activity
20182026
most citedA Challenge on Semi-Supervised and Reinforced Task-Oriented Dialog Systems

8 citations · 26 across the 18 of their papers we have counts for

collaborators

18 papers

cs.CL2026

Relay, Don't Route: Adaptive Population Handoff for Cost-Efficient LLM-Driven Evolution

Sichun Luo, Yi Huang, Guanzhi Deng +6

Large language model (LLM)-driven evolution has shown promise for program search and algorithm discovery, but relying on strong models throughout long evolutionary runs is costly.…

cs.AI2026

Harness-Aware Self-Evolving: Co-Evolving Model Weights, Harness, and Task Solutions

Haochen Luo, Yi Huang, Sichun Luo +5

Self-evolving frameworks usually optimize task solutions while treating the surrounding harness as fixed. We introduce Harness-Aware Self-Evolving (HASE), an agentic reinforcement-…

cs.CL2026

SeaEvo: Advancing Algorithm Discovery with Strategy Space Evolution

Sichun Luo, Yi Huang, Haochen Luo +7

Large Language Model (LLM)-guided evolutionary search is increasingly used for automated algorithm discovery, yet most current methods track search progress primarily through execu…

cs.CL2025

Knowledge Augmented Finetuning Matters in both RAG and Agent Based Dialog Systems

Yucheng Cai, Yuxuan Wu, Yi Huang +2

Large language models (LLMs) have recently been applied to dialog systems. Despite making progress, LLMs are prone to errors in knowledge-intensive scenarios. Recently, approaches…

cs.CL2025

Entriever: Energy-based Retriever for Knowledge-Grounded Dialog Systems

Yucheng Cai, Ke Li, Yi Huang +2

A retriever, which retrieves relevant knowledge pieces from a knowledge base given a context, is an important component in many natural language processing (NLP) tasks. Retrievers…

cs.CL2025

Palette of Language Models: A Solver for Controlled Text Generation

Zhe Yang, Yi Huang, Yaqin Chen +3

Recent advancements in large language models have revolutionized text generation with their remarkable capabilities. These models can produce controlled texts that closely adhere t…

cs.CL2024

The 2nd FutureDial Challenge: Dialog Systems with Retrieval Augmented Generation (FutureDial-RAG)

Yucheng Cai, Si Chen, Yuxuan Wu +3

Recently, increasing research interests have focused on retrieval augmented generation (RAG) to mitigate hallucination for large language models (LLMs). Following this trend, we la…

cs.CL2023

Prompt Pool based Class-Incremental Continual Learning for Dialog State Tracking

Hong Liu, Yucheng Cai, Yuan Zhou +3

Continual learning is crucial for dialog state tracking (DST) in dialog systems, since requirements from users for new functionalities are often encountered. However, most of exist…

cs.CL2022

A Generative User Simulator with GPT-based Architecture and Goal State Tracking for Reinforced Multi-Domain Dialog Systems

Hong Liu, Yucheng Cai, Zhijian Ou +2

Building user simulators (USs) for reinforcement learning (RL) of task-oriented dialog systems (DSs) has gained more and more attention, which, however, still faces several fundame…

cs.CL2022

Information Extraction and Human-Robot Dialogue towards Real-life Tasks: A Baseline Study with the MobileCS Dataset

Hong Liu, Hao Peng, Zhijian Ou +3

Recently, there have merged a class of task-oriented dialogue (TOD) datasets collected through Wizard-of-Oz simulated games. However, the Wizard-of-Oz data are in fact simulated da…

cs.CL2022★ 5 cited

PSSAT: A Perturbed Semantic Structure Awareness Transferring Method for Perturbation-Robust Slot Filling

Guanting Dong, Daichi Guo, Liwen Wang +10

Most existing slot filling models tend to memorize inherent patterns of entities and corresponding contexts from training data. However, these models can lead to system failure or…

cs.CL2022★ 8 cited

A Challenge on Semi-Supervised and Reinforced Task-Oriented Dialog Systems

Zhijian Ou, Junlan Feng, Juanzi Li +5

A challenge on Semi-Supervised and Reinforced Task-Oriented Dialog Systems, Co-located with EMNLP2022 SereTOD Workshop.

cs.CL2022

Curriculum-Based Self-Training Makes Better Few-Shot Learners for Data-to-Text Generation

Pei Ke, Haozhe Ji, Zhenyu Yang +4

Despite the success of text-to-text pre-trained models in various natural language generation (NLG) tasks, the generation performance is largely restricted by the number of labeled…

cs.CL2022★ 4 cited

"Think Before You Speak": Improving Multi-Action Dialog Policy by Planning Single-Action Dialogs

Shuo Zhang, Junzhou Zhao, Pinghui Wang +3

Multi-action dialog policy (MADP), which generates multiple atomic dialog actions per turn, has been widely applied in task-oriented dialog systems to provide expressive and effici…

cs.CL2022★ 5 cited

Building Markovian Generative Architectures over Pretrained LM Backbones for Efficient Task-Oriented Dialog Systems

Hong Liu, Yucheng Cai, Zhijian Ou +2

Recently, Transformer based pretrained language models (PLMs), such as GPT2 and T5, have been leveraged to build generative task-oriented dialog (TOD) systems. A drawback of existi…

cs.CL2022

Interactive Contrastive Learning for Self-supervised Entity Alignment

Kaisheng Zeng, Zhenhao Dong, Lei Hou +6

Self-supervised entity alignment (EA) aims to link equivalent entities across different knowledge graphs (KGs) without seed alignments. The current SOTA self-supervised EA method d…

cs.CL2021★ 2 cited

Variational Latent-State GPT for Semi-Supervised Task-Oriented Dialog Systems

Hong Liu, Yucheng Cai, Zhenru Lin +3

Recently, two approaches, fine-tuning large pre-trained language models and variational training, have attracted significant interests, separately, for semi-supervised end-to-end t…

cs.CL2018★ 2 cited

Elastic CRFs for Open-ontology Slot Filling

Yinpei Dai, Yichi Zhang, Hong Liu +3

Slot filling is a crucial component in task-oriented dialog systems that is used to parse (user) utterances into semantic concepts called slots. An ontology is defined by the colle…