activity
20242026
most citedAPEX: Adaptive and Extreme Summarization for Personalized Knowledge Graphs

4 citations · 18 across the 22 of their papers we have counts for

collaborators

23 papers

cs.LG2026

EvoHarness-RL: Learning Runtime Harness Coordination for Self-Evolving Agents

Xuying Ning, Dongqi Fu, Tianxin Wei +17

Long-horizon LLM agents increasingly rely on external execution support to maintain state, track progress, recover from failures, and reuse experience across extended interactions.…

cs.CL2026

Code as Agent Harness

Xuying Ning, Katherine Tieu, Dongqi Fu +39

Recent large language models (LLMs) have demonstrated strong capabilities in understanding and generating code, from competitive programming to repository-level software engineerin…

cs.LG2026

Learning Higher-Order Interactions from Incomplete Spatiotemporal Data with Mixtures of Hypergraph Laplacians

Keshu Wu, Sixu Li, Zihao Li +3

Traffic sensor data exhibit strong temporal and cross-sensor dependencies, yet long gaps erase both a sensor's local history and the joint observations needed to learn its relation…

cs.AI2026

Heterogeneous Scientific Foundation Model Collaboration

Zihao Li, Jiaru Zou, Feihao Fang +6

Agentic large language model systems have demonstrated strong capabilities. However, their reliance on language as the universal interface fundamentally limits their applicability…

cs.AI2026

TSAQA: Time Series Analysis Question And Answering Benchmark

Baoyu Jing, Sanhorn Chen, Lecheng Zheng +13

Time series data are integral to critical applications across domains such as finance, healthcare, transportation, and environmental science. While recent work has begun to explore…

cs.LG2026

OWLEYE: Zero-Shot Learner for Cross-Domain Graph Data Anomaly Detection

Lecheng Zheng, Dongqi Fu, Zihao Li +1

Graph data is informative to represent complex relationships such as transactions between accounts, communications between devices, and dependencies among machines or processes. Co…

cs.LG2025★ 2 cited

Flow Matching Meets Biology and Life Science: A Survey

Zihao Li, Zhichen Zeng, Xiao Lin +9

Over the past decade, advances in generative modeling, such as generative adversarial networks, masked autoencoders, and diffusion models, have significantly transformed biological…

cs.LG2025

Learnable Spatial-Temporal Positional Encoding for Link Prediction

Katherine Tieu, Dongqi Fu, Zihao Li +2

Accurate predictions rely on the expressiveness power of graph deep learning frameworks like graph neural networks and graph transformers, where a positional encoding mechanism has…

cs.CL2025

Chain-of-Model Learning for Language Model

Kaitao Song, Xiaohua Wang, Xu Tan +14

In this paper, we propose a novel learning paradigm, termed Chain-of-Model (CoM), which incorporates the causal relationship into the hidden states of each layer as a chain style,…

cs.LG2025★ 1 cited

CLIMB: Class-imbalanced Learning Benchmark on Tabular Data

Zhining Liu, Zihao Li, Ze Yang +6

Class-imbalanced learning (CIL) on tabular data is important in many real-world applications where the minority class holds the critical but rare outcomes. In this paper, we presen…

cs.CL2025

Transformer Copilot: Learning from The Mistake Log in LLM Fine-tuning

Jiaru Zou, Yikun Ban, Zihao Li +4

Large language models are typically adapted to downstream tasks through supervised fine-tuning on domain-specific data. While standard fine-tuning focuses on minimizing generation…

cs.LG2025★ 1 cited

ClimateBench-M: A Multi-Modal Climate Data Benchmark with a Simple Generative Method

Dongqi Fu, Yada Zhu, Zhining Liu +10

Climate science studies the structure and dynamics of Earth's climate system and seeks to understand how climate changes over time, where the data is usually stored in the format o…

cs.CL2025

RAG over Tables: Hierarchical Memory Index, Multi-Stage Retrieval, and Benchmarking

Jiaru Zou, Dongqi Fu, Sirui Chen +5

Retrieval-Augmented Generation (RAG) enhances Large Language Models (LLMs) by integrating them with an external knowledge base to improve the answer relevance and accuracy. In real…

cs.LG2025★ 1 cited

Language in the Flow of Time: Time-Series-Paired Texts Weaved into a Unified Temporal Narrative

Zihao Li, Xiao Lin, Zhining Liu +8

While many advances in time series models focus exclusively on numerical data, research on multimodal time series, particularly those involving contextual textual information, rema…

cs.LG2024★ 3 cited

PyG-SSL: A Graph Self-Supervised Learning Toolkit

Lecheng Zheng, Baoyu Jing, Zihao Li +9

Graph Self-Supervised Learning (SSL) has emerged as a pivotal area of research in recent years. By engaging in pretext tasks to learn the intricate topological structures and prope…

cs.LG2024★ 4 cited

APEX: Adaptive and Extreme Summarization for Personalized Knowledge Graphs

Zihao Li, Dongqi Fu, Mengting Ai +1

Knowledge graphs (KGs), which store an extensive number of relational facts, serve various applications. Recently, personalized knowledge graphs (PKGs) have emerged as a solution t…

cs.LG2024

Can Graph Neural Networks Learn Language with Extremely Weak Text Supervision?

Zihao Li, Lecheng Zheng, Bowen Jin +5

While great success has been achieved in building vision models with Contrastive Language-Image Pre-training (CLIP) over internet-scale image-text pairs, building transferable Grap…

cs.SI2024

Local Clustering on Complex Graphs and Complex Hypergraphs

Zihao Li, Dongqi Fu, Hengyu Liu +1

Local/seeded clustering aims to find a compact cluster near the given starting instances. While most existing studies on graph clustering assume a discrete graph setting (i.e., unw…

cs.LG2024★ 3 cited

PageRank Bandits for Link Prediction

Yikun Ban, Jiaru Zou, Zihao Li +5

Link prediction is a critical problem in graph learning with broad applications such as recommender systems and knowledge graph completion. Numerous research efforts have been dire…

cs.SI2024

Hypergraphs as Weighted Directed Self-Looped Graphs: Spectral Properties, Clustering, Cheeger Inequality

Zihao Li, Dongqi Fu, Hengyu Liu +1

Hypergraphs naturally arise when studying group relations and have been widely used in the field of machine learning. To the best of our knowledge, the recently proposed edge-depen…

cs.AI2024★ 2 cited

What Do LLMs Need to Understand Graphs: A Survey of Parametric Representation of Graphs

Dongqi Fu, Liri Fang, Zihao Li +3

Graphs, as a relational data structure, have been widely used for various application scenarios, like molecule design and recommender systems. Recently, large language models (LLMs…

cs.IR2024

SpherE: Expressive and Interpretable Knowledge Graph Embedding for Set Retrieval

Zihao Li, Yuyi Ao, Jingrui He

Knowledge graphs (KGs), which store an extensive number of relational facts (head, relation, tail), serve various applications. While many downstream tasks highly rely on the expre…

cs.LG2024★ 1 cited

Heterogeneous Contrastive Learning for Foundation Models and Beyond

Lecheng Zheng, Baoyu Jing, Zihao Li +2

In the era of big data and Artificial Intelligence, an emerging paradigm is to utilize contrastive self-supervised learning to model large-scale heterogeneous data. Many existing f…