activity
20222026
most citedGeodesic Graph Neural Network for Efficient Graph Representation Learning

9 citations · 25 across the 13 of their papers we have counts for

collaborators

14 papers

cs.AI2026

FreeEvolve: Learning to Evolve Beyond Fixed Loops

Lecheng Kong, Like Hui, Nikos Kanakaris +3

Agent evolvers automate the design of the prompts, skills and workflows around language model agents, yet the optimization process they follow is still designed by hand: a fixed se…

cs.CL2026

Consilience for Verifier-Free Test-Time Scaling

Lecheng Kong, Like Hui, Haitao Mao +1

Test-time scaling often uses an external verifier, such as compilers and test cases in coding or trained value functions in robotics applications, to obtain high-quality rollouts.…

cs.LG2025

Round-trip Reinforcement Learning: Self-Consistent Training for Better Chemical LLMs

Lecheng Kong, Xiyuan Wang, Yixin Chen +1

Large Language Models (LLMs) are emerging as versatile foundation models for computational chemistry, handling bidirectional tasks like reaction prediction and retrosynthesis. Howe…

cs.LG2025

Dynamic Mixture-of-Experts for Incremental Graph Learning

Lecheng Kong, Theodore Vasiloudis, Seongjun Yun +2

Graph incremental learning is a learning paradigm that aims to adapt trained models to continuously incremented graphs and data over time without the need for retraining on the ful…

cs.LG2024

GOFA: A Generative One-For-All Model for Joint Graph Language Modeling

Lecheng Kong, Jiarui Feng, Hao Liu +4

Foundation models, such as Large Language Models (LLMs) or Large Vision Models (LVMs), have emerged as one of the most powerful tools in the respective fields. However, unlike text…

cs.LG2024

TAGLAS: An atlas of text-attributed graph datasets in the era of large graph and language models

Jiarui Feng, Hao Liu, Lecheng Kong +3

In this report, we present TAGLAS, an atlas of text-attributed graph (TAG) datasets and benchmarks. TAGs are graphs with node and edge features represented in text, which have rece…

cs.LG2023★ 5 cited

MAG-GNN: Reinforcement Learning Boosted Graph Neural Network

Lecheng Kong, Jiarui Feng, Hao Liu +3

While Graph Neural Networks (GNNs) recently became powerful tools in graph learning tasks, considerable efforts have been spent on improving GNNs' structural encoding ability. A pa…

cs.LG2023★ 8 cited

One for All: Towards Training One Graph Model for All Classification Tasks

Hao Liu, Jiarui Feng, Lecheng Kong +4

Designing a single model to address multiple tasks has been a long-standing objective in artificial intelligence. Recently, large language models have demonstrated exceptional capa…

cs.LG2023

Graph Contrastive Learning Meets Graph Meta Learning: A Unified Method for Few-shot Node Tasks

Hao Liu, Jiarui Feng, Lecheng Kong +3

Graph Neural Networks (GNNs) have become popular in Graph Representation Learning (GRL). One fundamental application is few-shot node classification. Most existing methods follow t…

cs.LG2023

Extending the Design Space of Graph Neural Networks by Rethinking Folklore Weisfeiler-Lehman

Jiarui Feng, Lecheng Kong, Hao Liu +4

Message passing neural networks (MPNNs) have emerged as the most popular framework of graph neural networks (GNNs) in recent years. However, their expressive power is limited by th…

cs.LG2023

Time Associated Meta Learning for Clinical Prediction

Hao Liu, Muhan Zhang, Zehao Dong +5

Rich Electronic Health Records (EHR), have created opportunities to improve clinical processes using machine learning methods. Prediction of the same patient events at different ti…

cs.CL2023★ 2 cited

A Multi-View Joint Learning Framework for Embedding Clinical Codes and Text Using Graph Neural Networks

Lecheng Kong, Christopher King, Bradley Fritz +1

Learning to represent free text is a core task in many clinical machine learning (ML) applications, as clinical text contains observations and plans not otherwise available for inf…

cs.LG2022★ 9 cited

Geodesic Graph Neural Network for Efficient Graph Representation Learning

Lecheng Kong, Yixin Chen, Muhan Zhang

Graph Neural Networks (GNNs) have recently been applied to graph learning tasks and achieved state-of-the-art (SOTA) results. However, many competitive methods run GNNs multiple ti…

cs.GT2022★ 1 cited

Manipulating Elections by Changing Voter Perceptions

Junlin Wu, Andrew Estornell, Lecheng Kong +1

The integrity of elections is central to democratic systems. However, a myriad of malicious actors aspire to influence election outcomes for financial or political benefit. A commo…