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Chengpei Tang

5 accepted papers

2026

HiVA: Self-organized Hierarchical Variable Agent via Goal-driven Semantic-Topological Evolution

AAAI 2026technical

Autonomous agents play a crucial role in advancing Artificial General Intelligence, enabling problem decomposition and tool orchestration through Large Language Models (LLMs). However, existing paradigms face a critical trade-off. On one hand, reusable fixed workflows require manual reconfiguration

Cited by 0SourcePDFScholar
2026

Top-Down Semantic Refinement for Image Captioning

AAAI 2026technical

Large Vision-Language Models (VLMs) face an inherent contradiction in image captioning: their powerful single-step generation capabilities often lead to a myopic decision-making process. This makes it difficult to maintain global narrative coherence while capturing rich details, a limitation that is

Cited by 0SourcePDFScholar
2025

DrDiff: Dynamic Routing Diffusion with Hierarchical Attention for Breaking the Efficiency-Quality Trade-off

EMNLP 2025

This paper introduces DrDiff, a novel framework for long-text generation that overcomes the efficiency-quality trade-off through three core technologies. First, we design a dynamic expert scheduling mechanism that intelligently allocates computational resources during the diffusion process based on

Cited by 0SourcePDFScholar
2024

Gesture Generation Via Diffusion Model with Attention Mechanism

ICASSP 2024accepted

Generating natural and semantically aligned gestures from speech remains a challenging task in human-computer interaction due to the intricate relationship between speech and gestures. While recent advances in learning-based methodologies have shown progress, they exhibit limitations like limited di…

Cited by 0SourceScholar