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Jiafeng Liang

12 accepted papers

2026

From Sampling to Cognition: Modeling Internal Cognitive Confidence in Language Models for Robust Uncertainty Calibration

AAAI 2026technical

Large Language Models (LLMs) have demonstrated remarkable performance across a wide range of tasks, yet they generally lack self-awareness, often displaying overconfidence when confronted with questions beyond their knowledge boundaries. This limitation severely hinders their trustworthiness in high

Cited by 0SourcePDFScholar
2026

Half-order Fine-Tuning for Diffusion Model: A Recursive Likelihood Ratio Optimizer

ICLR 2026oral

The probabilistic diffusion model (DM), generating content by inferencing through a recursive chain structure, has emerged as a powerful framework for visual generation. After pre-training on enormous data, the model needs to be properly aligned to meet requirements for downstream applications. How…

Cited by 0SourcecodeScholar
2025

Breaking the Reasoning Barrier A Survey on LLM Complex Reasoning through the Lens of Self-Evolution

ACL 2025finding

The release of OpenAI’s O1 and subsequent projects like DeepSeek R1 has significantly advanced research on complex reasoning in LLMs. This paper systematically analyzes existing reasoning studies from the perspective of self-evolution, structured into three components: data evolution, model evolutio…

Cited by 0SourcePDFScholar
2025

From Specific-MLLMs to Omni-MLLMs: A Survey on MLLMs Aligned with Multi-modalities

ACL 2025finding

To tackle complex tasks in real-world scenarios, more researchers are focusing on Omni-MLLMs, which aim to achieve omni-modal understanding and generation. Beyond the constraints of any specific non-linguistic modality, Omni-MLLMs map various non-linguistic modalities into the embedding space of LLM…

2025

Investigating and Enhancing the Robustness of Large Multimodal Models Against Temporal Inconsistency

ACL 2025long

Large Multimodal Models (LMMs) have recently demonstrated impressive performance on general video comprehension benchmarks. Nevertheless, for broader applications, the robustness of their temporal analysis capability needs to be thoroughly investigated yet predominantly ignored. Motivated by this, w…

Cited by 0SourcePDFScholar
2025

Self-Critique Guided Iterative Reasoning for Multi-hop Question Answering

ACL 2025finding

Although large language models (LLMs) have demonstrated remarkable reasoning capabilities, they still face challenges in knowledge-intensive multi-hop reasoning. Recent work explores iterative retrieval to address complex problems. However, the absence of intermediate guidance often leads to inaccur…

2024

CogGPT: Unleashing the Power of Cognitive Dynamics on Large Language Models

EMNLP 2024finding

Cognitive dynamics, which refer to the evolution in human cognitive processes, are pivotal to advance human understanding of the world. Recent advancements in large language models (LLMs) highlight their potential for cognitive simulation. However, these LLM-based cognitive studies primarily focus o…

2024

GUIDE: A Guideline-Guided Dataset for Instructional Video Comprehension

IJCAI 2024poster

There are substantial instructional videos on the Internet, which provide us tutorials for completing various tasks. Existing instructional video datasets only focus on specific steps at the video level, lacking experiential guidelines at the task level, which can lead to beginners struggling to lea…

Cited by 1SourcePDFScholar
2024

Infrared-LLaVA: Enhancing Understanding of Infrared Images in Multi-Modal Large Language Models

EMNLP 2024finding

Expanding the understanding capabilities of multi-modal large language models (MLLMs) for infrared modality is a challenge due to the single-modality nature and limited amount of training data. Existing methods typically construct a uniform embedding space for cross-modal alignment and leverage abun…

Cited by 1SourcePDFScholar
2024

SmartTrim: Adaptive Tokens and Attention Pruning for Efficient Vision-Language Models

COLING 2024main

Despite achieving remarkable performance on various vision-language tasks, Transformer-based Vision-Language Models (VLMs) suffer from redundancy in inputs and parameters, significantly hampering their efficiency in real-world applications. Moreover, the degree of redundancy in token representations…

2023

GTR: A Grafting-Then-Reassembling Framework for Dynamic Scene Graph Generation

IJCAI 2023poster

Dynamic scene graph generation aims to identify visual relationships (subject-predicate-object) in frames based on spatio-temporal contextual information in the video. Previous work implicitly models the spatio-temporal interaction simultaneously, which leads to entanglement of spatio-temporal conte…

Cited by 2SourcePDFScholar
2023

MTGER: Multi-view Temporal Graph Enhanced Temporal Reasoning over Time-Involved Document

EMNLP 2023long findings

The facts and time in the document are intricately intertwined, making temporal reasoning over documents challenging. Previous work models time implicitly, making it difficult to handle such complex relationships. To address this issue, we propose MTGER, a novel Multi-view Temporal Graph Enhanced Re…

Cited by 0SourceScholar