activity
20242026
collaborators

21 papers

cs.CL2026

OmniEdu: Open Foundation Models for Learning and Teaching

Hao Liang, Qihan Lin, Meiyi Qiang +5

Educational foundation models must solve problems, understand curriculum structure, diagnose learner difficulties, and provide appropriate instructional support. Existing education…

cs.LG2026

DataFlex-RL: An Evaluation Platform for RLVR Data Policies

Hao Liang, Mingrui Chen, Hengyi Feng +2

Data policies for reinforcement learning with verifiable rewards (RLVR) determine which rollouts are used, how strongly they are weighted, and which domains contribute to subsequen…

cs.CL2026

WorkSurface-Bench: Benchmarking Enterprise Agents on Multi-Surface Knowledge Routing

Hao Liang, Meiyi Qiang, Sizhe Qiu +2

Enterprise agents often need to integrate heterogeneous knowledge sources: documents for narrative facts, tables for computation, and dependency graphs for file relationships. Exis…

cs.CL2026

OmniaBench: Benchmarking General AI Agents Across Diverse Scenarios

Chengyu Shen, Yujie Fu, Gangtao Xin +13

Large language models are increasingly evolving from text generators into general agents capable of understanding user requests, invoking external tools, and completing complex tas…

cs.LG2026

DataPrep-Bench: Benchmarking LLMs as Training Data Preparators

Hao Liang, Qifeng Cai, Yibo Lin +11

The quality of training data fundamentally determines the capabilities of large language models (LLMs), yet no unified benchmark exists to measure how well LLMs, agents, and data-c…

cs.CL2026

GraspLLM: Towards Zero-Shot Generalization on Text-Attributed Graphs with LLMs

Hengyi Feng, Zeang Sheng, Meiyi Qiang +2

Research on Text-Attributed Graphs (TAGs) has gained significant attention recently due to its broad applications across various real-world data scenarios, such as citation network…

cs.CV2026

OpenWorldLib: A Unified Codebase and Definition of Advanced World Models

DataFlow Team, Bohan Zeng, Daili Hua +39

World models have garnered significant attention as a promising research direction in artificial intelligence, yet a clear and unified definition remains lacking. In this paper, we…

cs.MM2026

FLARE: Full-Modality Long-Video Audiovisual Retrieval Benchmark with User-Simulated Queries

Qijie You, Hao Liang, Mingrui Chen +4

As video becomes increasingly central to information dissemination and multimodal large language models (MLLMs) continue to advance, evaluating video retrieval has become increasin…

cs.CL2026

K12-KGraph: A Curriculum-Aligned Knowledge Graph for Benchmarking and Training Educational LLMs

Hao Liang, Qihan Lin, Zhaoyang Han +7

Large language models are increasingly used in K-12 education, but existing benchmarks mainly test exam question answering rather than understanding how curriculum knowledge is str…

cs.CV2026

TraceAV-Bench: Benchmarking Multi-Hop Trajectory Reasoning over Long Audio-Visual Videos

Hengyi Feng, Hao Liang, Mingrui Chen +6

Real-world audio-visual understanding requires chaining evidence that is sparse, temporally dispersed, and split across the visual and auditory streams, whereas existing benchmarks…

cs.LG2026

DataFlex: A Unified Framework for Data-Centric Dynamic Training of Large Language Models

Hao Liang, Zhengyang Zhao, Meiyi Qiang +22

Data-centric training has emerged as a promising direction for improving large language models (LLMs) by optimizing not only model parameters but also the selection, composition, a…

cs.CL2026

Towards Next-Generation LLM Training: From the Data-Centric Perspective

Hao Liang, Zhengyang Zhao, Zhaoyang Han +8

Large language models (LLMs) have demonstrated remarkable performance across a wide range of tasks and domains, with data playing a central role in enabling these advances. Despite…

cs.CL2026

One-Eval: An Agentic System for Automated and Traceable LLM Evaluation

Chengyu Shen, Yanheng Hou, Minghui Pan +8

Reliable evaluation is essential for developing and deploying large language models, yet in practice it often requires substantial manual effort: practitioners must identify approp…

cs.LG2025

DataFlow: An LLM-Driven Framework for Unified Data Preparation and Workflow Automation in the Era of Data-Centric AI

Hao Liang, Xiaochen Ma, Zhou Liu +32

The rapidly growing demand for high-quality data in Large Language Models (LLMs) has intensified the need for scalable, reliable, and semantically rich data preparation pipelines.…

cs.SD2025

BRACE: A Benchmark for Robust Audio Caption Quality Evaluation

Tianyu Guo, Hongyu Chen, Hao Liang +5

Automatic audio captioning is essential for audio understanding, enabling applications such as accessibility and content indexing. However, evaluating the quality of audio captions…

cs.CV2025

Generative Giants, Retrieval Weaklings: Why do Multimodal Large Language Models Fail at Multimodal Retrieval?

Hengyi Feng, Zeang Sheng, Meiyi Qiang +2

Despite the remarkable success of multimodal large language models (MLLMs) in generative tasks, we observe that they exhibit a counterintuitive deficiency in the zero-shot multimod…

cs.AI2025

Learning What Reinforcement Learning Can't: Interleaved Online Fine-Tuning for Hardest Questions

Lu Ma, Hao Liang, Meiyi Qiang +9

Recent advances in large language model (LLM) reasoning have shown that sophisticated behaviors such as planning and self-reflection can emerge through reinforcement learning (RL).…

cs.CV2025

LoVR: A Benchmark for Long Video Retrieval in Multimodal Contexts

Qifeng Cai, Hao Liang, Zhaoyang Han +6

Long videos contain a vast amount of information, making video-text retrieval an essential and challenging task in multimodal learning. However, existing benchmarks suffer from lim…

cs.CL2025

Let's Verify Math Questions Step by Step

Chengyu Shen, Zhen Hao Wong, Runming He +8

Large Language Models (LLMs) have recently achieved remarkable progress in mathematical reasoning. To enable such capabilities, many existing works distill strong reasoning models…

cs.CL2025

MathDebugger: Detecting and Diagnosing Errors in Synthetic Mathematical Data

Hao Liang, Meiyi Qiang, Yuying Li +7

Synthetic mathematical data has become an important resource for scaling the reasoning capabilities of large language models, yet errors in generated questions and solutions can su…

cs.CV2024

MathScape: Benchmarking Multimodal Large Language Models in Real-World Mathematical Contexts

Hao Liang, Linzhuang Sun, Minxuan Zhou +7

With the rapid progress of Multimodal LLMs, evaluating their mathematical reasoning capabilities has become an increasingly important research direction. In particular, visual-text…