activity
20242026
most citedUrbanVideo-Bench: Benchmarking Vision-Language Models on Embodied Intelligence with Video Data in Urban Spaces

17 citations · 22 across the 14 of their papers we have counts for

collaborators

15 papers

cs.RO2026

UniW(A)M: A Unified Mixture-of-Experts Framework for World and World-Action Models

Jingbo Xu, Jianjie Fang, Zhuohang Li +9

World models (WMs) and world-action models (WAMs) focus on future world prediction and executable action generation, respectively. Although these models learn shared physical dynam…

cs.AI2026

IMPACT: Attention Is the Interaction Map for Scalable Interaction-Aware World Model Training

Rongze Tang, Jianjie Fang, Zhaolu Wang +8

World models have made remarkable progress in action-conditioned future prediction for embodied agents, yet still struggle to model physically plausible interactions. Existing appr…

cs.AI2026

CAER: Causal Action Effect Reweighting for World Model Training

Jianjie Fang, Xvyuan Liu, Ziyou Wang +9

World models are becoming core infrastructure for embodied intelligence, with action-conditioned video generation providing controllable predictions of how scenes evolve after agen…

cs.CV2026

DensityKV: Density-Guided KV Cache Compression for Long Video Generation

Wenqu Zhao, Xuemin Chi, Xin Zhang +6

Autoregressive video diffusion models enable streaming generation through sliding-window attention, but each generated block is conditioned on previously generated content, causing…

cs.RO2026

WorldScape Policy 2.0: Empowering Steerable World Action Modeling with Reasoning-Augmented Memory and In-Context Learning

Haisheng Su, Zongdai Liu, Xin Jin +13

World Action Models (WAMs) offer a promising paradigm for robotic manipulation by jointly modeling visual state transitions and robot actions. However, existing WAMs are constraine…

cs.RO2026

Worldscape-MoE: A Unified Mixture-of-Experts World Model for Scalable Heterogeneous Action Control

Jianjie Fang, Yongyan Xu, Ziyou Wang +13

World models are rapidly becoming a core infrastructure for embodied intelligence and interactive agents: they provide controllable simulators in which agents can perceive, act, fo…

cs.RO2026

WorldVLN: Autoregressive World Action Model for Aerial Vision-Language Navigation

Baining Zhao, Jiacheng Xu, Weicheng Feng +13

Aerial vision-language navigation (VLN) requires agents to follow natural-language instructions through closed-loop perception and action in 3D environments. We argue that aerial V…

cs.CV2026

iWorld-Bench: A Benchmark for Interactive World Models with a Unified Action Generation Framework

Jianjie Fang, Yingshan Lei, Qin Wan +8

Achieving Artificial General Intelligence (AGI) requires agents that learn and interact adaptively, with interactive world models providing scalable environments for perception, re…

cs.AI2026

How Far Are Large Multimodal Models from Human-Level Spatial Action? A Benchmark for Goal-Oriented Embodied Navigation in Urban Airspace

Baining Zhao, Ziyou Wang, Jianjie Fang +8

Large multimodal models (LMMs) show strong visual-linguistic reasoning but their capacity for spatial decision-making and action remains unclear. In this work, we investigate wheth…

cs.CL2025★ 3 cited

Context-Aware Sentiment Forecasting via LLM-based Multi-Perspective Role-Playing Agents

Fanhang Man, Huandong Wang, Jianjie Fang +4

User sentiment on social media reveals the underlying social trends, crises, and needs. Researchers have analyzed users' past messages to trace the evolution of sentiments and reco…

cs.AI2025

Embodied-R: Collaborative Framework for Activating Embodied Spatial Reasoning in Foundation Models via Reinforcement Learning

Baining Zhao, Ziyou Wang, Jianjie Fang +7

Humans can perceive and reason about spatial relationships from sequential visual observations, such as egocentric video streams. However, how pretrained models acquire such abilit…

cs.CV2025

The Point, the Vision and the Text: Does Point Cloud Boost Spatial Reasoning of Large Language Models? A Bias-Controlled Study

Weichen Zhang, Ruiying Peng, Xin Zeng +9

3D Large Language Models (LLMs) leveraging spatial information in point clouds for 3D spatial reasoning attract great attention. Despite some promising results, the advantages of p…

cs.CV2025★ 17 cited

UrbanVideo-Bench: Benchmarking Vision-Language Models on Embodied Intelligence with Video Data in Urban Spaces

Baining Zhao, Jianjie Fang, Zichao Dai +8

Large multimodal models exhibit remarkable intelligence, yet their embodied cognitive abilities during motion in open-ended urban 3D space remain to be explored. We introduce a ben…

cs.CV2025

Open3D-VQA: A Benchmark for Comprehensive Spatial Reasoning with Multimodal Large Language Model in Open Space

Weichen Zhang, Zile Zhou, Xin Zeng +7

Spatial reasoning is a fundamental capability of multimodal large language models (MLLMs), yet their performance in open aerial environments remains underexplored. In this work, we…

cs.AI2024★ 2 cited

EmbodiedCity: A Benchmark Platform for Embodied Agent in Real-world City Environment

Chen Gao, Baining Zhao, Weichen Zhang +9

Embodied artificial intelligence emphasizes the role of an agent's body in generating human-like behaviors. The recent efforts on EmbodiedAI pay a lot of attention to building up m…