provide a bilingual parallel human-to-human recommendation dialog dataset (DuRecDial 2.0) to enable researchers to explore a challenging task of multilingual and cross-lingual conversational recommendation. The difference between DuRecDial 2.0 and existing conversational recommenda…

2020

Enhancing Dialog Coherence with Event Graph Grounded Content Planning

IJCAI 2020poster

How to generate informative, coherent and sustainable open-domain conversations is a non-trivial task. Previous work on knowledge grounded conversation generation focus on improving dialog informativeness with little attention on dialog coherence. In this paper, to enhance multi-turn dialog coherenc…