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Zheng Cao

13 accepted papers

2026

Mitigating Conversational Inertia in Multi-Turn Agents

ICML 2026poster

Large language models excel as few-shot learners when provided with appropriate demonstrations, yet this strength becomes problematic in multi-turn agent scenarios, where LLMs erroneously mimic their own previous responses as few-shot examples. Through attention analysis, we identify \textbf{convers…

Cited by 0SourceScholar
2026

Trajectory-Level Speculative Decoding for Diffusion Language Models

ICML 2026poster

Diffusion-based language models (dLLMs) enable parallel token generation through iterative denoising, but existing decoding strategies collapse to single-token generation under low confidence, severely limiting throughput. Unlike autoregressive models where speculative decoding operates on token seq…

Cited by 0SourceScholar
2025

Mask-Enhanced Autoregressive Prediction: Pay Less Attention to Learn More

ICML 2025poster

Large Language Models (LLMs) are discovered to suffer from accurately retrieving key information. To address this, we propose Mask-Enhanced Autoregressive Prediction (MEAP), a simple yet effective training paradigm that seamlessly integrates Masked Language Modeling (MLM) into Next-Token Prediction…

2022

CGoDial: A Large-Scale Benchmark for Chinese Goal-oriented Dialog Evaluation

EMNLP 2022main

Practical dialog systems need to deal with various knowledge sources, noisy user expressions, and the shortage of annotated data. To better solve the above problems, we propose CGoDial, a new challenging and comprehensive Chinese benchmark for multi-domain Goal-oriented Dialog evaluation. It contain…

2022

ElasticMVS: Learning elastic part representation for self-supervised multi-view stereopsis

NeurIPS 2022accept

Self-supervised multi-view stereopsis (MVS) attracts increasing attention for learning dense surface predictions from only a set of images without onerous ground-truth 3D training data for supervision. However, existing methods highly rely on the local photometric consistency, which fails to identif…

Cited by 9SourcePDFScholar
2022

GALAXY: A Generative Pre-trained Model for Task-Oriented Dialog with Semi-supervised Learning and Explicit Policy Injection

AAAI 2022technical

Pre-trained models have proved to be powerful in enhancing task-oriented dialog systems. However, current pre-training methods mainly focus on enhancing dialog understanding and generation tasks while neglecting the exploitation of dialog policy. In this paper, we propose GALAXY, a novel pre-trained…

2022

SPACE-2: Tree-Structured Semi-Supervised Contrastive Pre-training for Task-Oriented Dialog Understanding

COLING 2022main

Pre-training methods with contrastive learning objectives have shown remarkable success in dialog understanding tasks. However, current contrastive learning solely considers the self-augmented dialog samples as positive samples and treats all other dialog samples as negative ones, which enforces dis…

2022

STAR: SQL Guided Pre-Training for Context-dependent Text-to-SQL Parsing

EMNLP 2022finding

In this paper, we propose a novel SQL guided pre-training framework STAR for context-dependent text-to-SQL parsing, which leverages contextual information to enrich natural language (NL) utterance and table schema representations for text-to-SQL conversations. Concretely, we propose two novel pre-tr…

2022

mPLUG: Effective and Efficient Vision-Language Learning by Cross-modal Skip-connections

EMNLP 2022main

Large-scale pre-trained foundation models have been an emerging paradigm for building artificial intelligence (AI) systems, which can be quickly adapted to a wide range of downstream tasks. This paper presents mPLUG, a new vision-language foundation model for both cross-modal understanding and gener…

2020

Reversal No Longer Matters: Attention-Based Arrhythmia Detection with Lead-Reversal ECG Data

ICASSP 2020accepted

In this paper, we propose an attention-based multi-scale neural network for arrhythmia detection with lead-reversal electrocardiogram data. Electrocardiogram with a set of 12 waveforms(known as 12-lead ECG) measures myocardial electro-physiological activity, which is important in clinical diagnosis…

Cited by 0SourceScholar
2017

Robust linear discriminant analysis with a Laplacian assumption on projection distribution

ICASSP 2017accepted

Linear discriminant analysis (LDA) is typically carried out using Fisher's method, which relies heavily on the estimation of sample mean vectors and covariance matrices. However, Fisher LDA is vulnerable to outliers as it happens to other multivariate statistical methods. In this paper, we analyzed…

Cited by 0SourceScholar