📝 Publications
Research Direction 1: Multimodal Agentic Search

Highlights
Highlights: SimpleSearch-VL is an efficient, reliable, and practical framework for multimodal agentic deep search.
It improves the agent’s search-and-verification process with Factorized Adaptive Rollout, evidence-verified reasoning, and self-summarized visits, achieving strong search behavior from only 5K SFT trajectories and 2K RL prompts.
Research Direction 2: Referring/Reasoning Video Object Segmentation (RVOS)

Highlights
Highlights: VideoSEG-O3 is a multi-turn RL framework for RVOS, actively exploring temporal intervals and keyframes through temporal-spatial CoT instead of relying on fixed sampled frames.
It further introduces SEG-aware logit calibration and a decoupled thinking trace, aligning token-level policy optimization with pixel-level mask quality.

Highlights
Highlights: DeRVOS decouples trajectory generation and multimodal understanding, with TAIS aligning and selecting instance trajectories for robust RVOS.

Highlights
Highlights: MomentSeg is a MLLM method, which unifies temporal grounding and segmentation, enabling key-frame extraction without relying on any external models.
In addition, we introduce a novel [FIND] token, which allows the model to perform temporal grounding without requiring any additional timestamp encoding.
Research Direction 3: Visual Grounding (REC, RES, GREC, GRES)




Highlights
Highlights: GC3VG generalizes the C3VG architecture and incorporates UCRM, which implicitly captures region/instance features and explicitly aligns them via an IoU-based relational constraint. The GHA strategy ensures feature-space consistency and boosts the discriminative strength of multi-modal representations.


Highlights
Highlights: SimVG explores the importance of multi-modal understanding for the VG task, proposing a simple yet effective framework. It also adopts a synchronized distillation learning strategy between the teacher and student branches, enhancing the performance of the student branch.
Research Direction 4: Cross-View Geo-Localization


