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Tian Gan

9 accepted papers

2026

Dual Optimal Transport for Multi-Concept Composition: Structural Alignment and Texture Injection in Diffusion Models

ICML 2026poster

Diffusion models have shown impressive capabilities in text-to-image synthesis, but multi-concept personalized generation remains challenging, particularly in aligning multiple reference concepts while preserving fidelity. In this work, we propose a novel framework that addresses this challenge with…

Cited by 0SourceScholar
2025

Generative Agents for Multimodal Controversy Detection

IJCAI 2025

Multimodal controversy detection, which involves determining whether a given video and its associated comments are controversial, plays a pivotal role in risk management on social video platforms. Existing methods typically provide only classification results, failing to identify what aspects are co

Cited by 0SourcePDFScholar
2025

Social Debiasing for Fair Multi-modal LLMs

ICCV 2025poster

Multi-modal Large Language Models (MLLMs) have dramatically advanced the research field and delivered powerful vision-language understanding capabilities. However, these models often inherit deep-rooted social biases from their training data, leading to uncomfortable responses with respect to attrib…

Cited by 0SourcePDFScholar
2024

EVE: Efficient Zero-Shot Text-Based Video Editing With Depth Map Guidance and Temporal Consistency Constraints

IJCAI 2024poster

Motivated by the superior performance of image diffusion models, more and more researchers strive to extend these models to the text-based video editing task. Nevertheless, current video editing tasks mainly suffer from the dilemma between the high fine-tuning cost and the limited generation capacit…

2023

CHMATCH: Contrastive Hierarchical Matching and Robust Adaptive Threshold Boosted Semi-Supervised Learning

CVPR 2023poster

The recently proposed FixMatch and FlexMatch have achieved remarkable results in the field of semi-supervised learning. But these two methods go to two extremes as FixMatch and FlexMatch use a pre-defined constant threshold for all classes and an adaptive threshold for each category, respectively. B…

2023

CNVid-3.5M: Build, Filter, and Pre-Train the Large-Scale Public Chinese Video-Text Dataset

CVPR 2023poster

Owing to well-designed large-scale video-text datasets, recent years have witnessed tremendous progress in video-text pre-training. However, existing large-scale video-text datasets are mostly English-only. Though there are certain methods studying the Chinese video-text pre-training, they pre-train…

2023

Self-adaptive Context and Modal-interaction Modeling For Multimodal Emotion Recognition

ACL 2023findings

The multimodal emotion recognition in conversation task aims to predict the emotion label for a given utterance with its context and multiple modalities. Existing approaches achieve good results but also suffer from the following two limitations: 1) lacking modeling of diverse dependency ranges, i.e…

Cited by 15SourcePDFScholar
2022

Stacked Hybrid-Attention and Group Collaborative Learning for Unbiased Scene Graph Generation

CVPR 2022poster

Scene Graph Generation, which generally follows a regular encoder-decoder pipeline, aims to first encode the visual contents within the given image and then parse them into a compact summary graph. Existing SGG approaches generally not only neglect the insufficient modality fusion between vision and…

Cited by 127PDFcodeScholar