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Zicheng Zhao

9 accepted papers

2026

CogStream: Context-guided Streaming Video Question Answering

AAAI 2026technical

Despite advancements in Video Large Language Models (Vid-LLMs) improving multimodal understanding, challenges persist in streaming video reasoning due to its reliance on contextual information. Existing paradigms feed all available historical contextual information into Vid-LLMs, resulting in a sign

Cited by 0SourcePDFScholar
2026

G-reasoner: Foundation Models for Unified Reasoning over Graph-structured Knowledge

ICLR 2026poster

Large language models (LLMs) excel at complex reasoning but remain limited by static and incomplete parametric knowledge. Retrieval-augmented generation (RAG) mitigates this by incorporating external knowledge, yet existing RAGs struggle with knowledge-intensive tasks due to fragmented information a…

Cited by 0SourcecodeScholar
2026

Massive Activations are the Key to Local Detail Synthesis in Diffusion Transformers

ICLR 2026poster

Massive Activations (MAs) are a well-documented phenomenon across Transformer architectures, and prior studies in both LLMs and ViTs have shown that they play a substantial role in shaping model behavior. However, the nature and function of MAs within Diffusion Transformers (DiTs) remain largely une…

Cited by 0SourceScholar
2026

Well Begun, Half Done: Reinforcement Learning with Prefix Optimization for LLM Reasoning

AAAI 2026technical

Reinforcement Learning with Verifiable Rewards (RLVR) significantly enhances the reasoning capability of Large Language Models (LLMs). Current RLVR approaches typically conduct training across all generated tokens, but neglect to explore which tokens (e.g., prefix tokens) actually contribute to reas

Cited by 0SourcePDFScholar
2025

GFM-RAG: Graph Foundation Model for Retrieval Augmented Generation

NeurIPS 2025poster

Retrieval-augmented generation (RAG) has proven effective in integrating knowledge into large language models (LLMs). However, conventional RAGs struggle to capture complex relationships between pieces of knowledge, limiting their performance in intricate reasoning that requires integrating knowledg…

Cited by 0SourcecodeScholar
2025

Graph-constrained Reasoning: Faithful Reasoning on Knowledge Graphs with Large Language Models

ICML 2025poster

Large language models (LLMs) have demonstrated impressive reasoning abilities, but they still struggle with faithful reasoning due to knowledge gaps and hallucinations. To address these issues, knowledge graphs (KGs) have been utilized to enhance LLM reasoning through their structured knowledge. How…

2025

ORIGAMISPACE: Benchmarking Multimodal LLMs in Multi-Step Spatial Reasoning with Mathematical Constraints

NeurIPS 2025spotlight

Spatial reasoning is a key capability in the field of artificial intelligence, especially crucial in areas such as robotics, computer vision, and natural language understanding. However, evaluating the ability of multimodal large language models (MLLMs) in complex spatial reasoning still faces chall…

Cited by 0SourceScholar
2021

Deep Transport Network for Unsupervised Video Object Segmentation

ICCV 2021poster

The popular unsupervised video object segmentation methods fuse the RGB frame and optical flow via a two-stream network. However, they cannot handle the distracting noises in each input modality, which may vastly deteriorate the model performance. We propose to establish the correspondence between t…

Cited by 67PDFScholar