Large multimodal language models (MLLMs) have revolutionized natural language processing and visual understanding, but often contain outdated or inaccurate information. Current multimodal knowledge editing evaluations are limited in scope and potentially biased, focusing on narrow tasks and failing to assess the impact on in-domain samples. To address these issues, we introduce ComprehendEdit, a comprehensive benchmark comprising eight diverse tasks from multiple datasets. We propose two novel metrics: Knowledge Generalization Index (KGI) and Knowledge Preservation Index (KPI), which evaluate editing effects on in-domain samples without relying on AI-synthetic samples. Based on insights from our framework, we establish Hierarchical In-Context Editing (HICE), a baseline method employing a two-stage approach that balances performance across all metrics. This study provides a more comprehensive evaluation framework for multimodal knowledge editing, reveals unique challenges in this field, and offers a baseline method demonstrating improved performance. Our work opens new perspectives for future research and provides a foundation for developing more robust and effective editing techniques for MLLMs.

This paper focuses on Open-Vocabulary Multimodal Emotion Recognition (OV-MER) and is dedicated to solving the two challenges it faces: concept semantic misalignment and incomplete coverage of fine-grained emotion categories. To address this, we propose a novel cognitive agent framework (Agent-MER), which reframes the OV-MER task as a problem to be solved by an agent that mimics the human cognitive process through knowledge-guided deliberation. We first construct a hierarchical Emotion Tree to serve as the agent's knowledge base. Building on this, we design a Knowledge-Guided Hierarchical Deliberation reasoning process. This process systematically explores the entire emotional landscape through a three-level, coarse-to-fine iterative reasoning process, enabling the identification of a richer and deeper range of emotions. Finally, a Self-Consistent Voting mechanism is employed to aggregate the results from multiple reasoning runs, ensuring the robustness of the final output. Experiments conducted in the MER2025 Challenge demonstrate that our proposed method achieved a top-ranking score of 61.04%, securing first place and significantly outperforming existing baselines. This work not only provides an effective solution for OV-MER but also opens up new avenues for developing more human-like affective intelligence systems.

Accurately detecting objects and their interrelationships for Video Scene Graph Generation (VidSGG) confronts two primary challenges. The first involves the identification of active objects interacting with humans from the numerous background objects, while the second challenge is long-tailed distribution among predicate classes. To tackle these challenges, we propose STABILE, a novel framework with a spatial-temporal saliency-guided contrastive learning scheme. For the first challenge, STABILE features an active object retriever that includes an object saliency fusion block for enhancing object embeddings with motion cues alongside an object temporal encoder to capture temporal dependencies. For the second challenge, STABILE introduces an unbiased relationship representation learning module with an Unbiased Multi-Label (UML) contrastive loss to mitigate the effect of long-tailed distribution. With the enhancements in both aspects, STABILE substantially boosts the accuracy of scene graph generation. Extensive experiments demonstrate the superiority of STABILE, setting new benchmarks in the field by offering enhanced accuracy and unbiased scene graph generation.